Form 485BPOS SEI DAILY INCOME TRUST

May 30, 2025 5:12 PM EDT

 

As Filed With The U.S. Securities And Exchange Commission On May 30, 2025

 

File No. 002-77048

File No. 811-03451

 

 

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

 

FORM N-1A

 

REGISTRATION STATEMENT UNDER THE 

SECURITIES ACT OF 1933 

POST-EFFECTIVE AMENDMENT NO. 96

and

REGISTRATION STATEMENT UNDER THE 

INVESTMENT COMPANY ACT OF 1940 

AMENDMENT NO. 95

 

 

 

SEI DAILY INCOME TRUST 

(Exact Name of Registrant as Specified in Charter)

 

SEI Investments Company 

One Freedom Valley Drive 

Oaks, Pennsylvania 19456 

(Address of Principal Executive Offices)

 

(610) 676-1000 

(Registrant’s Telephone Number)

 

David F. McCann, Esq. 

SEI Investments Company 

One Freedom Valley Drive 

Oaks, Pennsylvania 19456 

(Name and Address of Agent for Service)

 

Copies to: 

Timothy W. Levin, Esq. 

Morgan, Lewis & Bockius LLP 

2222 Market Street 

Philadelphia, Pennsylvania 19103 

 

John J. O'Brien, Esq. 

Morgan, Lewis & Bockius LLP 

2222 Market Street 

Philadelphia, Pennsylvania 19103

 

 

 

It is proposed that this filing become effective (check appropriate box)

 

immediately upon filing pursuant to paragraph (b)

 

on May 31, 2025 pursuant to paragraph (b)

 

60 days after filing pursuant to paragraph (a)(1)

 

on [date] pursuant to paragraph (a)(1)

 

75 days after filing pursuant to paragraph (a)(2)

 

on [date] pursuant to paragraph (a)(2) of Rule 485.

 

If appropriate, check the following box:

 

This post-effective Amendment designates a new effective date for a previously filed Post-Effective Amendment.

 

 

 

May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Class F Shares

•  Ultra Short Duration Bond Fund (SECPX)

•  Short-Duration Government Fund (TCSGX)

•  GNMA Fund (SEGMX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Not all Funds appearing in this prospectus are available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

 

ULTRA SHORT DURATION BOND FUND

   

1

   

SHORT-DURATION GOVERNMENT FUND

   

7

   

GNMA FUND

   

12

   

Purchase and Sale of Fund Shares

   

17

   

Tax Information

   

17

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

17

   

MORE INFORMATION ABOUT INVESTMENTS

   

17

   

MORE INFORMATION ABOUT RISKS

   

18

   

Risk Information Common to the Funds

   

18

   

More Information About Principal Risks

   

18

   

GLOBAL ASSET ALLOCATION

   

26

   
MORE INFORMATION ABOUT THE FUNDS'
BENCHMARK INDEXES
   

26

   

INVESTMENT ADVISER

   

26

   

SUB-ADVISERS

   

28

   

Information About Fee Waivers

   

29

   
PURCHASING, EXCHANGING AND SELLING
FUND SHARES
   

30

   

HOW TO PURCHASE FUND SHARES

   

30

   

Pricing of Fund Shares

   

31

   
Frequent Purchases and Redemptions of
Fund Shares
   

34

   

Foreign Investors

   

35

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

35

   

HOW TO EXCHANGE YOUR FUND SHARES

   

36

   

HOW TO SELL YOUR FUND SHARES

   

36

   

Receiving Your Money

   

36

   

Methods Used to Meet Redemption Obligations

   

37

   

Low Balance Redemptions

   

37

   

Suspension of Your Right to Sell Your Shares

   

37

   

Large Redemptions

   

37

   

Telephone Transactions

   

37

   

Unclaimed Property

   

38

   

DISTRIBUTION OF FUND SHARES

   

38

   

SERVICE OF FUND SHARES

   

38

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

38

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

   

39

   

Dividends and Distributions

   

39

   

Taxes

   

39

   

ADDITIONAL INFORMATION

   

40

   

FINANCIAL HIGHLIGHTS

   

42

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
 

Back Cover

 

SEI / PROSPECTUS

ULTRA SHORT DURATION BOND FUND

Fund Summary

Investment Goal

Provide higher current income than that typically offered by a money market fund while maintaining a high degree of liquidity and a correspondingly higher risk of principal volatility.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class F Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.52

%

 

Total Annual Fund Operating Expenses

   

0.62

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Ultra Short Duration Bond Fund — Class F Shares

 

$

63

   

$

199

   

$

346

   

$

774

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 60% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Ultra Short Duration Bond Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in investment grade U.S. dollar-denominated debt instruments, including: (i) commercial paper and other corporate obligations; (ii) certificates of deposit, time deposits, bankers' acceptances, bank notes, and other obligations of U.S. savings and loan and thrift institutions, U.S. commercial banks (including foreign branches of such banks) and foreign banks that meet


1


SEI / PROSPECTUS

certain asset requirements; (iii) U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. Government; (iv) mortgage-backed securities; (v) asset-backed securities; (vi) fully-collateralized repurchase agreements involving any of the foregoing obligations; and (vii) U.S. dollar-denominated instruments of foreign issuers. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund.

Using a top-down strategy and bottom-up security selection, the sub-advisers (each, a Sub-Adviser and collectively, the Sub-Advisers) seek attractively-valued securities that offer competitive yields and that are issued by issuers that are on a sound financial footing. The Sub-Advisers also consider factors such as the anticipated level of interest rates, relative valuations and yield spreads among various sectors, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five-year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%. While the Fund may invest in securities with any maturity or duration, the Sub-Advisers will strive to maintain a portfolio duration for the Fund of 18 months or less under normal market conditions.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Investment Style Risk — The risk that short-duration fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments


2


SEI / PROSPECTUS

held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as to perceptions of the creditworthiness and business prospects of individual issuers.

Commercial Paper Risk — Commercial paper is a short-term obligation with a maturity generally ranging from one to 270 days and is issued by U.S. or foreign companies or other entities in order to finance their current operations. Such investments are unsecured and usually discounted from their value at maturity. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities and will tend to fall when interest rates rise and rise when interest rates fall. Asset-backed commercial paper may be issued by structured investment vehicles or other conduits that are organized to issue the commercial paper and to purchase trade receivables or other financial assets. The repayment of asset-backed commercial paper depends primarily on the cash collections received from such an issuer's underlying asset portfolio and the issuer's ability to issue new asset-backed commercial paper.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Asset-Backed Securities Risk — Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities. Securitization trusts generally do not have any assets or sources of funds other than the receivables and related property they own, and asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity. Asset-backed securities may be more illiquid than more conventional types of fixed income securities that the Fund may acquire.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Foreign Issuer Risk — The risk that issuers in foreign countries face political and economic events unique to such countries. These events will not necessarily affect the U.S. economy or similar issuers located in the U.S.

Currency Risk — As a result of the Fund's investments in securities or other investments denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors


3


SEI / PROSPECTUS

such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also


4


SEI / PROSPECTUS

cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 2.73% (06/30/20)
Worst Quarter: -1.63% (03/31/20)
The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.19%.





 

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.


5


SEI / PROSPECTUS

Ultra Short Duration Bond Fund — Class F

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(9/28/1993)
 

Fund Return Before Taxes

   

5.49

%

   

2.42

%

   

2.05

%

   

2.93

%

 

Fund Return After Taxes on Distributions

   

3.53

%

   

1.42

%

   

1.21

%

   

1.71

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

3.22

%

   

1.42

%

   

1.20

%

   

1.75

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no
deductions for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

4.26

%

 
Bloomberg Short U.S. Treasury 9-12 Month Index Return (reflects no
deduction for fees, expenses or taxes)
   

5.05

%

   

2.24

%

   

1.76

%

   

2.84

%

 

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Advisers and Portfolio Managers.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 
MetLife Investment
Management, LLC
  Scott Pavlak, CFA
Juan Peruyero
  Since 2012
Since 2020
  Senior Portfolio Manager
Senior Portfolio Manager
 
Wellington Management
Company LLP
 

Marc Piccuirro

 

Since 2023

  Senior Managing Director and Fixed Income
Portfolio Manager
 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 17 of this prospectus.


6


SEI / PROSPECTUS

SHORT-DURATION GOVERNMENT FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class F Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.47

%

 

Total Annual Fund Operating Expenses

   

0.57

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Short-Duration Government Fund — Class F Shares

 

$

58

   

$

183

   

$

318

   

$

714

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 99% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Short-Duration Government Fund invests substantially all of its net assets in U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. Government, including mortgage-backed securities, and repurchase agreements collateralized by such obligations. The Fund may invest in securities issued by various entities sponsored by the U.S. Government, such as the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. These issuers are chartered or sponsored by acts of Congress; however, their


7


SEI / PROSPECTUS

securities are neither issued nor guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. Government. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund. Due to its investment strategy, the Fund may buy and sell securities and other instruments frequently.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%. While the Fund may invest in securities with any maturity or duration, the Sub-Adviser will strive to maintain a portfolio duration of up to three years under normal market conditions.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Investment Style Risk — The risk that short-duration U.S. Government fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.


8


SEI / PROSPECTUS

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.


9


SEI / PROSPECTUS

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and taxes subject to ordinary income tax rates as opposed to more favorable capital gains rates, which may affect the Fund's performance.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 3.08% (09/30/24)
Worst Quarter: -2.55% (03/31/22)
The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.62%.





 


10


SEI / PROSPECTUS

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Short-Duration Government Fund — Class F

 

1 Year

 

5 Years

  Since
10 Years
  Inception
(2/17/1987)
 

Fund Return Before Taxes

   

4.77

%

   

1.37

%

   

1.27

%

   

3.86

%

 

Fund Return After Taxes on Distributions

   

3.35

%

   

0.60

%

   

0.57

%

   

2.46

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

2.81

%

   

0.72

%

   

0.66

%

   

2.46

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no deductions
for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

5.21

%*

 
ICE BofA 1-3 Year U.S. Treasury Index Return (reflects no deduction for
fees, expenses or taxes)
   

4.08

%

   

1.40

%

   

1.40

%

   

3.98

%

 

* Benchmark returns since inception do not include the return for the partial month following inception date of the Fund (2/17/1987 — 2/28/1987). Annualization calculation of the inception to date returns is based on the actual inception date (2/17/1987).

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser and Portfolio Manager.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 

Wellington Management Company LLP

 

Brian Conroy, CFA

 

Since 2012

 

Senior Managing Director and Fixed Income Portfolio Manager

 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 17 of this prospectus.


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SEI / PROSPECTUS

GNMA FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class F Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.61

%

 

Total Annual Fund Operating Expenses

   

0.71

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

GNMA Fund — Class F Shares

 

$

73

   

$

227

   

$

395

   

$

883

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 246% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the GNMA Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in mortgage-backed securities issued by the Government National Mortgage Association (GNMA). The Fund may also invest in U.S. Treasury securities and U.S. Government securities obligations, and repurchase agreements collateralized by such obligations. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures


12


SEI / PROSPECTUS

contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund. Due to its investment strategy, the Fund may buy and sell securities and other instruments frequently.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Investment Style Risk — The risk that GNMA securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.


13


SEI / PROSPECTUS

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

When-Issued and Delayed Delivery Securities Risk — When-issued and delayed delivery securities involve the risk that the security the Fund buys will lose value prior to its delivery.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.


14


SEI / PROSPECTUS

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and taxes subject to ordinary income tax rates as opposed to more favorable capital gains rates, which may affect the Fund's performance.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 6.65% (12/31/23)
Worst Quarter: -5.10% (09/30/22)
The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 2.76%.




 


15


SEI / PROSPECTUS

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases, the Fund's return after taxes may exceed the Fund's return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

GNMA Fund — Class F

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(3/20/1987)
 

Fund Return Before Taxes

   

1.13

%

   

-0.79

%

   

0.66

%

   

4.81

%

 

Fund Return After Taxes on Distributions

   

-0.16

%

   

-1.78

%

   

-0.42

%

   

2.93

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

0.66

%

   

-1.00

%

   

0.06

%

   

3.01

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no
deduction for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

5.23

%*

 
Bloomberg GNMA Index Return (reflects no deduction for fees,
expenses or taxes)
   

0.96

%

   

-0.60

%

   

0.85

%

   

5.13

%

 

* Benchmark returns since inception do not include the return for the partial month following inception date of the Fund (3/20/1987 — 3/31/1987). Annualization calculation of the inception to date returns is based on the actual inception date (3/20/1987).

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser and Portfolio Manager.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 

Wellington Management Company LLP

 

Brian Conroy, CFA

 

Since 2012

 

Senior Managing Director and Fixed Income Portfolio Manager

 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 17 of this prospectus.


16


SEI / PROSPECTUS

Purchase and Sale of Fund Shares

Class F shares do not have a minimum investment requirement; however, shareholders are expected to maintain a minimum account balance of $1,000. You may purchase and redeem shares of a Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Funds' transfer agent (the Transfer Agent) or the Funds' authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Funds are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), a Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

Each Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

Each Fund has its own investment goal and strategies for reaching that goal. Each Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers who manage portions of each Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Funds and attempts to ensure that the Sub-Advisers comply with the Funds' investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Funds' Board of Trustees (Board).

The investments and strategies described in this prospectus are those that the Sub-Advisers use under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, each Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Funds will do so only if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income. Of course, there is no guarantee that any Fund will achieve its investment goal. Although not expected to be a component of the Funds' principal investment strategies, each Fund may lend its securities to certain financial institutions in an attempt to earn additional income.


17


SEI / PROSPECTUS

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Funds

Investing in the Funds involves risk, and there is no guarantee that a Fund will achieve its investment goal. SIMC and the Sub-Advisers, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in a Fund, just as you could with other investments. An investment in a Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

The value of your investment in a Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities a Fund owns and the markets in which those securities trade. The effect on a Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Funds:

Asset-Backed Securities — The Ultra Short Duration Bond Fund may invest in asset-backed securities. Asset-backed securities are securities that are backed primarily by the cash flows of a discrete pool of fixed or revolving receivables or other financial assets that by their terms convert into cash within a finite time period. Asset-backed securities include mortgage-backed securities, but the term is more commonly used to refer to securities supported by non-mortgage assets such as auto loans, motor vehicle leases, student loans, credit card receivables, floorplan receivables, equipment leases and peer-to-peer loans. The assets are removed from any potential bankruptcy estate of an operating company through the true sale of the assets to an issuer that is a special purpose entity, and the issuer obtains a perfected security interest in the assets. Payments of principal of and interest on asset-backed securities rely entirely on the performance of the underlying assets. Asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity and therefore, if the assets or sources of funds available to the issuer are insufficient to pay those securities, the Fund will incur losses. In addition, asset-backed securities entail prepayment risk that may vary depending on the type of asset, but is generally less than the prepayment risk associated with mortgage-backed securities.

Losses may be greater for asset-backed securities that are issued as "pass-through certificates" rather than as debt securities because those types of certificates only represent a beneficial ownership interest in the related assets and their payment is based primarily on collections actually received. For asset-backed securities as a whole, if a securitization issuer defaults on its payment obligations due to losses or shortfalls on the assets held by the issuer, a sale or liquidation of the assets may not be sufficient to support payments on the securities and the Fund, as a securityholder, may suffer a loss.

There is a limited secondary market for asset-backed securities. Consequently, it may be difficult for the Fund to sell or realize profits on those securities at favorable times or for favorable prices.

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold


18


SEI / PROSPECTUS

on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Corporate Fixed Income Securities — Corporate fixed income securities are fixed income securities issued by public and private businesses. Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers. Corporate fixed income securities are subject to the risk that the issuer may not be able to pay interest or, ultimately, to repay principal upon maturity. Interruptions or delays of these payments could adversely affect the market value of the security. In addition, due to lack of uniformly available information about issuers or differences in the issuers' sensitivity to changing economic conditions, it may be difficult to measure the credit risk of securities issued by private businesses.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Funds to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Funds invest primarily in investment grade securities, the Funds could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or otherwise honor its obligations.

Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Funds in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Funds' investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Funds' assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Funds. These events, and any other future events, may adversely affect the prices and liquidity of the Funds' investments and could result in disruptions in the trading markets.

Derivatives — Derivatives are instruments that derive their value from an underlying security, financial asset or an index. Examples of derivative instruments include futures contracts and forward contracts. Changes in the market value of a security that is a reference asset for a derivative instrument may not be proportionate to changes in the market value of the derivative instrument itself. There may not be a liquid market for the


19


SEI / PROSPECTUS

Funds to sell a derivative instrument, which could result in difficulty in closing the position prior to expiration. Moreover, certain derivative instruments can magnify the extent of losses incurred due to changes in the market value of the securities to which they relate. Some derivative instruments are subject to counterparty risk. A default by the counterparty on its payments to the Funds will cause the value of your investment in the Funds to decrease. The Funds' use of derivatives is also subject to credit risk, leverage risk, lack of availability risk, valuation risk, correlation risk, counterparty risk and tax risk. Credit risk is described above and leverage risk is described below. A Fund's counterparties to its derivative contracts present the same types of credit risk as issuers of fixed income securities. Lack of availability risk is the risk that suitable derivative transactions, such as roll-forward contracts, may not be available in all circumstances for risk management or other purposes. Valuation risk is the risk that a particular derivative may be valued incorrectly. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. Counterparty risk is the risk that the counterparty to a derivatives contract, a clearing member used by the Fund to hold a cleared derivative contract, or a borrower of the Fund's securities is unable or unwilling to make timely settlement payments, return the Fund's margin or otherwise honor its obligations. Tax risk is the risk that the use of derivatives may cause the Funds to realize higher amounts of short-term capital gains or otherwise affect a Fund's ability to pay out dividends subject to preferential rates or the dividends received deduction, thereby increasing the amount of taxes payable by some shareholders. These risks could cause the Funds to lose more than the principal amount invested. Some derivatives have the potential for unlimited loss, regardless of the size of the Funds' initial investment.

Derivatives are also subject to a number of other risks described elsewhere in this prospectus. Derivatives transactions conducted outside the U.S. may not be conducted in the same manner as those entered into on U.S. exchanges, and may be subject to different margin, exercise, settlement or expiration procedures. Derivatives transactions conducted outside the U.S. also are subject to the risks affecting foreign securities, currencies and other instruments, in addition to other risks.

Dollar Rolls — The Funds, particularly the GNMA Fund, may enter into dollar rolls, subject to the Funds' limitations on borrowing. Dollar rolls are transactions in which a Fund sells mortgage-related securities, such as a security issued by GNMA, for delivery in the current month and simultaneously contracts to repurchase substantially similar securities on a specified future date at a pre-determined price. The dealer with which the Fund enters into a dollar-roll transaction is not obligated to return the same securities as those originally sold by the Fund, but only securities that are substantially identical. If the broker-dealer to whom a Fund sells the security becomes insolvent, the Fund's right to repurchase the security may be restricted. Dollar roll transactions may give rise to leverage risk. A Fund's obligations under a dollar roll agreement must be covered by segregated or "earmarked" liquid assets equal in value to the securities subject to repurchase by the Fund. To the extent that positions in dollar roll agreements are not covered by segregated or "earmarked" liquid assets, such transactions would be subject to a Fund's restrictions on borrowings. Furthermore, because dollar roll transactions may be for terms ranging between one and six months, dollar roll transactions may be deemed "illiquid" and subject to a Fund's overall limitations on investments in illiquid securities. Other risks involved in entering into dollar rolls include the risk that the value of the security may change adversely over the term of the dollar roll and that the security a Fund is required to repurchase may be worth less than the security that the Fund originally held. Leverage risk and liquidity risk are discussed in greater detail below.

Duration — Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security's price to changes in interest rates. For example, if a fixed income security has a five-year duration, it will decrease in value by approximately 5% if interest rates rise 1% and increase in value by


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SEI / PROSPECTUS

approximately 5% if interest rates fall 1%. Fixed income instruments with longer duration typically have higher risk and higher volatility. Longer-term fixed-income securities in which a portfolio may invest are more volatile than shorter-term fixed-income securities. A portfolio with a longer average portfolio duration is typically more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Extension — The Funds' investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Funds may exhibit additional volatility.

Fixed Income Market — The prices of a Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Fund. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. In the case of foreign securities, price fluctuations will reflect international economic and political events, as well as changes in currency valuations relative to the U.S. dollar. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, a Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Foreign Issuers — The Ultra Short Duration Bond Fund may invest in foreign issuers. Investing in issuers located in foreign countries poses distinct risks because political and economic events unique to those countries or regions will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of the Fund's investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer's home country.

Additionally, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may result in a Fund having to sell such prohibited securities at inopportune times. Such prohibited securities may have less liquidity as a result of such U.S. Government designation and the market price of such prohibited securities may decline, which may cause the Fund to incur losses. In addition, the large-scale invasion of Ukraine by Russia in February 2022 and the resulting responses, including economic sanctions by the U.S. and other countries against certain individuals and companies could negatively impact the Funds' performance and cause losses on your investment in the Funds.


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Forward Contracts — A forward contract, or a "forward," involves a negotiated obligation to purchase or sell a specific security or currency at a future date (with or without delivery required), which may be any fixed number of days from the date of the contract agreed upon by the parties, at a price set at the time of the contract. Forward contracts are not traded on exchanges; rather, a bank or dealer will act as agent or as principal in order to make or take future delivery of a specified lot of a particular security or currency for a Fund's account. Risks associated with forwards may include: (i) an imperfect correlation between the movement in prices of forward contracts and the securities or currencies underlying them; (ii) an illiquid market for forwards; (iii) difficulty in obtaining an accurate value for the forwards; and (iv) the risk that the counterparty to the forward contract will default or otherwise fail to honor its obligation. Because forwards require only a small initial investment in the form of a deposit or margin, they involve a high degree of leverage. Forwards are also subject to credit risk, liquidity risk and leverage risk, each of which is further described elsewhere in this section.

Futures Contracts — Futures contracts, or "futures," provide for the future sale by one party and purchase by another party of a specified amount of a specific security or asset at a specified future time and at a specified price (with or without delivery required). The risks of futures include (i) leverage risk; (ii) correlation or tracking risk and (iii) liquidity risk. Because futures require only a small initial investment in the form of a deposit or margin, they involve a high degree of leverage. Accordingly, the fluctuation of the value of futures in relation to the underlying assets upon which they are based is magnified. Thus, the Funds may experience losses that exceed losses experienced by funds that do not use futures contracts and which may be unlimited, depending on the structure of the contract. There may be imperfect correlation, or even no correlation, between price movements of a futures contract and price movements of investments for which futures are used as a substitute, or which futures are intended to hedge. Lack of correlation (or tracking) may be due to factors unrelated to the value of the investments being hedged, such as speculative or other pressures on the markets in which these instruments are traded. Consequently, the effectiveness of futures as a security substitute or as a hedging vehicle will depend, in part, on the degree of correlation between price movements in the futures and price movements in underlying securities. While futures contracts are generally liquid instruments, under certain market conditions they may become illiquid. Futures exchanges may impose daily or intra-day price change limits and/or limit the volume of trading. Additionally, government regulation may further reduce liquidity through similar trading restrictions. As a result, a Fund may be unable to close out its futures contracts at a time that is advantageous. If movements in the markets for security futures contracts or the underlying security decrease the value of the Funds' positions in security futures contracts, the Funds may be required to have or make additional funds available to its brokerage firm as margin. If the Funds' accounts are under the minimum margin requirements set by the exchange or the brokerage firm, its position may be liquidated at a loss, and the Funds will be liable for the deficit, if any, in its account. A Fund may also experience losses due to systems failures or inadequate system back-up or procedures at the brokerage firm(s) carrying the Fund's positions. The successful use of futures depends upon a variety of factors, particularly the ability of the Sub-Advisers to predict movements of the underlying securities markets, which requires different skills than predicting changes in the prices of individual securities. There can be no assurance that any particular futures strategy adopted will succeed.

Inflation Protected Securities — Certain Funds may invest in inflation protected securities, including Treasury Inflation Protected Securities (TIPS), the value of which generally will fluctuate in response to changes in "real" interest rates. Real interest rates represent nominal (or stated) interest rates reduced by the expected impact of inflation. The value of an inflation-protected security generally decreases when real interest rates rise and generally increases when real interest rates fall. In addition, the principal value of an inflation-protected security is periodically adjusted up or down along with the rate of inflation. If the measure of


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inflation falls, the principal value of the inflation-protected security will be adjusted downwards, and consequently, the interest payable on the security will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed by the United States Treasury in the case of TIPS. For securities that do not provide a similar guarantee, the adjusted principal value of the security to be repaid at maturity is subject to credit risk.

Interest Rate — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which a Fund invests. In a low interest rate environment, the risk of a decline in value of the Fund's portfolio securities associated with rising rates are heightened because there may be a greater likelihood of rates increasing, potentially rapidly. In a declining interest rate environment, the Fund generally will be required to invest available cash in instruments with lower interest rates than those of the current portfolio securities. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, whereas others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources.

Investment Style — Investment style risk is the risk that a Fund's investment in certain securities in a particular market segment pursuant to its particular investment strategy may underperform other market segments or the market as a whole.

Leverage — Certain Fund transactions, such as derivatives or reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on a Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of a Fund's portfolio securities. Rule 18f-4 under the 1940 Act requires, among other things, that a Fund either use derivatives in a limited manner or comply with an outer limit on fund leverage risk based on one of two value-at-risk (VaR) tests. The use of leverage may also cause a Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. A Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Mortgage-Backed Securities — Mortgage-backed securities are a class of asset-backed securities representing an interest in a pool or pools of whole mortgage loans (which may be residential mortgage loans or commercial mortgage loans). Mortgage-backed securities held or acquired by a Fund could include (i) obligations guaranteed by federal agencies of the U.S. Government, such as Government National Mortgage Association (Ginnie Mae), which are backed by the "full faith and credit" of the United States, (ii) securities issued by Federal National Mortgage Association (Fannie Mae) and Federal Home Loan Mortgage Corporation (Freddie Mac), which are not backed by the "full faith and credit" of the United States but are guaranteed by the U.S. Government as to timely payment of principal and interest, (iii) securities


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(commonly referred to as "private-label RMBS") issued by private issuers that represent an interest in or are collateralized by whole residential mortgage loans without a government guarantee and (iv) commercial mortgage-backed securities (CMBS), which are multi-class or pass-through securities backed by a mortgage loan or a pool of mortgage loans secured by commercial property such as industrial and warehouse properties, office buildings, retail space and shopping malls, multifamily properties and cooperative apartments. Because private-label RMBS and CMBS are not issued or guaranteed by the U.S. Government, those securities generally are structured with one or more types of credit enhancement. There can be no assurance, however, that credit enhancements will support full payment to a Fund of the principal and interest on such obligations. In addition, changes in the credit quality of the entity that provides credit enhancement could cause losses to a Fund and affect its share price.

The Funds may invest in mortgage-backed securities in the form of debt or in the form of "pass-through" certificates. Pass-through certificates, which represent beneficial ownership interests in the related mortgage loans, differ from debt securities, which generally provide for periodic fixed payments of interest on and principal of the related notes. Mortgage pass-through securities provide for monthly payments that are a "pass-through" of the monthly interest and principal payments (including any prepayments) made by the individual borrowers on the pooled mortgage loans, net of any fees and expenses owed to the servicers of the mortgage loans and other transaction parties that receive payment from collections on the mortgage loans.

The performance of mortgage loans and, in turn, the mortgage-backed securities acquired by a Fund, is influenced by a wide variety of economic, geographic, social and other factors, including general economic conditions, the level of prevailing interest rates, the unemployment rate, the availability of alternative financing and homeowner behavior.

The rate and aggregate amount of distributions on mortgage-backed securities, and therefore the average lives of those securities and the yields realized by a Fund, will be sensitive to the rate of prepayments (including liquidations) and modifications of the related mortgage loans, any losses and shortfalls on the related mortgage loans allocable to the tranches held by the Fund and the manner in which principal payments on the related mortgage loans are allocated among the various tranches in the particular securitization transaction. Furthermore, mortgage-backed securities are sensitive to changes in interest rates, but may respond to those changes differently from other fixed income securities due to the possibility of prepayment of the mortgage loans. Among other factors, a significant amount of defaults, rapid prepayments or prepayment interest shortfalls may erode amounts available for distributions to a Fund. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect a Fund's actual yield to maturity, even if the average rate of principal payments is consistent with the Fund's expectations. If prepayments of mortgage loans occur at a rate faster than that anticipated by a Fund, payments of interest on the mortgage-backed securities could be significantly less than anticipated. Similarly, if the number of mortgage loans that are modified is larger than that anticipated by a Fund, payments of principal and interest on the mortgage-backed securities could be significantly less than anticipated.

Opportunity — A Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Portfolio Turnover — The Short-Duration Government and GNMA Funds are subject to portfolio turnover risk, which means that, due to its investment strategies, the Funds may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Funds' performance.


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Prepayment — The Funds' investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Funds having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Funds.

Reallocation — In addition to managing the Funds, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Funds are designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations among the Funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds. Because a significant portion of the assets in the Funds may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could in certain cases have a detrimental effect on Funds that are being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing a Fund to incur taxable gains. SIMC seeks to manage the impact to the Funds resulting from reallocations in the Strategies.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by a Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. In the event of a default or bankruptcy by a selling financial institution, a Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Funds could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable maturities. Some of the U.S. Government securities that a Fund may hold are not guaranteed or backed by the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

When-Issued and Delayed Delivery Securities and Forward Commitments — When-issued and delayed delivery securities and forward commitments involve the risk that the security a Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security's price.


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GLOBAL ASSET ALLOCATION

The Funds and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Funds are designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Funds and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations among the Funds and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds and other funds. Because a significant portion of the assets in the Funds and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could, in certain cases, have a detrimental effect on the Funds. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

MORE INFORMATION ABOUT THE FUNDS' BENCHMARK INDEXES

The following information describes the various indexes referred to in the Performance Information sections of this prospectus. An index measures the market price of a specific group of securities in a particular market or securities in a market sector. You cannot invest directly in an index. An index does not have an investment adviser and does not pay any commissions or expenses. If an index had expenses, its performance would be lower.

The Bloomberg Short U.S. Treasury 9-12 Month Index is a widely-recognized, market-weighted index of U.S. Treasury bonds with remaining maturities between nine and twelve months.

The ICE BofA 1-3 Year U.S. Treasury Index is a widely-recognized, market-weighted index of U.S. Treasury Bonds with maturities between one and three years.

The Bloomberg GNMA Index is a total comprehensive GNMA index comprised of 30-year GNMA pass-throughs, 15-year GNMA pass-throughs and GNMA graduated payment mortgages. It is an unmanaged, market value-weighted index. It is commonly used as a comparison for GNMA funds.

The Bloomberg U.S. Aggregate Bond Index (TR) (USD) is a broad-based flagship benchmark that measures the investment grade, US dollar-denominated, fixed-rate taxable bond market. The index includes Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate pass-throughs), asset-backed securities and commercial mortgage-backed securities (agency and non-agency).

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Funds. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management. For its advisory services, SIMC receives a fee at the following annual rates: (i) 0.10% up to $500 million; 0.075% of such net assets between


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$500 million and $1 billion; and 0.05% of such net assets in excess of $1 billion based on the combined daily net assets of the Short-Duration Government and GNMA Funds and (ii) 0.10% up to $500 million; 0.075% of such net assets between $500 million and $1 billion; and 0.05% of such net assets in excess of $1 billion based on the daily net assets of the Ultra Short Duration Bond Fund. For the fiscal year ended January 31, 2025, SIMC received investment advisory fees at the following annual rates:

    Investment
Advisory Fees
Before Fee Waivers
  Investment
Advisory Fees
After Fee Waivers
 

Ultra Short Duration Bond Fund

   

0.10

%

   

0.10

%

 

Short-Duration Government Fund

   

0.10

%

   

0.10

%

 

GNMA Fund

   

0.10

%

   

0.10

%

 

A discussion regarding the basis for the Board's approval of the Funds' investment advisory and sub-advisory agreements is available on the Funds' website, www.seic.com/fundprospectuses, or online at sec.gov. The Funds' Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Funds' Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of each Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Funds.

The Funds are managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Funds and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of a Fund among the Sub-Advisers (to the extent a Fund has more than one Sub-Adviser);

— monitoring and evaluating each Sub-Adviser's performance;

— overseeing the Sub-Advisers to ensure compliance with the Funds' investment objectives, policies and restrictions; and

— monitoring each Sub-Adviser's adherence to its investment style.

SIMC acts as manager of managers for the Funds pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the Funds without submitting the sub-advisory agreements to a vote of the applicable Funds' shareholders. Among other things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to each Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Funds. The Board supervises SIMC and the Sub-Advisers and establishes policies that they must follow in their management activities.


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SEI / PROSPECTUS

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

The following portfolio managers are primarily responsible for the management and oversight of the Funds, as described above.

Richard A. Bamford serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.

SUB-ADVISERS

Each Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. Each Sub-Adviser must also operate within each Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. Each Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC, and Sub-Advisers may not consult with each other concerning transactions for a Fund. SIMC pays the Sub-Advisers out of the investment advisory fees it receives (as described below).


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SEI / PROSPECTUS

ULTRA SHORT DURATION BOND FUND:

MetLife Investment Management, LLC: MetLife Investment Management, LLC (MIM), located at One MetLife Way, Whippany, NJ 07981, serves as a Sub-Adviser to the Ultra Short Duration Bond Fund. A team of investment professionals manages the portion of the Ultra Short Duration Bond Fund's assets allocated to MIM. Scott Pavlak, CFA, Senior Portfolio Manager, joined MIM and its predecessor in 2008. Prior to joining MIM, Mr. Pavlak was a Senior Managing Director and Head of Fixed Income at Bear Stearns Asset Management. Mr. Pavlak earned a B.S. in Finance from Fairleigh Dickinson University and an M.B.A. in Finance and Economics from the Stern School of Business at New York University. Juan Peruyero, Senior Portfolio Manager, is a member of the short duration team. Prior to his current role, Mr. Peruyero was head of credit strategy, responsible for developing MIM's top-down strategy for corporate credit via evaluation of fundamentals and relative value across numerous asset classes globally. Mr. Peruyero has over 20 years of extensive experience across the credit spectrum including credit research, bank loans, high yield bonds, investment grade, emerging markets, bridge loans and hedge funds. Prior to becoming the global credit strategist, Mr. Peruyero was a co-portfolio manager on an internal long/short credit opportunity fund for approximately three years. Mr. Peruyero received his Bachelor of Science in accounting from The College of New Jersey and his MBA in finance from New York University Stern School of Business. Mr. Peruyero also is a Certified Public Accountant.

Wellington Management Company LLP: Wellington Management Company LLP (Wellington Management), a Delaware limited liability partnership with principal offices located at 280 Congress Street, Boston, Massachusetts 02210, serves as a Sub-Adviser to the Ultra Short Duration Bond Fund. Marc Piccuirro, Senior Managing Director and Fixed Income Portfolio Manager of Wellington Management, manages the portion of the Ultra Short Duration Bond Fund's assets allocated to Wellington Management. Mr. Piccuirro has served as the Portfolio Manager for the Ultra Short Duration Bond Fund since 2023. Mr. Piccuirro joined Wellington Management as an investment professional in 2007.

SHORT-DURATION GOVERNMENT FUND AND GNMA FUND:

Wellington Management Company LLP: Wellington Management Company LLP (Wellington Management), a Delaware limited liability partnership with principal offices located at 280 Congress Street, Boston, Massachusetts 02210, serves as a Sub-Adviser to the Short-Duration Government and GNMA Funds. Brian Conroy, CFA, Senior Managing Director and Fixed Income Portfolio Manager of Wellington Management, manages the portion of the Short-Duration Government and GNMA Funds' assets allocated to Wellington Management. Mr. Conroy has served as the Portfolio Manager for the Short-Duration Government and GNMA Funds since 2018. Mr. Conroy joined Wellington Management as an investment professional in 2012.

The Funds' Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Fee Waivers

Actual total annual Fund operating expenses of the Class F shares of certain of the Funds for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses tables in the Fund Summary sections because, among other reasons, the Funds' adviser, the Funds' administrator and/or the Funds' distributor voluntarily waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation- or tax-related services and extraordinary expenses not incurred in the ordinary course of the Funds' business) at a specified level. The Funds' adviser, the Funds'


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administrator and/or the Funds' distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these fee waivers, the actual total annual Fund operating expenses of the Class F shares of the Funds for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Class F Shares

  Total Annual Fund
Operating Expenses
(before voluntary fee waivers)
  Total Annual Fund
Operating Expenses
(after voluntary fee waivers and
extraordinary expenses, if applicable)
 

Ultra Short Duration Bond Fund

   

0.62

%

   

0.38

%

 

Short-Duration Government Fund

   

0.57

%

   

0.48

%

 

GNMA Fund

   

0.71

%

   

0.62

%

 

PURCHASING, EXCHANGING AND SELLING FUND SHARES

The following sections tell you how to purchase, exchange and sell (sometimes called "redeem") Class F shares of the Funds. The Funds offer Class F shares only to financial institutions and intermediaries for their own or their customers' accounts.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.

HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. Authorized financial institutions and intermediaries may purchase Class F shares by placing orders with the Transfer Agent or the Funds' authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Funds' wire agent by the close of business on the day after the order is placed. However, in certain circumstances, the Funds, at their discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Funds' procedures and applicable law. The Funds reserve the right to refuse any purchase requests, particularly those that the Funds reasonably believe may not be in the best interest of the Funds or their shareholders and could adversely affect the Funds or their operations. This includes those from any individual or group who, in a Fund's view, is likely to engage in excessive trading (usually defined as four or more "round trips" in a Fund in any twelve-month period). For more information regarding the Funds' policies and procedures related to excessive trading, please see "Frequent Purchases and Redemptions of Fund Shares" below.

You may be eligible to purchase other classes of shares of a Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.

Each Fund calculates its net asset value (NAV) per share once each Business Day as of the close of normal trading on the NYSE (normally, 4:00 p.m. Eastern Time). So, for you to receive the current Business Day's NAV per share, generally the Fund (or an authorized agent) must receive your purchase order in proper form before 4:00 p.m. Eastern Time. A Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase, exchange or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase, exchange or sale requests to these authorized financial institutions at an


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SEI / PROSPECTUS

earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Funds.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase, exchange and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Funds in accordance with the Funds' procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Funds. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.

Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, the Fund generally values its investment portfolio at market price. You may obtain the current NAV of the Fund by calling 1-800-DIAL-SEI.

If a market quotation is readily available for the valuation of Fund investments, then it is valued by the Funds' administrator at current market value in accordance with the Funds' Pricing and Valuation Procedures. The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Funds pursuant to Rule 2a-5 under the 1940 Act (the "Rule"). The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable. SIMC, in furtherance of the Board's designation, has appointed a committee of SIMC persons to function as the Valuation Designee (the "Committee") and has established a Valuation and Pricing Policy to implement the Rule and the Funds' Valuation and Pricing Policy (together with SIMC's Valuation and Pricing Policy, the "Fair Value Procedures").

As discussed in detail below, the Committee will typically first seek to fair value investments with valuations received from an independent, third-party pricing agent (a "Pricing Service"). If such valuations are not available or are unreliable, the Committee will seek to obtain a bid price from at least one independent broker or dealer. If a broker or dealer quote is unavailable, the Committee will convene, subject to the Fair Value Procedures, to establish a fair value for the fair value investments.

When valuing portfolio securities, securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (other than securities traded on National Association of Securities Dealers Automated Quotations (NASDAQ) or as otherwise noted below), including securities traded over the counter, are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which the securities are traded or, if there is no such reported sale, at the most recent quoted bid price. Securities traded on NASDAQ are valued at the NASDAQ Official Closing Price.

Redeemable securities issued by open-end investment companies are valued at the investment company's applicable NAV per share, with the exception of ETFs, which are priced as equity securities. These open-end investment company shares are offered in separate prospectuses, each of which describes the process by which the applicable investment company's NAV is determined. The prices of foreign securities are reported in local currency and converted to U.S. dollars using currency exchange rates.


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SEI / PROSPECTUS

Options are valued at the last quoted sales price. If there is no such reported sale on the valuation date, then long positions are valued at the most recent bid price, and short positions are valued at the most recent ask price as provided by a Pricing Service.

Futures and swaps cleared through a central clearing house (centrally cleared swaps) are valued at the settlement price established each day by the board of exchange on which they are traded. The daily settlement prices for financial futures and centrally cleared swaps are provided by a Pricing Service. On days when there is excessive volume, market volatility or the future or centrally cleared swap does not end trading by the time the fund calculates its NAV, the settlement price may not be available at the time at which a fund calculates its NAV. On such days, the best available price (which is typically the last sales price) may be used to value a Fund's futures or centrally cleared swaps position.

If a security's price cannot be obtained, as noted above, or in the case of equity tranches of CLOs or CDOs, the securities will be valued using a bid price from at least one independent broker. If such prices are not readily available, are determined to be unreliable or cannot be valued using the methodologies described above, the Committee will fair value the security using the Fair Value Procedures, as described below.

If available, debt securities, swaps (which are not centrally cleared), bank loans or debt tranches of CLOs/CDOs, such as those held by the Funds, are priced based upon valuations provided by a Pricing Service. Such values generally reflect the last reported sales price if the security is actively traded. The Pricing Service may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

On the first day a new debt security purchase is recorded, if a price is not available from a Pricing Service or an independent broker, the security may be valued at its purchase price. Each day thereafter, the debt security will be valued according to the Fair Value Procedures until an independent source can be secured. Securities held by a Fund with remaining maturities of 60 days or less will be valued at their amortized cost. Should existing credit, liquidity or interest rate conditions in the relevant markets and issuer specific circumstances suggest that amortized cost does not approximate fair value, then the security will be valued by an independent broker quote or fair valued by the Committee.

Foreign currency forward contracts are valued at the current day's interpolated foreign exchange rate, as calculated using forward rates provided by a Pricing Service.

The Committee and Fund's administrator, as applicable, reasonably believe that prices provided by Pricing Services are reliable. However, there can be no assurance that such Pricing Service's prices will be reliable. The Committee, who is responsible for making fair value determinations with respect to the Funds' portfolio securities, will, with assistance from the applicable Sub-Adviser, continuously monitor the reliability of readily available market quotations obtained from any Pricing Service and shall promptly notify the Funds' administrator if the Committee reasonably believes that a Pricing Service is no longer a reliable source of readily available market quotations. The Funds' administrator, in turn, will notify the Committee if it reasonably believes that a Pricing Service is no longer a reliable source for readily available market quotations.

The Fair Value Procedures provide that any change in a primary Pricing Service or a pricing methodology for investments with readily available market quotations requires prior approval by the Board. However, when the change would not materially affect the valuation of a Fund's net assets or involve a material departure in pricing methodology from that of the Fund's existing Pricing Service or pricing methodology, ratification may


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SEI / PROSPECTUS

be obtained at the next regularly scheduled meeting of the Board. A change in a Pricing Service or a material change in a pricing methodology for investments with no readily available market quotations will be reported to the Board by the Committee in accordance with certain requirements.

Securities for which market prices are not "readily available" are valued in accordance with Rule 2a-5 and the Fair Value Procedures.

The Committee must monitor for circumstances that may necessitate that a security be valued using Fair Value Procedures, which can include: (i) the security's trading has been halted or suspended, (ii) the security has been de-listed from a national exchange, (iii) the security's primary trading market is temporarily closed at a time when under normal conditions it would be open, (iv) the security has not been traded for an extended period of time, (v) the security's primary pricing source is not able or willing to provide a price, (vi) trading of the security is subject to local government-imposed restrictions, or (vii) a significant event (as defined below). When a security is valued in accordance with the Fair Value Procedures, the Committee will determine the value after taking into consideration relevant information reasonably available to the Committee. Examples of factors the Committee may consider include: (i) the type of security or asset, (ii) the last trade price, (iii) evaluation of the forces that influence the market in which the security is purchased and sold, (iv) the liquidity of the security, (v) the size of the holding in a Fund or (vi) any other appropriate information.

The Committee is responsible for selecting and applying, in a consistent manner, the appropriate methodologies for determining and calculating the fair value of holdings of the Funds, including specifying the key inputs and assumptions specific to each asset class or holding.

The determination of a security's fair value price often involves the consideration of a number of subjective factors and is therefore subject to the unavoidable risk that the value assigned to a security may be higher or lower than the security's value would be if a reliable market quotation for the security was readily available.

With respect to any investments in foreign securities, the Funds use a third-party fair valuation vendor, which provides a fair value for such foreign securities based on certain factors and methodologies (generally involving tracking valuation correlations between the U.S. market and each foreign security). Values from the vendor are applied in the event that there is a movement in the U.S. market that exceeds a specific threshold that has been established by the Committee. The Committee has also established a "confidence interval," which is used to determine the level of historical correlation between the value of a specific foreign security and movements in the U.S. market before a particular security will be fair-valued when the threshold is exceeded. In the event that the threshold established by the Committee is exceeded on a specific day, the Funds shall value the foreign securities in their portfolios that exceed the applicable "confidence interval" based upon the adjusted prices provided by the vendor. Additionally, if a local market in which the Funds own securities is closed for one or more days (scheduled or unscheduled) while a Fund is open, and if such securities in a Fund's portfolio exceed the predetermined confidence interval discussed above, then such Fund shall value such securities based on the fair value prices provided by the vendor.

For securities that principally trade on a foreign market or exchange, a significant gap in time can exist between the time of a particular security's last trade and the time at which a Fund calculates its NAV. The readily available market quotations of such securities may no longer reflect their market value at the time a Fund calculates NAV if an event that could materially affect the value of those securities (a Significant Event) has occurred between the time of the security's last close and the time that the Fund calculates NAV thereby rendering the readily available market quotations as unreliable. A Fund may invest in securities that are primarily listed on foreign exchanges that trade on weekends or other days when the Fund does not price its


33


SEI / PROSPECTUS

shares. As a result, the NAV of a Fund's shares may change on days when shareholders will not be able to purchase or redeem Fund shares. A Significant Event may relate to a single issuer or to an entire market sector.

The Committee is primarily responsible for the obligation to monitor for Significant Events as part of the Committee's ongoing responsibility to determine whether a Fund investment is required to be fair valued (i.e., the investment does not have a reliable readily available market quotation). The Committee may consider input from a Fund's service providers, including the Fund's administrator or a Sub-Adviser, if applicable and as appropriate. If the Committee becomes aware of a Significant Event that has occurred with respect to a security or group of securities after the closing of the exchange or market on which the security or securities principally trade, but before the time at which a Fund calculates net asset value, the Committee shall notify the Fund's administrator.

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of a Fund's shares, often with the intent of earning arbitrage profits. Market timing of a Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing a Fund to incur unwanted taxable gains and forcing a Fund to hold excess levels of cash.

The Funds are intended to be long-term investment vehicles and are not designed for investors that engage in short-term trading activity (i.e., a purchase of Fund shares followed shortly thereafter by a redemption of such shares, or vice versa, in an effort to take advantage of short-term market movements). Accordingly, the Board has adopted policies and procedures on behalf of the Funds to deter short-term trading. The Transfer Agent will monitor trades in an effort to detect short-term trading activities. If, as a result of this monitoring, a Fund determines, in its sole discretion, that a shareholder has engaged in excessive short-term trading, it will refuse to process future purchases or exchanges into the Fund from that shareholder's account.

A shareholder will be considered to be engaging in excessive short-term trading in a Fund in the following circumstances:

i.  if the shareholder conducts four (4) or more "round trips" in a Fund in any twelve-month period. A round trip involves the purchase of shares of a Fund and the subsequent redemption of all or most of those shares. An exchange into and back out of a Fund in this manner is also considered a round trip.

ii.  if a Fund determines, in its sole discretion, that a shareholder's trading activity constitutes excessive short-term trading, regardless of whether such shareholder exceeds the foregoing round trip threshold.

The Funds, in their sole discretion, also reserve the right to reject any purchase request (including exchange requests) for any reason without notice.

Judgments with respect to implementation of the Funds' policies are made uniformly and in good faith in a manner that the Funds believe is consistent with the best long-term interests of shareholders. When applying the Funds' policies, the Funds may consider (to the extent reasonably available) an investor's trading history in all SEI Funds, as well as trading in accounts under common ownership, influence or control, and any other information available to the Funds.

The Funds' monitoring techniques are intended to identify and deter short-term trading in the Funds. However, despite the existence of these monitoring techniques, it is possible that short-term trading may


34


SEI / PROSPECTUS

occur in the Funds without being identified. For example, certain investors seeking to engage in short-term trading may be adept at taking steps to hide their identity or activity from the Funds' monitoring techniques. Operational or technical limitations may also limit the Funds' ability to identify short-term trading activity.

The Funds and/or their service providers have entered into agreements with financial intermediaries that require them to provide the Funds and/or their service providers with certain shareholder transaction information to enable the Funds and/or their service providers to review the trading activity in the omnibus accounts maintained by financial intermediaries. The Funds may also delegate trade monitoring to the financial intermediaries. If excessive trading is identified in an omnibus account, the Funds will work with the financial intermediary to restrict trading by the shareholder and may request that the financial intermediary prohibit the shareholder from future purchases or exchanges into the Funds.

Certain of the Funds are sold to participant-directed employee benefit plans. The Funds' ability to monitor or restrict trading activity by individual participants in a plan may be constrained by regulatory restrictions or plan policies. In such circumstances, the Funds will take such action, which may include taking no action, as deemed appropriate in light of all the facts and circumstances.

The Funds may amend these policies and procedures in response to changing regulatory requirements or to enhance the effectiveness of the program.

Foreign Investors

The Funds do not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in a Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in a Fund. The Funds may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Funds are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.

The Funds will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Funds, however, reserve the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify


35


SEI / PROSPECTUS

your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Funds' overall obligation to deter money laundering under federal law. The Funds have adopted an Anti-Money Laundering Compliance Program designed to prevent the Funds from being used for money laundering or the financing of terrorist activities. In this regard, the Funds reserve the right to: (i) refuse, cancel or rescind any purchase or exchange order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of a Fund or in cases when a Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request of governmental or law enforcement authority, you may not receive proceeds of the redemption if a Fund is required to withhold such proceeds.

HOW TO EXCHANGE YOUR FUND SHARES

An authorized financial institution or intermediary may exchange Class F shares of any Fund for Class F shares of any other fund of SEI Daily Income Trust on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. This exchange privilege may be changed or canceled at any time upon 60 days' notice. For information about how to exchange Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. When you exchange shares, you are really selling your shares of one Fund and buying shares of another Fund. Therefore, your sale price and purchase price will be based on the next calculated NAV after the Funds receive your exchange request. All exchanges are based on the eligibility requirements of the Fund into which you are exchanging and any other limits on sales of or exchanges in that Fund. Each Fund reserves the right to refuse or limit any exchange order for any reason, including if the transaction is deemed not to be in the best interest of the Fund's other shareholders or possibly disruptive to the management of the Fund. When a purchase or exchange order is rejected, the Fund will send notice to the prospective investor or the prospective investor's authorized financial intermediary.

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing with the Transfer Agent or the Funds' authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Funds receive your request or after the Funds' authorized intermediary receives your request if transmitted to the Funds in accordance with the Funds' procedures and applicable law.

Receiving Your Money

Normally, the Funds will make payment on your redemption request on the Business Day following the day on which they receive your request regardless of the method the Funds use to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.


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SEI / PROSPECTUS

Methods Used to Meet Redemption Obligations

The Funds generally pay sale (redemption) proceeds in cash during normal market conditions. To the extent that a Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to generate such cash through the sale of portfolio assets. The Funds operate an interfund lending program that enables a Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help a Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Funds' remaining shareholders), the Funds might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

A Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Funds may suspend your right to sell your shares back to the Funds if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.

Large Redemptions

Large unexpected redemptions to a Fund can disrupt portfolio management and increase trading costs by causing the Fund to liquidate a substantial portion of its assets in a short period of time. Large redemptions may arise from the redemption activity of a single investor, or the activity of a single investment manager managing multiple underlying accounts. In the event of a large unexpected redemption, a Fund may take such steps as implementing a redemption in kind or delaying the delivery of redemption proceeds for up to seven days. Further, the Funds may reject future purchases from that investor or investment manager. An investor or investment manager with a large position in a Fund may reduce the likelihood of these actions if it works with the Fund to mitigate the impact of a large redemption by, for example, providing advance notice to the Fund of a large redemption or by implementing the redemption in stages over a period of time.

Telephone Transactions

Purchasing, exchanging and selling Fund shares over the telephone is extremely convenient, but not without risk. The Funds have certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Funds follow these procedures, the Funds will not be responsible for any losses or costs incurred by following telephone instructions that the Funds reasonably believe to be genuine.


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SEI / PROSPECTUS

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the shares of the Funds.

The Funds may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Funds. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Funds to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the Funds' SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

SERVICE OF FUND SHARES

The Funds have adopted a shareholder services plan and agreement (the Service Plan) with respect to Class F shares that allows such shares to pay service providers a fee in connection with the ongoing servicing of shareholder accounts owning such shares at an annual rate of up to 0.25% of average daily net assets of the Class F shares. The Service Plan provides that shareholder service fees on Class F shares will be paid to SIDCo., which may then be used by SIDCo. to compensate financial intermediaries for providing shareholder services with respect to Class F shares.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Funds can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in each Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.


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SEI / PROSPECTUS

Additional information regarding the information disclosed on the Portfolio Holdings Website and the Funds' policies and procedures on the disclosure of portfolio holdings information is available in the SAI.

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Funds distribute their investment income monthly. The Funds make distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about federal, state and local income taxes. Below, the Funds have summarized certain important tax issues that affect the Funds and their shareholders. This summary does not apply to shares held in an individual retirement account or other tax-qualified plans, which are not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future. This summary is based on current tax laws, which may change.

Each Fund has elected and intends to qualify each year for treatment as a regulated investment company (a RIC) within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). If it meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, a Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.

Each Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains. Once a year the Funds will send you a statement showing the types and total amount of distributions you received during the previous year.

Because the Funds' income is expected to be derived primarily from interest rather than dividends, no portion of a Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

A RIC that receives business interest income may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. A RIC's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the RIC's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. A RIC may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest


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SEI / PROSPECTUS

Dividend as interest income, you must have held your shares in a Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. Section 163(j) Interest Dividends, if so designated by a Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (IRS).

If you buy shares when a Fund has realized but not yet distributed income or capital gains, you will be "buying a dividend" by paying the full price for the shares and gains and receiving back a portion of the price in the form of a taxable distribution, even though, as an economic matter, the distribution simply constitutes a return of your investment. "Buying a dividend" should generally be avoided by taxable investors.

Each sale or exchange of shares of the Funds may be a taxable event. Assuming you hold shares of a Fund as a capital asset, a sale may result in a capital gain or loss to you. The capital gain or loss generally will be treated as short-term capital gain or loss if you held the shares for 12 months or less, long-term capital gain or loss if you held the shares for longer, except that any capital loss on the sale of a Fund's shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to such Fund shares. In certain circumstances, losses realized on the redemption or exchange of Fund shares may be disallowed. For tax purposes, an exchange of Fund shares for shares of a different fund is the same as a sale.

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale or exchange of Fund shares).

The Funds (or their administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, each Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, each Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, each Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of a Fund's shares may not be changed after the settlement date of each such sale of a Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

If a Fund invests in foreign securities, the Fund may be subject to foreign withholding taxes with respect to dividends or interest the Fund receives from sources in foreign countries.

The Funds' SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Funds' investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Funds. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any


40


SEI / PROSPECTUS

individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Funds that you should consider in determining whether to purchase shares of the Funds. The Funds may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Funds and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


41


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The tables that follow present performance information about the Class F shares of each Fund. This information is intended to help you understand each Fund's financial performance for the past five years, or, if shorter, the period of the Fund's operations. Some of this information reflects financial information for a single Fund share. The total returns in the tables represent the rate that you would have earned (or lost) on an investment in a Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from each Fund's financial statements, which have been audited by KPMG LLP, the Funds' independent registered public accounting firm. Its report, along with each Fund's financial statements, appears in the Funds' Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH YEAR

    Net Asset
Value,
Beginning
of Year
  Net
Investment
Income*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year
  Total
Return†
  Net Assets
End of Year
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
  Portfolio
Turnover
Rate
 

Ultra Short Duration Bond Fund

     

CLASS F

 
 

2025

   

$

9.28

   

$

0.44

   

$

0.05

   

$

0.49

   

$

(0.43

)

 

$

(0.43

)

 

$

9.34

     

5.36

%

 

$

139,006

     

0.39

%(1)

   

0.63

%

   

4.70

%

   

60

%

 
 

2024

     

9.16

     

0.37

     

0.12

     

0.49

     

(0.37

)

   

(0.37

)

   

9.28

     

5.50

     

175,252

     

0.38

     

0.63

     

4.05

     

75

   
 

2023

     

9.30

     

0.14

     

(0.13

)

   

0.01

     

(0.15

)

   

(0.15

)

   

9.16

     

0.09

     

218,987

     

0.38

     

0.62

     

1.49

     

52

   
 

2022

     

9.38

     

0.05

     

(0.07

)

   

(0.02

)

   

(0.06

)

   

(0.06

)

   

9.30

     

(0.23

)

   

285,651

     

0.38

     

0.61

     

0.53

     

70

   
 

2021

     

9.36

     

0.12

     

0.03

     

0.15

     

(0.13

)

   

(0.13

)

   

9.38

     

1.61

     

271,550

     

0.38

     

0.58

     

1.29

     

73

   

Short-Duration Government Fund

     

CLASS F

 
 

2025

   

$

9.97

   

$

0.37

   

$

0.10

   

$

0.47

   

$

(0.34

)

 

$

(0.34

)

 

$

10.10

     

4.77

%

 

$

585,518

     

0.48

%

   

0.58

%

   

3.73

%

   

99

%

 
 

2024

     

9.88

     

0.29

     

0.08

     

0.37

     

(0.28

)

   

(0.28

)

   

9.97

     

3.78

     

523,940

     

0.48

     

0.58

     

2.99

     

178

   
 

2023

     

10.29

     

0.11

     

(0.39

)

   

(0.28

)

   

(0.13

)

   

(0.13

)

   

9.88

     

(2.74

)

   

613,217

     

0.48

     

0.56

     

1.06

     

139

   
 

2022

     

10.56

     

0.03

     

(0.22

)

   

(0.19

)

   

(0.08

)

   

(0.08

)

   

10.29

     

(1.83

)

   

687,332

     

0.48

     

0.56

     

0.25

     

132

   
 

2021

     

10.38

     

0.09

     

0.22

     

0.31

     

(0.13

)

   

(0.13

)

   

10.56

     

3.01

     

745,950

     

0.48

     

0.57

     

0.88

     

287

   


42


SEI / PROSPECTUS

    Net Asset
Value,
Beginning
of Year
  Net
Investment
Income*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year
  Total
Return†
  Net Assets
End of Year
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
  Portfolio
Turnover
Rate
 

GNMA Fund

     

CLASS F

 
 

2025

   

$

8.98

   

$

0.28

   

$

(0.11

)

 

$

0.17

   

$

(0.28

)

 

$

(0.28

)

 

$

8.87

     

1.96

%

 

$

14,442

     

0.64

%(2)

   

0.73

%

   

3.10

%

   

246

%

 
 

2024

     

9.10

     

0.24

     

(0.11

)

   

0.13

     

(0.25

)

   

(0.25

)

   

8.98

     

1.51

     

43,865

     

0.63

     

0.65

     

2.76

     

145

   
 

2023

     

10.05

     

0.18

     

(0.91

)

   

(0.73

)

   

(0.22

)

   

(0.22

)

   

9.10

     

(7.23

)

   

47,503

     

0.63

     

0.64

     

1.92

     

235

   
 

2022

     

10.55

     

0.05

     

(0.36

)

   

(0.31

)

   

(0.19

)

   

(0.19

)

   

10.05

     

(2.97

)

   

71,216

     

0.62

     

0.62

     

0.46

     

405

   
 

2021

     

10.44

     

0.11

     

0.22

     

0.33

     

(0.22

)

   

(0.22

)

   

10.55

     

3.16

     

104,074

     

0.58

     

0.58

     

1.05

     

392

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

(1) The expense ratio includes a proxy fee expense. Had this expense been excluded the ratio would have been 0.38%.

(2) The expense ratio includes a proxy fee expense. Had this expense been excluded the ratio would have been 0.62%.

Amounts designated as "—" are zero or have been rounded to zero.


43


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Funds is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Funds' investments is available in the Funds' annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Funds' annual report, you will find a discussion of the market conditions and investment strategies that significantly affected each Funds' annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, Fund Financial Statements, or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail: Write to the Funds at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

SEI-F-094 (5/25)

seic.com


May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Class Y Shares

•  Ultra Short Duration Bond Fund (SECYX)

•  Short-Duration Government Fund (SDGFX)

•  GNMA Fund (SGMYX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Not all Funds appearing in this prospectus are available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

     

ULTRA SHORT DURATION BOND FUND

   

1

   

SHORT-DURATION GOVERNMENT FUND

   

7

   

GNMA FUND

   

13

   

Purchase and Sale of Fund Shares

   

19

   

Tax Information

   

19

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

19

   

MORE INFORMATION ABOUT INVESTMENTS

   

19

   

MORE INFORMATION ABOUT RISKS

   

20

   

Risk Information Common to the Funds

   

20

   

More Information About Principal Risks

   

20

   

GLOBAL ASSET ALLOCATION

   

28

   
MORE INFORMATION ABOUT THE FUNDS'
BENCHMARK INDEXES
   

28

   

INVESTMENT ADVISER

   

28

   

SUB-ADVISERS

   

30

   

Information About Fee Waivers

   

31

   
PURCHASING, EXCHANGING AND SELLING
FUND SHARES
   

32

   

HOW TO PURCHASE FUND SHARES

   

33

   

Pricing of Fund Shares

   

34

   
Frequent Purchases and Redemptions of
Fund Shares
   

37

   

Foreign Investors

   

38

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

38

   

HOW TO EXCHANGE YOUR FUND SHARES

   

39

   

HOW TO SELL YOUR FUND SHARES

   

39

   

Receiving Your Money

   

39

   

Methods Used to Meet Redemption Obligations

   

39

   

Low Balance Redemptions

   

40

   

Suspension of Your Right to Sell Your Shares

   

40

   

Large Redemptions

   

40

   

Telephone Transactions

   

40

   

Unclaimed Property

   

40

   

DISTRIBUTION OF FUND SHARES

   

41

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

41

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

   

41

   

Dividends and Distributions

   

41

   

Taxes

   

41

   

ADDITIONAL INFORMATION

   

43

   

FINANCIAL HIGHLIGHTS

   

44

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
 

Back Cover

 

SEI / PROSPECTUS

ULTRA SHORT DURATION BOND FUND

Fund Summary

Investment Goal

Provide higher current income than that typically offered by a money market fund while maintaining a high degree of liquidity and a correspondingly higher risk of principal volatility.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class Y Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.27

%

 

Total Annual Fund Operating Expenses

   

0.37

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Ultra Short Duration Bond Fund — Class Y Shares

 

$

38

   

$

119

   

$

208

   

$

468

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 60% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Ultra Short Duration Bond Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in investment grade U.S. dollar-denominated debt instruments, including: (i) commercial paper and other corporate obligations; (ii) certificates of deposit, time deposits, bankers' acceptances, bank notes, and other obligations of U.S. savings and loan and thrift


1


SEI / PROSPECTUS

institutions, U.S. commercial banks (including foreign branches of such banks) and foreign banks that meet certain asset requirements; (iii) U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. Government; (iv) mortgage-backed securities; (v) asset-backed securities; (vi) fully-collateralized repurchase agreements involving any of the foregoing obligations; and (vii) U.S. dollar-denominated instruments of foreign issuers. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund.

Using a top-down strategy and bottom-up security selection, the sub-advisers (each, a Sub-Adviser and collectively, the Sub-Advisers) seek attractively-valued securities that offer competitive yields and that are issued by issuers that are on a sound financial footing. The Sub-Advisers also consider factors such as the anticipated level of interest rates, relative valuations and yield spreads among various sectors, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five-year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%. While the Fund may invest in securities with any maturity or duration, the Sub-Advisers will strive to maintain a portfolio duration for the Fund of 18 months or less under normal market conditions.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Investment Style Risk — The risk that short-duration fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments


2


SEI / PROSPECTUS

held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as to perceptions of the creditworthiness and business prospects of individual issuers.

Commercial Paper Risk — Commercial paper is a short-term obligation with a maturity generally ranging from one to 270 days and is issued by U.S. or foreign companies or other entities in order to finance their current operations. Such investments are unsecured and usually discounted from their value at maturity. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities and will tend to fall when interest rates rise and rise when interest rates fall. Asset-backed commercial paper may be issued by structured investment vehicles or other conduits that are organized to issue the commercial paper and to purchase trade receivables or other financial assets. The repayment of asset-backed commercial paper depends primarily on the cash collections received from such an issuer's underlying asset portfolio and the issuer's ability to issue new asset-backed commercial paper.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Asset-Backed Securities Risk — Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities. Securitization trusts generally do not have any assets or sources of funds other than the receivables and related property they own, and asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity. Asset-backed securities may be more illiquid than more conventional types of fixed income securities that the Fund may acquire.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Foreign Issuer Risk — The risk that issuers in foreign countries face political and economic events unique to such countries. These events will not necessarily affect the U.S. economy or similar issuers located in the U.S.

Currency Risk — As a result of the Fund's investments in securities or other investments denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors


3


SEI / PROSPECTUS

such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also


4


SEI / PROSPECTUS

cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Class Y shares of the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years.

The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 2.75% (06/30/20)
Worst Quarter: -1.61% (03/31/20)
The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.21%.
The Fund's Class Y shares commenced operations on August 31, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Class F shares is shown. The Fund's Class F shares are offered in a separate prospectus. Because Class Y shares are invested in the same portfolio of securities, returns for Class Y shares would have been substantially similar to those of Class F shares, shown here, and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.
 

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.


5


SEI / PROSPECTUS

Ultra Short Duration Bond Fund*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(9/28/1993)
 

Fund Return Before Taxes

   

5.57

%

   

2.50

%

   

2.13

%

   

2.96

%

 

Fund Return After Taxes on Distributions

   

3.58

%

   

1.47

%

   

1.25

%

   

1.72

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

3.27

%

   

1.47

%

   

1.25

%

   

1.76

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no
deductions for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

4.26

%

 
Bloomberg Short U.S. Treasury 9-12 Month Index Return (reflects no
deduction for fees, expenses or taxes)
   

5.05

%

   

2.24

%

   

1.76

%

   

2.84

%

 

* The Fund's Class Y shares commenced operations on August 31, 2015. For periods prior to August 31, 2015, the performance of the Fund's Class F shares has been used. Returns for Class Y shares would have been substantially similar to those of Class F shares and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Advisers and Portfolio Managers.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 

MetLife Investment Management, LLC

  Scott Pavlak, CFA
Juan Peruyero
  Since 2012
Since 2020
  Senior Portfolio Manager
Senior Portfolio Manager
 

Wellington Management Company LLP

 

Marc Piccuirro

 

Since 2023

  Senior Managing Director and Fixed Income
Portfolio Manager
 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 19 of this prospectus.


6


SEI / PROSPECTUS

SHORT-DURATION GOVERNMENT FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class Y Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.22

%

 

Total Annual Fund Operating Expenses

   

0.32

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Short-Duration Government Fund — Class Y Shares

 

$

33

   

$

103

   

$

180

   

$

406

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 99% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Short-Duration Government Fund invests substantially all of its net assets in U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. Government, including mortgage-backed securities, and repurchase agreements collateralized by such obligations. The Fund may invest in securities issued by various entities sponsored by the U.S. Government, such as the Federal National Mortgage Association and the Federal Home Loan


7


SEI / PROSPECTUS

Mortgage Corporation. These issuers are chartered or sponsored by acts of Congress; however, their securities are neither issued nor guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. Government. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund. Due to its investment strategy, the Fund may buy and sell securities and other instruments frequently.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%. While the Fund may invest in securities with any maturity or duration, the Sub-Adviser will strive to maintain a portfolio duration of up to three years under normal market conditions.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Investment Style Risk — The risk that short-duration U.S. Government fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.


8


SEI / PROSPECTUS

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.


9


SEI / PROSPECTUS

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and taxes subject to ordinary income tax rates as opposed to more favorable capital gains rates, which may affect the Fund's performance.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Class Y shares of the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years.

The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.


10


SEI / PROSPECTUS

  Best Quarter: 3.02% (09/30/24)
Worst Quarter: -2.51% (03/31/22)
The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.65%.





 

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Short-Duration Government Fund*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(2/17/1987)
 

Fund Return Before Taxes

   

4.94

%

   

1.53

%

   

1.41

%

   

3.90

%

 

Fund Return After Taxes on Distributions

   

3.44

%

   

0.70

%

   

0.66

%

   

2.48

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

2.90

%

   

0.81

%

   

0.75

%

   

2.48

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no
deductions for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

5.21

%**

 
ICE BofA 1-3 Year U.S. Treasury Index Return (reflects no deduction
for fees, expenses or taxes)
   

4.08

%

   

1.40

%

   

1.40

%

   

3.98

%

 

* The Fund's Class Y shares commenced operations on December 31, 2014. For periods prior to December 31, 2014, the performance of the Fund's Class F shares has been used. Returns for Class Y shares would have been substantially similar to those of Class F shares and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.

** Benchmark returns since inception do not include the return for the partial month following inception date of the Fund (2/17/1987 — 2/28/1987). Annualization calculation of the inception to date returns is based on the actual inception date (2/17/1987).


11


SEI / PROSPECTUS

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser and Portfolio Manager.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 
Wellington Management
Company LLP
 

Brian Conroy, CFA

 

Since 2012

  Senior Managing Director and Fixed Income
Portfolio Manager
 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 19 of this prospectus.


12


SEI / PROSPECTUS

GNMA FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class Y Shares

 

Management Fees

   

0.10

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.36

%

 

Total Annual Fund Operating Expenses

   

0.46

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

GNMA Fund — Class Y Shares

 

$

47

   

$

148

   

$

258

   

$

579

   

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 246% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the GNMA Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in mortgage-backed securities issued by the Government National Mortgage Association (GNMA). The Fund may also invest in U.S. Treasury securities and U.S. Government securities obligations, and repurchase agreements collateralized by such obligations. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and invest in to-be-announced


13


SEI / PROSPECTUS

mortgage-backed securities, futures contracts and forward contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There may also be times when the Fund utilizes futures contracts to take an active position on interest rates to either increase or reduce the interest rate sensitivity of the Fund. Due to its investment strategy, the Fund may buy and sell securities and other instruments frequently.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of the Fund's entire portfolio. Duration measures the price sensitivity of a fixed income security to changes in interest rates. For example, a five year duration means that the fixed income security will decrease in value by 5% if interest rates rise 1% and increase in value by 5% if interest rates fall 1%.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Investment Style Risk — The risk that GNMA securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments


14


SEI / PROSPECTUS

held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancings and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

Dollar Rolls Risk — The Fund's investments in dollar rolls may subject the Fund to leverage risk and liquidity risk, both of which are described below.

When-Issued and Delayed Delivery Securities Risk — When-issued and delayed delivery securities involve the risk that the security the Fund buys will lose value prior to its delivery.

Derivatives Risk — The Fund's use of futures contracts and forward contracts is subject to market risk, liquidity risk, correlation risk and leverage risk. Market risk is described above and liquidity risk and leverage risk are described below. Many over-the-counter derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative instrument may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of these risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.


15


SEI / PROSPECTUS

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Leverage Risk — The Fund's use of derivatives or investments in repurchase agreements may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

Prepayment Risk — The risk that, in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and taxes subject to ordinary income tax rates as opposed to more favorable capital gains rates, which may affect the Fund's performance.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Class Y shares of the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception, compared with those of a broad measure of market performance. The performance information shown is based on full calendar years. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.


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  Best Quarter: 6.71% (12/31/23)
Worst Quarter: -5.04% (09/30/22)
The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 2.82%.
The Fund's Class Y shares commenced operations on October 30, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Class F shares is shown. The Fund's Class F shares are offered in a separate prospectus. Because Class Y shares are invested in the same portfolio of securities, returns for Class Y shares would have been substantially similar to those of Class F shares, shown here, and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.
 

Average Annual Total Returns (for the periods ended December 31, 2024)

This table compares the Fund's average annual total returns to those of an appropriate broad-based index and an additional index with characteristics relevant to the Fund's investment strategy.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases, the Fund's return after taxes may exceed the Fund's return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

GNMA Fund*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(3/20/1987)
 

Fund Return Before Taxes

   

1.38

%

   

-0.54

%

   

0.88

%

   

4.88

%

 

Fund Return After Taxes on Distributions

   

-0.01

%

   

-1.63

%

   

-0.30

%

   

2.96

%

 

Fund Return After Taxes on Distributions and Sale of Fund Shares

   

0.81

%

   

-0.85

%

   

0.17

%

   

3.04

%

 
Bloomberg U.S. Aggregate Bond Index (TR) (USD) (reflects no
deduction for fees, expenses or taxes)
   

1.25

%

   

-0.33

%

   

1.35

%

   

5.23

%**

 
Bloomberg GNMA Index Return (reflects no deduction
for fees, expenses or taxes)
   

0.96

%

   

-0.60

%

   

0.85

%

   

5.13

%

 

* The Fund's Class Y shares commenced operations on October 30, 2015. For periods prior to October 30, 2015, the performance of the Fund's Class F shares has been used. Returns for the Class Y shares would have been substantially similar to those of Class F shares and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.

** Benchmark returns since inception do not include the return for the partial month following inception date of the Fund (3/20/1987 — 3/31/1987). Annualization calculation of the inception to date returns is based on the actual inception date (3/20/1987).


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SEI / PROSPECTUS

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser and Portfolio Manager.

Sub-Adviser

 

Portfolio Manager

  Experience with
the Fund
 

Title with Sub-Adviser

 
Wellington Management
Company LLP
 

Brian Conroy, CFA

 

Since 2012

  Senior Managing Director and Fixed Income
Portfolio Manager
 

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 19 of this prospectus.


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SEI / PROSPECTUS

Purchase and Sale of Fund Shares

The minimum initial investment for Class Y shares is $100,000 with minimum subsequent investments of $1,000. Such minimums may be waived at the discretion of SIMC. Notwithstanding the foregoing, a higher minimum investment amount may be required for certain types of investors to be eligible to invest in Class Y shares, as set forth in "Purchasing, Exchanging and Selling Fund Shares" on page 32. You may purchase and redeem shares of a Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Funds' transfer agent (the Transfer Agent) or the Funds' authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Funds are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), a Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

Each Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

Each Fund has its own investment goal and strategies for reaching that goal. Each Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers who manage portions of each Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Funds and attempts to ensure that the Sub-Advisers comply with the Funds' investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Funds' Board of Trustees (Board).

The investments and strategies described in this prospectus are those that the Sub-Advisers use under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, each Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Funds will do so only if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income. Of course, there is no guarantee that any Fund will achieve its investment goal. Although not


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SEI / PROSPECTUS

expected to be a component of the Funds' principal investment strategies, each Fund may lend its securities to certain financial institutions in an attempt to earn additional income.

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Funds

Investing in the Funds involves risk, and there is no guarantee that a Fund will achieve its investment goal. SIMC and the Sub-Advisers, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in a Fund, just as you could with other investments. An investment in a Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

The value of your investment in a Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities a Fund owns and the markets in which those securities trade. The effect on a Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Funds:

Asset-Backed Securities — The Ultra Short Duration Bond Fund may invest in asset-backed securities. Asset-backed securities are securities that are backed primarily by the cash flows of a discrete pool of fixed or revolving receivables or other financial assets that by their terms convert into cash within a finite time period. Asset-backed securities include mortgage-backed securities, but the term is more commonly used to refer to securities supported by non-mortgage assets such as auto loans, motor vehicle leases, student loans, credit card receivables, floorplan receivables, equipment leases and peer-to-peer loans. The assets are removed from any potential bankruptcy estate of an operating company through the true sale of the assets to an issuer that is a special purpose entity, and the issuer obtains a perfected security interest in the assets. Payments of principal of and interest on asset-backed securities rely entirely on the performance of the underlying assets. Asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity and therefore, if the assets or sources of funds available to the issuer are insufficient to pay those securities, the Fund will incur losses. In addition, asset-backed securities entail prepayment risk that may vary depending on the type of asset, but is generally less than the prepayment risk associated with mortgage-backed securities.

Losses may be greater for asset-backed securities that are issued as "pass-through certificates" rather than as debt securities because those types of certificates only represent a beneficial ownership interest in the related assets and their payment is based primarily on collections actually received. For asset-backed securities as a whole, if a securitization issuer defaults on its payment obligations due to losses or shortfalls on the assets held by the issuer, a sale or liquidation of the assets may not be sufficient to support payments on the securities and the Fund, as a securityholder, may suffer a loss.

There is a limited secondary market for asset-backed securities. Consequently, it may be difficult for the Fund to sell or realize profits on those securities at favorable times or for favorable prices.


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SEI / PROSPECTUS

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Corporate Fixed Income Securities — Corporate fixed income securities are fixed income securities issued by public and private businesses. Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers. Corporate fixed income securities are subject to the risk that the issuer may not be able to pay interest or, ultimately, to repay principal upon maturity. Interruptions or delays of these payments could adversely affect the market value of the security. In addition, due to lack of uniformly available information about issuers or differences in the issuers' sensitivity to changing economic conditions, it may be difficult to measure the credit risk of securities issued by private businesses.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Funds to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Funds invest primarily in investment grade securities, the Funds could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or otherwise honor its obligations.

Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Funds in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Funds' investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Funds' assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Funds. These events, and any other future events, may adversely affect the prices and liquidity of the Funds' investments and could result in disruptions in the trading markets.


21


SEI / PROSPECTUS

Derivatives — Derivatives are instruments that derive their value from an underlying security, financial asset or an index. Examples of derivative instruments include futures contracts and forward contracts. Changes in the market value of a security that is a reference asset for a derivative instrument may not be proportionate to changes in the market value of the derivative instrument itself. There may not be a liquid market for the Funds to sell a derivative instrument, which could result in difficulty in closing the position prior to expiration. Moreover, certain derivative instruments can magnify the extent of losses incurred due to changes in the market value of the securities to which they relate. Some derivative instruments are subject to counterparty risk. A default by the counterparty on its payments to the Funds will cause the value of your investment in the Funds to decrease. The Funds' use of derivatives is also subject to credit risk, leverage risk, lack of availability risk, valuation risk, correlation risk, counterparty risk and tax risk. Credit risk is described above and leverage risk is described below. A Fund's counterparties to its derivative contracts present the same types of credit risk as issuers of fixed income securities. Lack of availability risk is the risk that suitable derivative transactions, such as roll-forward contracts, may not be available in all circumstances for risk management or other purposes. Valuation risk is the risk that a particular derivative may be valued incorrectly. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. Counterparty risk is the risk that the counterparty to a derivatives contract, a clearing member used by the Fund to hold a cleared derivative contract, or a borrower of the Fund's securities is unable or unwilling to make timely settlement payments, return the Fund's margin or otherwise honor its obligations. Tax risk is the risk that the use of derivatives may cause the Funds to realize higher amounts of short-term capital gains or otherwise affect a Fund's ability to pay out dividends subject to preferential rates or the dividends received deduction, thereby increasing the amount of taxes payable by some shareholders. These risks could cause the Funds to lose more than the principal amount invested. Some derivatives have the potential for unlimited loss, regardless of the size of the Funds' initial investment.

Derivatives are also subject to a number of other risks described elsewhere in this prospectus. Derivatives transactions conducted outside the U.S. may not be conducted in the same manner as those entered into on U.S. exchanges, and may be subject to different margin, exercise, settlement or expiration procedures. Derivatives transactions conducted outside the U.S. also are subject to the risks affecting foreign securities, currencies and other instruments, in addition to other risks.

Dollar Rolls — The Funds, particularly the GNMA Fund, may enter into dollar rolls, subject to the Funds' limitations on borrowing. Dollar rolls are transactions in which a Fund sells mortgage-related securities, such as a security issued by GNMA, for delivery in the current month and simultaneously contracts to repurchase substantially similar securities on a specified future date at a pre-determined price. The dealer with which the Fund enters into a dollar-roll transaction is not obligated to return the same securities as those originally sold by the Fund, but only securities that are substantially identical. If the broker-dealer to whom a Fund sells the security becomes insolvent, the Fund's right to repurchase the security may be restricted. Dollar roll transactions may give rise to leverage risk. A Fund's obligations under a dollar roll agreement must be covered by segregated or "earmarked" liquid assets equal in value to the securities subject to repurchase by the Fund. To the extent that positions in dollar roll agreements are not covered by segregated or "earmarked" liquid assets, such transactions would be subject to a Fund's restrictions on borrowings. Furthermore, because dollar roll transactions may be for terms ranging between one and six months, dollar roll transactions may be deemed "illiquid" and subject to a Fund's overall limitations on investments in illiquid securities. Other risks involved in entering into dollar rolls include the risk that the value of the security may change adversely over the term of the dollar roll and that the security a Fund is required to repurchase may be worth less than the security that the Fund originally held. Leverage risk and liquidity risk are discussed in greater detail below.


22


SEI / PROSPECTUS

Duration — Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security's price to changes in interest rates. For example, if a fixed income security has a five-year duration, it will decrease in value by approximately 5% if interest rates rise 1% and increase in value by approximately 5% if interest rates fall 1%. Fixed income instruments with longer duration typically have higher risk and higher volatility. Longer-term fixed-income securities in which a portfolio may invest are more volatile than shorter-term fixed-income securities. A portfolio with a longer average portfolio duration is typically more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Extension — The Funds' investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Funds may exhibit additional volatility.

Fixed Income Market — The prices of a Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Fund. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. In the case of foreign securities, price fluctuations will reflect international economic and political events, as well as changes in currency valuations relative to the U.S. dollar. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, a Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Foreign Issuers — The Ultra Short Duration Bond Fund may invest in foreign issuers. Investing in issuers located in foreign countries poses distinct risks because political and economic events unique to those countries or regions will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of the Fund's investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer's home country.

Additionally, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may result in a Fund having to sell such prohibited securities at inopportune times. Such prohibited securities may have less liquidity as a result of such U.S. Government designation and the market price of such prohibited securities may decline, which may cause the Fund to incur losses. In addition, the large-scale invasion of Ukraine by Russia in February 2022 and the resulting responses, including economic sanctions by


23


SEI / PROSPECTUS

the U.S. and other countries against certain individuals and companies could negatively impact the Funds' performance and cause losses on your investment in the Funds.

Forward Contracts — A forward contract, or a "forward," involves a negotiated obligation to purchase or sell a specific security or currency at a future date (with or without delivery required), which may be any fixed number of days from the date of the contract agreed upon by the parties, at a price set at the time of the contract. Forward contracts are not traded on exchanges; rather, a bank or dealer will act as agent or as principal in order to make or take future delivery of a specified lot of a particular security or currency for a Fund's account. Risks associated with forwards may include: (i) an imperfect correlation between the movement in prices of forward contracts and the securities or currencies underlying them; (ii) an illiquid market for forwards; (iii) difficulty in obtaining an accurate value for the forwards; and (iv) the risk that the counterparty to the forward contract will default or otherwise fail to honor its obligation. Because forwards require only a small initial investment in the form of a deposit or margin, they involve a high degree of leverage. Forwards are also subject to credit risk, liquidity risk and leverage risk, each of which is further described elsewhere in this section.

Futures Contracts — Futures contracts, or "futures," provide for the future sale by one party and purchase by another party of a specified amount of a specific security or asset at a specified future time and at a specified price (with or without delivery required). The risks of futures include (i) leverage risk; (ii) correlation or tracking risk and (iii) liquidity risk. Because futures require only a small initial investment in the form of a deposit or margin, they involve a high degree of leverage. Accordingly, the fluctuation of the value of futures in relation to the underlying assets upon which they are based is magnified. Thus, the Funds may experience losses that exceed losses experienced by funds that do not use futures contracts and which may be unlimited, depending on the structure of the contract. There may be imperfect correlation, or even no correlation, between price movements of a futures contract and price movements of investments for which futures are used as a substitute, or which futures are intended to hedge. Lack of correlation (or tracking) may be due to factors unrelated to the value of the investments being hedged, such as speculative or other pressures on the markets in which these instruments are traded. Consequently, the effectiveness of futures as a security substitute or as a hedging vehicle will depend, in part, on the degree of correlation between price movements in the futures and price movements in underlying securities. While futures contracts are generally liquid instruments, under certain market conditions they may become illiquid. Futures exchanges may impose daily or intra-day price change limits and/or limit the volume of trading. Additionally, government regulation may further reduce liquidity through similar trading restrictions. As a result, a Fund may be unable to close out its futures contracts at a time that is advantageous. If movements in the markets for security futures contracts or the underlying security decrease the value of the Funds' positions in security futures contracts, the Funds may be required to have or make additional funds available to its brokerage firm as margin. If the Funds' accounts are under the minimum margin requirements set by the exchange or the brokerage firm, its position may be liquidated at a loss, and the Funds will be liable for the deficit, if any, in its account. A Fund may also experience losses due to systems failures or inadequate system back-up or procedures at the brokerage firm(s) carrying the Fund's positions. The successful use of futures depends upon a variety of factors, particularly the ability of the Sub-Advisers to predict movements of the underlying securities markets, which requires different skills than predicting changes in the prices of individual securities. There can be no assurance that any particular futures strategy adopted will succeed.

Inflation Protected Securities — Certain Funds may invest in inflation protected securities, including Treasury Inflation Protected Securities (TIPS), the value of which generally will fluctuate in response to changes in "real" interest rates. Real interest rates represent nominal (or stated) interest rates reduced by the expected


24


SEI / PROSPECTUS

impact of inflation. The value of an inflation-protected security generally decreases when real interest rates rise and generally increases when real interest rates fall. In addition, the principal value of an inflation-protected security is periodically adjusted up or down along with the rate of inflation. If the measure of inflation falls, the principal value of the inflation-protected security will be adjusted downwards, and consequently, the interest payable on the security will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed by the United States Treasury in the case of TIPS. For securities that do not provide a similar guarantee, the adjusted principal value of the security to be repaid at maturity is subject to credit risk.

Interest Rate — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which a Fund invests. In a low interest rate environment, the risk of a decline in value of the Fund's portfolio securities associated with rising rates are heightened because there may be a greater likelihood of rates increasing, potentially rapidly. In a declining interest rate environment, the Fund generally will be required to invest available cash in instruments with lower interest rates than those of the current portfolio securities. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, whereas others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources.

Investment Style — Investment style risk is the risk that a Fund's investment in certain securities in a particular market segment pursuant to its particular investment strategy may underperform other market segments or the market as a whole.

Leverage — Certain Fund transactions, such as derivatives or reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on a Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of a Fund's portfolio securities. Rule 18f-4 under the 1940 Act requires, among other things, that a Fund either use derivatives in a limited manner or comply with an outer limit on fund leverage risk based on one of two value-at-risk (VaR) tests. The use of leverage may also cause a Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. A Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Mortgage-Backed Securities — Mortgage-backed securities are a class of asset-backed securities representing an interest in a pool or pools of whole mortgage loans (which may be residential mortgage loans or commercial mortgage loans). Mortgage-backed securities held or acquired by a Fund could include (i) obligations guaranteed by federal agencies of the U.S. Government, such as Government National Mortgage Association (Ginnie Mae), which are backed by the "full faith and credit" of the United States, (ii) securities issued by Federal National Mortgage Association (Fannie Mae) and Federal Home Loan


25


SEI / PROSPECTUS

Mortgage Corporation (Freddie Mac), which are not backed by the "full faith and credit" of the United States but are guaranteed by the U.S. Government as to timely payment of principal and interest, (iii) securities (commonly referred to as "private-label RMBS") issued by private issuers that represent an interest in or are collateralized by whole residential mortgage loans without a government guarantee and (iv) commercial mortgage-backed securities (CMBS), which are multi-class or pass-through securities backed by a mortgage loan or a pool of mortgage loans secured by commercial property such as industrial and warehouse properties, office buildings, retail space and shopping malls, multifamily properties and cooperative apartments. Because private-label RMBS and CMBS are not issued or guaranteed by the U.S. Government, those securities generally are structured with one or more types of credit enhancement. There can be no assurance, however, that credit enhancements will support full payment to a Fund of the principal and interest on such obligations. In addition, changes in the credit quality of the entity that provides credit enhancement could cause losses to a Fund and affect its share price.

The Funds may invest in mortgage-backed securities in the form of debt or in the form of "pass-through" certificates. Pass-through certificates, which represent beneficial ownership interests in the related mortgage loans, differ from debt securities, which generally provide for periodic fixed payments of interest on and principal of the related notes. Mortgage pass-through securities provide for monthly payments that are a "pass-through" of the monthly interest and principal payments (including any prepayments) made by the individual borrowers on the pooled mortgage loans, net of any fees and expenses owed to the servicers of the mortgage loans and other transaction parties that receive payment from collections on the mortgage loans.

The performance of mortgage loans and, in turn, the mortgage-backed securities acquired by a Fund, is influenced by a wide variety of economic, geographic, social and other factors, including general economic conditions, the level of prevailing interest rates, the unemployment rate, the availability of alternative financing and homeowner behavior.

The rate and aggregate amount of distributions on mortgage-backed securities, and therefore the average lives of those securities and the yields realized by a Fund, will be sensitive to the rate of prepayments (including liquidations) and modifications of the related mortgage loans, any losses and shortfalls on the related mortgage loans allocable to the tranches held by the Fund and the manner in which principal payments on the related mortgage loans are allocated among the various tranches in the particular securitization transaction. Furthermore, mortgage-backed securities are sensitive to changes in interest rates, but may respond to those changes differently from other fixed income securities due to the possibility of prepayment of the mortgage loans. Among other factors, a significant amount of defaults, rapid prepayments or prepayment interest shortfalls may erode amounts available for distributions to a Fund. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect a Fund's actual yield to maturity, even if the average rate of principal payments is consistent with the Fund's expectations. If prepayments of mortgage loans occur at a rate faster than that anticipated by a Fund, payments of interest on the mortgage-backed securities could be significantly less than anticipated. Similarly, if the number of mortgage loans that are modified is larger than that anticipated by a Fund, payments of principal and interest on the mortgage-backed securities could be significantly less than anticipated.

Opportunity — A Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Portfolio Turnover — The Short-Duration Government and GNMA Funds are subject to portfolio turnover risk, which means that, due to its investment strategies, the Funds may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Funds' performance.


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SEI / PROSPECTUS

Prepayment — The Funds' investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Funds having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Funds.

Reallocation — In addition to managing the Funds, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Funds are designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations among the Funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds. Because a significant portion of the assets in the Funds may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could in certain cases have a detrimental effect on Funds that are being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing a Fund to incur taxable gains. SIMC seeks to manage the impact to the Funds resulting from reallocations in the Strategies.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by a Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. In the event of a default or bankruptcy by a selling financial institution, a Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Funds could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable maturities. Some of the U.S. Government securities that a Fund may hold are not guaranteed or backed by the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

When-Issued and Delayed Delivery Securities and Forward Commitments — When-issued and delayed delivery securities and forward commitments involve the risk that the security a Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security's price.


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SEI / PROSPECTUS

GLOBAL ASSET ALLOCATION

The Funds and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Funds are designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Funds and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations among the Funds and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds and other funds. Because a significant portion of the assets in the Funds and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could, in certain cases, have a detrimental effect on the Funds. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

MORE INFORMATION ABOUT THE FUNDS' BENCHMARK INDEXES

The following information describes the various indexes referred to in the Performance Information sections of this prospectus. An index measures the market price of a specific group of securities in a particular market or securities in a market sector. You cannot invest directly in an index. An index does not have an investment adviser and does not pay any commissions or expenses. If an index had expenses, its performance would be lower.

The Bloomberg Short U.S. Treasury 9-12 Month Index is a widely-recognized, market-weighted index of U.S. Treasury bonds with remaining maturities between nine and twelve months.

The ICE BofA 1-3 Year U.S. Treasury Index is a widely-recognized, market-weighted index of U.S. Treasury Bonds with maturities between one and three years.

The Bloomberg GNMA Index is a total comprehensive GNMA index comprised of 30-year GNMA pass-throughs, 15-year GNMA pass-throughs and GNMA graduated payment mortgages. It is an unmanaged, market value-weighted index. It is commonly used as a comparison for GNMA funds.

The Bloomberg U.S. Aggregate Bond Index (TR) (USD) is a broad-based flagship benchmark that measures the investment grade, US dollar-denominated, fixed-rate taxable bond market. The index includes Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate pass-throughs), asset-backed securities and commercial mortgage-backed securities (agency and non-agency).

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Funds. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management. For its advisory services, SIMC receives a fee at the following annual rates: (i) 0.10% up to $500 million; 0.075% of such net assets between $500 million and $1 billion; and 0.05% of such net assets in excess of $1 billion based on the combined daily


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SEI / PROSPECTUS

net assets of the Short-Duration Government and GNMA Funds and (ii) 0.10% up to $500 million; 0.075% of such net assets between $500 million and $1 billion; and 0.05% of such net assets in excess of $1 billion based on the daily net assets of the Ultra Short Duration Bond Fund. For the fiscal year ended January 31, 2025, SIMC received investment advisory fees at the following annual rates:

    Investment
Advisory Fees
Before Fee Waivers
  Investment
Advisory Fees
After Fee Waivers
 

Ultra Short Duration Bond Fund

   

0.10

%

   

0.10

%

 

Short-Duration Government Fund

   

0.10

%

   

0.10

%

 

GNMA Fund

   

0.10

%

   

0.10

%

 

A discussion regarding the basis for the Board's approval of the Funds' investment advisory and sub-advisory agreements is available on the Funds' website, www.seic.com/fundprospectuses, or online at sec.gov. The Funds' Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Funds' Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of each Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Funds.

The Funds are managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Funds and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of a Fund among the Sub-Advisers (to the extent a Fund has more than one Sub-Adviser);

— monitoring and evaluating each Sub-Adviser's performance;

— overseeing the Sub-Advisers to ensure compliance with the Funds' investment objectives, policies and restrictions; and

— monitoring each Sub-Adviser's adherence to its investment style.

SIMC acts as manager of managers for the Funds pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the Funds without submitting the sub-advisory agreements to a vote of the applicable Funds' shareholders. Among other things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to each Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Funds. The Board supervises SIMC and the Sub-Advisers and establishes policies that they must follow in their management activities.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are


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SEI / PROSPECTUS

able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

The following portfolio managers are primarily responsible for the management and oversight of the Funds, as described above.

Richard A. Bamford serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.

SUB-ADVISERS

Each Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. Each Sub-Adviser must also operate within each Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. Each Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC, and Sub-Advisers may not consult with each other concerning transactions for a Fund. SIMC pays the Sub-Advisers out of the investment advisory fees it receives (as described below).


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SEI / PROSPECTUS

ULTRA SHORT DURATION BOND FUND:

MetLife Investment Management, LLC: MetLife Investment Management, LLC (MIM), located at One MetLife Way, Whippany, NJ 07981, serves as a Sub-Adviser to the Ultra Short Duration Bond Fund. A team of investment professionals manages the portion of the Ultra Short Duration Bond Fund's assets allocated to MIM. Scott Pavlak, CFA, Senior Portfolio Manager, joined MIM and its predecessor in 2008. Prior to joining MIM, Mr. Pavlak was a Senior Managing Director and Head of Fixed Income at Bear Stearns Asset Management. Mr. Pavlak earned a B.S. in Finance from Fairleigh Dickinson University and an M.B.A. in Finance and Economics from the Stern School of Business at New York University. Juan Peruyero, Senior Portfolio Manager, is a member of the short duration team. Prior to his current role, Mr. Peruyero was head of credit strategy, responsible for developing MIM's top-down strategy for corporate credit via evaluation of fundamentals and relative value across numerous asset classes globally. Mr. Peruyero has over 20 years of extensive experience across the credit spectrum including credit research, bank loans, high yield bonds, investment grade, emerging markets, bridge loans and hedge funds. Prior to becoming the global credit strategist, Mr. Peruyero was a co-portfolio manager on an internal long/short credit opportunity fund for approximately three years. Mr. Peruyero received his Bachelor of Science in accounting from The College of New Jersey and his MBA in finance from New York University Stern School of Business. Mr. Peruyero also is a Certified Public Accountant.

Wellington Management Company LLP: Wellington Management Company LLP (Wellington Management), a Delaware limited liability partnership with principal offices located at 280 Congress Street, Boston, Massachusetts 02210, serves as a Sub-Adviser to the Ultra Short Duration Bond Fund. Marc Piccuirro, Senior Managing Director and Fixed Income Portfolio Manager of Wellington Management, manages the portion of the Ultra Short Duration Bond Fund's assets allocated to Wellington Management. Mr. Piccuirro has served as the Portfolio Manager for the Ultra Short Duration Bond Fund since 2023. Mr. Piccuirro joined Wellington Management as an investment professional in 2007.

SHORT-DURATION GOVERNMENT FUND AND GNMA FUND:

Wellington Management Company LLP: Wellington Management Company LLP (Wellington Management), a Delaware limited liability partnership with principal offices located at 280 Congress Street, Boston, Massachusetts 02210, serves as a Sub-Adviser to the Short-Duration Government and GNMA Funds. Brian Conroy, CFA, Senior Managing Director and Fixed Income Portfolio Manager of Wellington Management, manages the portion of the Short-Duration Government and GNMA Funds' assets allocated to Wellington Management. Mr. Conroy has served as the Portfolio Manager for the Short-Duration Government and GNMA Funds since 2018. Mr. Conroy joined Wellington Management as an investment professional in 2012.

The Funds' Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Fee Waivers

Actual total annual Fund operating expenses of the Class Y shares of certain of the Funds for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses tables in the Fund Summary sections because, among other reasons, the Funds' adviser, the Funds' administrator and/or the Funds' distributor voluntarily waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation- or tax-related services and extraordinary expenses not incurred in the ordinary course of the Funds' business) at a specified level. The Funds' adviser, the Funds'


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SEI / PROSPECTUS

administrator and/or the Funds' distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these fee waivers, the actual total annual Fund operating expenses of the Class Y shares of the Funds for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Class Y Shares

  Total Annual Fund
Operating Expenses
(before voluntary fee waivers)
  Total Annual Fund
Operating Expenses
(after voluntary fee
waivers and extraordinary
expenses, if applicable)
 

Ultra Short Duration Bond Fund

   

0.37

%

   

0.30

%

 

Short-Duration Government Fund

   

0.32

%

   

0.32

%

 

GNMA Fund

   

0.46

%

   

0.37

%

 

PURCHASING, EXCHANGING AND SELLING FUND SHARES

The following sections tell you how to purchase, exchange and sell (sometimes called "redeem") Class Y shares of the Funds. Class Y shares may only be purchased by:

•  independent investment advisers investing for the benefit of their clients through accounts held at SEI Private Trust Company, that, after requesting access to Class Y Shares, are determined to be eligible to purchase Class Y Shares based on the criteria maintained by the SEI Funds (or their delegate) and made available to independent investment advisers through the SEI Wealth PlatformSM communication site. For these purposes, the SEI Funds (or their delegate) consider an independent investment adviser to be an individual or a group of related individuals that, in the sole determination of the SEI Funds (or their delegate), operate as a distinct customer of SEI. In the event that an independent investment adviser that was authorized to purchase Class Y Shares for its clients subsequently fails to meet eligibility requirements for whatever reason, which may include a situation where a group of related individuals that previously operated as a distinct customer of SEI cease to do so, the SEI Funds (or their delegate) may in their discretion waive the eligibility requirements;

•  bank trust departments or other financial firms, for the benefit of their clients, that have entered into an agreement with the Funds' Distributor, or authorized affiliates, permitting the purchase of Class Y shares;

•  institutions, such as defined benefit plans, defined contribution plans, healthcare plans and board designated funds, insurance operating funds, foundations, endowments, public plans and Taft-Hartley plans, subject to a minimum initial investment of least $25,000,000 in Class Y shares of the SEI Funds;

•  clients that have entered into an investment advisory agreement with SIMC with respect to their assets invested in the Funds; and

•  other SEI mutual funds.

In the event a Class Y shareholder no longer meets the eligibility requirements to purchase Class Y shares (as noted in the section), the SEI Funds (or their delegate) may, in their discretion, elect to convert such shareholder's Class Y shares into a Class of shares of the same Fund(s) for which such shareholder does meet the eligibility requirements. Without limiting the foregoing, this may include situations, as applicable, where the shareholder's independent investment adviser, bank trust department or financial firm no longer meets the eligibility criteria noted above or the shareholder no longer meets the eligibility criteria (for example, by terminating their relationship with an eligible adviser or firm). In all cases, if a client meets the eligibility


32


SEI / PROSPECTUS

requirements for more than one other Class of shares, then such client's Class Y shares shall be convertible into shares of the Class having the lowest total annual operating expenses (disregarding fee waivers) for which such clients meet the eligibility requirements.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.

HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. Authorized financial institutions and intermediaries may purchase Class Y shares by placing orders with the Transfer Agent or the Funds' authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Funds' wire agent by the close of business on the day after the order is placed. However, in certain circumstances, the Funds, at their discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Funds' procedures and applicable law. The Funds reserve the right to refuse any purchase requests, particularly those that the Funds reasonably believe may not be in the best interest of the Funds or their shareholders and could adversely affect the Funds or their operations. This includes those from any individual or group who, in a Fund's view, is likely to engage in excessive trading (usually defined as four or more "round trips" in a Fund in any twelve-month period). For more information regarding the Funds' policies and procedures related to excessive trading, please see "Frequent Purchases and Redemptions of Fund Shares" below.

You may be eligible to purchase other classes of shares of a Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.

Each Fund calculates its net asset value (NAV) per share once each Business Day as of the close of normal trading on the NYSE (normally, 4:00 p.m. Eastern Time). So, for you to receive the current Business Day's NAV per share, generally the Fund (or an authorized agent) must receive your purchase order in proper form before 4:00 p.m. Eastern Time. A Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase, exchange or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase, exchange or sale requests to these authorized financial institutions at an earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Funds.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase, exchange and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Funds in accordance with the Funds' procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Funds. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.


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SEI / PROSPECTUS

Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, the Fund generally values its investment portfolio at market price. You may obtain the current NAV of the Fund by calling 1-800-DIAL-SEI.

If a market quotation is readily available for the valuation of Fund investments, then it is valued by the Funds' administrator at current market value in accordance with the Funds' Pricing and Valuation Procedures. The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Funds pursuant to Rule 2a-5 under the 1940 Act (the "Rule"). The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable. SIMC, in furtherance of the Board's designation, has appointed a committee of SIMC persons to function as the Valuation Designee (the "Committee") and has established a Valuation and Pricing Policy to implement the Rule and the Funds' Valuation and Pricing Policy (together with SIMC's Valuation and Pricing Policy, the "Fair Value Procedures").

As discussed in detail below, the Committee will typically first seek to fair value investments with valuations received from an independent, third-party pricing agent (a "Pricing Service"). If such valuations are not available or are unreliable, the Committee will seek to obtain a bid price from at least one independent broker or dealer. If a broker or dealer quote is unavailable, the Committee will convene, subject to the Fair Value Procedures, to establish a fair value for the fair value investments.

When valuing portfolio securities, securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (other than securities traded on National Association of Securities Dealers Automated Quotations (NASDAQ) or as otherwise noted below), including securities traded over the counter, are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which the securities are traded or, if there is no such reported sale, at the most recent quoted bid price. Securities traded on NASDAQ are valued at the NASDAQ Official Closing Price.

Redeemable securities issued by open-end investment companies are valued at the investment company's applicable NAV per share, with the exception of ETFs, which are priced as equity securities. These open-end investment company shares are offered in separate prospectuses, each of which describes the process by which the applicable investment company's NAV is determined. The prices of foreign securities are reported in local currency and converted to U.S. dollars using currency exchange rates.

Options are valued at the last quoted sales price. If there is no such reported sale on the valuation date, then long positions are valued at the most recent bid price, and short positions are valued at the most recent ask price as provided by a Pricing Service.

Futures and swaps cleared through a central clearing house (centrally cleared swaps) are valued at the settlement price established each day by the board of exchange on which they are traded. The daily settlement prices for financial futures and centrally cleared swaps are provided by a Pricing Service. On days when there is excessive volume, market volatility or the future or centrally cleared swap does not end trading by the time the fund calculates its NAV, the settlement price may not be available at the time at which a fund calculates its NAV. On such days, the best available price (which is typically the last sales price) may be used to value a Fund's futures or centrally cleared swaps position.

If a security's price cannot be obtained, as noted above, or in the case of equity tranches of CLOs or CDOs, the securities will be valued using a bid price from at least one independent broker. If such prices are not


34


SEI / PROSPECTUS

readily available, are determined to be unreliable or cannot be valued using the methodologies described above, the Committee will fair value the security using the Fair Value Procedures, as described below.

If available, debt securities, swaps (which are not centrally cleared), bank loans or debt tranches of CLOs/CDOs, such as those held by the Funds, are priced based upon valuations provided by a Pricing Service. Such values generally reflect the last reported sales price if the security is actively traded. The Pricing Service may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

On the first day a new debt security purchase is recorded, if a price is not available from a Pricing Service or an independent broker, the security may be valued at its purchase price. Each day thereafter, the debt security will be valued according to the Fair Value Procedures until an independent source can be secured. Securities held by a Fund with remaining maturities of 60 days or less will be valued at their amortized cost. Should existing credit, liquidity or interest rate conditions in the relevant markets and issuer specific circumstances suggest that amortized cost does not approximate fair value, then the security will be valued by an independent broker quote or fair valued by the Committee.

Foreign currency forward contracts are valued at the current day's interpolated foreign exchange rate, as calculated using forward rates provided by a Pricing Service.

The Committee and Fund's administrator, as applicable, reasonably believe that prices provided by Pricing Services are reliable. However, there can be no assurance that such Pricing Service's prices will be reliable. The Committee, who is responsible for making fair value determinations with respect to the Funds' portfolio securities, will, with assistance from the applicable Sub-Adviser, continuously monitor the reliability of readily available market quotations obtained from any Pricing Service and shall promptly notify the Funds' administrator if the Committee reasonably believes that a Pricing Service is no longer a reliable source of readily available market quotations. The Funds' administrator, in turn, will notify the Committee if it reasonably believes that a Pricing Service is no longer a reliable source for readily available market quotations.

The Fair Value Procedures provide that any change in a primary Pricing Service or a pricing methodology for investments with readily available market quotations requires prior approval by the Board. However, when the change would not materially affect the valuation of a Fund's net assets or involve a material departure in pricing methodology from that of the Fund's existing Pricing Service or pricing methodology, ratification may be obtained at the next regularly scheduled meeting of the Board. A change in a Pricing Service or a material change in a pricing methodology for investments with no readily available market quotations will be reported to the Board by the Committee in accordance with certain requirements.

Securities for which market prices are not "readily available" are valued in accordance with Rule 2a-5 and the Fair Value Procedures.

The Committee must monitor for circumstances that may necessitate that a security be valued using Fair Value Procedures, which can include: (i) the security's trading has been halted or suspended, (ii) the security has been de-listed from a national exchange, (iii) the security's primary trading market is temporarily closed at a time when under normal conditions it would be open, (iv) the security has not been traded for an extended period of time, (v) the security's primary pricing source is not able or willing to provide a price, (vi) trading of the security is subject to local government-imposed restrictions, or (vii) a significant event (as defined below). When a security is valued in accordance with the Fair Value Procedures, the Committee will


35


SEI / PROSPECTUS

determine the value after taking into consideration relevant information reasonably available to the Committee. Examples of factors the Committee may consider include: (i) the type of security or asset, (ii) the last trade price, (iii) evaluation of the forces that influence the market in which the security is purchased and sold, (iv) the liquidity of the security, (v) the size of the holding in a Fund or (vi) any other appropriate information.

The Committee is responsible for selecting and applying, in a consistent manner, the appropriate methodologies for determining and calculating the fair value of holdings of the Funds, including specifying the key inputs and assumptions specific to each asset class or holding.

The determination of a security's fair value price often involves the consideration of a number of subjective factors and is therefore subject to the unavoidable risk that the value assigned to a security may be higher or lower than the security's value would be if a reliable market quotation for the security was readily available.

With respect to any investments in foreign securities, the Funds use a third-party fair valuation vendor, which provides a fair value for such foreign securities based on certain factors and methodologies (generally involving tracking valuation correlations between the U.S. market and each foreign security). Values from the vendor are applied in the event that there is a movement in the U.S. market that exceeds a specific threshold that has been established by the Committee. The Committee has also established a "confidence interval," which is used to determine the level of historical correlation between the value of a specific foreign security and movements in the U.S. market before a particular security will be fair-valued when the threshold is exceeded. In the event that the threshold established by the Committee is exceeded on a specific day, the Funds shall value the foreign securities in their portfolios that exceed the applicable "confidence interval" based upon the adjusted prices provided by the vendor. Additionally, if a local market in which the Funds own securities is closed for one or more days (scheduled or unscheduled) while a Fund is open, and if such securities in a Fund's portfolio exceed the predetermined confidence interval discussed above, then such Fund shall value such securities based on the fair value prices provided by the vendor.

For securities that principally trade on a foreign market or exchange, a significant gap in time can exist between the time of a particular security's last trade and the time at which a Fund calculates its NAV. The readily available market quotations of such securities may no longer reflect their market value at the time a Fund calculates NAV if an event that could materially affect the value of those securities (a Significant Event) has occurred between the time of the security's last close and the time that the Fund calculates NAV thereby rendering the readily available market quotations as unreliable. A Fund may invest in securities that are primarily listed on foreign exchanges that trade on weekends or other days when the Fund does not price its shares. As a result, the NAV of a Fund's shares may change on days when shareholders will not be able to purchase or redeem Fund shares. A Significant Event may relate to a single issuer or to an entire market sector.

The Committee is primarily responsible for the obligation to monitor for Significant Events as part of the Committee's ongoing responsibility to determine whether a Fund investment is required to be fair valued (i.e., the investment does not have a reliable readily available market quotation). The Committee may consider input from a Fund's service providers, including the Fund's administrator or a Sub-Adviser, if applicable and as appropriate. If the Committee becomes aware of a Significant Event that has occurred with respect to a security or group of securities after the closing of the exchange or market on which the security or securities principally trade, but before the time at which a Fund calculates net asset value, the Committee shall notify the Fund's administrator.


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SEI / PROSPECTUS

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of a Fund's shares, often with the intent of earning arbitrage profits. Market timing of a Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing a Fund to incur unwanted taxable gains and forcing a Fund to hold excess levels of cash.

The Funds are intended to be long-term investment vehicles and are not designed for investors that engage in short-term trading activity (i.e., a purchase of Fund shares followed shortly thereafter by a redemption of such shares, or vice versa, in an effort to take advantage of short-term market movements). Accordingly, the Board has adopted policies and procedures on behalf of the Funds to deter short-term trading. The Transfer Agent will monitor trades in an effort to detect short-term trading activities. If, as a result of this monitoring, a Fund determines, in its sole discretion, that a shareholder has engaged in excessive short-term trading, it will refuse to process future purchases or exchanges into the Fund from that shareholder's account.

A shareholder will be considered to be engaging in excessive short-term trading in a Fund in the following circumstances:

i.  if the shareholder conducts four (4) or more "round trips" in a Fund in any twelve-month period. A round trip involves the purchase of shares of a Fund and the subsequent redemption of all or most of those shares. An exchange into and back out of a Fund in this manner is also considered a round trip.

ii.  if a Fund determines, in its sole discretion, that a shareholder's trading activity constitutes excessive short-term trading, regardless of whether such shareholder exceeds the foregoing round trip threshold.

The Funds, in their sole discretion, also reserve the right to reject any purchase request (including exchange requests) for any reason without notice.

Judgments with respect to implementation of the Funds' policies are made uniformly and in good faith in a manner that the Funds believe is consistent with the best long-term interests of shareholders. When applying the Funds' policies, the Funds may consider (to the extent reasonably available) an investor's trading history in all SEI Funds, as well as trading in accounts under common ownership, influence or control, and any other information available to the Funds.

The Funds' monitoring techniques are intended to identify and deter short-term trading in the Funds. However, despite the existence of these monitoring techniques, it is possible that short-term trading may occur in the Funds without being identified. For example, certain investors seeking to engage in short-term trading may be adept at taking steps to hide their identity or activity from the Funds' monitoring techniques. Operational or technical limitations may also limit the Funds' ability to identify short-term trading activity.

The Funds and/or their service providers have entered into agreements with financial intermediaries that require them to provide the Funds and/or their service providers with certain shareholder transaction information to enable the Funds and/or their service providers to review the trading activity in the omnibus accounts maintained by financial intermediaries. The Funds may also delegate trade monitoring to the financial intermediaries. If excessive trading is identified in an omnibus account, the Funds will work with the financial intermediary to restrict trading by the shareholder and may request that the financial intermediary prohibit the shareholder from future purchases or exchanges into the Funds.


37


SEI / PROSPECTUS

Certain of the Funds are sold to participant-directed employee benefit plans. The Funds' ability to monitor or restrict trading activity by individual participants in a plan may be constrained by regulatory restrictions or plan policies. In such circumstances, the Funds will take such action, which may include taking no action, as deemed appropriate in light of all the facts and circumstances.

The Funds may amend these policies and procedures in response to changing regulatory requirements or to enhance the effectiveness of the program.

Foreign Investors

The Funds do not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in a Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in a Fund. The Funds may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Funds are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.

The Funds will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Funds, however, reserve the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Funds' overall obligation to deter money laundering under federal law. The Funds have adopted an Anti-Money Laundering Compliance Program designed to prevent the Funds from being used for money laundering or the financing of terrorist activities. In this regard, the Funds reserve the right to: (i) refuse, cancel or rescind any purchase or exchange order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of a Fund or in cases when a Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request


38


SEI / PROSPECTUS

of governmental or law enforcement authority, you may not receive proceeds of the redemption if a Fund is required to withhold such proceeds.

HOW TO EXCHANGE YOUR FUND SHARES

An authorized financial institution or intermediary may exchange Class Y shares of any Fund for Class Y shares of any other fund of SEI Daily Income Trust on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. This exchange privilege may be changed or canceled at any time upon 60 days' notice. For information about how to exchange Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. When you exchange shares, you are really selling your shares of one Fund and buying shares of another Fund. Therefore, your sale price and purchase price will be based on the next calculated NAV after the Funds receive your exchange request. All exchanges are based on the eligibility requirements of the Fund into which you are exchanging and any other limits on sales of or exchanges in that Fund. Each Fund reserves the right to refuse or limit any exchange order for any reason, including if the transaction is deemed not to be in the best interest of the Fund's other shareholders or possibly disruptive to the management of the Fund. When a purchase or exchange order is rejected, the Fund will send notice to the prospective investor or the prospective investor's authorized financial intermediary.

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing with the Transfer Agent or the Funds' authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Funds receive your request or after the Funds' authorized intermediary receives your request if transmitted to the Funds in accordance with the Funds' procedures and applicable law.

Receiving Your Money

Normally, the Funds will make payment on your redemption request on the Business Day following the day on which they receive your request regardless of the method the Funds use to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.

Methods Used to Meet Redemption Obligations

The Funds generally pay sale (redemption) proceeds in cash during normal market conditions. To the extent that a Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to generate such cash through the sale of portfolio assets. The Funds operate an interfund lending program that enables a Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help a Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Funds' remaining shareholders), the Funds might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to


39


SEI / PROSPECTUS

sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

A Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Funds may suspend your right to sell your shares back to the Funds if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.

Large Redemptions

Large unexpected redemptions to a Fund can disrupt portfolio management and increase trading costs by causing the Fund to liquidate a substantial portion of its assets in a short period of time. Large redemptions may arise from the redemption activity of a single investor, or the activity of a single investment manager managing multiple underlying accounts. In the event of a large unexpected redemption, a Fund may take such steps as implementing a redemption in kind or delaying the delivery of redemption proceeds for up to seven days. Further, the Funds may reject future purchases from that investor or investment manager. An investor or investment manager with a large position in a Fund may reduce the likelihood of these actions if it works with the Fund to mitigate the impact of a large redemption by, for example, providing advance notice to the Fund of a large redemption or by implementing the redemption in stages over a period of time.

Telephone Transactions

Purchasing, exchanging and selling Fund shares over the telephone is extremely convenient, but not without risk. The Funds have certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Funds follow these procedures, the Funds will not be responsible for any losses or costs incurred by following telephone instructions that the Funds reasonably believe to be genuine.

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.


40


SEI / PROSPECTUS

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the shares of the Funds.

The Funds may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Funds. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Funds to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the Funds' SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Funds can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in each Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.

Additional information regarding the information disclosed on the Portfolio Holdings Website and the Funds' policies and procedures on the disclosure of portfolio holdings information is available in the SAI.

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Funds distribute their investment income monthly. The Funds make distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about federal, state and local income taxes. Below, the Funds have summarized certain important tax issues that affect the Funds and their shareholders. This summary does not apply to shares held in an individual retirement account or other tax-qualified plans, which are not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future. This summary is based on current tax laws, which may change.

Each Fund has elected and intends to qualify each year for treatment as a regulated investment company (a RIC) within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). If it


41


SEI / PROSPECTUS

meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, a Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.

Each Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains. Once a year the Funds will send you a statement showing the types and total amount of distributions you received during the previous year.

Because the Funds' income is expected to be derived primarily from interest rather than dividends, no portion of a Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

A RIC that receives business interest income may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. A RIC's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the RIC's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. A RIC may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in a Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. Section 163(j) Interest Dividends, if so designated by a Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (IRS).

If you buy shares when a Fund has realized but not yet distributed income or capital gains, you will be "buying a dividend" by paying the full price for the shares and gains and receiving back a portion of the price in the form of a taxable distribution, even though, as an economic matter, the distribution simply constitutes a return of your investment. "Buying a dividend" should generally be avoided by taxable investors.

Each sale or exchange of shares of the Funds may be a taxable event. Assuming you hold shares of a Fund as a capital asset, a sale may result in a capital gain or loss to you. The capital gain or loss generally will be treated as short-term capital gain or loss if you held the shares for 12 months or less, long-term capital gain or loss if you held the shares for longer, except that any capital loss on the sale of a Fund's shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to such Fund shares. In certain circumstances, losses realized on the redemption or exchange of Fund shares may be disallowed. For tax purposes, an exchange of Fund shares for shares of a different fund is the same as a sale.


42


SEI / PROSPECTUS

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale or exchange of Fund shares).

The Funds (or their administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, each Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, each Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, each Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of a Fund's shares may not be changed after the settlement date of each such sale of a Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

If a Fund invests in foreign securities, the Fund may be subject to foreign withholding taxes with respect to dividends or interest the Fund receives from sources in foreign countries.

The Funds' SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Funds' investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Funds. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Funds that you should consider in determining whether to purchase shares of the Funds. The Funds may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Funds and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


43


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The tables that follow present performance information about the Class Y shares of each Fund. This information is intended to help you understand each Fund's financial performance for the past five years, or, if shorter, the period of the Fund's operations. Some of this information reflects financial information for a single Fund share. The total returns in the tables represent the rate that you would have earned (or lost) on an investment in a Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from each Fund's financial statements, which have been audited by KPMG LLP, the Funds' independent registered public accounting firm. Its report, along with each Fund's financial statements, appears in the Funds' Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH YEAR

    Net Asset
Value,
Beginning
of Year
  Net
Investment
Income*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year
  Total
Return†
  Net Assets
End of Year
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
  Portfolio
Turnover
Rate
 

Ultra Short Duration Bond Fund

     

CLASS Y

 
 

2025

   

$

9.28

   

$

0.45

   

$

0.04

   

$

0.49

   

$

(0.43

)

 

$

(0.43

)

 

$

9.34

     

5.44

%

 

$

59,847

     

0.31

%(1)

   

0.38

%

   

4.79

%

   

60

%

 
 

2024

     

9.16

     

0.38

     

0.12

     

0.50

     

(0.38

)

   

(0.38

)

   

9.28

     

5.58

     

59,949

     

0.30

     

0.38

     

4.16

     

75

   
 

2023

     

9.30

     

0.15

     

(0.14

)

   

0.01

     

(0.15

)

   

(0.15

)

   

9.16

     

0.18

     

60,508

     

0.30

     

0.37

     

1.60

     

52

   
 

2022

     

9.38

     

0.06

     

(0.07

)

   

(0.01

)

   

(0.07

)

   

(0.07

)

   

9.30

     

(0.15

)

   

65,281

     

0.30

     

0.36

     

0.61

     

70

   
 

2021

     

9.37

     

0.13

     

0.02

     

0.15

     

(0.14

)

   

(0.14

)

   

9.38

     

1.58

     

62,559

     

0.30

     

0.33

     

1.36

     

73

   

Short Duration Government Fund

     

CLASS Y

 
 

2025

   

$

9.96

   

$

0.39

   

$

0.09

   

$

0.48

   

$

(0.35

)

 

$

(0.35

)

 

$

10.09

     

4.94

%

 

$

24,254

     

0.33

%

   

0.33

%

   

3.89

%

   

99

%

 
 

2024

     

9.88

     

0.31

     

0.06

     

0.37

     

(0.29

)

   

(0.29

)

   

9.96

     

3.85

     

25,133

     

0.33

     

0.33

     

3.14

     

178

   
 

2023

     

10.29

     

0.12

     

(0.39

)

   

(0.27

)

   

(0.14

)

   

(0.14

)

   

9.88

     

(2.58

)

   

31,416

     

0.31

     

0.31

     

1.22

     

139

   
 

2022

     

10.56

     

0.04

     

(0.21

)

   

(0.17

)

   

(0.10

)

   

(0.10

)

   

10.29

     

(1.67

)

   

37,581

     

0.31

     

0.31

     

0.42

     

132

   
 

2021

     

10.38

     

0.11

     

0.22

     

0.33

     

(0.15

)

   

(0.15

)

   

10.56

     

3.17

     

45,836

     

0.32

     

0.32

     

1.04

     

287

   


44


SEI / PROSPECTUS

    Net Asset
Value,
Beginning
of Year
  Net
Investment
Income*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year
  Total
Return†
  Net Assets
End of Year
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
  Portfolio
Turnover
Rate
 

GNMA Fund

     

CLASS Y

 
 

2025

   

$

8.98

   

$

0.30

   

$

(0.11

)

 

$

0.19

   

$

(0.30

)

 

$

(0.30

)

 

$

8.87

     

2.21

%

 

$

1,319

     

0.39

(2)

   

0.49

%

   

3.37

%

   

246

%

 
 

2024

     

9.10

     

0.27

     

(0.12

)

   

0.15

     

(0.27

)

   

(0.27

)

   

8.98

     

1.76

     

1,324

     

0.38

     

0.40

     

3.01

     

145

   
 

2023

     

10.05

     

0.20

     

(0.90

)

   

(0.70

)

   

(0.25

)

   

(0.25

)

   

9.10

     

(6.99

)

   

650

     

0.38

     

0.39

     

2.16

     

235

   
 

2022

     

10.55

     

0.08

     

(0.36

)

   

(0.28

)

   

(0.22

)

   

(0.22

)

   

10.05

     

(2.71

)

   

2,061

     

0.37

     

0.37

     

0.72

     

405

   
 

2021

     

10.44

     

0.14

     

0.22

     

0.36

     

(0.25

)

   

(0.25

)

   

10.55

     

3.42

     

3,619

     

0.33

     

0.33

     

1.31

     

392

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

(1) The expense ratio includes a proxy fee expense. Had this expense been excluded the ratio would have been 0.30%.

(2) The expense ratio includes a proxy fee expense. Had this expense been excluded the ratio would have been 0.37%.

Amounts designated as " — " are zero or have been rounded to zero.


45


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Funds is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Funds' investments is available in the Funds' annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Funds' annual report, you will find a discussion of the market conditions and investment strategies that significantly affected each Funds' annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, Fund Financial Statements, or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail: Write to the Funds at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

SEI-F-054 (5/25)

seic.com


May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Class F Shares

•  Government II Fund (TCGXX)

•  Treasury II Fund (SCPXX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Not all Funds appearing in this prospectus are available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

 

GOVERNMENT II FUND

   

1

   

TREASURY II FUND

   

5

   

Purchase and Sale of Fund Shares

   

9

   

Tax Information

   

9

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

9

   

MORE INFORMATION ABOUT INVESTMENTS

   

9

   

MORE INFORMATION ABOUT RISKS

   

10

   

Risk Information Common to the Funds

   

10

   

More Information About Principal Risks

   

10

   

GLOBAL ASSET ALLOCATION

   

14

   

INVESTMENT ADVISER

   

14

   

SUB-ADVISER

   

16

   

Information About Fee Waivers

   

16

   
PURCHASING, EXCHANGING AND SELLING
FUND SHARES
   

17

   

HOW TO PURCHASE FUND SHARES

   

17

   

Pricing of Fund Shares

   

18

   
Frequent Purchases and Redemptions of
Fund Shares
   

18

   

Foreign Investors

   

18

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

18

   

HOW TO EXCHANGE YOUR FUND SHARES

   

19

   

HOW TO SELL YOUR FUND SHARES

   

19

   

Receiving Your Money

   

20

   

Methods Used to Meet Redemption Obligations

   

20

   

Low Balance Redemptions

   

20

   

Suspension of Your Right to Sell Your Shares

   

20

   

Telephone Transactions

   

20

   

Unclaimed Property

   

21

   

DISTRIBUTION OF FUND SHARES

   

21

   

SERVICE OF FUND SHARES

   

21

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

21

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

   

22

   

Dividends and Distributions

   

22

   

Taxes

   

22

   

ADDITIONAL INFORMATION

   

23

   

FINANCIAL HIGHLIGHTS

   

24

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
 

Back Cover

 

SEI / PROSPECTUS

GOVERNMENT II FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class F Shares

 

Management Fees

   

0.07

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.42

%

 

Total Annual Fund Operating Expenses

   

0.49

%

 

Fee Waivers and Expense Reimbursements

   

-0.29

%

 

Total Annual Fund Operating Expenses Less Fee Waivers and Expense Reimbursements

   

0.20

%*

 

* Effective May 31, 2025, the Fund's administrator and its affiliates have contractually agreed to waive fees and reimburse expenses for a period of one year in order to keep total annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, trustees' fees, taxes and other extraordinary expenses not incurred in the ordinary course of the Fund's business) from exceeding 0.20%. This fee waiver and reimbursement agreement shall remain in effect until May 31, 2026 and, unless earlier terminated, shall be automatically renewed for successive one-year periods thereafter. The agreement may be amended or terminated only with the consent of the Board of Trustees of the Fund (Board).

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Government II Fund — Class F Shares

 

$

20

   

$

128

   

$

245

   

$

588

   

Principal Investment Strategies

Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash and government securities. Government securities are obligations issued or guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities, including obligations issued by private issuers that are guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities.


1


SEI / PROSPECTUS

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.

The Fund values its securities using amortized cost and seeks to maintain a stable net asset value (NAV) of $1.00 per share.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Interest Rate Risk — The risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund.


2


SEI / PROSPECTUS

Redemption Risk — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

An investment in the Fund is not a bank deposit nor is it insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to maintain a constant price per share of $1.00, you may lose money by investing in the Fund. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception. The performance information shown is based on full calendar years. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 1.32% (12/31/23)
Worst Quarter: 0.00% (03/31/21)
The Fund's Class F total return from January 1, 2025 to
March 31, 2025 was
1.03%.





 


3


SEI / PROSPECTUS

Average Annual Total Returns (for the periods ended December 31, 2024)

Class F Shares

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(12/9/1985)
 

Government II Fund

   

5.07

%

   

2.33

%

   

1.62

%

   

3.24

%

 

Please call 1-800-DIAL-SEI to obtain the Fund's current 7-day yield. Additional information about SEI's money market funds is available on our website at http://www.seic.com/holdings.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser. BlackRock Advisors, LLC

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 9 of this prospectus.


4


SEI / PROSPECTUS

TREASURY II FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Class F Shares

 

Management Fees

   

0.07

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.42

%

 

Total Annual Fund Operating Expenses

   

0.49

%

 

Fee Waivers and Expense Reimbursements

   

-0.29

%

 

Total Annual Fund Operating Expenses Less Fee Waivers and Expense Reimbursements

   

0.20

%*

 

* Effective May 31, 2025, the Fund's administrator and its affiliates have contractually agreed to waive fees and reimburse expenses for a period of one year in order to keep total annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, trustees' fees, taxes and other extraordinary expenses not incurred in the ordinary course of the Fund's business) from exceeding 0.20%. This fee waiver and reimbursement agreement shall remain in effect until May 31, 2026 and, unless earlier terminated, shall be automatically renewed for successive one-year periods thereafter. The agreement may be amended or terminated only with the consent of the Board of Trustees of the Fund (Board).

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Treasury II Fund — Class F Shares

 

$

20

   

$

128

   

$

245

   

$

588

   

Principal Investment Strategies

Under normal market conditions, the Fund invests exclusively in U.S. Treasury obligations.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid


5


SEI / PROSPECTUS

and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

Interest Rate Risk — The risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund.

Redemption Risk — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.


6


SEI / PROSPECTUS

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

An investment in the Fund is not a bank deposit nor is it insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to maintain a constant price per share of $1.00, you may lose money by investing in the Fund. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception. The performance information shown is based on full calendar years. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 1.32% (12/31/23)
Worst Quarter: 0.00% (03/31/21)
The Fund's Class F total return from January 1, 2025 to
March 31, 2025 was
1.03%.





 

Average Annual Total Returns (for the periods ended December 31, 2024)

Class F Shares

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(7/28/1989)
 

Treasury II Fund

   

5.10

%

   

2.33

%

   

1.61

%

   

2.64

%

 


7


SEI / PROSPECTUS

Please call 1-800-DIAL-SEI to obtain the Fund's current 7-day yield. Additional information about SEI's money market funds is available on our website at http://www.seic.com/holdings.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser. BlackRock Advisors, LLC

For important information about the Purchase and Sale of Fund Shares, Tax Information and Payments to Broker-Dealers and Other Financial Intermediaries, please turn to page 9 of this prospectus.


8


SEI / PROSPECTUS

Purchase and Sale of Fund Shares

Class F shares do not have a minimum investment requirement; however, shareholders are expected to maintain a minimum account balance of $1,000. You may purchase and redeem shares of a Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). However, a Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted. You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Funds' transfer agent (the Transfer Agent) or the Funds' authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Funds are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), a Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

Each Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

Each Fund has its own investment goal and strategies for reaching that goal. Each Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers who manage portions of each Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Funds and attempts to ensure that the Sub-Adviser complies with the Funds' investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Board.

The investments and strategies described in this prospectus are those that the Sub-Adviser uses under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, each Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Funds will do so only if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income. Of course, there is no guarantee that any Fund will achieve its investment goal. Although not


9


SEI / PROSPECTUS

expected to be a component of the Funds' principal investment strategies, each Fund may lend its securities to certain financial institutions in an attempt to earn additional income.

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Funds

Investing in the Funds involves risk, and there is no guarantee that a Fund will achieve its investment goal. SIMC and the Sub-Adviser, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in a Fund, just as you could with other investments.

A Fund share is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although each Fund is managed to maintain a constant price per share of $1.00, it cannot guarantee it will do so, and it is possible to lose money by investing in the Funds.

The value of your investment in a Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities a Fund owns and the markets in which those securities trade. The effect on a Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Funds:

Cash Management — The value of the investments held by the Fund for cash management can fluctuate. These investments are subject to risk, including market, interest rate and credit risk. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Funds to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Funds invest primarily in investment grade securities, the Funds could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or otherwise honor its obligations. Additionally, if the Funds have uninvested cash, the Funds are subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.


10


SEI / PROSPECTUS

Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Funds in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Funds' investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Funds' assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Funds. These events, and any other future events, may adversely affect the prices and liquidity of the Funds' investments and could result in disruptions in the trading markets.

Extension — The Funds' investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Funds may exhibit additional volatility.

Fixed Income Market — The prices of a Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, a Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Funds. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, a Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.


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SEI / PROSPECTUS

Interest Rate — Interest rate risk is the risk that a Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities, including U.S. Government securities, in which a Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, a Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. The Fund could even have a negative yield (i.e., it may lose money on an operating basis) during a lower interest rate environment. This could impair a Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by a Fund. As a result, it is possible that a Fund would, during these conditions, maintain a substantial portion of its assets in cash, on which it may earn little, if any, income. In general, a fund with a longer average portfolio duration will be more sensitive to risks associated with changing interest rates than a fund with a shorter average portfolio duration.

Leverage — Certain Fund transactions, such as reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on a Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of a Fund's portfolio securities. The use of leverage may also cause a Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy their obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. A Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Municipal Securities — Municipal securities, like other fixed income securities, rise and fall in value in response to economic and market factors, primarily changes in interest rates, and actual or perceived credit quality. Rising interest rates will generally cause municipal securities to decline in value. Longer-term securities respond more sharply to interest rate changes than do shorter-term securities. A municipal security will also lose value if, due to rating downgrades or other factors, there are concerns about the issuer's current or future ability to make principal or interest payments. State and local governments rely on taxes and, to some extent, revenues from private projects financed by municipal securities, to pay interest and principal on municipal debt. Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to repay principal and to make interest payments on securities owned by the Fund. Actual or perceived erosion of the creditworthiness of municipal issuers may reduce the value of the Fund's holdings. As a result, the Fund will be more susceptible to factors which adversely affect issuers of municipal obligations than a mutual fund which does not have as great a concentration in municipal obligations. Also, there may be economic or political changes that impact the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Fund. Any changes in the financial condition of municipal issuers also may adversely affect the value of the Fund's securities.


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Opportunity — A Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Prepayment — The Funds' investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Funds having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Funds.

Reallocation — In addition to managing the Funds, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Funds are designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations among the Funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds. Because a significant portion of the assets in the Funds may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could in certain cases have a detrimental effect on Funds that are being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing a Fund to incur taxable gains. SIMC seeks to manage the impact to the Funds resulting from reallocations in the Strategies.

Redemption — The Funds may experience periods of heavy redemptions that could cause the Funds to liquidate their assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Funds' ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Funds to suspend redemptions and liquidate completely.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by a Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. If a money market fund decides to "look through" a repurchase agreement counterparty issuer to the underlying collateral for diversification purposes, the collateral posted by the counterparty will be required to be cash items or U.S. Government securities. Further, the money market funds will evaluate the creditworthiness of the counterparty before "look through" treatment. Under all repurchase agreements entered into by a Fund, the custodian or its agent must take possession of the underlying collateral. In the event of a default or bankruptcy by a selling financial institution, a Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Funds could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable


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maturities. Some of the U.S. Government securities that a Fund may hold are not guaranteed or backed by the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

GLOBAL ASSET ALLOCATION

The Funds and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Funds are designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Funds and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations among the Funds and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation among the Funds and other funds. Because a significant portion of the assets in the Funds and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Funds. Although reallocations are intended to benefit investors that invest in the Funds through the Strategies, they could, in certain cases, have a detrimental effect on the Funds. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser, located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Funds. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management.

The Funds are managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Funds and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of a Fund among the Sub-Advisers (to the extent a Fund has more than one Sub-Adviser);

— monitoring and evaluating the Sub-Adviser's performance;

— overseeing the Sub-Adviser to ensure compliance with the Funds' investment objectives, policies and restrictions; and

— monitoring the Sub-Adviser's adherence to its investment style.

SIMC acts as manager of managers for the Funds pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the


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Funds without submitting the sub-advisory agreements to a vote of the applicable Funds' shareholders. Among other things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to each Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Funds. The Board supervises SIMC and the Sub-Adviser and establishes policies that they must follow in their management activities.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

A discussion regarding the basis for the Board's approval of the Funds' investment advisory and sub-advisory agreements is available on the Funds' website, www.seic.com/fundprospectuses, or online at sec.gov. The Funds' Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Funds' Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

The following portfolio managers are primarily responsible for the management and oversight of the Funds, as described above.

Richard A. Bamford serves as Portfolio Manager for the Government II and Treasury II Funds. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Government II and Treasury II Funds. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Government II and Treasury II Funds. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.


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SEI / PROSPECTUS

SUB-ADVISER

The Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. The Sub-Adviser must also operate within each Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. The Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC. SIMC pays the Sub-Adviser out of the investment advisory fees it receives (as described below).

BlackRock Advisors, LLC: BlackRock Advisors, LLC (BAL), located at 100 Bellevue Parkway, Wilmington, Delaware 19809, an indirect, wholly-owned subsidiary of BlackRock, Inc. serves as a Sub-Adviser to the Government II and Treasury II Funds. BAL was organized in 1994 to perform advisory services for investment companies. As of March 31, 2025, assets under management were approximately $11.58 million for BAL.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of each Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Funds.

The Funds' Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Fee Waivers

Actual total annual fund operating expenses of the Class F shares of certain of the Funds for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses tables in the Fund Summary sections because, among other reasons, the Funds' adviser, the Funds' administrator and/or the Funds' distributor waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation- or tax-related services and extraordinary expenses not incurred in the ordinary course of the Funds' business) at a specified level. Certain amounts were waived voluntarily. With respect to such voluntary waivers, the Funds' adviser, the Funds' administrator and/or the Funds' distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these contractual and voluntary fee waivers, the actual total annual Fund operating expenses of the Class F shares of the Funds for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Class F Shares

  Total Annual Fund
Operating Expenses
(before fee waivers)
  Total Annual Fund
Operating Expenses
(after fee waivers,
but excluding
waiver to maintain
income yield)
  Total Annual Fund
Operating Expenses
(after fee waivers,
including waiver to
maintain income yield
and extraordinary
expenses, if applicable)
 

Government II Fund

   

0.49

%

   

0.20

%

   

0.20

%

 

Treasury II Fund

   

0.49

%

   

0.20

%

   

0.20

%

 


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PURCHASING, EXCHANGING AND SELLING FUND SHARES

The following sections tell you how to purchase, exchange and sell (sometimes called "redeem") Class F shares of the Funds. The Funds offer Class F shares only to financial institutions and intermediaries for their own or their customers' accounts.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.

HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. However, a Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted.

Authorized financial institutions and intermediaries may purchase Class F shares of the Funds. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Funds' wire agent by the close of business on the same day the order is placed. However, in certain circumstances, the Funds, at their discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Funds' procedures and applicable law. The Funds reserve the right to refuse any purchase requests, particularly those that the Funds reasonably believe may not be in the best interest of the Funds or their shareholders and could adversely affect the Funds or their operations.

You may be eligible to purchase other classes of shares of a Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.

Each Fund calculates its net asset value (NAV) per share once each Business Day as of the close of normal trading on the NYSE (normally, 4:00 p.m. Eastern Time). For you to receive the current Business Day's NAV per share, generally a Fund (or an authorized agent) must receive your purchase order in proper form on the trade date before each Fund's order cut-off time of 2:00 p.m. Eastern Time. A Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase, exchange or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase, exchange or sale requests to these authorized financial institutions at an earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Funds.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase, exchange and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Funds in accordance with the Funds' procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Funds. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.


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SEI / PROSPECTUS

Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, a Fund generally values its investment portfolio using the amortized cost valuation method. The amortized cost valuation method involves valuing a security at its cost on the date of purchase and thereafter (absent unusual circumstances) assuming a constant amortization to maturity of any discount or premium, regardless of the impact of fluctuations in general market rates of interest on the value of the instrument. The amortized cost valuation method is described in greater detail in the Funds' SAI. If this method is determined to be unreliable during certain market conditions or for other reasons, a Fund may value its portfolio at market price. Debt securities, such as those held by the Funds, are priced based upon valuations provided by independent, third-party pricing agents. Such values will generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Fund pursuant to Rule 2a-5 under the 1940 Act. The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable.

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of a Fund's shares, often with the intent of earning arbitrage profits. Market timing of a Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing a Fund to incur unwanted taxable gains and forcing a Fund to hold excess levels of cash.

The Board has not adopted policies and procedures on behalf of the Funds with respect to frequent purchases and redemptions of Fund shares by Fund shareholders. Due to their use for cash sweep and other purposes, it is the Funds' expectation that these money market funds will be used by certain investors for short-term investment purposes.

Foreign Investors

The Funds do not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in a Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in a Fund. The Funds may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Funds are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information


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SEI / PROSPECTUS

about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.

The Funds will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Funds, however, reserve the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Funds' overall obligation to deter money laundering under federal law. The Funds have adopted an Anti-Money Laundering Compliance Program designed to prevent the Funds from being used for money laundering or the financing of terrorist activities. In this regard, the Funds reserve the right to: (i) refuse, cancel or rescind any purchase or exchange order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of a Fund or in cases when a Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request of governmental or law enforcement authority, you may not receive proceeds of the redemption if a Fund is required to withhold such proceeds.

HOW TO EXCHANGE YOUR FUND SHARES

An authorized financial institution or intermediary may exchange Class F shares of any Fund for Class F shares of any other fund of SEI Daily Income Trust on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. This exchange privilege may be changed or canceled at any time upon 60 days' notice. For information about how to exchange Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. When you exchange shares, you are really selling your shares of one Fund and buying shares of another Fund. Therefore, your sale price and purchase price will be based on the next calculated NAV after the Funds receive your exchange request. All exchanges are based on the eligibility requirements of the Fund into which you are exchanging and any other limits on sales of or exchanges in that Fund. Each Fund reserves the right to refuse or limit any exchange order for any reason, including if the transaction is deemed not to be in the best interest of the Fund's other shareholders or possibly disruptive to the management of the Fund. When a purchase or exchange order is rejected, the Fund will send notice to the prospective investor or the prospective investor's authorized financial intermediary.

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing orders with the Transfer Agent or the Funds' authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those


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SEI / PROSPECTUS

systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Funds receive your request or after the Funds' authorized intermediary receives your request if transmitted to the Funds in accordance with the Funds' procedures and applicable law.

Receiving Your Money

Normally, the Funds will make payment on your redemption request as promptly as possible after they receive your request regardless of the method the Funds use to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.

Methods Used to Meet Redemption Obligations

The Funds generally pay sale (redemption) proceeds in cash during normal market conditions. To the extent that a Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to generate such cash through the sale of portfolio assets. The Funds operate an interfund lending program that enables a Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help a Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Funds' remaining shareholders), the Funds might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

A Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Funds may suspend your right to sell your shares back to the Funds if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.

Telephone Transactions

Purchasing, exchanging and selling Fund shares over the telephone is extremely convenient, but not without risk. The Funds have certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Funds follow these procedures, the Funds will not be responsible for any losses or costs incurred by following telephone instructions that the Funds reasonably believe to be genuine.


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SEI / PROSPECTUS

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the Funds' shares.

The Funds may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Funds. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Funds to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the Funds' SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

SERVICE OF FUND SHARES

The Funds have adopted a shareholder services plan and agreement (the Service Plan) with respect to Class F shares that allows such shares to pay service providers a fee in connection with the ongoing servicing of shareholder accounts owning such shares at an annual rate of up to 0.25% of average daily net assets of the Class F shares. The Service Plan provides that shareholder service fees on Class F shares will be paid to SIDCo., which may then be used by SIDCo. to compensate financial intermediaries for providing shareholder services with respect to Class F shares.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Funds can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in each Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.


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SEI / PROSPECTUS

Additional information regarding the information disclosed on the Portfolio Holdings website and the Funds' policies and procedures on the disclosure of portfolio holdings information is available in the SAI.

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Funds declare dividends daily and distribute their investment income monthly. The Funds make distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about U.S. federal, state and local income taxes. Below, the Funds have summarized certain important tax issues that affect the Funds and their shareholders. This summary is based on current tax laws, which may change. This summary does not apply to shares held in an individual retirement account or other tax-qualified plans, which are generally not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future.

Each Fund has elected and intends to qualify each year for treatment as a regulated investment company (a "RIC") within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). If it meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, a Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.

Each Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains.

Because each Funds' income is expected to be derived primarily from interest rather than dividends, no portion of a Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

A RIC that receives business interest income may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. A RIC's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the RIC's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. A RIC may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in a Fund for more than 180 days during the


22


SEI / PROSPECTUS

361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. Section 163(j) Interest Dividends, if so designated by a Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (the "IRS").

Each sale or exchange of Fund shares may be a taxable event. However, it is not anticipated that you will realize any gain or loss on the sale of your Fund shares because the Funds expect to maintain a $1.00 NAV. Assuming you hold shares of a Fund as a capital asset, if a sale or exchange of shares results in a gain or loss to you, the gain or loss generally will be treated as short-term if you held the shares 12 months or less, long-term if you held the shares for longer. For tax purposes, an exchange of Fund shares for shares of a different fund is treated as a taxable sale.

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale or exchange of Fund shares).

The Funds (or their administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, each Fund (or its administrative agent) is also required to report the cost basis information for such shares and report whether these shares have a short-term or long-term holding period. For each sale of its shares, each Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, each Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of a Fund's shares may not be changed after the settlement date of each such sale of a Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

The Funds' SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Funds' investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Funds. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Funds that you should consider in determining whether to purchase shares of the Funds. The Funds may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Funds and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


23


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The tables that follow present performance information about the Class F shares of each Fund. This information is intended to help you understand each Fund's financial performance for the past five years. Some of this information reflects financial information for a single Fund share. The total returns in the tables represent the rate that you would have earned (or lost) on an investment in a Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from each Fund's financial statements, which have been audited by KPMG LLP, the Funds' independent registered public accounting firm. Its report, along with each Fund's financial statements, appears in the Funds' Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH YEAR

    Net Asset
Value,
Beginning
of Year
  Net
Investment
Income/
(Loss)*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Distributions
from
Realized
Capital
Gains
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year/Period
  Total
Return†
  Net Assets
End of
Year/Period
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets(1)
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
 

Government II Fund

     

Class F

 
 

2025

   

$

1.00

   

$

0.05

   

$

   

$

0.05

   

$

(0.05

)

 

$

   

$

(0.05

)

 

$

1.00

     

4.98

%

 

$

1,680,220

     

0.20

%

   

0.50

%

   

4.83

%

 
 

2024

     

1.00

     

0.05

     

     

0.05

     

(0.05

)

   

     

(0.05

)

   

1.00

     

5.04

     

2,441,618

     

0.20

     

0.49

     

4.95

   
 

2023

     

1.00

     

0.02

     

     

0.02

     

(0.02

)

   

(2)

   

(0.02

)

   

1.00

     

1.72

     

1,790,974

     

0.19

     

0.48

     

1.57

   
 

2022

     

1.00

     

     

     

     

(2)

   

(2)

   

(2)

   

1.00

     

0.01

     

2,606,717

     

0.05

     

0.48

     

0.01

   
 

2021

     

1.00

     

     

     

     

(2)

   

     

(2)

   

1.00

     

0.27

     

2,553,183

     

0.18

     

0.48

     

0.24

   

Treasury II Fund

     

Class F

 
 

2025

   

$

1.00

   

$

0.05

   

$

   

$

0.05

   

$

(0.05

)

 

$

(2)

 

$

(0.05

)

 

$

1.00

     

5.01

%

 

$

936,597

     

0.20

%

   

0.50

%

   

4.81

%

 
 

2024

     

1.00

     

0.05

     

     

0.05

     

(0.05

)

   

     

(0.05

)

   

1.00

     

5.01

     

510,720

     

0.20

     

0.50

     

4.91

   
 

2023

     

1.00

     

0.02

     

     

0.02

     

(0.02

)

   

     

(0.02

)

   

1.00

     

1.69

     

494,060

     

0.19

     

0.49

     

1.75

   
 

2022

     

1.00

     

     

     

     

(2)

   

(2)

   

(2)

   

1.00

     

0.02

     

430,208

     

0.06

     

0.49

     

0.00

   
 

2021

     

1.00

     

     

     

     

(2)

   

     

(2)

   

1.00

     

0.27

     

307,851

     

0.19

     

0.49

     

0.30

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.


24


SEI / PROSPECTUS

(1) The Distributor and/or Administrator have voluntarily agreed to waive and reduce its fee and/or reimburse certain expenses of the Fund in order to limit the one-day net income yield of the Fund to not less than 0.01% of the Fund's average daily net assets of the share class. Had these waivers been excluded the ratio would have been at the expense ratio cap figure. See Note 3 to the financial statements for expense limitation figures.

(2) Amount represents less than $0.005 per share.

Amounts designated as "—" are zero or have been rounded to zero.


25


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Funds is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Funds' investments is available in the Funds' annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Funds' annual report, you will find a discussion of the market conditions and investment strategies that significantly affected each Funds' annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, Fund Financial Statements, or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail: Write to the Funds at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

CMS-F-001 (5/25)

seic.com


May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Admin Class Shares
(formerly Class CAA Shares)

•  Government Fund (GFAXX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Admin Class Shares of the Fund are not available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

     

GOVERNMENT FUND

   

1

   

Purchase and Sale of Fund Shares

   

5

   

Tax Information

   

5

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

5

   

MORE INFORMATION ABOUT INVESTMENTS

   

5

   

MORE INFORMATION ABOUT RISKS

   

6

   

Risk Information Common to the Fund

   

6

   

More Information About Principal Risks

   

6

   

GLOBAL ASSET ALLOCATION

   

10

   

INVESTMENT ADVISER

   

10

   

SUB-ADVISER

   

12

   

Information About Voluntary Fee Waivers

   

12

   

PURCHASING AND SELLING FUND SHARES

    13    

HOW TO PURCHASE FUND SHARES

   

13

   

Pricing of Fund Shares

   

14

   
Frequent Purchases and Redemptions of
Fund Shares
   

14

   

Foreign Investors

   

14

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

14

   

HOW TO SELL YOUR FUND SHARES

   

15

   

Receiving Your Money

   

15

   

Methods Used to Meet Redemption Obligations

   

15

   

Low Balance Redemptions

   

16

   

Suspension of Your Right to Sell Your Shares

   

16

   

Telephone Transactions

   

16

   

Unclaimed Property

   

16

   

DISTRIBUTION OF FUND SHARES

   

16

   

SERVICE OF FUND SHARES

   

17

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

17

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

   

17

   

Dividends and Distributions

   

17

   

Taxes

   

17

   

ADDITIONAL INFORMATION

   

19

   

FINANCIAL HIGHLIGHTS

   

20

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
   

Back Cover

   

SEI / PROSPECTUS

GOVERNMENT FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Admin Class Shares

 

Management Fees

   

0.07

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.38

%

 

Total Annual Fund Operating Expenses

   

0.45

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Government Fund — Admin Class Shares

 

$

46

   

$

144

   

$

252

   

$

567

   

Principal Investment Strategies

Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash, government securities and/or repurchase agreements that are collateralized fully with cash or government securities. Government securities are obligations issued or guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities, including obligations issued by private issuers that are guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.


1


SEI / PROSPECTUS

The Fund values its securities using amortized cost and seeks to maintain a stable net asset value (NAV) of $1.00 per share.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.

Interest Rate Risk — The risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund.

Cash Management Risk — The value of the investments held by the Fund for cash management purposes may be affected by market risks, changing interest rates and by changes in credit ratings of the investments. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.


2


SEI / PROSPECTUS

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Redemption Risk — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

An investment in the Fund is not a bank deposit nor is it insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to maintain a constant price per share of $1.00, you may lose money by investing in the Fund. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Admin Class shares of the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception. The performance information shown is based on full calendar years. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.


3


SEI / PROSPECTUS

  Best Quarter: 1.25% (12/31/23)
Worst Quarter: 0.00% (03/31/21)
The Fund's Admin Class total return from January 1, 2025 to March 31, 2025 was 1.00%.
The Fund's Admin Class shares commenced operations on November 20, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Institutional shares is shown. The Fund's Institutional shares are offered in a separate prospectus. Because Admin Class shares are invested in the same portfolio of securities, returns for Admin Class shares would have been substantially similar to those of Institutional shares, shown here, and would have differed only to the extent that Admin Class shares, for certain years, have higher total annual fund operating expenses than Institutional shares.
 

Average Annual Total Returns (for the periods ended December 31, 2024)

Admin Class Shares*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(10/27/1995)
 

Government Fund

   

4.88

%

   

2.24

%

   

1.59

%

   

2.32

%

 

* The Fund's Admin Class shares commenced operations on November 20, 2015. For periods prior to November 20, 2015, the performance of the Fund's Institutional shares has been used. Returns for Admin Class shares would have been substantially similar to those of Institutional shares and would have differed only to the extent that Admin Class shares, for certain years, have higher total annual fund operating Admin Class shares expenses than Institutional shares.

Please call 1-800-DIAL-SEI to obtain the Fund's current 7-day yield. Additional information about SEI's money market funds is available on our website at http://www.seic.com/holdings.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser. BlackRock Advisors, LLC


4


SEI / PROSPECTUS

Purchase and Sale of Fund Shares

Admin Class shares do not have a minimum investment requirement; however, shareholders are expected to maintain a minimum account balance of $1,000. You may purchase and redeem shares of the Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted. You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Fund's transfer agent (the Transfer Agent) or the Fund's authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Fund are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

The Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

The Fund has its own investment goal and strategies for reaching that goal. The Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers (each, a Sub-Adviser) who manage portions of the Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Fund and attempts to ensure that the Sub-Adviser complies with the Fund's investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Board.

This prospectus describes the Fund's principal investment strategies. Under normal circumstances, the Fund will invest at least 99.5% of its net assets (plus the amount of any borrowings for investment purposes) in government securities.

The investments and strategies described in this prospectus are those that the Sub-Adviser uses under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, the Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Fund will do so only


5


SEI / PROSPECTUS

if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income. Of course, there is no guarantee that the Fund will achieve its investment goal. Although not expected to be a component of the Fund's principal investment strategies, the Fund may lend its securities to certain financial institutions in an attempt to earn additional income.

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Fund

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. SIMC and the Sub-Adviser, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in the Fund, just as you could with other investments.

A Fund share is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund is managed to maintain a constant price per share of $1.00, it cannot guarantee it will do so, and it is possible to lose money by investing in the Fund.

The value of your investment in the Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities the Fund owns and the markets in which those securities trade. The effect on the Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Fund:

Cash Management — The value of the investments held by the Fund for cash management can fluctuate. These investments are subject to risk, including market, interest rate and credit risk. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Fund to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Fund invests primarily in investment grade securities, the Fund could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or


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SEI / PROSPECTUS

otherwise honor its obligations. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.

Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Fund in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Fund's investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Fund's assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Fund. These events, and any other future events, may adversely affect the prices and liquidity of the Fund's investments and could result in disruptions in the trading markets.

Extension — The Fund's investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Fund may exhibit additional volatility.

Fixed Income Market — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Fund. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, the Fund's value may fluctuate and/or the Fund may experience increased


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SEI / PROSPECTUS

redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

Interest Rate — Interest rate risk is the risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. The Fund could even have a negative yield (i.e., it may lose money on an operating basis) during a lower interest rate environment. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund. As a result, it is possible that the Fund would, during these conditions, maintain a substantial portion of its assets in cash, on which it may earn little, if any, income. In general, a fund with a longer average portfolio duration will be more sensitive to risks associated with changing interest rates than a fund with a shorter average portfolio duration.

Leverage — Certain Fund transactions, such as reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on the Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of the Fund's portfolio securities. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. The Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Municipal Securities — Municipal securities, like other fixed income securities, rise and fall in value in response to economic and market factors, primarily changes in interest rates, and actual or perceived credit quality. Rising interest rates will generally cause municipal securities to decline in value. Longer-term securities respond more sharply to interest rate changes than do shorter-term securities. A municipal security will also lose value if, due to rating downgrades or other factors, there are concerns about the issuer's current or future ability to make principal or interest payments. State and local governments rely on taxes and, to some extent, revenues from private projects financed by municipal securities, to pay interest and principal on municipal debt. Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to repay principal and to make interest payments on securities owned by the Fund. Actual or perceived erosion of the creditworthiness of municipal issuers may reduce the value of the Fund's holdings. As a result, the Fund will be more susceptible to factors which adversely affect issuers of municipal obligations than a mutual fund which does not have as great a concentration in municipal obligations. Also, there may be economic or


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political changes that impact the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Fund. Any changes in the financial condition of municipal issuers also may adversely affect the value of the Fund's securities.

Opportunity — The Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Prepayment — The Fund's investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Fund having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Fund.

Reallocation — In addition to managing the Fund, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Fund is designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations of the Fund to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund. Because a significant portion of the assets in the Fund may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could in certain cases have a detrimental effect on a Fund that is being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing the Fund to incur taxable gains. SIMC seeks to manage the impact to the Fund resulting from reallocations in the Strategies.

Redemption — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by the Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. If a money market fund decides to "look through" a repurchase agreement counterparty issuer to the underlying collateral for diversification purposes, the collateral posted by the counterparty will be required to be cash items or U.S. Government securities. Further, the money market funds will evaluate the creditworthiness of the counterparty before "look through" treatment. Under all repurchase agreements entered into by the Fund, the custodian or its agent must take possession of the underlying collateral. In the event of a default or bankruptcy by a selling financial institution, the Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Fund could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this


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guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable maturities. Some of the U.S. Government securities that the Fund may hold are not guaranteed or backed by the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

GLOBAL ASSET ALLOCATION

The Fund and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Fund is designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Fund and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations of the Fund and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund and other funds. Because a significant portion of the assets in the Fund and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could, in certain cases, have a detrimental effect on the Fund. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser, located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Fund. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management.

The Fund is managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Fund and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of the Fund among the Sub-Advisers (to the extent the Fund has more than one Sub-Adviser);

— monitoring and evaluating the Sub-Adviser's performance;

— overseeing the Sub-Adviser to ensure compliance with the Fund's investment objectives, policies and restrictions; and

— monitoring the Sub-Adviser's adherence to its investment style.


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SIMC acts as manager of managers for the Fund pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the Fund without submitting the sub-advisory agreements to a vote of the Fund's shareholders. Among other things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to the Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Fund. The Board supervises SIMC and the Sub-Adviser and establishes policies that they must follow in their management activities.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

A discussion regarding the basis for the Board's approval of the Fund's investment advisory and sub-advisory agreements is available on the Fund's website, www.seic.com/fundprospectuses, or online at sec.gov. The Fund's Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Fund's Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

The following portfolio managers are primarily responsible for the management and oversight of the Fund, as described above.

Richard A. Bamford serves as Portfolio Manager for the Fund. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Fund. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Fund. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's


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SEI / PROSPECTUS

Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.

SUB-ADVISER

The Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. The Sub-Adviser must also operate within the Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. The Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC. SIMC pays the Sub-Adviser out of the investment advisory fees it receives (as described below).

BlackRock Advisors, LLC: BlackRock Advisors, LLC (BAL), located at 100 Bellevue Parkway, Wilmington, Delaware 19809, an indirect, wholly-owned subsidiary of BlackRock, Inc. serves as a Sub-Adviser to the Fund. BAL was organized in 1994 to perform advisory services for investment companies. As of December 31, 2024, assets under management were approximately $11.58 million for BAL.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of the Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Fund.

The Fund's Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Voluntary Fee Waivers

The total annual fund operating expenses of the Fund's Admin Class shares for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses table in the Fund Summary section because, among other reasons, the Fund's adviser, the Fund's administrator and/or the Fund's distributor waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation-or tax-related services and extraordinary expenses not incurred in the ordinary course of the Fund's business) at a specified level. Certain amounts were waived voluntarily. With respect to such voluntary waivers, the Fund's adviser, the Fund's administrator and/or the Fund's distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these voluntary fee waivers, the actual total annual Fund operating expenses of the Admin Class shares of the Fund for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Admin Class Shares

  Total Annual Fund
Operating Expenses
(before fee waivers)
  Total Annual Fund
Operating Expenses
(after fee waivers,
but excluding waiver to
maintain income yield)
  Total Annual Fund
Operating Expenses
(after fee waivers,
including waiver to
maintain income yield
and extraordinary
expenses, if applicable)
 

Government Fund

   

0.45

%

   

0.35

%

   

0.35

%

 


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SEI / PROSPECTUS

PURCHASING AND SELLING FUND SHARES

The following sections tell you how to purchase and sell (sometimes called "redeem") Admin Class shares of the Funds. Please note that prior to May 31, 2025, Admin Class Shares were known as Class CAA Shares. The Funds offer Admin Class shares only to financial institutions and intermediaries for their own or their customers' accounts.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.

HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted.

Authorized financial institutions and intermediaries may purchase Admin Class shares of the Fund. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Fund's wire agent by the close of business on the same day the order is placed. However, in certain circumstances, the Fund, at its discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Fund's procedures and applicable law. The Fund reserves the right to refuse any purchase requests, particularly those that the Fund reasonably believes may not be in the best interest of the Fund or its shareholders and could adversely affect the Fund or its operations.

You may be eligible to purchase other classes of shares of the Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.

The Fund calculates its net asset value (NAV) per share once each Business Day as of 4:30 p.m. Eastern Time. For you to receive the current Business Day's NAV per share, generally the Fund (or an authorized agent) must receive your purchase order in proper form on the trade date before the Fund's order cut-off time of 4:30 p.m. Eastern Time. The Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase or sale requests to these authorized financial institutions at an earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Fund.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Fund in accordance with the Fund's procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Fund. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.


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Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, the Fund generally values its investment portfolio using the amortized cost valuation method. The amortized cost valuation method involves valuing a security at its cost on the date of purchase and thereafter (absent unusual circumstances) assuming a constant amortization to maturity of any discount or premium, regardless of the impact of fluctuations in general market rates of interest on the value of the instrument. The amortized cost valuation method is described in greater detail in the Fund's SAI. If this method is determined to be unreliable during certain market conditions or for other reasons, the Fund may value its portfolio at market price. Debt securities, such as those held by the Fund, are priced based upon valuations provided by independent, third-party pricing agents. Such values will generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Fund pursuant to Rule 2a-5 under the 1940 Act. The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable.

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of the Fund's shares, often with the intent of earning arbitrage profits. Market timing of the Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing the Fund to incur unwanted taxable gains and forcing the Fund to hold excess levels of cash.

The Board has not adopted policies and procedures on behalf of the Fund with respect to frequent purchases and redemptions of Fund shares by Fund shareholders. Due to its use for cash sweep and other purposes, it is the Fund's expectation that this money market fund will be used by certain investors for short-term investment purposes.

Foreign Investors

The Fund does not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in the Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in the Fund. The Fund may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Fund are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information


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SEI / PROSPECTUS

about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.

The Fund will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Fund, however, reserves the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Fund's overall obligation to deter money laundering under federal law. The Fund has adopted an Anti-Money Laundering Compliance Program designed to prevent the Fund from being used for money laundering or the financing of terrorist activities. In this regard, the Fund reserves the right to: (i) refuse, cancel or rescind any purchase order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of the Fund or in cases when the Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request of governmental or law enforcement authority, you may not receive proceeds of the redemption if the Fund is required to withhold such proceeds.

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Fund receives your request or after the Fund's authorized intermediary receives your request if transmitted to the Fund in accordance with the Fund's procedures and applicable law.

Receiving Your Money

Normally, the Fund will make payment on your redemption request as promptly as possible after they receive your request regardless of the method the Fund uses to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.

Methods Used to Meet Redemption Obligations

The Fund generally pays sale (redemption) proceeds in cash during normal market conditions. To the extent that the Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to


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SEI / PROSPECTUS

generate such cash through the sale of portfolio assets. The Fund operates an interfund lending program that enables the Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help the Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Fund's remaining shareholders), the Fund might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

The Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Fund may suspend your right to sell your shares back to the Fund if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.

Telephone Transactions

Purchasing and selling Fund shares over the telephone is extremely convenient, but not without risk. The Fund has certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Fund follows these procedures, the Fund will not be responsible for any losses or costs incurred by following telephone instructions that the Fund reasonably believes to be genuine.

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the Fund's shares.


16


SEI / PROSPECTUS

The Fund may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Fund. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Fund to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the Fund's SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

SERVICE OF FUND SHARES

The Fund has adopted a shareholder services plan and agreement (the Service Plan) with respect to Admin Class shares that allows such shares to pay service providers a fee in connection with the ongoing servicing of shareholder accounts owning such shares at an annual rate of up to 0.25% of average daily net assets of the Admin Class shares. The Service Plan provides that shareholder service fees on Admin Class shares will be paid to SIDCo., which may then be used by SIDCo. to compensate financial intermediaries for providing shareholder services with respect to Admin Class shares.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Fund can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in the Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.

Additional information regarding the information disclosed on the Portfolio Holdings website and the Fund's policies and procedures on the disclosure of portfolio holdings information is available in the SAI.

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Fund declares dividends daily and distributes its investment income monthly. The Fund makes distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about U.S. federal, state and local income taxes. Below, the Fund has summarized certain important tax issues that affect the Fund and its shareholders. This summary is based on current tax laws, which may change. This summary does not apply to shares held in


17


SEI / PROSPECTUS

an individual retirement account or other tax-qualified plans, which are generally not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future.

The Fund has elected and intends to qualify each year for treatment as a regulated investment company (a "RIC") within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). If it meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, the Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.

The Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains.

Because the Fund's income is expected to be derived primarily from interest rather than dividends, no portion of the Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

If the Fund receives business interest income it may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. The Fund's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the Fund's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. The Fund may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in the Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. However, the holding period requirement does not apply to the Fund because it declares interest dividends on a daily basis in an amount equal to at least 90 percent of the Fund's excess section 163(j) interest income and distributes such dividends on a monthly basis. Section 163(j) Interest Dividends, if so designated by the Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (the "IRS").

Each sale of Fund shares may be a taxable event. However, it is not anticipated that you will realize any gain or loss on the sale of your Fund shares because the Fund expects to maintain a $1.00 NAV. Assuming you hold shares as a capital asset, if a sale of shares results in a gain or loss to you, the gain or loss generally will be treated as short-term capital gain or loss if you held the shares 12 months or less, long-term capital gain or loss if you held the shares for longer, except that any capital loss on the sale of the Fund's shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to such Fund shares.


18


SEI / PROSPECTUS

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale of Fund shares).

The Fund (or its administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, the Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, the Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, the Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of the Fund's shares may not be changed after the settlement date of each such sale of the Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

The Fund's SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Fund's investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Fund. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Fund that you should consider in determining whether to purchase shares of the Fund. The Fund may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Fund and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


19


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The table that follows presents performance information about the Admin Class shares of the Fund. This information is intended to help you understand the Fund's financial performance for the past five years. Some of this information reflects financial information for a single Fund share. The total returns in the table represent the rate that you would have earned (or lost) on an investment in the Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from the Fund's financial statements, which have been audited by KPMG LLP, the Fund's independent registered public accounting firm. Its report, along with the Fund's financial statements, appears in the Fund's Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH YEAR

    Net Asset
Value,
Beginning
of Year/Period
  Net
Investment
Income/(Loss)*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total
from
Operations
  Dividends
from Net
Investment
Income
  Distributions
from
Realized
Capital
Gains
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year/Period
  Total
Return†
  Net Assets
End of Year/Period
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets(1)
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
 

Government Fund

     

Admin Class

 
 

2025

   

$

1.00

   

$

0.05

   

$

   

$

0.05

   

$

(0.05

)

 

$

(2)

 

$

(0.05

)

 

$

1.00

     

4.81

%

 

$

12,000

     

0.35

%

   

0.46

%

   

4.70

%

 
 

2024

     

1.00

     

0.05

     

     

0.05

     

(0.05

)

   

(2)

   

(0.05

)

   

1.00

     

4.81

     

14,705

     

0.29

     

0.45

     

4.69

   
 

2023

     

1.00

     

0.02

     

     

0.02

     

(0.02

)

   

(2)

   

(0.02

)

   

1.00

     

1.69

     

21,037

     

0.19

     

0.45

     

1.85

   
 

2022

     

1.00

     

     

     

     

(2)

   

(2)

   

(2)

   

1.00

     

0.01

     

14,851

     

0.06

     

0.44

     

0.01

   
 

2021

     

1.00

     

     

     

     

(2)

   

     

(2)

   

1.00

     

0.23

     

12,812

     

0.18

     

0.45

     

0.24

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

(1) The Distributor and/or Administrator have voluntarily agreed to waive and reduce its fee and/or reimburse certain expenses of the Fund in order to limit the one-day net income yield of the Fund to not less than 0.01% of the Fund's average daily net assets of the share class. Had these waivers been excluded the ratio would have been at the expense ratio cap figure. See Note 3 to the financial statements for expense limitation figures.

(2) Amount represents less than $0.005 per share.

Amounts designated as "—" are zero or have been rounded to zero.


20


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Fund is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Fund's investments is available in the Fund's annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Fund's annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the Fund's annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, Fund Financial Statements or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail:  Write to the Fund at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

CMS-F-055 (5/25)

seic.com


May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Wealth Class Shares
(formerly Sweep Class Shares)

•  Government Fund (AABXX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The Fund is not available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

 

GOVERNMENT FUND

   

1

   

Purchase and Sale of Fund Shares

   

5

   

Tax Information

   

5

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

5

   

MORE INFORMATION ABOUT INVESTMENTS

   

5

   

MORE INFORMATION ABOUT RISKS

   

6

   

Risk Information Common to the Fund

   

6

   

More Information About Principal Risks

   

6

   

GLOBAL ASSET ALLOCATION

   

10

   

INVESTMENT ADVISER

   

10

   

SUB-ADVISER

   

12

   

Information About Voluntary Fee Waivers

   

12

   

PURCHASING AND SELLING FUND SHARES

   

12

   

HOW TO PURCHASE FUND SHARES

   

13

   

Pricing of Fund Shares

   

13

   
Frequent Purchases and Redemptions of
Fund Shares
   

14

   

Foreign Investors

   

14

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

14

   

HOW TO SELL YOUR FUND SHARES

   

15

   

Receiving Your Money

   

15

   

Methods Used to Meet Redemption Obligations

   

15

   

Low Balance Redemptions

   

16

   

Suspension of Your Right to Sell Your Shares

   

16

   

Telephone Transactions

   

16

   

Unclaimed Property

   

16

   

DISTRIBUTION OF FUND SHARES

   

16

   

SERVICE OF FUND SHARES

   

17

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

17

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

    17    

Dividends and Distributions

   

17

   

Taxes

   

17

   

ADDITIONAL INFORMATION

   

19

   

FINANCIAL HIGHLIGHTS

   

20

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
   

Back Cover

   

SEI / PROSPECTUS

GOVERNMENT FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Wealth Class Shares

 

Management Fees

   

0.07

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.38

%

 

Total Annual Fund Operating Expenses

   

0.45

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Government Fund — Wealth Class Shares

 

$

46

   

$

144

   

$

252

   

$

567

   

Principal Investment Strategies

Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash, government securities and/or repurchase agreements that are collateralized fully with cash or government securities. Government securities are obligations issued or guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities, including obligations issued by private issuers that are guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.


1


SEI / PROSPECTUS

The Fund values its securities using amortized cost and seeks to maintain a stable net asset value (NAV) of $1.00 per share.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.

Interest Rate Risk — The risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund.

Cash Management Risk — The value of the investments held by the Fund for cash management purposes may be affected by market risks, changing interest rates and by changes in credit ratings of the investments. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.


2


SEI / PROSPECTUS

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.

Redemption Risk — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

An investment in the Fund is not a bank deposit nor is it insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to maintain a constant price per share of $1.00, you may lose money by investing in the Fund. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception. The performance information shown is based on full calendar years. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.


3


SEI / PROSPECTUS

  Best Quarter: 1.24% (09/30/24)
Worst Quarter: 1.12% (12/31/24)
The Fund's Wealth Class shares total return from January 1, 2025 to March 31, 2025 was 1.00%.
Wealth Class Shares of the Fund commenced operations on January 17, 2023. For full calendar years through December 31, 2023, the performance of the Fund's Institutional shares is shown. The Fund's Institutional shares are offered in a separate prospectus. Because Wealth Class shares would have been invested in the same portfolio of securities, returns for Wealth Class shares would have been substantially similar to those of Institutional shares, shown here, and would have differed only to the extent that the classes do not have the same total annual fund operating expenses. Because Wealth Class shares have higher expenses than Institutional shares, performance for Wealth Class shares would have been lower than that of Institutional shares.
 

Average Annual Total Returns (for the periods ended December 31, 2024)

Wealth Class Shares*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(10/27/1995)
 

Government Fund

   

4.88

%

   

2.29

%

   

1.59

%

   

2.32

%

 

* The Fund's Wealth Class shares commenced operations on January 17, 2023. For periods prior to January 17, 2023, the performance of the Fund's Institutional shares has been used. Returns for Wealth Class shares would have been substantially similar to those of Institutional shares and would have differed only to the extent that Wealth Class shares have higher total annual fund operating expenses than Institutional shares.

Please call 1-800-DIAL-SEI to obtain the Fund's current 7-day yield. Additional information about SEI's money market funds is available on our website at http://www.seic.com/holdings.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 
Anthony Karaminas, CFA
 
  Since 2022
 
  Portfolio Manager, Head of Sub-Advised
Fixed Income
 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser. BlackRock Advisors, LLC


4


SEI / PROSPECTUS

Purchase and Sale of Fund Shares

Wealth Class shares do not have a minimum investment requirement; however, shareholders are expected to maintain a minimum account balance of $1,000. You may purchase and redeem shares of the Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted. You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Fund's transfer agent (the Transfer Agent) or the Fund's authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Fund are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

The Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

The Fund has its own investment goal and strategies for reaching that goal. The Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers (each, a Sub-Adviser) who manage portions of the Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Fund and attempts to ensure that the Sub-Adviser complies with the Fund's investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Board.

This prospectus describes the Fund's principal investment strategies. Under normal circumstances, the Fund will invest at least 99.5% of its net assets (plus the amount of any borrowings for investment purposes) in government securities.

The investments and strategies described in this prospectus are those that the Sub-Adviser uses under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, the Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Fund will


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do so only if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income. Of course, there is no guarantee that the Fund will achieve its investment goal. Although not expected to be a component of the Fund's principal investment strategies, the Fund may lend its securities to certain financial institutions in an attempt to earn additional income.

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Fund

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. SIMC and the Sub-Adviser, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in the Fund, just as you could with other investments.

A Fund share is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund is managed to maintain a constant price per share of $1.00, it cannot guarantee it will do so, and it is possible to lose money by investing in the Fund.

The value of your investment in the Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities the Fund owns and the markets in which those securities trade. The effect on the Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Fund:

Cash Management — The value of the investments held by the Fund for cash management can fluctuate. These investments are subject to risk, including market, interest rate and credit risk. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Fund to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Fund invests primarily in investment grade securities, the Fund could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or otherwise honor its obligations. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.


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Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Fund in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Fund's investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Fund's assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Fund. These events, and any other future events, may adversely affect the prices and liquidity of the Fund's investments and could result in disruptions in the trading markets.

Extension — The Fund's investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Fund may exhibit additional volatility.

Fixed Income Market — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Fund. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.


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Interest Rate — Interest rate risk is the risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. The Fund could even have a negative yield (i.e., it may lose money on an operating basis) during a lower interest rate environment. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund. As a result, it is possible that the Fund would, during these conditions, maintain a substantial portion of its assets in cash, on which it may earn little, if any, income. In general, a fund with a longer average portfolio duration will be more sensitive to risks associated with changing interest rates than a fund with a shorter average portfolio duration.

Leverage — Certain Fund transactions, such as reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on the Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of the Fund's portfolio securities. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. The Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Municipal Securities — Municipal securities, like other fixed income securities, rise and fall in value in response to economic and market factors, primarily changes in interest rates, and actual or perceived credit quality. Rising interest rates will generally cause municipal securities to decline in value. Longer-term securities respond more sharply to interest rate changes than do shorter-term securities. A municipal security will also lose value if, due to rating downgrades or other factors, there are concerns about the issuer's current or future ability to make principal or interest payments. State and local governments rely on taxes and, to some extent, revenues from private projects financed by municipal securities, to pay interest and principal on municipal debt. Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to repay principal and to make interest payments on securities owned by the Fund. Actual or perceived erosion of the creditworthiness of municipal issuers may reduce the value of the Fund's holdings. As a result, the Fund will be more susceptible to factors which adversely affect issuers of municipal obligations than a mutual fund which does not have as great a concentration in municipal obligations. Also, there may be economic or political changes that impact the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Fund. Any changes in the financial condition of municipal issuers also may adversely affect the value of the Fund's securities.


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Opportunity — The Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Prepayment — The Fund's investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Fund having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Fund.

Reallocation — In addition to managing the Fund, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Fund is designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations of the Fund to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund. Because a significant portion of the assets in the Fund may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could in certain cases have a detrimental effect on a Fund that is being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing the Fund to incur taxable gains. SIMC seeks to manage the impact to the Fund resulting from reallocations in the Strategies.

Redemption — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by the Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. If a money market fund decides to "look through" a repurchase agreement counterparty issuer to the underlying collateral for diversification purposes, the collateral posted by the counterparty will be required to be cash items or U.S. Government securities. Further, the money market funds will evaluate the creditworthiness of the counterparty before "look through" treatment. Under all repurchase agreements entered into by the Fund, the custodian or its agent must take possession of the underlying collateral. In the event of a default or bankruptcy by a selling financial institution, the Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Fund could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable maturities. Some of the U.S. Government securities that the Fund may hold are not guaranteed or backed by


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the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

GLOBAL ASSET ALLOCATION

The Fund and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Fund is designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Fund and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations of the Fund and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund and other funds. Because a significant portion of the assets in the Fund and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could, in certain cases, have a detrimental effect on the Fund. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser, located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Fund. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management.

The Fund is managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Fund and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of the Fund among the Sub-Advisers (to the extent the Fund has more than one Sub-Adviser);

— monitoring and evaluating the Sub-Adviser's performance;

— overseeing the Sub-Adviser to ensure compliance with the Fund's investment objectives, policies and restrictions; and

— monitoring the Sub-Adviser's adherence to its investment style.

SIMC acts as manager of managers for the Fund pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the Fund without submitting the sub-advisory agreements to a vote of the Fund's shareholders. Among other


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things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to the Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Fund. The Board supervises SIMC and the Sub-Adviser and establishes policies that they must follow in their management activities.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

A discussion regarding the basis for the Board's approval of the Fund's investment advisory and sub-advisory agreements is available on the Fund's website, www.seic.com/fundprospectuses, or online at sec.gov. The Fund's Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Fund's Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

The following portfolio managers are primarily responsible for the management and oversight of the Fund, as described above.

Richard A. Bamford serves as Portfolio Manager for the Fund. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Fund. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Fund. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.


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SUB-ADVISER

The Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. The Sub-Adviser must also operate within the Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. The Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC. SIMC pays the Sub-Adviser out of the investment advisory fees it receives (as described below).

BlackRock Advisors, LLC: BlackRock Advisors, LLC (BAL), located at 100 Bellevue Parkway, Wilmington, Delaware 19809, an indirect, wholly-owned subsidiary of BlackRock, Inc. serves as a Sub-Adviser to the Fund. BAL was organized in 1994 to perform advisory services for investment companies. As of December 31, 2024, assets under management were approximately $11.58 million for BAL.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of the Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Fund.

The Fund's Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Voluntary Fee Waivers

The total annual fund operating expenses of the Fund's Wealth Class shares for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses table in the Fund Summary section because, among other reasons, the Fund's adviser, the Fund's administrator and/or the Fund's distributor waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation-or tax-related services and extraordinary expenses not incurred in the ordinary course of the Fund's business) at a specified level. Certain amounts were waived voluntarily. With respect to such voluntary waivers, the Fund's adviser, the Fund's administrator and/or the Fund's distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these voluntary fee waivers, the actual total annual Fund operating expenses of the Wealth Class shares of the Fund for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Wealth Class Shares

  Total Annual Fund
Operating Expenses
(before fee waivers)
  Total Annual Fund
Operating Expenses
(after fee waivers,
but excluding waiver to
maintain income yield)
  Total Annual Fund
Operating Expenses
(after fee waivers,
including waiver to
maintain income yield)
 

Government Fund

   

0.45

%

   

0.35

%

   

0.35

%

 

PURCHASING AND SELLING FUND SHARES

The following sections tell you how to purchase and sell (sometimes called "redeem") Wealth Class shares of the Fund. Please note that prior to May 31, 2025, Wealth Class Shares were known as Sweep Class Shares. The Fund offers Wealth Class shares only to financial institutions and intermediaries for their own or their customers' accounts.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.


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HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted.

Authorized financial institutions and intermediaries may purchase Wealth Class shares of the Fund. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Fund's wire agent by the close of business on the same day the order is placed. However, in certain circumstances, the Fund, at its discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Fund's procedures and applicable law. The Fund reserves the right to refuse any purchase requests, particularly those that the Fund reasonably believes may not be in the best interest of the Fund or its shareholders and could adversely affect the Fund or its operations.

You may be eligible to purchase other classes of shares of the Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.

The Fund calculates its net asset value (NAV) per share once each Business Day as of 4:30 p.m. Eastern Time. For you to receive the current Business Day's NAV per share, generally the Fund (or an authorized agent) must receive your purchase order in proper form on the trade date before the Fund's order cut-off time of 4:30 p.m. Eastern Time. The Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase or sale requests to these authorized financial institutions at an earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Fund.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Fund in accordance with the Fund's procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Fund. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.

Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, the Fund generally values its investment portfolio using the amortized cost valuation method. The amortized cost valuation method involves valuing a security at its cost on the date of purchase and thereafter (absent unusual circumstances) assuming a constant amortization to maturity of any discount or premium, regardless of the impact of fluctuations in general market rates of interest on the value of the instrument. The amortized cost valuation method is described in greater detail in the Fund's SAI. If this method is determined


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to be unreliable during certain market conditions or for other reasons, the Fund may value its portfolio at market price. Debt securities, such as those held by the Fund, are priced based upon valuations provided by independent, third-party pricing agents. Such values will generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Fund pursuant to Rule 2a-5 under the 1940 Act. The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable.

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of the Fund's shares, often with the intent of earning arbitrage profits. Market timing of the Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing the Fund to incur unwanted taxable gains and forcing the Fund to hold excess levels of cash.

The Board has not adopted policies and procedures on behalf of the Fund with respect to frequent purchases and redemptions of Fund shares by Fund shareholders. Due to its use for liquidity and other purposes, it is the Fund's expectation that the money market fund will be used by certain investors for short-term investment purposes.

Foreign Investors

The Fund does not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in the Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in the Fund. The Fund may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Fund are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.


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The Fund will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Fund, however, reserves the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Fund's overall obligation to deter money laundering under federal law. The Fund has adopted an Anti-Money Laundering Compliance Program designed to prevent the Fund from being used for money laundering or the financing of terrorist activities. In this regard, the Fund reserves the right to: (i) refuse, cancel or rescind any purchase order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of the Fund or in cases when the Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request of governmental or law enforcement authority, you may not receive proceeds of the redemption if the Fund is required to withhold such proceeds.

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Fund receives your request or after the Fund's authorized intermediary receives your request if transmitted to the Fund in accordance with the Fund's procedures and applicable law.

Receiving Your Money

Normally, the Fund will make payment on your redemption request as promptly as possible after they receive your request regardless of the method the Fund uses to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.

Methods Used to Meet Redemption Obligations

The Fund generally pays sale (redemption) proceeds in cash during normal market conditions. To the extent that the Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to generate such cash through the sale of portfolio assets. The Fund operates an interfund lending program that enables the Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help the Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Fund's remaining shareholders), the Fund might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to


15


SEI / PROSPECTUS

sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

The Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Fund may suspend your right to sell your shares back to the Fund if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.

Telephone Transactions

Purchasing and selling Fund shares over the telephone is extremely convenient, but not without risk. The Fund has certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Fund follows these procedures, the Fund will not be responsible for any losses or costs incurred by following telephone instructions that the Fund reasonably believes to be genuine.

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the Fund's shares.

The Fund may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Fund. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Fund to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the


16


SEI / PROSPECTUS

Fund's SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

SERVICE OF FUND SHARES

The Fund has adopted a shareholder services plan and agreement (the Service Plan) with respect to Wealth Class shares that allows such shares to pay service providers a fee in connection with the ongoing servicing of shareholder accounts owning such shares at an annual rate of up to 0.25% of average daily net assets of the Wealth Class shares. The Service Plan provides that shareholder service fees on Wealth Class shares will be paid to SIDCo., which may then be used by SIDCo. to compensate financial intermediaries for providing shareholder services with respect to Wealth Class shares.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Fund can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in the Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.

Additional information regarding the information disclosed on the Portfolio Holdings website and the Fund's policies and procedures on the disclosure of portfolio holdings information is available in the SAI.

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Fund declares dividends daily and distributes its investment income monthly. The Fund makes distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about U.S. federal, state and local income taxes. Below, the Fund has summarized certain important tax issues that affect the Fund and its shareholders. This summary is based on current tax laws, which may change. This summary does not apply to shares held in an individual retirement account or other tax-qualified plans, which are generally not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future.

The Fund has elected and intends to qualify each year for treatment as a regulated investment company (a "RIC") within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). If it meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, the Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.


17


SEI / PROSPECTUS

The Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains.

Because the Fund's income is expected to be derived primarily from interest rather than dividends, no portion of the Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

If the Fund receives business interest income it may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. The Fund's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the Fund's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. The Fund may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in the Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. However, the holding period requirement does not apply to the Fund because it declares interest dividends on a daily basis in an amount equal to at least 90 percent of the Fund's excess section 163(j) interest income and distributes such dividends on a monthly basis. Section 163(j) Interest Dividends, if so designated by the Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (the "IRS").

Each sale of Fund shares may be a taxable event. However, it is not anticipated that you will realize any gain or loss on the sale of your Fund shares because the Fund expects to maintain a $1.00 NAV. Assuming you hold shares as a capital asset, if a sale of shares results in a gain or loss to you, the gain or loss generally will be treated as short-term capital gain or loss if you held the shares 12 months or less, long-term capital gain or loss if you held the shares for longer, except that any capital loss on the sale of the Fund's shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to such Fund shares.

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale of Fund shares).

The Fund (or its administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, the Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, the Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, the Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of the Fund's shares may not be changed after the settlement date of each such sale of the Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their


18


SEI / PROSPECTUS

tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

The Fund's SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Fund's investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Fund. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Fund that you should consider in determining whether to purchase shares of the Fund. The Fund may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Fund and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


19


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The table that follows presents performance information about the Wealth Class shares of the Fund. This information is intended to help you understand the Fund's financial performance for the past five years, or, if shorter, the period of the Fund's operations. Some of this information reflects financial information for a single Fund share. The total returns in the table represent the rate that you would have earned (or lost) on an investment in the Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from the Fund's financial statements, which have been audited by KPMG LLP, the Fund's independent registered public accounting firm. Its report, along with the Fund's financial statements, appears in the Fund's Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS OR PERIOD ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD

    Net Asset
Value,
Beginning
of Year/
Period
  Net
Investment
Income/(Loss)*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total
from
Operations
  Dividends
from Net
Investment
Income
  Distributions
from
Realized
Capital
Gains
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of Year/
Period
  Total
Return†
  Net Assets
End of Year/
Period
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets(1)
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
 

Government Fund

     

WEALTH CLASS

 
 

2025

   

$

1.00

   

$

0.05

   

$

   

$

0.05

   

$

(0.05

)

 

$

(3)

 

$

(0.05

)

 

$

1.00

     

4.80

%

 

$

2,032,659

     

0.35

%

   

0.46

%

   

4.77

%

 
 

2024

     

1.00

     

0.05

     

     

0.05

     

(0.05

)

   

     

(0.05

)

   

1.00

     

4.76

     

4,513,574

     

0.35

     

0.45

     

4.67

   
 

2023

(2)

   

1.00

     

(3)

   

     

     

(3)

   

     

(3)

   

1.00

     

0.14

     

5,188,157

     

0.35

     

0.44

     

3.74

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

(1) The Distributor and/or Administrator have voluntarily agreed to waive and reduce its fee and/or reimburse certain expenses of the Fund in order to limit the one-day net income yield of the Fund to not less than 0.01% of the Fund's average daily net assets of the share class. Had these waivers been excluded the ratio would have been at the expense ratio cap figure. See Note 3 to the financial statements for expense limitation figures.

(2) Commenced operations on January 17, 2023. All ratios for the period have been annualized.

(3) Amount represents less than $0.005 per share.

Amounts designated as "—" are zero or have been rounded to zero.


20


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Fund is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Fund's investments is available in the Fund's annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Fund's annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the Fund's annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, Fund Financial Statements, or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail: Write to the Fund at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

CMS-F-035 (05/25)

seic.com


May 31, 2025

PROSPECTUS

SEI Daily Income Trust

Institutional Shares
(formerly Class F Shares)

•  Government Fund (SEOXX)

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The Fund is not available for purchase in all states. You may purchase Fund shares only if they are registered in your state.

seic.com


SEI / PROSPECTUS

SEI DAILY INCOME TRUST

About This Prospectus

FUND SUMMARY

 

GOVERNMENT FUND

   

1

   

Purchase and Sale of Fund Shares

   

5

   

Tax Information

   

5

   
Payments to Broker-Dealers and Other
Financial Intermediaries
   

5

   

MORE INFORMATION ABOUT INVESTMENTS

   

5

   

MORE INFORMATION ABOUT RISKS

   

6

   

Risk Information Common to the Fund

   

6

   

More Information About Principal Risks

   

6

   

GLOBAL ASSET ALLOCATION

   

10

   

INVESTMENT ADVISER

   

10

   

SUB-ADVISER

   

12

   

INFORMATION ABOUT VOLUNTARY FEE WAIVERS

   

12

 

PURCHASING AND SELLING FUND SHARES

   

12

   

HOW TO PURCHASE FUND SHARES

   

13

   

Pricing of Fund Shares

   

14

   
Frequent Purchases and Redemptions of
Fund Shares
   

14

   

Foreign Investors

   

15

   
Customer Identification and Verification and
Anti-Money Laundering Program
   

15

   

HOW TO SELL YOUR FUND SHARES

   

16

   

Receiving Your Money

   

16

   

Methods Used to Meet Redemption Obligations

   

16

   

Low Balance Redemptions

   

16

   

Suspension of Your Right to Sell Your Shares

   

16

   

Telephone Transactions

   

17

   

Unclaimed Property

   

17

   

DISTRIBUTION OF FUND SHARES

   

17

   
DISCLOSURE OF PORTFOLIO HOLDINGS
INFORMATION
   

17

   

DIVIDENDS, DISTRIBUTIONS AND TAXES

   

18

   

Dividends and Distributions

   

18

   

Taxes

   

18

   

ADDITIONAL INFORMATION

   

19

   

FINANCIAL HIGHLIGHTS

   

20

   
HOW TO OBTAIN MORE INFORMATION ABOUT
SEI DAILY INCOME TRUST
 

Back Cover

 

SEI / PROSPECTUS

GOVERNMENT FUND

Fund Summary

Investment Goal

Preserve principal value and maintain a high degree of liquidity while providing current income.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

ANNUAL FUND OPERATING EXPENSES

(expenses that you pay each year as a percentage of the value of your investment)

 

Institutional Shares

 

Management Fees

   

0.07

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.15

%

 

Total Annual Fund Operating Expenses

   

0.22

%

 

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Government Fund — Institutional Shares

 

$

23

   

$

71

   

$

124

   

$

280

   

Principal Investment Strategies

Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash, government securities and/or repurchase agreements that are collateralized fully with cash or government securities. Government securities are obligations issued or guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities, including obligations issued by private issuers that are guaranteed as to principal or interest by the U.S. government or its agencies or instrumentalities.

Using a top-down strategy and bottom-up security selection, the sub-adviser (the Sub-Adviser) seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.


1


SEI / PROSPECTUS

The Fund values its securities using amortized cost and seeks to maintain a stable net asset value (NAV) of $1.00 per share.

Principal Risks

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.

Interest Rate Risk — The risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund.

Cash Management Risk — The value of the investments held by the Fund for cash management purposes may be affected by market risks, changing interest rates and by changes in credit ratings of the investments. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.

Repurchase Agreement Risk — Although repurchase agreement transactions must be fully collateralized at all times, they generally create leverage and involve some counterparty risk to the Fund whereby a defaulting counterparty could delay or prevent the Fund's recovery of collateral.


2


SEI / PROSPECTUS

Redemption Risk — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the seller would like. The seller may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

Opportunity Risk — The risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in other investments.

An investment in the Fund is not a bank deposit nor is it insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to maintain a constant price per share of $1.00, you may lose money by investing in the Fund. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing the Fund's average annual returns for 1, 5 and 10 years, and since the Fund's inception. The performance information shown is based on full calendar years. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

  Best Quarter: 1.29% (12/31/23)
Worst Quarter: 0.00% (03/31/21)
The Fund's Institutional shares total return from January 1, 2025 to March 31, 2025 was 1.04%.
 


3


SEI / PROSPECTUS

Average Annual Total Returns (for the periods ended December 31, 2024)

Institutional Shares

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(10/27/1995)
 

Government Fund

   

5.03

%

   

2.29

%

   

1.59

%

   

2.32

%

 

Please call 1-800-DIAL-SEI to obtain the Fund's current 7-day yield. Additional information about SEI's money market funds is available on our website at http://www.seic.com/holdings.

Management

Investment Adviser and Portfolio Managers. SEI Investments Management Corporation

Portfolio Manager

 

Experience with the Fund

 

Title with Adviser

 

Richard A. Bamford

 

Since 2014

 

Portfolio Manager

 

Anthony Karaminas, CFA

 

Since 2022

 

Portfolio Manager, Head of Sub-Advised Fixed Income

 

Philip Terrenzio, CFA

 

Since 2022

 

Assistant Portfolio Manager

 

Sub-Adviser. BlackRock Advisors, LLC


4


SEI / PROSPECTUS

Purchase and Sale of Fund Shares

The minimum initial investment for Institutional shares is $100,000 with minimum subsequent investments of $1,000. You may purchase and redeem shares of the Fund on any day that the New York Stock Exchange (NYSE) is open for business (a Business Day). However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted. You may sell your Fund shares by contacting your authorized financial institution or intermediary directly. Authorized financial institutions and intermediaries may redeem Fund shares on behalf of their clients by contacting the Fund's transfer agent (the Transfer Agent) or the Fund's authorized agent, using certain SEI Investments Company (SEI) or third party systems or by calling 1-800-858-7233, as applicable.

Tax Information

The distributions made by the Fund are taxable and will be taxed as ordinary income or capital gains. If you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account, you will generally not be subject to federal taxation on Fund distributions until you begin receiving distributions from your tax-deferred arrangement. You should consult your tax advisor regarding the rules governing your tax-deferred arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

MORE INFORMATION ABOUT INVESTMENTS

The Fund is a mutual fund. A mutual fund pools shareholders' money and, using professional investment managers, invests it in securities and certain other instruments.

The Fund has its own investment goal and strategies for reaching that goal. The Fund's assets are managed under the direction of SEI Investments Management Corporation (SIMC) and one or more Sub-Advisers (each, a Sub-Adviser) who manage portions of the Fund's assets in a way that they believe will help the Fund achieve its investment goal. SIMC acts as "manager of managers" for the Fund and attempts to ensure that the Sub-Adviser complies with the Fund's investment policies and guidelines. SIMC also recommends the appointment of additional or replacement sub-advisers to the Board.

This prospectus describes the Fund's principal investment strategies. Under normal circumstances, the Fund will invest at least 99.5% of its net assets (plus the amount of any borrowings for investment purposes) in government securities.

The investments and strategies described in this prospectus are those that the Sub-Adviser uses under normal conditions. For temporary defensive or liquidity purposes during unusual economic or market conditions, the Fund may invest up to 100% of its assets in short-term obligations, cash, money market instruments, repurchase agreements and other short-term obligations that may not ordinarily be consistent with the Fund's objectives, which may impair the Fund's ability to achieve its investment goal. The Fund will do so only if SIMC or a Sub-Adviser believes that the risk of loss outweighs the opportunity for higher taxable income.


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Of course, there is no guarantee that the Fund will achieve its investment goal. Although not expected to be a component of the Fund's principal investment strategies, the Fund may lend its securities to certain financial institutions in an attempt to earn additional income.

MORE INFORMATION ABOUT RISKS

Risk Information Common to the Fund

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. SIMC and the Sub-Adviser, as applicable, make judgments about the securities markets, the economy and companies, but these judgments may not anticipate actual market movements or the impact of economic conditions on company performance. You could lose money on your investment in the Fund, just as you could with other investments.

A Fund share is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund is managed to maintain a constant price per share of $1.00, it cannot guarantee it will do so, and it is possible to lose money by investing in the Fund.

The value of your investment in the Fund is based on the market prices of the securities the Fund holds. These prices change daily due to economic and other events that affect securities markets generally, as well as those that affect particular companies and other issuers. These price movements, sometimes called volatility, may be greater or lesser depending on the types of securities the Fund owns and the markets in which those securities trade. The effect on the Fund's share price of a change in the value of a single security will depend on how widely the Fund diversifies its holdings.

More Information About Principal Risks

The following descriptions provide additional information about some of the risks of investing in the Fund:

Cash Management — The value of the investments held by the Fund for cash management can fluctuate. These investments are subject to risk, including market, interest rate and credit risk. To the extent that the Fund has any uninvested cash, the Fund would be subject to credit risk with respect to the depository institution holding the cash. If the Fund holds uninvested cash, the Fund will not earn income on the cash. During such periods, it may be more difficult for the Fund to achieve its investment objective.

Commercial Paper — Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

Credit — Credit risk is the risk that a decline in the credit quality of an investment could cause the Fund to lose money. Credit quality risk is the risk of a decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security, which can cause the price of a security to decrease. Although the Fund invests primarily in investment grade securities, the Fund could lose money if the issuer or guarantor of a portfolio security or a counterparty to a derivative contract fails to make timely payment or otherwise honor its obligations. Additionally, if the Fund has uninvested cash, the Fund is subject to the risk that the depository institution holding the uninvested cash will be unable to repay the cash held.


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Current Market Conditions Risk — Current market conditions risk is the risk that a particular investment, or shares of the Fund in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Fund's investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If any geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Fund's assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. Advancements in technology may also adversely impact markets and the overall performance of the Fund. These events, and any other future events, may adversely affect the prices and liquidity of the Fund's investments and could result in disruptions in the trading markets.

Extension — The Fund's investments in fixed income securities are subject to extension risk. Generally, rising interest rates tend to extend the duration of fixed income securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Fund may exhibit additional volatility.

Fixed Income Market — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. Fixed income securities may have fixed-, variable- or floating-rates. There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates. Also, longer-term securities are generally more sensitive to changes in the level of interest rates, so the average maturity or duration of these securities affects risk. Changes in government policy, including the Federal Reserve's decisions with respect to raising interest rates or terminating certain programs such as quantitative easing, could increase the risk that interest rates will rise. Rising interest rates may, in turn, increase volatility and reduce liquidity in the fixed income markets, and result in a decline in the value of the fixed income investments held by the Fund. These risks may be heightened in a low interest rate environment. In addition, reductions in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. As a result of these conditions, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.


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Interest Rate — Interest rate risk is the risk that the Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, the Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. The Fund could even have a negative yield (i.e., it may lose money on an operating basis) during a lower interest rate environment. This could impair the Fund's ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by the Fund. As a result, it is possible that the Fund would, during these conditions, maintain a substantial portion of its assets in cash, on which it may earn little, if any, income. In general, a fund with a longer average portfolio duration will be more sensitive to risks associated with changing interest rates than a fund with a shorter average portfolio duration.

Leverage — Certain Fund transactions, such as reverse repurchase agreements, may give rise to a form of leverage. The use of leverage can amplify the effects of market volatility on the Fund's share price and make the Fund's returns more volatile. This is because leverage tends to exaggerate the effect of any increase or decrease in the value of the Fund's portfolio securities. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet the applicable requirements of the 1940 Act and the rules thereunder.

Liquidity — Liquidity risk exists when particular investments are difficult to purchase or sell. The market for certain investments may become illiquid due to specific adverse changes in the condition of a particular issuer or under adverse market or economic conditions independent of the issuer. The Fund's investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Market — Market risk is the risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the bond market as a whole.

Municipal Securities — Municipal securities, like other fixed income securities, rise and fall in value in response to economic and market factors, primarily changes in interest rates, and actual or perceived credit quality. Rising interest rates will generally cause municipal securities to decline in value. Longer-term securities respond more sharply to interest rate changes than do shorter-term securities. A municipal security will also lose value if, due to rating downgrades or other factors, there are concerns about the issuer's current or future ability to make principal or interest payments. State and local governments rely on taxes and, to some extent, revenues from private projects financed by municipal securities, to pay interest and principal on municipal debt. Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to repay principal and to make interest payments on securities owned by the Fund. Actual or perceived erosion of the creditworthiness of municipal issuers may reduce the value of the Fund's holdings. As a result, the Fund will be more susceptible to factors which adversely affect issuers of municipal obligations than a mutual fund which does not have as great a concentration in municipal obligations. Also, there may be economic or political changes that impact the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Fund. Any changes in the financial condition of municipal issuers also may adversely affect the value of the Fund's securities.


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Opportunity — The Fund may miss out on an investment opportunity because the assets necessary for it to take advantage of the opportunity are tied up in other investments.

Prepayment — The Fund's investments in fixed income securities are subject to prepayment risk. In a declining interest rate environment, fixed income securities with stated interest rates may have their principal paid earlier than expected. This may result in the Fund having to reinvest that money at lower prevailing interest rates, which can reduce the returns of the Fund.

Reallocation — In addition to managing the Fund, SIMC constructs and maintains strategies (Strategies) for certain clients, and the Fund is designed in part to implement those Strategies. Within the Strategies, SIMC periodically adjusts the target allocations of the Fund to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund. Because a significant portion of the assets in the Fund may be composed of investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could in certain cases have a detrimental effect on a Fund that is being materially reallocated, including by increasing portfolio turnover (and related transactions costs), disrupting the portfolio management strategy, and causing the Fund to incur taxable gains. SIMC seeks to manage the impact to the Fund resulting from reallocations in the Strategies.

Redemption — The Fund may experience periods of heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. This could have a significant adverse effect on the Fund's ability to maintain a stable $1.00 share price, and, in extreme circumstances, could cause the Fund to suspend redemptions and liquidate completely.

Repurchase Agreement — A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. The repurchase agreements entered into by the Fund will provide that the underlying collateral at all times shall have a value equal to at least 102% of the resale price stated in the agreement. If a money market fund decides to "look through" a repurchase agreement counterparty issuer to the underlying collateral for diversification purposes, the collateral posted by the counterparty will be required to be cash items or U.S. Government securities. Further, the money market funds will evaluate the creditworthiness of the counterparty before "look through" treatment. Under all repurchase agreements entered into by the Fund, the custodian or its agent must take possession of the underlying collateral. In the event of a default or bankruptcy by a selling financial institution, the Fund will seek to liquidate such collateral. To the extent that proceeds from any sale upon a default of the obligation to repurchase were less than the repurchase price, the Fund could suffer a loss.

U.S. Government Securities — U.S. Government securities are obligations of, or guaranteed by, the U.S. Government, its agencies or government-sponsored entities. U.S. Government securities include issues by non-governmental entities (such as financial institutions) that carry direct guarantees from U.S. Government agencies as part of government initiatives in response to a market crisis or otherwise. Although the U.S. Government guarantees principal and interest payments on securities issued by the U.S. Government and some of its agencies, such as securities issued by the Government National Mortgage Association, this guarantee does not apply to losses resulting from declines in the market value of these securities. U.S. Government securities include zero coupon securities that make payments of interest and principal only upon maturity, which tend to be subject to greater volatility than interest bearing securities with comparable


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maturities. Some of the U.S. Government securities that the Fund may hold are not guaranteed or backed by the full faith and credit of the U.S. Government, such as those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. The maximum potential liability of the issuers of some U.S. Government securities may greatly exceed their current resources, including any legal right to support from the U.S. Government. Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates.

GLOBAL ASSET ALLOCATION

The Fund and other funds managed by SIMC are used within Strategies that SIMC constructs and maintains for certain clients (Strategy Clients). The Fund is designed in part to be used as a component within those Strategies. The degree to which a Strategy Client's portfolio is invested in the particular market segments and/or asset classes represented by the Fund and other funds varies. SIMC believes that an investment in a portfolio of funds representing a range of asset classes as part of a Strategy may reduce the Strategy's overall level of volatility.

Within the Strategies, SIMC periodically adjusts the target allocations of the Fund and other funds to ensure that the appropriate mix of assets is in place. SIMC also may create new Strategies that reflect significant changes in allocation of the Fund and other funds. Because a significant portion of the assets in the Fund and other funds may be attributable to investors in Strategies controlled or influenced by SIMC, this reallocation activity could result in significant purchase or redemption activity in the Fund. Although reallocations are intended to benefit investors that invest in the Fund through the Strategies, they could, in certain cases, have a detrimental effect on the Fund. Such detrimental effects could include: transaction costs, capital gains and other expenses resulting from an increase in portfolio turnover; and disruptions to the portfolio management strategy, such as foregone investment opportunities or the inopportune sale of securities to facilitate redemption.

INVESTMENT ADVISER

SIMC, a Securities and Exchange Commission (SEC) registered investment adviser, located at One Freedom Valley Drive, Oaks, Pennsylvania 19456, serves as the investment adviser to the Fund. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management.

The Fund is managed by SIMC and one or more Sub-Advisers. SIMC acts as a "manager of managers" of the Fund and, subject to the oversight of the Board, is responsible for:

— researching and recommending to the Board, the hiring, termination and replacement of Sub-Advisers;

— allocating, on a continuous basis, assets of the Fund among the Sub-Advisers (to the extent the Fund has more than one Sub-Adviser);

— monitoring and evaluating the Sub-Adviser's performance;

— overseeing the Sub-Adviser to ensure compliance with the Fund's investment objectives, policies and restrictions; and

— monitoring the Sub-Adviser's adherence to its investment style.

SIMC acts as manager of managers for the Fund pursuant to an exemptive order obtained from the SEC. The exemptive order permits SIMC, with the approval of the Board, to retain unaffiliated sub-advisers for the


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Fund without submitting the sub-advisory agreements to a vote of the Fund's shareholders. Among other things, the exemptive order permits the non-disclosure of amounts payable by SIMC under a particular sub-advisory agreement, but instead requires SIMC to disclose the aggregate amount of sub-advisory fees paid by SIMC with respect to the Fund. As a manager of managers, SIMC is ultimately responsible for the investment performance of the Fund. The Board supervises SIMC and the Sub-Adviser and establishes policies that they must follow in their management activities.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

A discussion regarding the basis for the Board's approval of the Fund's investment advisory and sub-advisory agreements is available on the Fund's website, www.seic.com/fundprospectuses, or online at sec.gov. The Fund's Semi-Annual Form N-CSR covers the period of February 1, 2024 through July 31, 2024, and the Fund's Annual Form N-CSR covers the period of February 1, 2024 through January 31, 2025.

The following portfolio managers are primarily responsible for the management and oversight of the Fund, as described above.

Richard A. Bamford serves as Portfolio Manager for the Fund. Mr. Bamford serves as a Senior Portfolio Manager for the Traditional Strategies Group within the Investment Management Unit. Mr. Bamford is responsible for high yield, emerging market, municipal and taxable fixed-income portfolios, as well as leading the investment-grade debt and municipal bonds portfolios. Mr. Bamford's duties include manager analysis and selection, strategy development and enhancement as well as investment research. Mr. Bamford has over 23 years of experience in investment management. Prior to joining SEI in 1999, Mr. Bamford worked as a Municipal Credit Analyst for Vanguard. Mr. Bamford received a Bachelor of Science in Economics/Finance and Accounting from the University of Scranton and a Master of Business Administration with a concentration in Finance from St. Joseph's University.

Anthony Karaminas, CFA, serves as Portfolio Manager for the Fund. Mr. Karaminas serves as Head of Sub-Advisory Fixed Income & Multi-Asset, within the Investment Management Unit. Mr. Karaminas is responsible for Portfolio Management leadership and oversight duties for the entirety of the Sub-Advisory Fixed Income & Multi-Asset Business. Prior to joining SEI, he was an Associate Portfolio Manager/Analyst within the Multi-Manager Solution team at UBS Asset Management. Previously, Mr. Karaminas held the role of Sector Head of Global Fixed Income and Global High Yield Funds Research at S&P Capital IQ. Mr. Karaminas was also a Senior Analyst at Goldman Sachs JB Were. Mr. Karaminas received a Bachelor of Business (with honors) from Swinburne University in Melbourne, Australia. He is a CFA charterholder and a member of the CFA Institute.

Philip Terrenzio, CFA serves as Portfolio Manager for the Fund. Mr. Terrenzio serves as an assistant portfolio manager for the Fixed Income Team within the Investment Management Unit. He monitors portfolio exposures, portfolio risks, performance attribution, and daily cash flows for money market, liability driven investing, core, high yield and government funds. Prior to joining the Investment Management Unit, Mr. Terrenzio started his career at SEI in 2013 as a mutual fund accountant and supervisor within SEI's Investment Management Services where he worked on the operations and administration of SEI's mutual funds. Mr. Terrenzio earned a Bachelor of Science in Business Administration with a major in Finance from Saint Joseph's University, graduating cum laude, and is a CFA charterholder.


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SUB-ADVISER

The Sub-Adviser makes investment decisions for the assets it manages and continuously reviews, supervises and administers its investment program. The Sub-Adviser must also operate within the Fund's investment objective, restrictions and policies, and within specific guidelines and instructions established by SIMC from time to time. The Sub-Adviser is responsible for managing only the portion of the Fund allocated to it by SIMC. SIMC pays the Sub-Adviser out of the investment advisory fees it receives (as described below).

BlackRock Advisors, LLC: BlackRock Advisors, LLC (BAL), located at 100 Bellevue Parkway, Wilmington, Delaware 19809, an indirect, wholly-owned subsidiary of BlackRock, Inc. serves as a Sub-Adviser to the Fund. BAL was organized in 1994 to perform advisory services for investment companies. As of December 31, 2024, assets under management were approximately $11.58 million for BAL.

SIMC has registered with the National Futures Association as a "commodity pool operator" under the Commodities Exchange Act (CEA) with respect to certain products not included in this prospectus. SIMC has claimed, on behalf of the Fund in accordance with CFTC Regulation 4.5 and other relevant rules, regulations and no-action relief, an exclusion from the definition of the term "commodity pool operator" under the CEA. SIMC is therefore not subject to regulation as a pool operator under the CEA with regard to the operation of the Fund.

The Fund's Statement of Additional Information (SAI) provides additional information about the portfolio managers' compensation, other accounts they manage and their ownership, if any, of Fund shares.

Information About Voluntary Fee Waivers

The total annual fund operating expenses of the Fund's Institutional Class shares for the most recent fiscal year were, in some cases, less than the amounts shown in the Annual Fund Operating Expenses table in the Fund Summary section because, among other reasons, the Fund's adviser, the Fund's administrator and/or the Fund's distributor waived and/or reimbursed a portion of their fees in order to keep total direct annual Fund operating expenses (exclusive of interest from borrowings, brokerage commissions, Trustee fees, taxes, costs associated with litigation-or tax-related services and extraordinary expenses not incurred in the ordinary course of the Fund's business) at a specified level. Certain amounts were waived voluntarily. With respect to such voluntary waivers, the Fund's adviser, the Fund's administrator and/or the Fund's distributor may discontinue all or part of these waivers and/or reimbursements at any time. With these voluntary fee waivers, the actual total annual Fund operating expenses of the Institutional Class shares of the Fund for the most recent fiscal year (ended January 31, 2025) were as follows:

Fund Name — Institutional Class Shares   Total Annual Fund
Operating Expenses
(before fee waivers)
  Total Annual Fund
Operating Expenses
(after fee waivers,
but excluding
waiver to maintain
income yield)
  Total Annual Fund
Operating Expenses
(after fee waivers,
including waiver
to maintain
income yield)
 

Government Fund

   

0.22

%

   

0.20

%

   

0.20

%

 

PURCHASING AND SELLING FUND SHARES

The following sections tell you how to purchase and sell (sometimes called "redeem") shares of the Fund. Please note that prior to January 17, 2023, Institutional shares were known as Class F shares. The Fund offers


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Institutional shares only to financial institutions and intermediaries for their own or their customers' accounts.

For information on how to open an account and set up procedures for placing transactions, call 1-800-DIAL-SEI.

Institutional shares may only be purchased by:

•  bank trust departments or other financial firms, for the benefit of their clients, that have entered into an agreement with the Fund's Distributor, or authorized affiliates, permitting the purchase of Institutional Shares;

•  institutions, such as defined benefit plans, defined contribution plans, healthcare plans and board designated funds, insurance operating funds, foundations, endowments, public plans and Taft-Hartley plans, subject to a minimum initial investment of least $25,000,000 in Class Y and Institutional shares of the SEI Funds;

•  clients that have entered into a direct bilateral investment advisory agreement with SIMC with respect to their assets invested in the Funds; and

•  other SEI mutual funds and pooled investment products managed by SIMC.

In the event an Institutional shareholder no longer meets the eligibility requirements to purchase Institutional shares (as noted in this section), the SEI Funds (or their delegate) may, in their discretion, elect to convert such shareholder's Institutional shares into a class of shares of the same Fund(s) for which such shareholder does meet the eligibility requirements. In all cases, if a client meets the eligibility requirements for more than one other class of shares, then such client's Institutional shares shall be convertible into shares of the class having the lowest total annual operating expenses (disregarding fee waivers) for which such clients meet the eligibility requirements.

HOW TO PURCHASE FUND SHARES

Fund shares may be purchased on any Business Day. However, the Fund may close early on Business Days that the Bond Market Association recommends the bond markets close early. In addition, Fund shares cannot be purchased by Federal Reserve wire on federal holidays on which wire transfers are restricted.

Authorized financial institutions and intermediaries may purchase Institutional shares of the Fund. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. Generally, cash investments must be transmitted or delivered in federal funds to the Fund's wire agent by the close of business on the same day the order is placed. However, in certain circumstances, the Fund, at its discretion, may allow purchases to settle (i.e., receive final payment) at a later date in accordance with the Fund's procedures and applicable law. The Fund reserves the right to refuse any purchase requests, particularly those that the Fund reasonably believes may not be in the best interest of the Fund or its shareholders and could adversely affect the Fund or its operations.

You may be eligible to purchase other classes of shares of the Fund. However, you may only purchase a class of shares that your financial institution or intermediary sells or services. Your financial institution representative or intermediary can tell you which classes of shares are available to you.


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The Fund calculates its net asset value (NAV) per share once each Business Day as of 4:30 p.m. Eastern Time. For you to receive the current Business Day's NAV per share, generally the Fund (or an authorized agent) must receive your purchase order in proper form on the trade date before the Fund's order cut-off time of 4:30 p.m. Eastern Time. The Fund will not accept orders that request a particular day or price for the transaction or any other special conditions.

When you purchase or sell Fund shares through certain authorized financial institutions, you may have to transmit your purchase or sale requests to these authorized financial institutions at an earlier time for your transaction to become effective that day. This allows these authorized financial institutions time to process your requests and transmit them to the Fund.

Certain other intermediaries, including certain broker-dealers and shareholder organizations, are authorized to accept purchase and redemption requests for Fund shares. These requests are executed at the next determined NAV per share after the intermediary receives the request if transmitted to the Fund in accordance with the Fund's procedures and applicable law. These authorized intermediaries are responsible for transmitting requests and delivering funds on a timely basis.

You will have to follow the procedures of your financial institution or intermediary for transacting with the Fund. You may be charged a fee for purchasing and/or redeeming Fund shares by your financial institution or intermediary.

Pricing of Fund Shares

NAV for one Fund share is the value of that share's portion of the net assets of the Fund. In calculating NAV, the Fund generally values its investment portfolio using the amortized cost valuation method. The amortized cost valuation method involves valuing a security at its cost on the date of purchase and thereafter (absent unusual circumstances) assuming a constant amortization to maturity of any discount or premium, regardless of the impact of fluctuations in general market rates of interest on the value of the instrument. The amortized cost valuation method is described in greater detail in the Fund's SAI. If this method is determined to be unreliable during certain market conditions or for other reasons, the Fund may value its portfolio at market price. Debt securities, such as those held by the Fund, are priced based upon valuations provided by independent, third-party pricing agents. Such values will generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Fund pursuant to Rule 2a-5 under the 1940 Act. The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable.

Frequent Purchases and Redemptions of Fund Shares

"Market timing" refers to a pattern of frequent purchases and sales of the Fund's shares, often with the intent of earning arbitrage profits. Market timing of the Fund could harm other shareholders in various ways, including by diluting the value of the shareholders' holdings, increasing Fund transaction costs, disrupting the portfolio management strategy, causing the Fund to incur unwanted taxable gains and forcing the Fund to hold excess levels of cash.


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The Board has not adopted policies and procedures on behalf of the Fund with respect to frequent purchases and redemptions of Fund shares by Fund shareholders. Due to its use for liquidity and other purposes, it is the Fund's expectation that the money market fund will be used by certain investors for short-term investment purposes.

Foreign Investors

The Fund does not generally accept investments by non-U.S. persons. Non-U.S. persons may be permitted to invest in the Fund subject to the satisfaction of enhanced due diligence. Prospective investors should consult their own financial institution or financial intermediary regarding their eligibility to invest in the Fund. The Fund may rely on representations from such financial institutions and financial intermediaries regarding their investor eligibility.

Customer Identification and Verification and Anti-Money Laundering Program

Federal law requires all financial institutions to obtain, verify and record information that identifies each customer who opens an account. Accounts for the Fund are generally opened through other financial institutions or intermediaries. When you open your account through your financial institution or intermediary, you will have to provide your name, address, date of birth, identification number and other information that will allow the financial institution or intermediary to identify you. When you open an account on behalf of an entity you will have to provide formation documents and identifying information about beneficial owner(s) and controlling parties. This information is subject to verification by the financial institution or intermediary to ensure the identity of all persons opening an account.

Your financial institution or intermediary is required by law to reject your new account application if the required identifying information is not provided. Your financial institution or intermediary may contact you in an attempt to collect any missing information required on the application, and your application may be rejected if they are unable to obtain this information. In certain instances, your financial institution or intermediary may be required to collect documents to establish and verify your identity.

The Fund will accept investments and your order will be processed at the next determined NAV after receipt of your application in proper form (which includes receipt of all identifying information required on the application). The Fund, however, reserves the right to close and/or liquidate your account at the then-current day's price if the financial institution or intermediary through which you open your account is unable to verify your identity. As a result, you may be subject to a gain or loss on Fund shares as well as to corresponding tax consequences.

Customer identification and verification are part of the Fund's overall obligation to deter money laundering under federal law. The Fund has adopted an Anti-Money Laundering Compliance Program designed to prevent the Fund from being used for money laundering or the financing of terrorist activities. In this regard, the Fund reserves the right to: (i) refuse, cancel or rescind any purchase order; (ii) freeze any account and/or suspend account services; or (iii) involuntarily close your account in cases of threatening conduct or suspected fraudulent or illegal activity. These actions will be taken when, in the sole discretion of Fund management, they are deemed to be in the best interest of the Fund or in cases when the Fund is requested or compelled to do so by governmental or law enforcement authority. If your account is closed at the request of governmental or law enforcement authority, you may not receive proceeds of the redemption if the Fund is required to withhold such proceeds.


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SEI / PROSPECTUS

HOW TO SELL YOUR FUND SHARES

Authorized financial institutions and intermediaries may sell Fund shares on any Business Day by placing orders with the Transfer Agent or the Fund's authorized agent. Authorized financial institutions and intermediaries that use certain SEI or third party systems may place orders electronically through those systems. Authorized financial institutions and intermediaries may also place orders by calling 1-800-858-7233. For information about how to sell Fund shares through your authorized financial institution or intermediary, you should contact your authorized financial institution or intermediary directly. Your authorized financial institution or intermediary may charge a fee for its services. The sale price of each share will be the next determined NAV after the Fund receives your request or after the Fund's authorized intermediary receives your request if transmitted to the Fund in accordance with the Fund's procedures and applicable law.

Receiving Your Money

Normally, the Fund will make payment on your redemption request as promptly as possible after they receive your request regardless of the method the Fund uses to make such payment, but it may take up to three Business Days. You may arrange for your proceeds to be wired to your bank account.

Methods Used to Meet Redemption Obligations

The Fund generally pays sale (redemption) proceeds in cash during normal market conditions. To the extent that the Fund does not have sufficient cash holdings for redemption proceeds, it will typically seek to generate such cash through the sale of portfolio assets. The Fund operates an interfund lending program that enables the Fund to borrow from another Fund on a temporary basis, which, on a less regular basis, may be used to help the Fund satisfy redemptions.

Under stressed or unusual conditions that make the payment of cash unwise (and for the protection of the Fund's remaining shareholders), the Fund might pay all or part of your redemption proceeds in liquid securities with a market value equal to the redemption price (redemption in kind). Although it is highly unlikely that your shares would ever be redeemed in kind, you would probably have to pay brokerage costs to sell the securities distributed to you, as well as taxes on any capital gains from the sale as with any redemption and you will bear the investment risk of the distributed securities until the distributed securities are sold.

These methods may be used during both normal and stressed market conditions.

Low Balance Redemptions

The Fund (or its delegate) may, in its discretion, and upon reasonable notice, redeem in full a financial institution, intermediary or shareholder that fails to maintain an investment of at least $1,000 in the Fund.

Suspension of Your Right to Sell Your Shares

The Fund may suspend your right to sell your shares back to the Fund if the NYSE restricts trading, the SEC declares an emergency or for other reasons, as permitted by the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder. More information about such suspension can be found in the SAI.


16


SEI / PROSPECTUS

Telephone Transactions

Purchasing and selling Fund shares over the telephone is extremely convenient, but not without risk. The Fund has certain safeguards and procedures to confirm the identity of callers and the authenticity of instructions. If the Fund follows these procedures, the Fund will not be responsible for any losses or costs incurred by following telephone instructions that the Fund reasonably believes to be genuine.

Unclaimed Property

Each state has unclaimed property rules that generally provide for escheatment (or transfer) to the state of unclaimed property, including mutual fund shares, under various circumstances. Such circumstances include inactivity (i.e., no owner-initiated contact for a certain period), returned mail (i.e., when mail sent to a shareholder is returned by the post office, or "RPO," as undeliverable), or a combination of both inactivity and returned mail. More information on unclaimed property and how to maintain an active account is available through your state.

If you are a resident of certain states, you may designate a representative to receive notice of the potential escheatment of your property. The designated representative would not have any rights to your shares. Please contact your financial intermediary for additional information.

DISTRIBUTION OF FUND SHARES

SEI Investments Distribution Co. (SIDCo. or the Distributor) is the distributor of the Fund's shares.

The Fund may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors (Financial Advisors) who provide their clients with advice and services in connection with their investments in the Fund. Many Financial Advisors are also associated with broker-dealer firms. SIMC and its affiliates, at their expense, may compensate these broker-dealers or other financial institutions for marketing, promotional or other services. These payments may be significant to these firms and may create an incentive for the firm or its associated Financial Advisors to recommend or offer shares of the Fund to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources. SIMC and its affiliates may also provide other products and services to Financial Advisors. For additional information, please see the Fund's SAI. You can also ask your Financial Advisor about any payments it receives from SIMC and its affiliates, as well as about fees it charges.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

Portfolio holdings information for the Fund can be obtained on the Internet at the following address: http://www.seic.com/holdings (the Portfolio Holdings Website). Five calendar days after each month end, a list of all portfolio holdings in the Fund as of the end of such month shall be made available on the Portfolio Holdings Website. Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person who requests it, through electronic or other means. The portfolio holdings information placed on the Portfolio Holdings Website shall remain there until the fifth calendar day of the thirteenth month after the date of which the data relates, at which time it will be permanently removed from the site.

Additional information regarding the information disclosed on the Portfolio Holdings website and the Fund's policies and procedures on the disclosure of portfolio holdings information is available in the SAI.


17


SEI / PROSPECTUS

DIVIDENDS, DISTRIBUTIONS AND TAXES

Dividends and Distributions

The Fund declares dividends daily and distributes its investment income monthly. The Fund makes distributions of capital gains, if any, at least annually.

You will receive dividends and distributions in cash unless otherwise stated.

Taxes

Please consult your tax advisor regarding your specific questions about U.S. federal, state and local income taxes. Below, the Fund has summarized certain important tax issues that affect the Fund and its shareholders. This summary is based on current tax laws, which may change. This summary does not apply to shares held in an individual retirement account or other tax-qualified plans, which are generally not subject to current tax. Transactions relating to shares held in such accounts may, however, be taxable at some time in the future.

The Fund has elected and intends to qualify each year for treatment as a regulated investment company (a "RIC") within the meaning of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). If it meets certain minimum distribution requirements, a RIC is not subject to tax at the fund level on income and gains from investments that are timely distributed to shareholders. However, the Fund's failure to qualify as a RIC or to meet minimum distribution requirements would result (if certain relief provisions were not available) in fund-level taxation and, consequently, a reduction in income available for distribution to shareholders.

The Fund intends to distribute substantially all of its net investment income and its net realized capital gains, if any. The dividends and distributions you receive may be subject to federal, state and local taxation, depending upon your tax situation. If so, they are taxable whether or not you reinvest them. Income distributions are generally taxable at ordinary income tax rates and will not qualify for the reduced tax rates on qualified dividend income. Capital gains distributions are generally taxable at the rates applicable to long-term capital gains.

Because the Fund's income is expected to be derived primarily from interest rather than dividends, no portion of the Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

A RIC that receives business interest income may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. A RIC's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the RIC's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. A RIC may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in the Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. However, the holding period requirement does not apply to the Fund because it declares interest dividends on a daily basis in an amount equal to at least 90 percent of the Fund's


18


SEI / PROSPECTUS

excess section 163(j) interest income and distributes such dividends on a monthly basis. Section 163(j) Interest Dividends, if so designated by the Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the Internal Revenue Service (the "IRS").

Each sale of Fund shares may be a taxable event. However, it is not anticipated that you will realize any gain or loss on the sale of your Fund shares because the Fund expects to maintain a $1.00 NAV. Assuming you hold shares as a capital asset, if a sale of shares results in a gain or loss to you, the gain or loss generally will be treated as short-term capital gain or loss if you held the shares 12 months or less, long-term capital gain or loss if you held the shares for longer, except that any capital loss on the sale of the Fund's shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to such Fund shares.

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends and capital gains (including capital gains realized on the sale of Fund shares).

The Fund (or its administrative agent) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, the Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, the Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, the Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of the Fund's shares may not be changed after the settlement date of each such sale of the Fund's shares. Shareholders should consult their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

The Fund's SAI contains more information about taxes.

ADDITIONAL INFORMATION

The Trust enters into contractual arrangements with various parties (including, among others, the Fund's investment adviser, custodian, administrator and transfer agent, accountants and distributor) who provide services to the Fund. Shareholders are not parties to, or intended (or "third-party") beneficiaries of, any of those contractual arrangements, and those contractual arrangements are not intended to create in any individual shareholder or group of shareholders any right to enforce the terms of the contractual arrangements against the service providers or any right to seek any remedy under the contractual arrangements against the service providers, either directly or on behalf of the Trust.

This prospectus and the SAI provide information concerning the Trust and the Fund that you should consider in determining whether to purchase shares of the Fund. The Fund may make changes to this information from time to time. Neither this prospectus, the SAI nor any document filed as an exhibit to the Trust's registration statement, is intended to, nor does it, give rise to an agreement or contract between the Trust or the Fund and any shareholder, or give rise to any contract or other rights in any individual shareholder, group of shareholders or other person other than any rights conferred explicitly (and which may not be waived) by federal or state securities laws.


19


SEI / PROSPECTUS

FINANCIAL HIGHLIGHTS

The tables that follow present performance information about the Institutional shares of the Fund. This information is intended to help you understand the Fund's financial performance for the past five years. Some of this information reflects financial information for a single Fund share. The total returns in the tables represent the rate that you would have earned (or lost) on an investment in the Fund, assuming you reinvested all of your dividends and distributions.

The information below has been derived from the Fund's financial statements, which have been audited by KPMG LLP, the Fund's independent registered public accounting firm. Its report, along with the Fund's financial statements, appears in the Fund's Form N-CSR filing for the fiscal year ending January 31, 2025 and are available upon request, at no charge, by calling 1-800-DIAL-SEI.

FOR THE YEARS ENDED JANUARY 31
FOR A SHARE OUTSTANDING THROUGHOUT EACH YEAR

    Net Asset
Value,
Beginning
of Year/
Period
  Net
Investment
Income/
(Loss)*
  Net
Realized
and
Unrealized
Gains
(Losses)
  Total from
Operations
  Dividends
from Net
Investment
Income
  Distributions
from
Realized
Capital
Gains
  Total
Dividends
and
Distributions
  Net Asset
Value,
End of
Year/Period
  Total
Return†
  Net Assets
End of
Year/Period
($ Thousands)
  Ratio of
Expenses
to Average
Net Assets(1)
  Ratio of
Expenses
to Average
Net Assets
(Excluding
Waivers)
  Ratio of
Net
Investment
Income
to Average
Net Assets
 

Government Fund

     

INSTITUTIONAL CLASS

 
 

2025

   

$

1.00

   

$

0.05

   

$

   

$

0.05

   

$

(0.05

)

 

$

(2)

 

$

(0.05

)

 

$

1.00

     

4.96

%

 

$

3,965,982

     

0.20

%

   

0.23

%

   

4.85

%

 
 

2024

     

1.00

     

0.05

     

     

0.05

     

(0.05

)

   

(2)

   

(0.05

)

   

1.00

     

4.92

     

3,811,460

     

0.20

     

0.20

     

4.81

   
 

2023

(3)

   

1.00

     

0.02

     

     

0.02

     

(0.02

)

   

(2)

   

(0.02

)

   

1.00

     

1.69

     

3,733,579

     

0.19

     

0.45

     

1.51

   
 

2022

     

1.00

     

     

     

     

(2)

   

(2)

   

(2)

   

1.00

     

0.01

     

9,215,975

     

0.06

     

0.44

     

0.01

   
 

2021

     

1.00

     

     

     

     

(2)

   

     

(2)

   

1.00

     

0.23

     

9,461,922

     

0.18

     

0.45

     

0.19

   

* Per share calculations were performed using average shares.

† Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

(1) The Distributor and/or Administrator have voluntarily agreed to waive and reduce its fee and/or reimburse certain expenses of the Fund in order to limit the one-day net income yield of the Fund to not less than 0.01% of the Fund's average daily net assets of the share class. Had these waivers been excluded the ratio would have been at the expense ratio cap figure. See Note 3 to the financial statements for expense limitation figures.

(2) Amount represents less than $0.005 per share.

(3) On January 17, 2023, Class F Shares of the Government Fund were renamed Institutional Class Shares.

Amounts designated as "—" are zero or have been rounded to zero.


20


Investment Adviser

SEI Investments Management Corporation
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Distributor

SEI Investments Distribution Co.
One Freedom Valley Drive
Oaks, Pennsylvania 19456

Legal Counsel

Morgan, Lewis & Bockius LLP
2222 Market Street
Philadelphia, Pennsylvania 19103

More information about the Fund is available without charge through the following:

Statement of Additional Information (SAI)

The SAI dated May 31, 2025, includes detailed information about SEI Daily Income Trust. The SAI is on file with the SEC and is incorporated by reference into this prospectus. This means that the SAI, for legal purposes, is a part of this prospectus.

Annual and Semi-Annual Reports

Additional information about the Fund's investments is available in the Fund's annual and semi-annual reports to shareholders and in Form N-CSR filed with the SEC. In the Fund's annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the Fund's annual and semi-annual financial statements.

To Obtain an SAI, Annual or Semi-Annual Report, or More Information:

By Telephone: Call 1-800-DIAL-SEI
By Mail: Write to the Fund at:
One Freedom Valley Drive
Oaks, Pennsylvania 19456

By Internet: www.seic.com/fundprospectuses

From the SEC: You can also obtain the SAI or the Annual and Semi-Annual Reports, as well as other information about SEI Daily Income Trust, from the EDGAR Database on the SEC's website ("http://www.sec.gov"). You may request documents by mail from the SEC, upon payment of a duplicating fee, by e-mailing the SEC at the following address: [email protected].

SEI Daily Income Trust's Investment Company Act registration number is 811-03451.

SEI-F-036 (05/25)

seic.com


<table border="0" width="100%" cellpadding="0"> <tr> <td colspan="3" valign="bottom"><span>Best Quarter: 2.73% (06/30/20)<br/>Worst Quarter: -1.63% (03/31/20)<br/>The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.19%.</span></td> </tr> </table> SHORT DURATION GOVERNMENT FUND <p>Best Quarter: 3.08% (09/30/24)<br/>Worst Quarter: -2.55% (03/31/22)<br/>The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.62%.</p> <p>Best Quarter: 6.65% (12/31/23)<br/>Worst Quarter: -5.10% (09/30/22)<br/>The Fund's Class F total return (pre-tax) from January 1, 2025 to March 31, 2025 was 2.76%.</p> <p>Best Quarter: 2.75% (06/30/20)<br/>Worst Quarter: -1.61% (03/31/20)<br/>The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.21%.<br/>The Fund's Class Y shares commenced operations on August 31, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Class F shares is shown. The Fund's Class F shares are offered in a separate prospectus. Because Class Y shares are invested in the same portfolio of securities, returns for Class Y shares would have been substantially similar to those of Class F shares, shown here, and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.</p> SHORT DURATION GOVERNMENT FUND <p>Best Quarter: 3.02% (09/30/24)<br/>Worst Quarter: -2.51% (03/31/22)<br/>The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 1.65%.</p> <p>Best Quarter: 6.71% (12/31/23)<br/>Worst Quarter: -5.04% (09/30/22)<br/>The Fund's Class Y total return (pre-tax) from January 1, 2025 to March 31, 2025 was 2.82%.<br/>The Fund's Class Y shares commenced operations on October 30, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Class F shares is shown. The Fund's Class F shares are offered in a separate prospectus. Because Class Y shares are invested in the same portfolio of securities, returns for Class Y shares would have been substantially similar to those of Class F shares, shown here, and would have differed only to the extent that Class Y shares have lower total annual fund operating expenses than Class F shares.</p> <p>Best Quarter: 1.32% (12/31/23)<br/>Worst Quarter: 0.00% (03/31/21)<br/>The Fund's Class F total return from January 1, 2025 to&#xa0;March 31, 2025 was 1.03%.</p> <p>Best Quarter: 1.32% (12/31/23)<br/>Worst Quarter: 0.00% (03/31/21)<br/>The Fund's Class F total return from January 1, 2025 to&#xa0;March 31, 2025 was 1.03%.</p> <p>Best Quarter: 1.25% (12/31/23)<br/>Worst Quarter: 0.00% (03/31/21)<br/>The Fund's Admin Class total return from January 1, 2025 to March 31, 2025 was 1.00%.<br/>The Fund's Admin Class shares commenced operations on November 20, 2015. For the full calendar year ended December 31, 2015, the performance of the Fund's Institutional shares is shown. The Fund's Institutional shares are offered in a separate prospectus. Because Admin Class shares are invested in the same portfolio of securities, returns for Admin Class shares would have been substantially similar to those of Institutional shares, shown here, and would have differed only to the extent that Admin Class shares, for certain years, have higher total annual fund operating expenses than Institutional shares.</p> <p>Best Quarter: 1.24% (09/30/24)<br/>Worst Quarter: 1.12% (12/31/24)<br/>The Fund's Wealth Class shares total return from January 1, 2025 to March 31, 2025 was 1.00%.<br/>Wealth Class Shares of the Fund commenced operations on January 17, 2023. For full calendar years through December 31, 2023, the performance of the Fund's Institutional shares is shown. The Fund's Institutional shares are offered in a separate prospectus. Because Wealth Class shares would have been invested in the same portfolio of securities, returns for Wealth Class shares would have been substantially similar to those of Institutional shares, shown here, and would have differed only to the extent that the classes do not have the same total annual fund operating expenses. Because Wealth Class shares have higher expenses than Institutional shares, performance for Wealth Class shares would have been lower than that of Institutional shares.</p> <p>Best Quarter: 1.29% (12/31/23)<br/>Worst Quarter: 0.00% (03/31/21)<br/>The Fund's Institutional shares total return from January 1, 2025 to March 31, 2025 was 1.04%.</p> 485BPOS 0000701939 false 0.0043 0.0142 0.0166 0.0172 0.0321 0.0183 0.0001 0.0086 0.0582 0.0549 0.0011 0.0121 0.0045 0.0089 0.0321 0.0361 0.0114 0.0421 0.0412 0.0477 0.0157 0.0151 0.0165 0.0056 0.0549 0.0375 0.0195 0.1098 0.0494 0.0113 0.0043 0.0150 0.0185 0.0170 0.0329 0.0191 0.0009 0.0078 0.0590 0.0557 0.0009 0.0141 0.0049 0.0103 0.0346 0.0377 0.0097 0.0405 0.0429 0.0494 0.0157 0.0173 0.0179 0.0092 0.0567 0.0401 0.0168 0.1076 0.0521 0.0138 0.0001 0.0016 0.0070 0.0167 0.0203 0.0039 0.0001 0.0139 0.0493 0.0507 0.0001 0.0012 0.0067 0.0166 0.0202 0.0040 0.0002 0.0136 0.0490 0.0510 0.0002 0.0017 0.0068 0.0161 0.0202 0.0035 0.0001 0.0136 0.0472 0.0488 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STATEMENT OF ADDITIONAL INFORMATION

SEI DAILY INCOME TRUST

Government Fund

Ticker Symbols: Institutional—SEOXX, Admin Shares—GFAXX, Wealth Class Shares—AABXX

Government II Fund

Ticker Symbol: Class F—TCGXX

Treasury II Fund

Ticker Symbol: Class F—SCPXX

Ultra Short Duration Bond Fund

Ticker Symbols: Class F—SECPX, Class Y—SECYX

Short-Duration Government Fund

Ticker Symbols: Class F—TCSGX, Class Y—SDGFX

GNMA Fund

Ticker Symbols: Class F—SEGMX, Class Y—SGMYX

Administrator:

SEI Investments Global Funds Services

Distributor:

SEI Investments Distribution Co.

Investment Adviser:

SEI Investments Management Corporation

Sub-Advisers:

BlackRock Advisors, LLC

MetLife Investment Management, LLC

Wellington Management Company LLP

This Statement of Additional Information is not a prospectus. It is intended to provide additional information regarding the activities and operations of SEI Daily Income Trust (the "Trust") and should be read in conjunction with the Trust's Institutional, Class F, Class Y, Wealth Class and Admin Class shares prospectuses (the "Prospectuses"), each dated May 31, 2025. Prospectuses may be obtained upon request and without charge by writing the Trust's distributor, SEI Investments Distribution Co., One Freedom Valley Drive, Oaks, Pennsylvania 19456, or by calling 1-800-342-5734.

The Trust's financial statements for the fiscal year ended January 31, 2025, including notes thereto and the report of the Independent Registered Public Accounting Firm thereon, are included in the most recent Form N-CSR for the Funds and are incorporated by reference to this SAI. Shareholders may obtain copies of the Prospectus, the Funds' annual or semi-annual report, and other information, such as the Funds' financial statements free of charge online or by calling 1-800-DIAL-SEI. Unless you have elected to receive paper copies of the shareholder reports, you will be notified by mail each time a report is posted on the Funds' website and provided with a link to access the report online.

May 31, 2025

SEI-F-045 (5/25)


TABLE OF CONTENTS

GLOSSARY OF TERMS

 

S-1

 

THE TRUST

 

S-3

 

INVESTMENT OBJECTIVES AND POLICIES

 

S-3

 

DESCRIPTION OF PERMITTED INVESTMENTS AND RISK FACTORS

 

S-5

 

Artificial Intelligence Technology

 

S-5

 

Asset-Backed Securities

 

S-5

 

Commercial Paper

 

S-7

 

Derivatives

 

S-7

 

Dollar Rolls

 

S-8

 

Current Market Conditions

 

S-9

 

Fixed Income Securities

 

S-9

 

Foreign Securities and Emerging and Frontier Markets

 

S-11

 

Futures Contracts and Options on Futures Contracts

 

S-17

 

Government National Mortgage Association Securities

 

S-18

 

Illiquid Securities

 

S-18

 

Interest Rate

 

S-18

 

Interfund Lending and Borrowing Arrangements

 

S-19

 

Mortgage-Backed Securities

 

S-19

 

Municipal Securities

 

S-22

 

Obligations of Domestic Banks, Foreign Banks and Foreign Branches of U.S. Banks

 

S-23

 

Obligations of Supranational Entities

 

S-24

 

Options

 

S-24

 

Regulatory Reform

 

S-25

 

Repurchase Agreements

 

S-26

 

Restricted Securities

 

S-26

 

Reverse Repurchase Agreements and Sale-Buybacks

 

S-26

 

Risks of Cyber Attacks

 

S-27

 

Swaps, Caps, Floors, Collars and Swaptions

 

S-27

 

U.S. Government Securities

 

S-30

 

Variable and Floating Rate Instruments

 

S-31

 

When-Issued and Delayed Delivery Securities

 

S-31

 

INVESTMENT LIMITATIONS

 

S-31

 

THE ADMINISTRATOR AND TRANSFER AGENT

 

S-35

 

THE ADVISER AND SUB-ADVISERS

 

S-37

 

DISTRIBUTION AND SHAREHOLDER SERVICING

 

S-45

 

SECURITIES LENDING ACTIVITY

 

S-46

 

TRUSTEES AND OFFICERS OF THE TRUST

 

S-46

 

PROXY VOTING POLICIES AND PROCEDURES

 

S-54

 

DETERMINATION OF NET ASSET VALUE

 

S-56

 

PURCHASE AND REDEMPTION OF SHARES

 

S-59

 

TAXES

 

S-60

 

PORTFOLIO TRANSACTIONS

 

S-66

 

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

 

S-67

 

DESCRIPTION OF SHARES

 

S-69

 

LIMITATION OF TRUSTEES' LIABILITY

 

S-69

 

CODES OF ETHICS

 

S-69

 

VOTING

 

S-69

 

SHAREHOLDER LIABILITY

 

S-69

 

CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES

 

S-70

 

CUSTODIAN

 

S-73

 

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

 

S-73

 

LEGAL COUNSEL

 

S-73

 

APPENDIX A—DESCRIPTION OF RATINGS

 

A-1

 

GLOSSARY OF TERMS

The following terms are used throughout this SAI, and have the meanings set forth below. Because the following is a combined glossary of terms used for all the SEI Funds, certain terms below may not apply to your fund. Any terms used but not defined herein have the meaning ascribed to them in the applicable Fund's prospectus or as otherwise defined in this SAI.

Term

 

Definition

 
1933 Act  

Securities Act of 1933, as amended

 
1940 Act  

Investment Company Act of 1940, as amended

 

ADRs

 

American Depositary Receipts

 

ARMS

 

Adjustable Rate Mortgage Securities

 

BHCA

 

Bank-Holding Company Act

 
Bank Loan
Rate
  The rate of interest that would be charged by a
bank for short-term borrowings
 

Board

 

The Trust's Board of Trustees

 

CATS

 

Certificates of Accrual on Treasury Securities

 

CDOs

 

Collateralized Debt Obligations

 

CDRs

 

Continental Depositary Receipts

 
CFTC  

Commodities Futures Trading Commission

 

CLCs

 

Construction Loan Certificates

 

CLOs

 

Collateralized Loan Obligations

 

CMBS

 

Commercial Mortgage-Backed Securities

 

CMOs

 

Collateralized Mortgage Obligations

 

Code

 

Internal Revenue Code of 1986, as amended

 
Confidential
Information
 

Material, non-public information

 
Dodd-Frank
Act
  Dodd-Frank Wall Street Reform and Consumer
Protections Act
 

EDRs

 

European Depositary Receipts

 

ETFs

 

Exchange-Traded Funds

 

ETNs

 

Exchange-Traded Notes

 

ETPs

 

Exchange-Traded Products

 

EU

 

European Union

 

Fannie Mae

 

Federal National Mortgage Association

 

FHA

 

Federal Housing Administration

 

Freddie Mac

 

Federal Home Loan Mortgage Corporation

 

GDRs

 

Global Depositary Receipts

 

GNMA

 

Government National Mortgage Association

 

IFA

 

Insurance Funding Agreement

 

IO

 

Interest-Only Security

 

IRS

 

Internal Revenue Service

 
LYONs  

Liquid Yield Option Notes

 
MLPs  

Master Limited Partnerships

 

Moody's

 

Moody's Investors Service, Inc.

 

NAV

 

Net Asset Value

 

NDFs

 

Non-Deliverable Forwards

 

NRSRO

  Nationally Recognized Statistical Rating
Organization
 

OTC

 

Over-the-Counter

 

PAC Bonds

 

Planned Amortization Class CMOs

 

PIPEs

 

Private Investments in Public Equity

 


S-1


Term

 

Definition

 

PLC

 

Permanent Loan Certificate

 

P-Notes

 

Participation Notes

 

PO

 

Principal-Only Security

 

Program

 

SEI Funds' interfund lending program

 

QFII

 

Qualified Foreign Institutional Investor

 

QPTPs

 

Qualified Publicly Traded Partnerships

 

REITs

 

Real Estate Investment Trusts

 

REMIC Certificates

 

REMIC pass-through certificates

 

REMICs

 

Real Estate Mortgage Investment Conduits

 

REOCs

 

Real Estate Operating Companies

 

Repo Rate

  rate of interest for an investment in overnight
repurchase agreements
 

RIC

 

Regulated Investment Company

 

S&P

 

Standard & Poor's Rating Group

 

SEC

 

U.S. Securities and Exchange Commission

 

SEI Funds

  The existing or future investment companies
registered under the 1940 Act that are advised
by SIMC
 

SOFR

 

Secured Overnight Financing Rate

 

STRIPS

  Separately Traded Registered Interest and Principal
Securities
 

Subsidiary

  A wholly-owned subsidiary organized under the
laws of the Cayman Islands
 

TIGRs

 

Treasury Investment Growth Receipts

 

TRs

 

Treasury Receipts

 

UK

 

United Kingdom

 

World Bank

  International Bank of Reconstruction and
Development
 

Yankees

 

Yankee Obligations

 


S-2


THE TRUST

The Trust is a diversified, open-end management investment company established as a Massachusetts business trust pursuant to an Agreement and Declaration of Trust dated March 15, 1982. The Declaration of Trust permits the Trust to offer separate series ("portfolios") of units of beneficial interest ("shares") and separate classes of portfolios. Except for differences among the Institutional, Class F, Class Y, Wealth Class and/or Admin Class shares pertaining to shareholder servicing, administrative servicing, distribution, voting rights, dividends and transfer agent expenses, each share of each portfolio represents an equal proportionate interest in that portfolio with each other share of that portfolio. The Trust changed its name from SEI Cash+Plus Trust to its current name in April 1994.

This Statement of Additional Information ("SAI") relates to the following portfolios: Government, Government II, Treasury II, Ultra Short Duration Bond, Short-Duration Government, and GNMA Funds (each, a "Fund" and together, the "Funds"), including all classes of the Funds.

The investment adviser to the Funds, SEI Investments Management Corporation, is herein referred to as "SIMC" or the "Adviser," and the investment sub-advisers are each referred to as the "Sub-Adviser," and together, the "Sub-Advisers."

INVESTMENT OBJECTIVES AND POLICIES

GOVERNMENT FUND—The Government Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash, government securities and/or repurchase agreements that are collateralized fully with cash or government securities. The Fund may invest in variable or floating rate securities and when-issued securities. In addition, the Fund may invest up to 5% of its net assets in illiquid securities.

GOVERNMENT II FUND—The Government II Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Under normal market conditions, the Fund intends to invest at least 99.5% of its total assets in cash and government securities. The Fund may invest in variable or floating rate securities and when-issued securities. In addition, the Fund may invest up to 5% of its net assets in illiquid securities.

TREASURY II FUND—The Treasury II Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Under normal market conditions, the Fund invests exclusively in U.S. Treasury obligations. Using a top-down strategy and bottom-up security selection, the Sub-Adviser seeks to invest in securities with a remaining maturity not greater than 397 calendar days that are marketable, liquid and offer competitive yields, and which are expected to result in the Fund's portfolio having an average dollar-weighted maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less. In making investment decisions, the Sub-Adviser also considers factors such as the anticipated level of interest rates and the maturity of individual securities relative to the maturity of the Fund as a whole. Currently, the Fund invests only in first-tier securities.

ULTRA SHORT DURATION BOND FUND—The Ultra Short Duration Bond Fund seeks to provide higher current income than that typically offered by a money market fund while maintaining a high degree of liquidity and a correspondingly higher risk of principal volatility. Under normal market conditions, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in obligations of U.S. dollar-denominated debt instruments consisting of: (i) commercial paper rated in one of the two highest short-term rating categories by an NRSRO or, if unrated, determined by the Sub-Advisers to be of comparable quality at the time of investment; (ii) obligations (including certificates of deposit, time deposits, bankers' acceptances and bank notes) of U.S. savings and loan and thrift institutions, U.S. commercial banks (including foreign branches of such banks) and foreign banks; (iii) U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. Government or U.S. Government sponsored entities (including Treasury Inflation Protected Securities or "TIPS"); (iv) corporate obligations (notes, bonds and debentures) rated in one of the four highest long-term rating categories by an NRSRO or, if unrated, determined by the Sub-Advisers to be of comparable quality at the time of investment; (v) mortgage-backed


S-3


securities; (vi) asset-backed securities rated in one of the four highest long-term rating categories by an NRSRO or, if unrated, determined by the Sub-Advisers to be of comparable quality at the time of investment; (vii) repurchase agreements involving the foregoing securities; and (viii) U.S. dollar-denominated instruments of foreign issuers. The Fund may also invest in futures contracts, forwards contracts, options, swaps and other similar instruments. The primary derivatives used by the Fund are futures contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There will be times when the Fund utilizes futures contracts to take an active position to either increase or reduce the interest rate sensitivity of the Fund.

Using a top-down strategy and bottom-up security selection, the Sub-Advisers seek attractively-valued securities that offer competitive yields and that are issued by issuers that are on a sound financial footing. The Sub-Advisers also consider factors such as the anticipated level of interest rates, relative valuations and yield spreads among various sectors, and the duration of individual securities relative to the duration of fixed income securities in which the Fund invests as a whole.

The Sub-Advisers intend to limit the Fund's purchases of non-mortgage asset-backed securities to securities that are readily marketable at the time of purchase. The Fund may invest in variable or floating rate securities and when-issued and delayed delivery securities. In addition, the Fund may enter into dollar roll transactions with selected banks and broker-dealers and may invest up to 10% of its net assets in illiquid securities. Under normal conditions, the Sub-Advisers will strive to maintain a portfolio duration for the Fund of 18 months or less.

SHORT-DURATION GOVERNMENT FUND—The Short-Duration Government Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Under normal market conditions, the Fund invests substantially all of its net assets in: (i) U.S. Treasury obligations; (ii) obligations issued or guaranteed as to principal and interest by agencies and instrumentalities of the U.S. Government, including obligations of the GNMA, and other mortgage-backed securities of governmental issuers; and (iii) repurchase agreements fully collateralized by such obligations. The Fund may invest in securities issued by various entities sponsored by the U.S. Government, such as Fannie Mae and Freddie Mac. These issuers are chartered or sponsored by acts of Congress; however, their securities are neither issued nor guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. Government. The Fund may also invest in futures contracts, forward contracts, options, swaps and other similar instruments. The primary derivatives used by the Fund are futures contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There will be times when the Fund utilizes futures contracts to take an active position to either increase or reduce the interest rate sensitivity of the Fund. The Fund may enter into dollar roll transactions with selected banks and broker-dealers and may invest in variable or floating rate securities and when-issued and delayed delivery securities, including to-be-announced mortgage-backed securities. In addition, the Fund may invest up to 10% of its net assets in illiquid securities. Under normal market conditions, the Sub-Adviser will strive to maintain a portfolio duration of up to three years.

Using a top-down strategy and bottom-up security selection, the Sub-Adviser seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of individual securities relative to the duration of fixed income securities in which the Fund invests as a whole.

GNMA FUND—The GNMA Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Under normal market conditions, the Fund invests in the investments permitted for the Short-Duration Government Fund, but without restrictions on portfolio duration. At least 80% of the net assets (plus the amount of any borrowings for investment purposes) of the Fund will, under normal circumstances, be invested in mortgage-backed securities issued by the GNMA. The Fund will notify its shareholders at least 60 days prior to any change to this policy. In addition, the GNMA Fund may invest in futures contracts, forward contracts, options, swaps and other similar instruments and enter into dollar roll transactions with selected banks and broker-dealers. The primary derivatives used by the Fund are futures contracts. The Fund will primarily use futures contracts for hedging purposes to manage the Fund's exposure to interest rate risk. There will be times when the Fund utilizes futures contracts to take an active position to


S-4


either increase or reduce the interest rate sensitivity of the Fund. The Fund may invest in variable or floating rate securities and when-issued and delayed delivery securities, including to-be-announced mortgage-backed securities. In addition, the Fund may invest up to 10% of its net assets in illiquid securities.

Using a top-down strategy and bottom-up security selection, the Sub-Adviser seeks attractively-valued securities that offer competitive yields. The Sub-Adviser also considers factors such as the anticipated level of interest rates, relative valuations and yield spreads, and the duration of individual securities relative to the duration of fixed income securities in which the Fund invests as a whole.

There can be no assurance that the Funds will achieve their respective investment objectives.

DESCRIPTION OF PERMITTED INVESTMENTS AND RISK FACTORS

The following are descriptions of the permitted investments and investment practices of the Funds, including those discussed in the applicable Prospectus and the Funds' "Investment Objectives and Policies" section of this SAI and the associated risk factors. A Fund may purchase any of these instruments and/or engage in any of these investment practices if, in the opinion of SIMC or the Sub-Advisers, such investments or investment practices will be advantageous to the Fund. A Fund is free to reduce or eliminate its activity in any of these areas. An adviser may invest in any of the following instruments or engage in any of the following investment practices unless such investment or activity is inconsistent with or is not permitted by a Fund's stated investment policies, including those stated below. There is no assurance that any of these strategies or any other strategies and methods of investment available to a Fund will result in the achievement of the Fund's investment objective.

ARTIFICIAL INTELLIGENCE TECHNOLOGY—The rapid development and increasingly widespread use of certain artificial intelligence technologies, including machine learning models and generative artificial intelligence (collectively "AI"), may adversely impact markets, the overall performance of a Fund's investments, or the services provided to a Fund. To the extent a Fund invests in companies that are involved in various aspects of AI, the Fund will be affected by the risks of those types of companies, including changes in business cycles, world economic growth, technological progress, and changes in government regulation. Rapid change to technologies that affect a company's products could have a material adverse effect on such company's operating results. Companies that are extensively involved in AI also may rely heavily on a combination of patents, copyrights, trademarks, and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by these companies to protect their proprietary rights will be adequate to prevent the misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies' technology. Further, because of the innovative nature of the AI market, outpaced advancement by one company or increasing market share by one company could result in rapid and substantial declines in the value of competing companies. In addition, market reaction to the potential impact of AI could result in excess demand for access to AI-related investments, thereby resulting in accelerated growth in the market value of such companies, which may then be subject to sharp resets in the wake of news or other information that tempers expectations of AI or of particular AI-related companies, thus potentially resulting in periods of high volatility in the price of such securities, which could negatively affect the Funds' performance.

ASSET-BACKED SECURITIES—Asset-backed securities are securities that are backed primarily by the cash flows of a discrete pool of fixed or revolving receivables or other financial assets that by their terms convert into cash within a finite time period. Asset-backed securities include mortgage-backed securities, but the term is more commonly used to refer to securities supported by non-mortgage assets such as auto loans, motor vehicle leases, student loans, credit card receivables, floorplan receivables, equipment leases and peer-to-peer loans. The assets are removed from any potential bankruptcy estate of an operating company through the true sale of the assets to an issuer that is a special purpose entity, and the issuer obtains a perfected security interest in the assets. Payments of principal of and interest on asset-backed securities rely entirely on the performance of the underlying assets. Asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity and therefore, if the assets or sources of funds available to the issuer are insufficient to pay those securities, the Funds will incur losses. In addition, asset-backed securities entail prepayment risk that


S-5


may vary depending on the type of asset, but is generally less than the prepayment risk associated with mortgage-backed securities. Additional risks related to collateralized risk obligations, CLOs and mortgage-backed securities are described below.

Losses may be greater for asset-backed securities that are issued as "pass-through certificates" rather than as debt securities, because those types of certificates only represent a beneficial ownership interest in the related assets and their payment is based primarily on collections actually received. For asset-backed securities as a whole, if a securitization issuer defaults on its payment obligations due to losses or shortfalls on the assets held by the issuer, a sale or liquidation of the assets may not be sufficient to support payments on the securities and the Funds, as securityholders, may suffer a loss.

Recent changes in legislation, together with uncertainty about the nature and timing of regulations that continue to be promulgated to implement such legislation, has created uncertainty in the credit and other financial markets and other unknown risks. The Dodd-Frank Act, for example, imposes a new regulatory framework on the U.S. financial services industry and the consumer credit markets in general. As a result of the Dodd-Frank Act and similar measures to re-regulate the credit markets and, in particular, the structured finance markets, the manner in which asset-backed securities are issued and structured has been altered and the reporting obligations of the issuers of such securities may be significantly increased or may become costlier. The value or liquidity of any asset-backed securities held or acquired by the Funds may be adversely affected as a result of these changes.

In particular, the implementation of Section 619 of the Dodd-Frank Act (and related regulations) prohibiting certain banking entities from engaging in proprietary trading (the so-called Volcker Rule) and of Section 941 of the Dodd-Frank Act (and related regulations) requiring the "sponsor" of a securitization to retain no less than 5% of the credit risk of the assets collateralizing the asset-backed securities, could have a negative effect on the marketability and liquidity of asset-backed securities (including mortgage-backed securities and CDOs and CLOs), whether in the primary issuance or in secondary trading. It is possible that the risk retention rules may reduce the number of new issuances of private-label mortgage backed securities or the number of collateral managers active in the CDO and CLO markets, which also may result in fewer new issue securities. A contraction or reduced liquidity in the asset-backed, CDO or CLO markets could reduce opportunities for the Funds to sell their securities and might adversely affect the management flexibility of the Funds in relation to the respective portfolios.

In addition to the changes required by the Dodd-Frank Act, the SEC adopted rules in August 2014 that substantially revise "Regulation AB" (the SEC's principal source of rules for asset-backed securities) and other rules governing the offering process, disclosure and reporting for asset-backed securities issued in registered transactions. Among other things, those rules require enhanced disclosure of asset-level information at the time of the securitization and on an ongoing basis. Certain elements of proposed Regulation AB remain outstanding, including the proposal that issuers of structured finance products offered privately provide the same initial and ongoing information as would be required if the offering were public. It is not clear when or whether any of the proposed revisions to Regulation AB that remain outstanding will be adopted, how those standards will be implemented, or what effect those standards will have on securitization transactions. The rules may, for example, have the effect of impeding new issuances and reducing the availability of investments for the Funds, or adversely affecting the market value of legacy securities that do not conform with the new rules.

There is a limited secondary market for asset-backed securities. Consequently, it may be difficult for the Funds to sell or realize profits on those securities at favorable times or for favorable prices.

CDO and CLO securities are non-recourse obligations of their issuer payable solely from the related underlying collateral or its proceeds. Therefore, as a holder of CDOs and CLOs, the Funds must rely only on distributions on the underlying collateral or related proceeds for payment. If distributions on the underlying collateral are insufficient to make payments on the CDO or CLO securities, no other assets will be available for payment of the deficiency. As a result, the amount and timing of interest and principal payments in respect of CDO and CLO securities will depend on the performance and characteristics of the related underlying collateral.


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Recent legislation, such as the Dodd-Frank Act, together with uncertainty about the nature and timing of regulations that will be promulgated to implement such legislation, may continue to create uncertainty in the credit and other financial markets. Given that all applicable final implementing rules and regulations have not yet been published or are not yet in effect, the potential impact of these actions on CDOs and CLOs owned by the Funds is unknown. If existing transactions are not exempted from the new rules or regulations, compliance with those rules and regulations could impose significant costs on the issuers of CDOs and CLOs and ultimately adversely impact the holders (including the Funds) of those types of securities.

COMMERCIAL PAPER—Commercial paper is the term used to designate unsecured short-term promissory notes issued by corporations and other entities to finance short-term credit needs. Commercial paper is usually sold on a discount basis and has a maturity at the time of issuance generally not exceeding 270 days. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities. The value of commercial paper will tend to fall when interest rates rise and rise when interest rates fall.

DERIVATIVES—In an attempt to reduce systemic and counterparty risks associated with OTC derivative transactions, the Dodd-Frank Act requires that a substantial portion of OTC derivatives be executed in regulated markets and submitted for clearing to regulated clearinghouses. The CFTC also requires a substantial portion of derivative transactions that have historically been executed on a bilateral basis in the OTC markets to be executed through a regulated swap execution facility or designated contract market. The SEC has and is expected to continue to impose similar requirements with respect to security-based swaps. Such requirements could limit the ability of the Funds to invest or remain invested in derivatives and may make it more difficult and costly for investment funds, including the Funds, to enter into highly tailored or customized transactions. They may also render certain strategies in which a Fund might otherwise engage impossible or so costly that they will no longer be economical to implement.

OTC trades submitted for clearing will be subject to minimum initial and variation margin requirements set by the relevant clearinghouse, as may be adjusted to a higher amount by the Fund's Futures Commission Merchant, as well as SEC- or CFTC-mandated margin requirements. With respect to uncleared swaps, swap dealers are required to collect variation margin from a Fund and may be required to collect initial margin from a Fund pursuant to the CFTC's or the Prudential Regulators' uncleared swap margin rules. Both initial and variation margin must be in the form of eligible collateral, and may be composed of cash and/or securities, subject to applicable regulatory haircuts. These rules also mandate that collateral in the form of initial margin be posted to cover potential future exposure attributable to uncleared swap transactions for certain entities, which may include the Funds. In the event a Fund is required to post collateral in the form of initial margin in respect of its uncleared swap transactions, all such collateral will be posted with a third-party custodian pursuant to a triparty custody agreement between the Fund, its dealer counterparty and an unaffiliated custodian.

Although the Dodd-Frank Act requires many OTC derivative transactions previously entered into on a principal-to-principal basis to be submitted for clearing by a regulated clearinghouse, certain of the derivatives that may be traded by a Fund may remain principal-to-principal or OTC contracts between the Fund and third parties. The risk of counterparty non-performance can be significant in the case of these OTC instruments, and "bid-ask" spreads may be unusually wide in these markets. To the extent not mitigated by implementation of the Dodd-Frank Act, if at all, the risks posed by such instruments and techniques, which can be complex, may include: (1) credit risks (the exposure to the possibility of loss resulting from a counterparty's failure to meet its financial obligations), as further discussed below; (2) market risk (adverse movements in the price of a financial asset or commodity); (3) legal risks (the characterization of a transaction or a party's legal capacity to enter into it could render the transaction unenforceable, and the insolvency or bankruptcy of a counterparty could pre-empt otherwise enforceable contract rights); (4) operational risk (inadequate controls, deficient procedures, human error, system failure or fraud); (5) documentation risk (exposure to losses resulting from inadequate documentation); (6) liquidity risk (exposure to losses created by inability to prematurely terminate derivative transactions); (7) systemic risk (the risk that financial difficulties in one institution or a major market disruption will cause uncontrollable financial harm to the financial system); (8) concentration risk (exposure to losses from the concentration of closely related risks such as exposure to a particular industry or exposure linked to a particular entity); and (9) settlement risk (the risk faced when one party to a transaction has performed its obligations under a contract but has not yet received value from its counterparty).


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Swap dealers and major swap participants that are registered with the CFTC and with whom a Fund may trade are subject to minimum capital and margin requirements. These requirements may apply irrespective of whether the OTC derivatives in question are traded bilaterally or cleared. OTC derivatives dealers are subject to business conduct standards, disclosure requirements, reporting and recordkeeping requirements, transparency requirements, position limits, limitations on conflicts of interest, and other regulatory burdens. These requirements may increase the overall costs for OTC derivative dealers, which are likely to be passed along, at least partially, to market participants in the form of higher fees or less advantageous dealer marks. The full impact of the Dodd-Frank Act on the Funds remains uncertain, and it is unclear how the OTC derivatives markets will ultimately adapt to this new regulatory regime.

Rule 18f-4 under the 1940 Act governs a Fund's use of derivative instruments and certain other transactions that create future payment and/or delivery obligations by the Fund. Rule 18f-4 permits a Fund to enter into Derivative Transactions (as defined below) and certain other transactions notwithstanding the restrictions on the issuance of "senior securities" under Section 18 of the 1940 Act. Section 18 of the 1940 Act, among other things, prohibits open-end funds, including a Fund, from issuing or selling any "senior security," other than borrowing from a bank (subject to a requirement to maintain 300% "asset coverage"). In connection with the adoption of Rule 18f-4, the SEC eliminated the asset segregation framework arising from prior SEC guidance for covering Derivative Transactions and certain financial instruments.

Under Rule 18f-4, "Derivative Transactions" include the following: (1) any swap, security-based swap (including a contract for differences), futures contract, forward contract, option (excluding purchased options), any combination of the foregoing, or any similar instrument, under which a Fund is or may be required to make any payment or delivery of cash or other assets during the life of the instrument or at maturity or early termination, whether as margin or settlement payment or otherwise; (2) any short sale borrowing; (3) reverse repurchase agreements and similar financing transactions, if a Fund elects to treat these transactions as Derivative Transactions under Rule 18f-4; and (4) when-issued or forward-settling securities (e.g., firm and standby commitments, including to-be-announced ("TBA") commitments, and dollar rolls) and non-standard settlement cycle securities, unless the Fund intends to physically settle the transactions and the transaction will settle within 35 days of its trade date.

Rule 18f-4 requires that a Fund that invests in Derivative Transactions above a specified amount adopt and implement a derivatives risk management program administered by a derivatives risk manager that is appointed by and overseen by the Funds' Board, and comply with an outer limit on Fund leverage risk based on value at risk. A Fund that uses Derivative Transactions in a limited amount are considered "limited derivatives users," as defined in Rule 18f-4, will not be subject to the full requirements of Rule 18f-4, but will have to adopt and implement policies and procedures reasonably designed to manage the Funds' derivatives risk. A Fund will be subject to reporting and recordkeeping requirements regarding its use of Derivative Transactions.

The requirements of Rule 18f-4 may limit a Fund's ability to engage in Derivative Transactions as part of its investment strategies. These requirements may also increase the cost of a Fund's investments and cost of doing business, which could adversely affect the value of the Fund's investments and/or the performance of the Fund. The rule also may not be effective to limit a Fund's risk of loss. In particular, measurements of VaR rely on historical data and may not accurately measure the degree of risk reflected in a Fund's derivatives or other investments. There may be additional regulation of the use of Derivative Transactions by registered investment companies, which could significantly affect their use. The ultimate impact of the regulations remains unclear. Additional regulation of Derivative Transactions may make them more costly, limit their availability or utility, otherwise adversely affect their performance or disrupt markets.

More information about particular types of derivatives instruments is included below in the sections titled "Futures Contracts and Options on Futures Contracts," "Options" and "Swaps, Caps, Floors, Collars and Swaptions."

DOLLAR ROLLS—Dollar rolls are transactions in which securities (usually mortgage-backed securities) are sold for delivery in the current month and the seller simultaneously contracts to repurchase substantially similar securities on a specified future date. The difference between the sale price and the purchase price (plus


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any interest earned on the cash proceeds of the sale) is netted against the interest income foregone on the securities sold to arrive at an implied borrowing rate. Alternatively, the sale and purchase transactions can be executed at the same price, with a Fund being paid a fee as consideration for entering into the commitment to purchase. Dollar rolls may be renewed prior to cash settlement and may initially involve only a firm commitment agreement by a Fund to buy a security. If the broker-dealer to whom a Fund sells the security becomes insolvent, the Fund's right to repurchase the security may be restricted. Other risks involved in entering into dollar rolls include the risk that the value of the security may change adversely over the term of the dollar roll and that the security a Fund is required to repurchase may be worth less than the security that the Fund originally held.

A Fund must comply with Rule 18f-4 under the 1940 Act with respect to its dollar roll transactions, which are considered Derivative Transactions under the Rule. See "Derivatives" above.

CURRENT MARKET CONDITIONS RISK—Current market conditions risk is the risk that a particular investment, or shares of the Funds in general, may fall in value due to current market conditions. Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks recently began to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Funds' investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. For example, ongoing armed conflicts between Russia and Ukraine in Europe and among Israel, Hamas and other militant groups in the Middle East, have caused and could continue to cause significant market disruptions and volatility within the markets in Russia, Europe, the Middle East and the United States. The hostilities and sanctions resulting from those hostilities have and could continue to have a significant impact on certain Fund investments as well as Fund performance and liquidity. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. If geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Funds' assets may go down. The COVID-19 global pandemic, or any future public health crisis, and the ensuing policies enacted by governments and central banks have caused and may continue to cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. While vaccines have been developed, there is no guarantee that vaccines will be effective against emerging future variants of the disease. As this global pandemic illustrated, such events may affect certain geographic regions, countries, sectors and industries more significantly than others. Advancements in technology may also adversely impact markets and the overall performance of the Funds. For instance, the economy may be significantly impacted by the advanced development and increased regulation of artificial intelligence. These events, and any other future events, may adversely affect the prices and liquidity of the Funds' portfolio investments and could result in disruptions in the trading markets

FIXED INCOME SECURITIES—Fixed income securities consist primarily of debt obligations issued by governments, corporations, municipalities and other borrowers, but may also include structured securities that provide for participation interests in debt obligations. The market value of the fixed income securities in which a Fund invests will change in response to interest rate changes and other factors. During periods of falling interest rates, the value of outstanding fixed income securities generally rises. Conversely, during periods of rising interest rates, the value of such securities generally declines. Moreover, while securities with longer maturities tend to produce higher yields, the prices of longer maturity securities are also subject to greater market fluctuations as a result of changes in interest rates. Changes by recognized agencies in the rating of any fixed income security and in the ability of an issuer to make payments of interest and principal also affect the value of these investments. Changes in the value of these securities will not necessarily affect cash income derived from these securities, but will affect a Fund's NAV.


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Securities held by a Fund that are guaranteed by the U.S. Government, its agencies or instrumentalities guarantee only the payment of principal and interest and do not guarantee the yield or value of the securities or the yield or value of the Fund's shares.

There is a risk that the current interest rate on floating and variable rate instruments may not accurately reflect existing market interest rates.

Additional information regarding fixed income securities is described below:

Duration. Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security's price to changes in interest rates. For example, if a fixed income security has a five-year duration, it will decrease in value by approximately 5% if interest rates rise 1% and increase in value by approximately 5% if interest rates fall 1%. Fixed income instruments with longer duration typically have higher risk and higher volatility. Longer-term fixed income securities in which a portfolio may invest are more volatile than shorter-term fixed income securities. A portfolio with a longer average portfolio duration is typically more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

Investment Grade Fixed Income Securities. Fixed income securities are considered investment grade if they are rated in one of the four highest rating categories by a NRSRO, or, if not rated, are determined to be of comparable quality by SIMC or a Sub-Adviser, as applicable. See "Appendix A-Description of Ratings" for a description of the bond rating categories of several NRSROs. Ratings of each NRSRO represent its opinion of the safety of principal and interest payments, not the market risk, of bonds and other fixed income securities it undertakes to rate at the time of issuance. Ratings are not absolute standards of quality and may not reflect changes in an issuer's creditworthiness. Securities rated Baa3 or higher by Moody's or BBB- or higher by S&P are considered by those rating agencies to be "investment grade" securities, although securities rated Baa3 or BBB- lack outstanding investment characteristics and have speculative characteristics. Although issuers of bonds rated BBB by S&P are considered to have adequate capacity to meet their financial commitments, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity to pay interest and principal for debt in this category than debt in higher-rated categories. In the event a security owned by a Fund is downgraded below investment grade, SIMC or a Sub-Adviser, as applicable, will review the situation and take appropriate action with regard to the security.

Lower-Rated Securities. Lower-rated bonds or non-investment grade bonds are commonly referred to as "junk bonds" or high yield/high-risk securities. Lower-rated securities are defined as securities rated below the fourth highest rating category by an NRSRO. Such obligations are speculative and may be in default.

Fixed income securities are subject to the risk of an issuer's ability to meet principal and interest payments on the obligation (known as "credit risk") and may also be subject to price volatility due to such factors as interest rate sensitivity, market perception of the creditworthiness of the issuer and general market liquidity (known as "market risk"). Lower-rated or unrated (i.e., high yield) securities are more likely to react to developments affecting market and credit risk than are more highly rated securities, which primarily react to movements in the general level of interest rates. Yields and market values of high yield securities will fluctuate over time, reflecting not only changing interest rates but also the market's perception of credit quality and the outlook for economic growth. When economic conditions appear to be deteriorating, medium- to lower-rated securities may decline in value due to heightened concern over credit quality, regardless of prevailing interest rates.

Investors should carefully consider the relative risks of investing in high yield securities and understand that such securities are not generally meant for short-term investing.

Adverse economic developments can disrupt the market for high yield securities and severely affect the ability of issuers, especially highly leveraged issuers, to service their debt obligations or to repay their obligations upon maturity, which may lead to a higher incidence of default on such securities. In addition, the secondary market for high yield securities may not be as liquid as the secondary market for more highly rated securities. As a result, it may be more difficult for a Fund to sell these securities, or a Fund may only be able to sell the securities at prices lower than if such securities were highly liquid. Furthermore, a Fund may experience difficulty


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in valuing certain high yield securities at certain times. Under these circumstances, prices realized upon the sale of such lower-rated or unrated securities may be less than the prices used in calculating the Fund's NAV. Prices for high yield securities may also be affected by legislative and regulatory developments.

Lower-rated or unrated fixed income obligations also present risks based on payment expectations. If an issuer calls the obligations for redemption, a Fund may have to replace the security with a lower-yielding security, resulting in a decreased return for investors. If a Fund experiences unexpected net redemptions, it may be forced to sell its higher-rated securities, resulting in a decline in the overall credit quality of the Fund's investment portfolio and increasing the Fund's exposure to the risks of high yield securities.

A Fund may invest in securities rated as low as "C" by Moody's or "D" by S&P and may invest in unrated securities that are of comparable quality as "junk bonds."

Sensitivity to Interest Rate and Economic Changes. Lower-rated bonds are very sensitive to adverse economic changes and corporate developments. During an economic downturn, highly leveraged issuers may experience financial stress that would adversely affect their ability to service their principal and interest payment obligations, to meet projected business goals and to obtain additional financing. If the issuer of a bond defaulted on its obligations to pay interest or principal or entered into bankruptcy proceedings, a Fund may incur losses or expenses in seeking recovery of amounts owed to it. In addition, periods of economic uncertainty and change can be expected to result in increased volatility of market prices of high-yield, high-risk bonds and a Fund's NAV.

Payment Expectations. High-yield, high-risk bonds may contain redemption or call provisions. If an issuer exercised these provisions in a declining interest rate market, a Fund would have to replace the security with a lower-yielding security, resulting in a decreased return for investors. Conversely, a high-yield, high-risk bond's value may decrease in a rising interest rate market, as will the value of a Fund's assets. If a Fund experiences significant unexpected net redemptions, it may be forced to sell high-yield, high-risk bonds without regard to their investment merits, thereby decreasing the asset base upon which expenses can be spread and possibly reducing the Fund's rate of return.

Liquidity and Valuation. There may be little trading in the secondary market for particular bonds, which may adversely affect a Fund's ability to value accurately or dispose of such bonds. Adverse publicity and investor perception, whether or not based on fundamental analysis, may decrease the value and liquidity of high-yield, high-risk bonds, especially in a thin market.

Taxes. A Fund may purchase debt securities (such as zero coupon or pay-in-kind securities) that contain original issue discount. Original issue discount that accretes in a taxable year is treated as earned by a Fund and is therefore subject to the distribution requirements applicable to RICs under Subchapter M of the Code. Because the original issue discount earned by a Fund in a taxable year may not be represented by cash income, the Fund may have to dispose of other securities and use the proceeds to make distributions to shareholders.

FOREIGN SECURITIES AND EMERGING AND FRONTIER MARKETS—Foreign securities are securities issued by non-U.S. issuers. Investments in foreign securities may subject a Fund to investment risks that differ in some respects from those related to investments in securities of U.S. issuers. Such risks include future adverse political and economic developments, possible imposition of withholding taxes on income, possible seizure, nationalization or expropriation of foreign deposits, possible establishment of exchange controls or taxation at the source or greater fluctuations in value due to changes in exchange rates. Foreign issuers of securities often engage in business practices that differ from those of domestic issuers of similar securities, and there may be less information publicly available about foreign issuers. In addition, foreign issuers are, generally, subject to less government supervision and regulation and different accounting treatment than those in the United States. Foreign branches of U.S. banks and foreign banks may be subject to less stringent reserve requirements than those applicable to domestic branches of U.S. banks.

The value of a Fund's investments denominated in foreign currencies will depend on the relative strengths of those currencies and the U.S. dollar, and a Fund may be affected favorably or unfavorably by changes in the exchange rates or exchange or currency control regulations between foreign currencies and the U.S. dollar. Changes in foreign currency exchange rates may also affect the value of dividends and interest earned, gains


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and losses realized on the sale of securities and net investment income and gains, if any, to be distributed to shareholders by a Fund. Such investments may also entail higher custodial fees and sales commissions than domestic investments.

A Fund's investments in emerging and frontier markets can be considered speculative and therefore may offer higher potential for gains and losses than investments in developed markets. With respect to an emerging market country, there may be a greater potential for nationalization, expropriation or confiscatory taxation, political changes, government regulation, social instability or diplomatic developments (including war), which could adversely affect the economies of such countries or investments in such countries. "Frontier market countries" are a subset of emerging market countries with even smaller national economies, so these risks may be magnified further. The economies of emerging and frontier countries are generally heavily dependent upon international trade and, accordingly, have been and may continue to be adversely affected by trade barriers, exchange or currency controls, managed adjustments in relative currency values and other protectionist measures imposed or negotiated by the countries with which they trade.

The economies of frontier market countries tend to be less correlated to global economic cycles than the economies of more developed countries and their markets have lower trading volumes and may exhibit greater price volatility and illiquidity. A small number of large investments in these markets may affect these markets to a greater degree than more developed markets. Frontier market countries may also be affected by government activities to a greater degree than more developed countries. For example, the governments of frontier market countries may exercise substantial influence within the private sector or subject investments to government approval, and governments of other countries may impose or negotiate trade barriers, exchange controls, adjustments to relative currency values and other measures that adversely affect a frontier market country. Governments of other countries may also impose sanctions or embargoes on frontier market countries. Although all of these risks are generally heightened with respect to frontier market countries, they also apply to emerging market countries.

In addition to the risks of investing in debt securities of emerging and frontier markets, a Fund's investment in government or government-related securities of emerging and frontier market countries and restructured debt instruments in emerging and frontier markets are subject to special risks, including the inability or unwillingness to repay principal and interest, requests to reschedule or restructure outstanding debt and requests to extend additional loan amounts. A Fund may have limited recourse in the event of default on such debt instruments.

Growing tensions, including trade disputes, between the United States and other nations, or among foreign powers, and possible diplomatic, trade or other sanctions could adversely impact the global economy, financial markets and the Funds. The strengthening or weakening of the U.S. dollar relative to other currencies may, among other things, adversely affect the Funds' investments denominated in non-U.S. dollar currencies. It is difficult to predict when similar events affecting the U.S. or global financial markets may occur, the effects that such events may have, and the duration of those effects.

Investments in the United Kingdom—On January 31, 2020, the UK officially withdrew from the EU (commonly known as "Brexit"). Following a transition period, the United Kingdom's post-Brexit trade agreement with the European union passed into law in December 2020, became effective on a provisional basis on January 1, 2021, and formally entered into force on May 1, 2021.

The impact of Brexit on the UK, the EU and global markets remains unclear and will depend largely upon the UK's ability to negotiate favorable terms with the EU with respect to trade and market access. Brexit may also impact each of these markets should it lead to the creation of divergent national laws and regulations that produce new legal regimes and unpredictable tax consequences. As a result of the uncertain consequences of Brexit, the economies of the UK and EU as well as the broader global economy could be significantly impacted, which may result in increased volatility and illiquidity, and potentially lower economic growth on markets in the UK, EU and globally that could potentially have an adverse effect on the value of a Fund's investments.

Investments in China—China is an emerging market, and as a result, investments in securities of companies organized and listed in China may be subject to liquidity constraints and significantly higher volatility, from


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time to time, than investments in securities of more developed markets. China may be subject to considerable government intervention and varying degrees of economic, political and social instability. These factors may result in, among other things, a greater risk of stock market, interest rate, and currency fluctuations, as well as inflation. While progress has been made in aligning audit oversight between China and the United States, including the PCAOB's recent inspections of certain Chinese companies, significant differences remain in accounting, auditing, and financial reporting standards. Therefore, foreign investors may face challenges in accessing reliable and transparent financial information, and disclosure of certain material information may not be made, may be less available, or may be less reliable. It may also be difficult or impossible for the Fund to obtain or enforce a judgment in a Chinese court. In addition, periodically there may be restrictions on investments in Chinese companies. For example, Executive Orders have been issued prohibiting U.S. persons from purchasing or investing in publicly-traded securities of certain companies identified by the U.S. Government because of their ties to the Chinese military or China's surveillance technology sector. These restrictions have also applied to instruments that are derivative of, or are designed to provide investment exposure to, those companies. The list of affected securities is subject to change and has expanded over time. As a result, these restrictions may reduce the liquidity of designated securities, impact their market prices, and potentially create broader market effects for other Chinese-based issuers. As a result of an increase in the number of investors looking to sell such securities, or because of an inability to participate in an investment that the Adviser or a Sub-Adviser otherwise believes is attractive, a Fund may incur losses. Certain investments that are or become designated as prohibited investments may have less liquidity as a result of such designation and the market price of such prohibited investments may decline, potentially causing losses to a Fund. In addition, the market for securities and other investments of other Chinese-based issuers may also be negatively impacted, resulting in reduced liquidity and price declines.

Investments in the China A-Shares. A Fund may invest in People's Republic of China ("PRC") A-Shares through the Shanghai-Hong Kong Stock Connect program or Shenzhen-Hong Kong Stock Connect program (collectively, the "Stock Connect") subject to any applicable laws, rules and regulations. The Stock Connect is a securities trading and clearing linked program developed by Hong Kong Exchanges and Clearing Limited ("HKEx"), the Hong Kong Securities Clearing Company Limited ("HKSCC"), Shanghai Stock Exchange ("SSE"), Shenzhen Stock Exchange ("SZSE") and China Securities Depository and Clearing Corporation Limited ("ChinaClear") with the aim of achieving mutual stock market access between PRC and Hong Kong. This program allows foreign investors to trade eligible SSE-listed or SZSE-listed PRC A-Shares through their Hong Kong based brokers. All Hong Kong and overseas investors in the Stock Connect will trade and settle SSE or SZSE securities in the offshore Renminbi ("CNH") only. A Fund will be exposed to any fluctuation in the exchange rate between the U.S. Dollar and CNH in respect of such investments.

By seeking to invest in the domestic securities markets of the PRC via the Stock Connect a Fund is subject to the following additional risks:

General Risks. The relevant regulations governing the Stock Connect program have become more established through years of implementation. However, they remain subject to change and may have potential retrospective effect. Regulatory or policy adjustments could adversely affect a Fund's investment in PRC A-Shares. The program requires the use of new information technology systems which may be subject to operational risk due to the program's cross-border nature. Additionally, increasing cybersecurity risks, including potential cyberattacks on cross-border trading systems, could adversely impact the program's operations and a Fund's ability to trade PRC A-Shares.

Stock Connect will only operate on days when both the PRC and Hong Kong markets are open for trading and when banks in both markets are open on the corresponding settlement days. There may be occasions when it is a normal trading day for the PRC market but the Stock Connect is not trading. As a result, a Fund may be subject to the risk of price fluctuations in PRC A-Shares when the Fund cannot carry out any PRC A-Shares trading.

Each of the Hong Kong Stock Exchange ("SEHK"), SSE and SZSE reserves the right to suspend trading if necessary for ensuring an orderly and fair market and that risks are managed prudently. In case of a suspension, the Fund's ability to access the PRC market will be adversely affected.


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PRC regulations impose restrictions on selling and buying certain Stock Connect securities from time to time. In the event that a Stock Connect security is recalled from the scope of eligible securities for trading via Stock Connect, the ability of the Fund to invest in Stock Connect securities will be adversely affected.

Clearing and Settlement Risk. HKSCC and ChinaClear have established the clearing links and each will become a participant of each other to facilitate clearing and settlement of cross-boundary trades. For cross-boundary trades initiated in a market, the clearing house of that market will on one hand clear and settle with its own clearing participants and on the other hand undertake to fulfill the clearing and settlement obligations of its clearing participants with the counterparty clearing house.

In the event ChinaClear defaults, HKSCC's liabilities under its market contracts with clearing participants may be limited to assisting clearing participants with claims. It is anticipated that HKSCC will act in good faith to seek recovery of the outstanding stocks and monies from ChinaClear through available legal channels or the liquidation of ChinaClear. However, there is no guarantee that full recovery will be achieved, and investors may suffer losses as a result. As ChinaClear does not contribute to the HKSCC guarantee fund, HKSCC will not use the HKSCC guarantee fund to cover any residual loss as a result of closing out any of ChinaClear's positions. HKSCC will in turn distribute the Stock Connect Securities and/or monies recovered to clearing participants on a pro-rata basis. The relevant broker through whom a Fund trades shall in turn distribute Stock Connect securities and/or monies to the extent recovered directly or indirectly from HKSCC. As such, a Fund may not fully recover their losses or their Stock Connect Securities and/or the process of recovery could be delayed.

Legal/Beneficial Ownership. The Stock Connect securities purchased by a Fund will be held by the relevant sub-custodian in accounts in the Hong Kong Central Clearing and Settlement System ("CCASS") maintained by the HKSCC, as central securities depositary in Hong Kong. The HKSCC will be the "nominee holder" of the Funds' Stock Connect Securities traded through Stock Connect. The Stock Connect regulations as promulgated by the China Securities Regulatory Commission ("CSRC") expressly provide that HKSCC acts as nominee holder and that the Hong Kong and overseas investors (such as the Funds) enjoy the rights and interests with respect to the Stock Connect Securities acquired through Stock Connect in accordance with applicable laws. The precise nature and rights of a Fund as the beneficial owner of the SSE Securities or SZSE Securities through HKSCC as nominee is not well defined under the PRC laws. There is a lack of a clear definition of, and distinction between, legal ownership and beneficial ownership under the PRC laws and there have been few cases involving a nominee account structure in the PRC courts. The exact nature and methods of enforcement of the rights and interests of a Fund under the PRC laws is also uncertain. Therefore, although the Funds' ownership may be ultimately recognised, it may suffer difficulties or delays in enforcing its rights over its Stock Connect securities.

To the extent that HKSCC is deemed to be performing safekeeping functions with respect to assets held through it, it should be noted that a Fund and its custodian will have no legal relationship with HKSCC and no direct legal recourse against HKSCC in the event that the Fund suffers losses resulting from the performance or insolvency of HKSCC. In the event that the Fund suffers losses due to the negligence, or willful default, or insolvency of HKSCC, the Fund may not be able to institute legal proceedings, file any proof of claim in any insolvency proceeding or take any similar action. In the unlikely event that HKSCC becomes subject to winding up proceedings in Hong Kong, there is a risk that the SSE Securities or SZSE Securities may not be regarded as held for the beneficial ownership of a Fund or as part of the general assets of HKSCC available for general distribution to its creditors. Consequently, the value of the Fund's investment in PRC A-Shares and the amount of its income and gains could be adversely affected.

Participation in corporate actions and shareholder meetings.  Hong Kong and overseas investors (including the Fund) are holding Stock Connect securities traded via the Stock Connect through their brokers or custodians, and they need to comply with the arrangement and deadline specified by their respective brokers or custodians (i.e. CCASS participants). The time for them to take actions for some types of corporate actions of Stock Connect Securities may be as short as one business day only. Therefore, the Fund may not be able to participate in some corporate actions in a timely manner. According to existing mainland practice, multiple proxies are not available. Therefore, the Fund may not be able to appoint proxies to attend or participate in shareholders' meetings in respect of the Stock Connect securities.


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Operational Risk. The HKSCC provides clearing, settlement, nominee functions and other related services in respect of trades executed by Hong Kong market participants. PRC regulations impose certain restrictions on the buying and selling of A-Shares, including pre-trade checking requirements. For investors not using SPSA (Special Segregated Account) or Master SPSA accounts (Master Special Segregated Account), pre-delivery of shares to the broker may be required, which could increase counterparty risk. Consequently, a Fund may face delays or operational challenges in purchasing or disposing of PRC A-Shares in a timely manner.

Quota Limitations. The Stock Connect program is subject to daily quota limitations which require that buy orders for A-shares be rejected once the daily quota is exceeded. These limitations may restrict a Fund from investing in A-shares on a timely basis, which could affect the Fund's ability to effectively pursue its investment strategy. Investment quotas are also subject to change.

Investor Compensation. A Fund will not benefit from the China Securities Investor Protection Fund in mainland China. The China Securities Investor Protection Fund is established to pay compensation to investors in the event that a securities company in mainland China is subject to compulsory regulatory measures (such as dissolution, closure, bankruptcy, and administrative takeover by the China Securities Regulatory Commission). Because the Fund is carrying out trading of PRC A-Shares through securities brokers in Hong Kong, but not mainland China brokers, it is not protected by the China Securities Investor Protection Fund.

That said, if the Fund suffers losses due to default matters of its securities brokers in Hong Kong in relation to the investment of PRC A-Shares through the Stock Connect program, it would be compensated by Hong Kong's Investor Compensation Fund.

Tax within the PRC. Uncertainties in the PRC tax rules governing taxation of income and gains from investments in PRC securities could result in unexpected tax liabilities for a Fund. A Fund's investments in securities, including A-Shares, issued by PRC companies may cause the Fund to become subject to withholding and other taxes imposed by the PRC.

If a Fund were considered to be a tax resident enterprise of the PRC, it would be subject to PRC corporate income tax at the rate of 25% on its worldwide taxable income. If a Fund were considered to be a non-tax resident enterprise with a "permanent establishment" in the PRC, it would be subject to PRC corporate income tax on the profits attributable to the permanent establishment. SIMC and the Funds' Sub-Advisers intend to operate the Funds in a manner that will prevent them from being treated as tax resident enterprises of the PRC and from having a permanent establishment in the PRC. It is possible, however, that the PRC could disagree with that conclusion, or that changes in PRC tax law could affect the PRC corporate income tax status of a Fund.

Unless reduced or exempted by the applicable tax treaties, the PRC generally imposes withholding income tax at the rate of 10% on dividends, premiums, interest and capital gains originating in the PRC and paid to a company that is not a resident of the PRC for tax purposes and that has no permanent establishment in China.

SIMC, the Funds' Sub-Advisers or a Fund may also potentially be subject to PRC value added tax at the rate of 6% on capital gains derived from trading of A-Shares and interest income (if any). Existing guidance provides a temporary value added tax exemption for Hong Kong and overseas investors in respect of their gains derived from the trading of Chinese securities through Stock Connect. In addition, urban maintenance and construction tax (currently at rates ranging from 1% to 7%), educational surcharge (currently at the rate of 3%) and local educational surcharge (currently at the rate of 2%) (collectively, the "surtaxes") are imposed based on value added tax liabilities, so if SIMC, the Funds' Sub-Advisers or a Fund were liable for value added tax it would also be required to pay the applicable surtaxes.

Taxation of A-Shares. The Ministry of Finance of the PRC, the State Administration of Taxation of the PRC and the CSRC (collectively, the "PRC Authorities") issued the "Notice on the Pilot Program of Shanghai-Hong Kong Stock Connect" Caishui [2014] No.81 ("Notice 81") on October 31, 2014, which states that the capital gain from disposal of A-Shares by foreign investors enterprises via the Shanghai-Hong Kong Stock Connect program will be temporarily exempt from withholding income tax. Notice 81 also states that the dividends derived from A-Shares by foreign investors enterprises are subject to 10% withholding income tax, unless a lower rate is applicable under a relevant tax treaty.


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The PRC Authorities issued the "Notice on the Pilot Program of Shenzhen-Hong Kong Stock Connect" Caishui [2016] No.127 ("Notice 127") on November 5, 2016, which states that the capital gain from disposal of A-Shares by foreign investors enterprises via the Shenzhen-Hong Kong Stock Connect program will be temporarily exempt from withholding income tax. Notice 127 also states that the dividends derived from A-Shares by foreign investors enterprises are subject to 10% withholding income tax, unless a lower rate is applicable under a relevant tax treaty.

Because there is no indication of how long the temporary exemption will remain in effect, the Funds may be subject to such withholding tax in the future. If in the future China begins applying tax rules regarding the taxation of income from A-Shares investment through the Stock Connect, and/or begins collecting capital gains taxes on such investments, a Fund could be subject to withholding tax liability if the Fund determines that such liability cannot be reduced or eliminated by applicable tax treaties. The negative impact of any such tax liability on a Fund's return could be substantial.

SIMC, the Funds' Sub-Advisers or a Fund may also potentially be subject to PRC value added tax at the rate of 6% on capital gains derived from trading of A-Shares and interest income (if any). Existing guidance provides a temporary value added tax exemption for Hong Kong and overseas investors in respect of their gains derived from the trading of Chinese securities through Stock Connect. Because there is no indication how long the temporary exemption will remain in effect, the Funds may be subject to such value added tax in the future. In Addition, surtaxes are imposed based on value added tax liabilities, so if SIMC or the Funds' Sub-Advisers or a Fund were liable for value added tax it would also be required to pay the applicable surtaxes.

Stamp duty under the PRC laws generally applies to the execution and receipt of taxable documents, which includes contracts for the sale of China A-shares traded on stock exchanges in China. In the case of such contracts, the stamp duty is currently imposed on the seller but not on the purchaser, at the rate of 0.1%. The sale or other transfer by the adviser of China A-shares will accordingly be subject to PRC stamp duty, but the Fund will not be subject to PRC stamp duty when it acquires China A-shares. According to the announcement jointly issued by the Ministry of Finance and the State Administration of Taxation of the PRC, starting from August 28, 2023, the stamp duty on securities transactions are reduced by half.

The PRC rules for taxation of Stock Connect are evolving, and the tax regulations to be issued by the PRC State Administration of Taxation and/or PRC Ministry of Finance to clarify the subject matter may apply retrospectively, even if such rules are adverse to a Fund and its shareholders.

Investments in Variable Interest Entities ("VIEs"). In seeking exposure to Chinese companies, a Fund may invest in VIE structures. VIE structures can vary, but generally consist of a U.S.-listed company with contractual arrangements, through one or more wholly-owned special purpose vehicles, with a Chinese company that ultimately provides the U.S.-listed company with contractual rights to exercise control over and obtain economic benefits from the Chinese company. Although the U.S.-listed company in a VIE structure has no equity ownership in the underlying Chinese company, the VIE contractual arrangements permit the VIE structure to consolidate its financial statements with those of the underlying Chinese company. The VIE structure enables foreign investors, such as a Fund, to obtain investment exposure similar to that of an equity owner in a Chinese company in situations in which the Chinese government has restricted the non-Chinese ownership of such company. As a result, an investment in a VIE structure subjects a Fund to the risks associated with the underlying Chinese company. In its efforts to monitor, regulate and/or control foreign investment and participation in the ownership and operation of Chinese companies, including in particular those within the technology, telecommunications and education industries, the Chinese government may intervene or seek to control the operations, structure, or ownership of Chinese companies, including VIEs, to the disadvantage of foreign investors, such as a Fund.

Intervention by the Chinese government with respect to VIE structures may adversely affect both the operations of the underlying Chinese company and the enforceability of the contractual arrangements. If these risks materialize simultaneously, the Fund could face severe losses with no legal recourse.

In addition to the risk of government intervention, a Fund's investment in a VIE structure is subject to risks related to the enforceability of contractual arrangements. For example, the underlying Chinese company (or its officers, directors, or Chinese equity owners) may breach these arrangements, or changes in Chinese law


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may render them unenforceable. If such risks materialize, the Fund may suffer significant losses on its VIE investments with little or no recourse available.

Investments in Russia—Russia launched a large-scale invasion of Ukraine on February 24, 2022, significantly amplifying already existing geopolitical tensions. Russia's actions and the resulting responses by the United States and other countries could increase volatility and uncertainty in the financial markets and adversely affect regional and global economies. The United States and other countries have imposed broad-ranging economic sanctions on Russia, certain Russian individuals, banking entities and corporations, and Belarus as a response to Russia's invasion of Ukraine and may impose sanctions on other countries that provide military or economic support to Russia. The extent and duration of Russia's military actions or future escalation of such hostilities, and the extent and impact of the resulting sanctions (including any retaliatory actions or countermeasures that may be taken by those subject to sanctions, including cyber-attacks) are impossible to predict, but could result in significant market disruptions, including in certain industries or sectors, such as the oil and natural gas markets, and may negatively affect global supply chains, inflation and global growth. These and any related events could have a significant impact on a Fund's performance and the value of the Fund's investments, even though the Fund does not have direct exposure to Russian issuers or issuers in other countries affected by the invasion.

Investments in the Middle East—Armed conflict between Israel and Hamas and other militant groups in the Middle East and related events could cause significant market disruptions and volatility. This conflict could disrupt regional trade and supply chains, potentially affecting U.S. businesses with exposure to the region. Additionally, the Middle East plays a pivotal role in the global energy sector, and prolonged instability could impact oil prices, leading to increased costs for businesses and consumers. These and any related events could significantly impact a Fund's performance and the value of an investment in a Fund, even if the Fund does not have direct exposure to affected issuers.

FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS—Futures contracts (also called "futures") provide for the future sale by one party and purchase by another party of a specified amount of a specific security at a specified future time and at a specified price. An option on a futures contract gives the purchaser the right, in exchange for a premium, to assume a position in a futures contract at a specified exercise price during the term of the option. An index futures contract is a bilateral agreement pursuant to which two parties agree to take or make delivery of an amount of cash equal to a specified dollar amount times the difference between the index value at the close of trading of the contract and the price at which the futures contract is originally struck. No physical delivery of the securities comprising the index is made, and generally contracts are closed out prior to the expiration date of the contract.

A Fund may also invest in Treasury futures, interest rate futures, interest rate swaps, and interest rate swap futures. A Treasury futures contract involves an obligation to purchase or sell Treasury securities at a future date at a price set at the time of the contract. The sale of a Treasury futures contract creates an obligation by the Fund to deliver the amount of certain types of Treasury securities called for in the contract at a specified future time for a specified price. A purchase of a Treasury futures contract creates an obligation by the Fund to take delivery of an amount of securities at a specified future time at a specific price. Interest rate futures can be sold as an offset against the effect of expected interest rate increases and purchased as an offset against the effect of expected interest rate declines. Interest rate swaps are an agreement between two parties where one stream of future interest rate payments is exchanged for another based on a specified principal amount. Interest rate swaps often exchange a fixed payment for a floating payment that is linked to a particular interest rate. Interest rate swap futures are instruments that provide a way to gain swap exposure and the structure features of a futures contract in a single instrument. Swap futures are futures contracts on interest rate swaps that enable purchasers to cash settle at a future date at the price determined by the benchmark rate at the end of a fixed period.

A Fund will reduce the risk that it will be unable to close out a futures contract by only entering into futures contracts that are traded on national futures exchanges regulated by the CFTC (generally, futures must be traded on such exchanges). Subject to their permitted investment strategies, certain Funds may use futures contracts and related options for either hedging purposes or risk management purposes, or to gain exposure to currencies, as well as to enhance the Fund's returns. Instances in which a Fund may use futures contracts and related options for risk management purposes include: (i) attempting to offset changes in the value of securities held or expected


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to be acquired or be disposed of; (ii) attempting to minimize fluctuations in foreign currencies; (iii) attempting to gain exposure to a particular market, index or instrument; or (iv) other risk management purposes. A Fund may use futures contracts for cash equitization purposes, which allows a Fund to invest consistent with its investment strategy while managing daily cash flows, including significant client inflows and outflows.

There are significant risks associated with a Fund's use of futures contracts and options on futures contracts, including: (i) the success of a hedging strategy may depend on SIMC or a Sub-Adviser's ability to predict movements in the prices of individual securities, fluctuations in markets and movements in interest rates; (ii) there may be an imperfect or no correlation between the changes in market value of the securities held by a Fund and the prices of futures and options on futures; (iii) there may not be a liquid secondary market for a futures contract or option; (iv) trading restrictions or limitations may be imposed by an exchange; and (v) government regulations or exchange requirements may restrict trading in futures contracts and options on futures contracts. In addition, some strategies reduce a Fund's exposure to price fluctuations, while others tend to increase its market exposure.

GOVERNMENT NATIONAL MORTGAGE ASSOCIATION SECURITIES—Certain Funds may invest in securities issued by GNMA, a wholly owned U.S. Government corporation that guarantees the timely payment of principal and interest. However, any premiums paid to purchase these instruments are not subject to GNMA guarantees.

GNMA securities represent ownership in a pool of federally insured mortgage loans. GNMA certificates consist of underlying mortgages with a maximum maturity of 30 years. However, due to scheduled and unscheduled principal payments, GNMA certificates have a shorter average maturity and, therefore, less principal volatility than a comparable 30-year mortgage-backed bond. Because prepayment rates vary widely, it is not possible to accurately predict the average maturity of a particular GNMA pool. The scheduled monthly interest and principal payments relating to mortgages in the pool will be "passed through" to investors. GNMA securities differ from conventional bonds in that principal is paid back to the certificate holders over the life of the loan rather than at maturity. As a result, a Fund will receive monthly scheduled payments of principal and interest. In addition, a Fund may receive unscheduled principal payments representing prepayments on the underlying mortgages. Any prepayments will be reinvested at the then-prevailing interest rate.

Although GNMA certificates may offer yields higher than those available from other types of U.S. Government securities, GNMA certificates may be less effective than other types of securities as a means of "locking in" attractive long-term rates because of the prepayment feature. The market value and interest yield of these instruments can vary due to market interest rate fluctuations and early prepayments of underlying mortgages. Due to this prepayment feature, GNMA certificates tend not to increase in value as much as most other debt securities when interest rates decline.

ILLIQUID SECURITIES—Illiquid securities are investments that cannot be sold or disposed of in seven calendar days or less without the sale or disposition significantly changing the market value of the investment. If, subsequent to purchase, a security held by a Fund becomes illiquid, the Fund may continue to hold the security. Because of their illiquid nature, illiquid securities must be priced at fair value as determined in good faith pursuant to procedures approved by the Board. Despite such good faith efforts to determine fair value prices, a Fund's illiquid securities are subject to the risk that the security's fair value price may differ from the actual price that the Fund may ultimately realize upon its sale or disposition. Difficulty in selling illiquid securities may result in a loss or may be costly to a Fund. Under the supervision of the Board, SIMC or the Sub-Adviser, as applicable, determines the liquidity of a Fund's investments. In determining the liquidity of a Fund's investments, SIMC or the Sub-Adviser, as applicable, may consider various factors, including: (i) the frequency and volume of trades and quotations; (ii) the number of dealers and prospective purchasers in the marketplace; (iii) dealer undertakings to make a market; and (iv) the nature of the security and the market in which it trades (including any demand, put or tender features, the mechanics and other requirements for transfer, any letters of credit or other credit enhancement features, any ratings, the number of holders, the method of soliciting offers, the time required to dispose of the security, and the ability to assign or offset the rights and obligations of the security).

INTEREST RATE—Interest rate risk is the risk that a Fund's yield will decline due to changing interest rates. A rise in interest rates typically causes a fall in the value of fixed income securities, including U.S. Government


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securities, in which a Fund invests, whereas a fall in interest rates typically results in the Fund having to invest available cash in instruments with lower interest rates than those of the current portfolio securities. During periods when interest rates are low, a Fund's yield will also be low and the Fund may not generate enough income to pay its expenses or pay a daily dividend. The Fund could even have a negative yield (i.e., it may lose money on an operating basis) during a lower interest rate environment. This could impair the Government, Government II and Treasury II Funds' ability to provide a positive yield and maintain a stable $1.00 share price. Fluctuations in interest rates may also have unpredictable effects on the markets and may affect the liquidity of the fixed-income securities held by a Fund. As a result, it is possible that the Government, Government II and Treasury II Funds would, during these conditions, maintain a substantial portion of its assets in cash, on which it may earn little, if any, income.

Negative Interest Rates. Certain debt instruments have traded at negative yields. A negative yield could be generated by a negative interest rate policy, which is an unconventional central bank monetary policy tool where nominal target interest rates are set with a negative value (i.e., below zero percent) intended to help create self-sustaining growth in the local economy. A negative yield could also be due to excess demand for or scarce supply of a certain security. Negative interest rates may become more prevalent. To the extent the Fund has a bank deposit or holds a debt instrument with a negative interest rate to maturity, the Fund would generate a negative return on that investment. While negative yields can be expected to reduce demand for fixed-income investments trading at a negative interest rate, investors may be willing to continue to purchase such investments for a number of reasons including, but not limited to, price insensitivity, arbitrage opportunities across fixed-income markets or rules-based investment strategies. If negative interest rates become more prevalent in the market, it is expected that investors would seek to reallocate assets to other income-producing assets such as investment grade and high-yield debt instruments, or equity investments that pay a dividend. This increased demand for higher yielding assets may cause the price of such instruments to rise while triggering a corresponding decrease in yield and the value of debt instruments over time.

In a prolonged environment of low to negative interest rates, the Fund's Trustees may consider taking various actions, including enacting mechanisms to seek to maintain a stable NAV per share at $1.00 (such as reducing the number of shares outstanding on a pro rata basis through a reverse distribution mechanism, to the extent permissible by applicable law and its organizational documents) and discontinuing use of the amortized cost method of valuation to maintain a stable NAV of $1 per share and establishing a fluctuating NAV rounded to four decimal places by using available market quotations or equivalents. There is no assurance such measures will result in a stable NAV per share of $1.00.

INTERFUND LENDING AND BORROWING ARRANGEMENTS—The SEC has granted an exemption that permits the Funds to participate in the Program with the SEI Funds. The Program allows the SEI Funds to lend money to and borrow money from each other for temporary or emergency purposes. Participation in the Program is voluntary for both borrowing and lending funds. Interfund loans may be made only when the rate of interest to be charged is more favorable to the lending fund than the Repo Rate and more favorable to the borrowing fund than the Bank Loan Rate. The Bank Loan Rate will be determined using a formula approved by the SEI Funds' Board of Trustees. The interest rate imposed on interfund loans is the average of the Repo Rate and the Bank Loan Rate.

All interfund loans and borrowings must comply with the conditions set forth in the exemption, which are designed to ensure fair and equitable treatment of all participating funds. Each Fund's participation in the Program must be consistent with its investment policies and limitations and is subject to certain percentage limitations. SIMC administers the Program according to procedures approved by the SEI Funds' Board of Trustees. In addition, the Program is subject to oversight and periodic review by the SEI Funds' Board of Trustees.

MORTGAGE-BACKED SECURITIES—Mortgage-backed securities are a class of asset-backed securities representing an interest in a pool or pools of whole mortgage loans (which may be residential mortgage loans or commercial mortgage loans). Mortgage-backed securities held or acquired by the Funds could include (i) obligations guaranteed by federal agencies of the U.S. Government, such as GNMA, which are backed by the "full faith and credit" of the United States, (ii) securities issued by Fannie Mae and Freddie Mac, which are not backed by the "full faith and credit" of the United States but are guaranteed by the U.S. Government as to


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timely payment of principal and interest, (iii) securities (commonly referred to as "private-label RMBS") issued by private issuers that represent an interest in or are collateralized by whole residential mortgage loans without a government guarantee and (iv) CMBS, which are multi-class or pass-through securities backed by a mortgage loan or a pool of mortgage loans secured by commercial property such as industrial and warehouse properties, office buildings, retail space and shopping malls, multifamily properties and cooperative apartments. Because private-label RMBS and CMBS are not issued or guaranteed by the U.S. Government, those securities generally are structured with one or more types of credit enhancement. There can be no assurance, however, that credit enhancements will support full payment to the Funds of the principal and interest on such obligations. In addition, changes in the credit quality of the entity that provides credit enhancement could cause losses to the Funds and affect their share prices.

A Fund may invest in mortgage-backed securities in the form of debt or in the form of "pass-through" certificates. Pass-through certificates, which represent the beneficial ownership interests in the related mortgage loans, differ from debt securities, which generally provide for periodic fixed payments of interest on and principal of the related notes. Mortgage pass-through securities provide for monthly payments that are a "pass-through" of the monthly interest and principal payments (including any prepayments) made by the individual borrowers on the pooled mortgage loans, net of any fees and expenses owed to the servicers of the mortgage loans and other transaction parties that receive payment from collections on the mortgage loans.

The performance of mortgage loans and, in turn, the mortgage-backed securities acquired by a Fund, is influenced by a wide variety of economic, geographic, social and other factors, including general economic conditions, the level of prevailing interest rates, the unemployment rate, the availability of alternative financing and homeowner behavior. Beginning in late 2006, delinquencies, defaults and foreclosures on residential and commercial mortgage loans increased significantly, and they may again increase in the future. In addition, beginning in late 2006, numerous originators and servicers of residential mortgage loans experienced serious financial difficulties and, in many cases, went out of business or were liquidated in bankruptcy proceedings. Those difficulties resulted, in part, from declining markets for their mortgage loans as well as from claims for repurchases of mortgage loans previously sold under provisions that require repurchase in the event of early payment defaults or for breaches of representations and warranties regarding loan characteristics.

Since mid-2007, the residential mortgage market has been subject to extensive litigation and legislative and regulatory scrutiny. The result has been extensive reform legislation and regulations including with respect to loan underwriting, mortgage loan servicing, foreclosure practices and timing, loan modifications, enhanced disclosure and reporting obligations and risk retention. Numerous laws, regulations and rules related to residential mortgage loans generally, and foreclosure actions particularly, have been proposed or enacted by federal, state and local governmental authorities, which may result in delays in the foreclosure process, reduced payments by borrowers, modification of the original terms of mortgage loans, permanent forgiveness of debt, increased prepayments due to the availability of government-sponsored refinancing initiatives and/or increased reimbursable servicing expenses. Any of these factors could result in delays and reductions in distributions to residential mortgage-backed securities and may reduce the amount of investment proceeds to which a Fund would be entitled.

The conservatorship of Fannie Mae and Freddie Mac and the current uncertainty regarding the future status of these organizations may also adversely affect the mortgage market and the value of mortgage-related assets. It remains unclear to what extent the ability of Fannie Mae and Freddie Mac to act as the primary sources of liquidity in the residential mortgage markets, both by purchasing mortgage loans for their own portfolios and by guaranteeing mortgage-backed securities, may be curtailed. Legislators have repeatedly unveiled various plans to reduce and reform the role of Fannie Mae and Freddie Mac in the mortgage market and, possibly, wind down both institutions. Although it is unclear whether, and if so how, those plans may be implemented or how long any such wind-down or reform of Fannie Mae and Freddie Mac, if implemented, would take, a reduction in the ability of mortgage loan originators to access Fannie Mae and Freddie Mac to sell their mortgage loans may adversely affect the financial condition of mortgage loan originators. In addition, any decline in the value of agency securities may affect the value of residential mortgage-backed securities as a whole.


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Since March 13, 2020, there have been a number of government initiatives applicable to federally backed mortgage loans in response to the economic impacts of the COVID-19 outbreak, including foreclosure and eviction moratoria, mortgage forbearance and loan modifications for borrowers and renters experiencing financial hardship due to COVID-19.

Although the effects of COVID-19 have decreased on a relative basis, it is difficult to predict how the government initiatives relating to COVID-19 may affect the federally backed mortgage market, the U.S. mortgage market as a whole and the price of securities relating to the mortgage markets. However, high forbearance rates create a real possibility of billions of dollars of loan servicers' obligations to advance payment to investors in securities backed by mortgages in the absence of borrower payments on the underlying loans. Accordingly, the Funds cannot predict with certainty the extent to which these or similar initiatives in the future may adversely impact the value of the Funds' investments in securities issued by Fannie Mae or Freddie Mac and in investments in securities in the U.S. mortgage industry as a whole.

The rate and aggregate amount of distributions on mortgage-backed securities, and therefore the average lives of those securities and the yields realized by a Fund, will be sensitive to the rate of prepayments (including liquidations) and modifications of the related mortgage loans, any losses and shortfalls on the related mortgage loans allocable to the tranches held by a Fund and the manner in which principal payments on the related mortgage loans are allocated among the various tranches in the particular securitization transaction. Furthermore, mortgage-backed securities are sensitive to changes in interest rates, but may respond to those changes differently from other fixed income securities due to the possibility of prepayment of the mortgage loans. Among other factors, a significant amount of defaults, rapid prepayments or prepayment interest shortfalls may erode amounts available for distributions to a Fund. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Funds' actual yield to maturity, even if the average rate of principal payments is consistent with a Fund's expectations. If prepayments of mortgage loans occur at a rate faster than that anticipated by a Fund, payments of interest on the mortgage-backed securities could be significantly less than anticipated. Similarly, if the number of mortgage loans that are modified is larger than that anticipated by a Fund, payments of principal and interest on the mortgage-backed securities could be significantly less than anticipated.

Collateralized Mortgage Obligations. CMOs are securities collateralized by mortgages, mortgage pass-throughs, mortgage pay-through bonds (bonds representing an interest in a pool of mortgages where the cash flow generated from the mortgage collateral pool is dedicated to bond repayment) and mortgage-backed bonds (general obligations of the issuers payable out of the issuers' general funds and additionally secured by a first lien on a pool of single family detached properties). To the extent a Fund invests in CMOs, the Fund typically will seek to invest in CMOs rated in one of the two highest categories by S&P or Moody's. Many CMOs are issued with a number of classes or series that have different expected maturities. Investors purchasing such CMOs are credited with their portion of the scheduled payments of interest and principal on the underlying mortgages plus all unscheduled prepayments of principal based on a predetermined priority schedule. Accordingly, the CMOs in the longer maturity series are less likely than other mortgage pass-through securities to be prepaid prior to their stated maturity. Although some of the mortgages underlying CMOs may be supported by various types of insurance and some CMOs may be backed by GNMA certificates or other mortgage pass-through securities issued or guaranteed by U.S. Government agencies or instrumentalities, the CMOs themselves are not generally guaranteed.

Real Estate Mortgage Investment Conduits. REMICs are private entities formed for the purpose of holding a fixed pool of mortgages secured by interests in real property. REMIC Certificates issued by Fannie Mae or Freddie Mac represent beneficial ownership interests in a REMIC trust consisting principally of mortgage loans or Fannie Mae, Freddie Mac or GNMA-guaranteed mortgage pass-through certificates. For Freddie Mac REMIC Certificates, Freddie Mac guarantees the timely payment of interest. GNMA REMIC Certificates are backed by the full faith and credit of the U.S. Government.

Parallel Pay Securities; Planned Amortization Class CMOs. Parallel pay CMOs and REMICs are structured to provide payments of principal on each payment date to more than one class. These simultaneous payments are taken into account in calculating the stated maturity date or final distribution date of each class, which


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must be retired by its stated maturity date or final distribution date but may be retired earlier. PAC Bonds generally require payments of a specified amount of principal on each payment date. PAC Bonds are always parallel pay CMOs, with the required principal payment on such securities having the highest priority after interest has been paid to all classes.

Adjustable Rate Mortgage Securities. ARMS are a form of pass-through security representing interests in pools of mortgage loans whose interest rates are adjusted from time to time. The adjustments are usually determined in accordance with a predetermined interest rate index and may be subject to certain limits. Although the value of ARMS, like other debt securities, generally varies inversely with changes in market interest rates (increasing in value during periods of declining interest rates and decreasing in value during periods of increasing interest rates), the value of ARMS should generally be more resistant to price swings than other debt securities because the interest rates of ARMS move with market interest rates. The adjustable rate feature of ARMS will not, however, eliminate fluctuations in the prices of ARMS, particularly during periods of extreme fluctuations in interest rates. Also, because many adjustable rate mortgages only reset on an annual basis, it can be expected that the prices of ARMS will fluctuate to the extent that changes in prevailing interest rates are not immediately reflected in the interest rates payable on the underlying adjustable rate mortgages.

Stripped Mortgage-Backed Securities. Stripped mortgage-backed securities are securities that are created when a U.S. Government agency or a financial institution separates the interest and principal components of a mortgage-backed security and sells them as individual securities. The holder of the PO receives the principal payments made by the underlying mortgage-backed security, while the holder of the IO receives interest payments from the same underlying security. The prices of stripped mortgage-backed securities may be particularly affected by changes in interest rates. As interest rates fall, prepayment rates tend to increase, which tends to reduce prices of IOs and increase prices of POs. Rising interest rates can have the opposite effect.

Estimated Average Life. Due to the possibility of prepayments of the underlying mortgage instruments, mortgage-backed securities generally do not have a known maturity. In the absence of a known maturity, market participants generally refer to an "average life estimate." An average life estimate is a function of an assumption regarding anticipated prepayment patterns and is based upon current interest rates, current conditions in the relevant housing markets and other factors. The assumption is necessarily subjective, and thus different market participants can produce different average life estimates with regard to the same security. There can be no assurance that the estimated average life will be a security's actual average life.

MUNICIPAL SECURITIES—Municipal securities consist of: (i) debt obligations issued by or on behalf of public authorities to obtain funds to be used for various public facilities, refunding outstanding obligations, general operating expenses and lending such funds to other public institutions and facilities, and (ii) certain private activity and industrial development bonds issued by or on behalf of public authorities to obtain funds to provide for the construction, equipment, repair or improvement of privately operated facilities. Additional information regarding municipal securities is described below:

Municipal Bonds. Municipal bonds are debt obligations issued to obtain funds for various public purposes. Municipal bonds include general obligation bonds, revenue or special obligation bonds, private activity and industrial development bonds, moral obligation bonds and participation interests in municipal bonds. General obligation bonds are backed by the taxing power of the issuing municipality. Revenue bonds are backed by the revenues of a project or facility, such as tolls from a toll bridge. Certificates of participation represent an interest in an underlying obligation or commitment, such as an obligation issued in connection with a leasing arrangement. The payment of principal and interest on private activity and industrial development bonds is generally dependent solely on the ability of the facility's user to meet its financial obligations and the pledge, if any, of real and personal property so financed as security for such payment. A Fund may purchase private activity or industrial development bonds if, in the opinion of counsel for the issuers, the interest paid is exempt from federal income tax. Municipal bonds are issued by or on behalf of public authorities to raise money to finance various privately-owned or operated facilities for business and manufacturing, housing, sports and pollution control. These bonds are also used to finance public facilities such as airports, mass transit systems, ports, parking, sewage or solid waste disposal facilities and certain other facilities. The payment of the principal and interest on such bonds is dependent solely on the ability of the facility's user to meet its financial obligations


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and the pledge, if any, of real and personal property so financed as security for such payment. Moral obligation bonds are normally issued by special purpose authorities. Moral obligation bonds are not backed by the full faith and credit of the state, but are generally backed by the agreement of the issuing authority to request appropriations from the state legislative body.

Municipal Leases. Municipal leases are instruments, or participations in instruments, issued in connection with lease obligations or installment purchase contract obligations of municipalities (so-called "municipal lease obligations"). Although municipal lease obligations do not constitute general obligations of the issuing municipality, a lease obligation may be backed by the municipality's covenant to budget for, appropriate funds for and make the payments due under the lease obligation. However, certain lease obligations contain "non-appropriation" clauses, which provide that the municipality has no obligation to make lease or installment purchase payments in future years unless money is appropriated for such purpose in the relevant years. Municipal lease obligations are a form of financing, and the market for such obligations is still developing. Municipal leases will be treated as liquid only if they satisfy criteria set forth in guidelines established by the Board, and there can be no assurance that a market will exist or continue to exist for any municipal lease obligation. Information regarding illiquid securities is provided under the section "Illiquid Securities" above.

Municipal Notes. Municipal notes consist of general obligation notes, tax anticipation notes (notes sold to finance working capital needs of the issuer in anticipation of receiving taxes on a future date), revenue anticipation notes (notes sold to provide needed cash prior to receipt of expected non-tax revenues from a specific source), bond anticipation notes, tax and revenue anticipation notes, certificates of indebtedness, demand notes and construction loan notes. The maturities of the instruments at the time of issue will generally range from three months to one year.

SIMC and/or the Sub-Adviser, as applicable, may rely on the opinion of the issuer's counsel, which is rendered at the time the security is issued, to determine whether the security is fit, with respect to its validity and tax status, to be purchased by a Fund. SIMC, the Sub-Advisers and the Funds do not guarantee this opinion is correct, and there is no assurance that the IRS will agree with such counsel's opinion.

OBLIGATIONS OF DOMESTIC BANKS, FOREIGN BANKS AND FOREIGN BRANCHES OF U.S. BANKS—Investments in bank obligations include obligations of domestic branches of foreign banks and foreign branches of domestic banks. Such investments in domestic branches of foreign banks and foreign branches of domestic banks may involve risks that are different from investments in securities of domestic branches of U.S. banks. These risks may include future unfavorable political and economic developments, possible withholding taxes on interest income, seizure or nationalization of foreign deposits, currency controls, interest limitations, or other governmental restrictions that might affect the payment of principal or interest on the securities held by a Fund. Additionally, these institutions may be subject to less stringent reserve requirements and to different accounting, auditing, reporting and recordkeeping requirements than those applicable to domestic branches of U.S. banks. Bank obligations include the following:

Bankers' Acceptances. Bankers' acceptances are bills of exchange or time drafts drawn on and accepted by a commercial bank. Corporations use bankers' acceptances to finance the shipment and storage of goods and to furnish dollar exchange. Maturities are generally six months or less.

Bank Notes. Bank notes are notes used to represent debt obligations issued by banks in large denominations.

Certificates of Deposit. Certificates of deposit are interest-bearing instruments with a specific maturity. They are issued by banks and savings and loan institutions in exchange for the deposit of funds and can normally be traded in the secondary market prior to maturity. Certificates of deposit with penalties for early withdrawal will be considered illiquid. Additional information about illiquid securities is provided under the section "Illiquid Securities" above.

Time Deposits. Time deposits are non-negotiable receipts issued by a bank in exchange for the deposit of funds. Like a certificate of deposit, a time deposit earns a specified rate of interest over a definite period of time; however, it cannot be traded in the secondary market. Time deposits with a withdrawal penalty or that


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mature in more than seven days are considered to be illiquid. Additional information about illiquid securities is provided under the section "Illiquid Securities" above.

OBLIGATIONS OF SUPRANATIONAL ENTITIES—Supranational entities are entities established through the joint participation of several governments, including the Asian Development Bank, the Inter-American Development Bank, the World Bank, the African Development Bank, the European Economic Community, the European Investment Bank and the Nordic Investment Bank. The governmental members, or "stockholders," usually make initial capital contributions to the supranational entity and, in many cases, are committed to make additional capital contributions if the supranational entity is unable to repay its borrowings. There is no guarantee that one or more stockholders of a supranational entity will continue to make any necessary additional capital contributions. If such contributions are not made, the entity may be unable to pay interest or repay principal on its debt securities, and a Fund may lose money on such investments.

OPTIONS—A Fund may purchase and write put and call options on indexes and enter into related closing transactions. A put option on a security gives the purchaser of the option the right to sell, and the writer of the option the obligation to buy, the underlying security at any time during the option period, or for certain types of options, at the conclusion of the option period or only at certain times during the option period. A call option on a security gives the purchaser of the option the right to buy, and the writer of the option the obligation to sell, the underlying security at any time during the option period, or for certain types of options, at the conclusion of the option period or only at certain times during the option period. The premium paid to the writer is the consideration for undertaking the obligations under the option contract.

A Fund may purchase and write put and call options on foreign currencies (traded on U.S. and foreign exchanges or OTC markets) to manage its exposure to exchange rates.

Put and call options on indexes are similar to options on securities except that options on an index give the holder the right to receive, upon exercise of the option, an amount of cash if the closing level of the underlying index is greater than (or less than, in the case of puts) the exercise price of the option. This amount of cash is equal to the difference between the closing price of the index and the exercise price of the option, expressed in dollars multiplied by a specified number. Thus, unlike options on individual securities, all settlements are in cash, and gain or loss depends on price movements in the particular market represented by the index generally rather than the price movements in individual securities. Options on indexes may, depending on circumstances, involve greater risk than options on securities. Because stock index options are settled in cash, when a Fund writes a call on an index it may not be able to provide in advance for its potential settlement obligations by acquiring and holding the underlying securities.

Each Fund may trade put and call options on securities, securities indexes and currencies, as SIMC or a Sub-Adviser determines is appropriate in seeking to achieve the Fund's investment objective, unless otherwise restricted by the Fund's investment limitations.

The initial purchase (sale) of an option contract is an "opening transaction." In order to close out an option position, a Fund may enter into a "closing transaction," which is simply the sale (purchase) of an option contract on the same security with the same exercise price and expiration date as the option contract originally opened. If a Fund is unable to effect a closing purchase transaction with respect to an option it has written, it will not be able to sell the underlying security until the option expires or the Fund delivers the security upon exercise.

A Fund may purchase put and call options on securities for any lawful purpose, including to protect against a decline in the market value of the securities in its portfolio or to anticipate an increase in the market value of securities that the Fund may seek to purchase in the future. A Fund purchasing put and call options pays a premium for such options. If price movements in the underlying securities are such that exercise of the options would not be profitable for the Fund, loss of the premium paid may be offset by an increase in the value of the Fund's securities or by a decrease in the cost of the acquisition of securities by the Fund.

A Fund may write (i.e., sell) "covered" call options on securities for any lawful purpose, including as a means of increasing the yield on its assets and as a means of providing limited protection against decreases in its market value. Certain Funds may engage in a covered call option writing (selling) program in an attempt to


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generate additional income or provide a partial hedge to another position of the Fund. A call option is "covered" if the Fund either owns the underlying instrument or has an absolute and immediate right (such as a call with the same or a later expiration date) to acquire that instrument. The underlying instruments of such covered call options may consist of individual equity securities, pools of equity securities, ETFs or indexes.

The writing of covered call options is a more conservative investment technique than writing of naked or uncovered options, but capable of enhancing the Fund's total return. When a Fund writes a covered call option, it profits from the premium paid by the buyer but gives up the opportunity to profit from an increase in the value of the underlying security above the exercise price. At the same time, the Fund retains the risk of loss from a decline in the value of the underlying security during the option period. Although the Fund may terminate its obligation by executing a closing purchase transaction, the cost of effecting such a transaction may be greater than the premium received upon its sale, resulting in a loss to the Fund. If such an option expires unexercised, the Fund realizes a gain equal to the premium received. Such a gain may be offset or exceeded by a decline in the market value of the underlying security during the option period. If an option is exercised, the exercise price, the premium received and the market value of the underlying security determine the gain or loss realized by the Fund.

When a Fund writes an option, if the underlying securities do not increase or decrease, as applicable, to a price level that would make the exercise of the option profitable to the holder thereof, the option will generally expire without being exercised and the Fund will realize as profit the premium received for such option. When a call option of which a Fund is the writer is exercised, the Fund will be required to sell the underlying securities to the option holder at the strike price and will not participate in any increase in the price of such securities above the strike price. When a put option of which a Fund is the writer is exercised, the Fund will be required to purchase the underlying securities at a price in excess of the market value of such securities.

A Fund may purchase and write options on an exchange or OTC. OTC options differ from exchange-traded options in several respects. They are transacted directly with dealers and not with a clearing corporation or futures commission merchant, and therefore entail the risk of non-performance by the dealer. OTC options are available for a greater variety of securities and for a wider range of expiration dates and exercise prices than are available for exchange-traded options. Because OTC options are not traded on an exchange, pricing is normally done by reference to information from a market maker. It is the SEC's position that OTC options are generally illiquid. The market value of an option generally reflects the market price of an underlying security. Other principal factors affecting market value include supply and demand, interest rates, the pricing volatility of the underlying security and the time remaining until the expiration date.

Risks. Risks associated with options transactions include: (i) the success of a hedging strategy may depend on an ability to predict movements in the prices of individual securities, fluctuations in markets and movements in interest rates; (ii) there may be an imperfect correlation between the movement in prices of options and the securities underlying them; (iii) there may not be a liquid secondary market for options; and (iv) though a Fund will receive a premium when it writes covered call options, it may not participate fully in a rise in the market value of the underlying security.

REGULATORY REFORM—Changes in the laws and regulations applicable to and governing money market funds, such as Rule 2a-7 under the 1940 Act, can impact the Funds. On July 23, 2014, the SEC voted to amend Rule 2a-7 and other rules and forms related to money market funds. These amendments affect the manner in which the Funds and other money market funds are structured and operated, and may impact Fund expenses, returns and liquidity. The SEC and other government agencies continue to review the regulation of money market funds and may implement certain regulatory changes in the future. In December 2021, the SEC proposed amendments to Rule 2a-7 that, if adopted, would impact the manner in which all types of money market funds operate. The amendments would, among other items, prohibit certain mechanisms for maintaining a stable NAV per share in negative interest rate environments, such as by reducing the number of Fund shares outstanding (including through reverse distribution mechanisms). These and other legal or regulatory changes may negatively impact the Funds.


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The Government, Government II and Treasury II Funds qualify as a "government money market fund" as defined in Rule 2a-7. Accordingly, the Government, Government II and Treasury II Funds must each invest at least 99.5% of its total assets in cash, government securities and/or repurchase agreements collateralized solely by cash or government securities, but, unlike certain other types of money market funds, the Fund is not required to maintain a floating NAV or impose liquidity fees or redemption gates.

REPURCHASE AGREEMENTS—A repurchase agreement is an agreement in which one party sells securities to another party in return for cash, with an agreement to repurchase equivalent securities at an agreed-upon price and on an agreed-upon future date. A Fund may enter into repurchase agreements with financial institutions. The Funds follow certain procedures designed to minimize the risks inherent in such agreements. These procedures include effecting repurchase transactions only with large, well-capitalized and well-established financial institutions deemed creditworthy by SIMC or a Sub-Adviser. The repurchase agreements entered into by a Fund will provide that the underlying collateral at all times shall have a value at least equal to 102% of the resale price stated in the agreement at all times. SIMC and the applicable Sub-Advisers monitor compliance with this requirement as well as the ongoing financial condition and creditworthiness of the counterparty.

If a money market fund decides to "look through" a repurchase agreement counterparty issuer to the underlying collateral for diversification purposes, the collateral posted by the counterparty will be required to be cash items or U.S. Government securities. Further, the money market funds will evaluate the creditworthiness of the counterparty before "look through" treatment.

Under all repurchase agreements entered into by a Fund, the Fund's custodian or its agent must take possession of the underlying collateral. In the event of a default or bankruptcy by a selling financial institution, a Fund will seek to liquidate such collateral. However, the exercising of a Fund's right to liquidate such collateral could involve certain costs or delays and, to the extent that proceeds from any sale upon a default of the obligation to repurchase are less than the repurchase price, the Fund could suffer a loss. A Fund may enter into "tri-party" repurchase agreements. In "tri-party" repurchase agreements, an unaffiliated third party custodian maintains accounts to hold collateral for the Fund and its counterparties and, therefore, the Fund may be subject to the credit risk of those custodians. At times, the investments of a Fund in repurchase agreements may be substantial when, in the view of SIMC or the Sub-Adviser(s), liquidity or other considerations so warrant.

RESTRICTED SECURITIES—Restricted securities are securities that may not be sold freely to the public without registration under the 1933 Act or an exemption from registration. Restricted securities, including securities eligible for re-sale under Rule 144A of the 1933 Act, that are determined to be liquid are not subject to a Fund's limitation on investing in illiquid securities. The determination of whether a restricted security is illiquid is to be made by SIMC or a Sub-Adviser pursuant to guidelines adopted by the Board. Under these guidelines, SIMC or a Sub-Adviser will consider the frequency of trades and quotes for the security, the number of dealers in, and potential purchasers for, the security, dealer undertakings to make a market in the security, and the nature of the security and of the marketplace trades. In purchasing such restricted securities, SIMC and each Sub-Adviser intends to purchase securities that are exempt from registration under Rule 144A under the 1933 Act and Section 4(a)(2) commercial paper issued in reliance on an exemption from registration under Section 4(a)(2) of the 1933 Act, including, but not limited to, Rules 506(b) or 506(c) under Regulation D.

REVERSE REPURCHASE AGREEMENTS AND SALE-BUYBACKS—Reverse repurchase agreements are transactions in which a Fund sells portfolio securities to financial institutions, such as banks and broker-dealers, and agrees to repurchase them at a mutually agreed-upon date and price that is higher than the original sale price. Reverse repurchase agreements are similar to a fully collateralized borrowing by a Fund. Rule 18f-4 under the 1940 Act permits a Fund to enter into reverse repurchase agreements and similar financing transactions, notwithstanding the limitation on the issuance of senior securities in Section 18 of the 1940 Act. The Rule permits a Fund to elect whether to treat a reverse repurchase agreement as a borrowing, subject to the asset coverage requirements of Section 18 of the Act, or as a Derivative Transactions under Rule 18f-4. The Funds have elected to treat all reverse repurchase agreements as Derivative Transactions. See "Derivatives" above.

Reverse repurchase agreements involve risks. Reverse repurchase agreements are a form of leverage, and the use of reverse repurchase agreements by a Fund may increase the Fund's volatility. Reverse repurchase


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agreements are also subject to the risk that the other party to the reverse repurchase agreement will be unable or unwilling to complete the transaction as scheduled, which may result in losses to a Fund. Reverse repurchase agreements also involve the risk that the market value of the securities sold by a Fund may decline below the price at which it is obligated to repurchase the securities. In addition, when a Fund invests the proceeds it receives in a reverse repurchase transaction, there is a risk that those investments may decline in value. In this circumstance, the Fund could be required to sell other investments in order to meet its obligations to repurchase the securities.

In a sale-buyback transaction, a Fund sells an underlying security for settlement at a later date. A sale-buyback is similar to a reverse repurchase agreement, except that in a sale-buyback the counterparty who purchases the security is entitled to receive any principal or interest payments made on the underlying security pending settlement of the Fund's repurchase of the underlying security.

RISKS OF CYBER-ATTACKS—As with any entity that conducts business through electronic means in the modern marketplace, the Funds, and their service providers, may be susceptible to operational and information security risks resulting from cyber-attacks. Cyber-attacks include, among other behaviors, stealing or corrupting data maintained online or digitally, denial of service attacks on websites, the unauthorized monitoring, release, misuse, loss, destruction or corruption of confidential information, unauthorized access to relevant systems, compromises to networks or devices that the Funds and their service providers use to service the Funds' operations, ransomware, operational disruption or failures in the physical infrastructure or operating systems that support the Funds and their service providers, or various other forms of cyber security breaches. Cyber-attacks affecting a Fund, SIMC or any of the Sub-Advisers, a Fund's distributor, custodian, transfer agent, or any other of a Fund's intermediaries or service providers may adversely impact the Fund and its shareholders, potentially resulting in, among other things, financial losses or the inability of Fund shareholders to transact business. For instance, cyber-attacks may interfere with the processing of shareholder transactions, impact the Fund's ability to calculate its NAV, cause the release of private shareholder information or confidential business information, impede trading, subject the Fund to regulatory fines or financial losses and/or cause reputational damage. The Funds may also incur additional costs for cyber security risk management purposes designed to mitigate or prevent the risk of cyber-attacks. Such costs may be ongoing because threats of cyber-attacks are constantly evolving as cyber attackers become more sophisticated and their techniques become more complex. Similar types of cyber security risks are also present for issuers of securities in which a Fund may invest, which could result in material adverse consequences for such issuers and may cause the Fund's investment in such companies to lose value. There can be no assurance that the Funds, the Funds' service providers, or the issuers of the securities in which the Funds invest will not suffer losses relating to cyber-attacks or other information security breaches in the future. A Fund may also experience losses due to systems failures or inadequate system back-up or procedures at the brokerage firm(s) carrying the Fund's positions.

SWAPS, CAPS, FLOORS, COLLARS AND SWAPTIONS—Swaps are centrally-cleared or OTC derivative products in which two parties agree to exchange payment streams calculated by reference to an underlying asset, such as a rate, index, instrument or securities (referred to as the "underlying") and a predetermined amount (referred to as the "notional amount"). The underlying for a swap may be an interest rate (fixed or floating), a currency exchange rate, a commodity price index, a security, group of securities or a securities index, a combination of any of these, or various other rates, securities, instruments, assets or indexes. Swap agreements generally do not involve the delivery of the underlying or principal, and a party's obligations are generally equal to only the net amount to be paid or received under the agreement based on the relative values of the positions held by each party to the swap agreement.

A great deal of flexibility is possible in the way swaps may be structured. For example, in a simple fixed-to-floating interest rate swap, one party makes payments equivalent to a fixed interest rate, and the other party makes payments calculated with reference to a specified floating interest rate, such as SOFR or the prime rate. In a currency swap, the parties generally enter into an agreement to pay interest streams in one currency based on a specified rate in exchange for receiving interest streams denominated in another currency. Currency swaps may involve initial and final exchanges of the currency that correspond to the agreed upon notional amount. The use of currency swaps is a highly specialized activity which involves special investment techniques and


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risks, including settlement risk, non-business day risk, the risk that trading hours may not align, and the risk of market disruptions and restrictions due to government action or other factors.

A Fund may engage in simple or more complex swap transactions involving a wide variety of underlying assets for various reasons. For example, a Fund may enter into a swap (i) to gain exposure to investments (such as an index of securities in a market) or currencies without actually purchasing those stocks or currencies; (ii) to make an investment without owning or taking physical custody of securities or currencies in circumstances in which direct investment is restricted for legal reasons or is otherwise impracticable; (iii) to hedge an existing position; (iv) to obtain a particular desired return at a lower cost to the Fund than if it had invested directly in an instrument that yielded the desired return; or (v) for various other reasons.

Certain Funds may enter into credit default swaps as a buyer or a seller. The buyer in a credit default contract is obligated to pay the seller a periodic stream of payments over the term of the contract provided no event of default has occurred. If an event of default occurs, the seller must pay the buyer the full notional value ("par value") of the underlying in exchange for the underlying. If a Fund is a buyer and no event of default occurs, the Fund will have made a stream of payments to the seller without having benefited from the default protection it purchased. However, if an event of default occurs, the Fund, as a buyer, will receive the full notional value of the underlying that may have little or no value following default. As a seller, a Fund receives a fixed rate of income throughout the term of the contract, provided there is no default. If an event of default occurs, the Fund would be obligated to pay the notional value of the underlying in return for the receipt of the underlying. The value of the underlying received by the Fund, coupled with the periodic payments previously received, may be less than the full notional value it pays to the buyer, resulting in a loss of value to the Fund. Credit default swaps involve different risks than if a Fund invests in the underlying directly. For example, credit default swaps would increase credit risk by providing the Fund with exposure to both the issuer of the referenced obligation (typically a debt obligation) and the counterparty to the credit default swap. Credit default swaps may in some cases be illiquid. Furthermore, the definition of a "credit event" triggering the seller's payment obligations under a credit default swap may not encompass all of the circumstances in which the buyer may suffer credit-related losses on an obligation of a referenced entity.

The Funds may enter into total return swap agreements. Total return swap agreements are contracts in which one party agrees to make periodic payments based on the change in market value of underlying assets, which may include a specified security, basket of securities, defined portfolios of bonds, loans and mortgages, or securities indexes during the specified period, in return for periodic payments based on a fixed or variable interest rate or the total return from other underlying assets. Total return swap agreements may be used to obtain exposure to a security or market without owning or taking physical custody of such security or market.

Total return swap agreements may effectively add leverage to a Fund's portfolio because, in addition to its total net assets, a Fund would be subject to investment exposure on the notional amount of the swap. Total return swaps are a mechanism for the user to accept the economic benefits of asset ownership without utilizing the balance sheet. The other leg of the swap is spread to reflect the non-balance sheet nature of the product. Total return swaps can be designed with any underlying asset agreed between two parties. Typically, no notional amounts are exchanged with total return swaps. Total return swap agreements entail the risk that a party will default on its payment obligations to the Fund thereunder. Swap agreements also entail the risk that a Fund will not be able to meet its obligation to the counterparty. Generally, a Fund will enter into total return swaps on a net basis (i.e., the two payment streams are netted out with the Fund receiving or paying, as the case may be, only the net amount of the two payments). Fully funded total return swaps have economic and risk characteristics similar to credit-linked notes, which are described above.

Caps, floors, collars and swaptions are privately-negotiated option-based derivative products. Like a put or call option, the buyer of a cap or floor pays a premium to the writer. In exchange for that premium, the buyer receives the right to a payment equal to the differential if the specified index or rate rises above (in the case of a cap) or falls below (in the case of a floor) a pre-determined strike level. Like swaps, obligations under caps and floors are calculated based upon an agreed notional amount, and, like most swaps (other than foreign currency swaps), the entire notional amount is not exchanged. A collar is a combination product in which one party buys a cap from and sells a floor to another party. Swaptions give the holder the right to enter into a swap. A Fund


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may use one or more of these derivative products in addition to or in lieu of a swap involving a similar rate or index.

Under current market practice, swaps, caps, collars and floors between the same two parties are generally documented under a "master agreement." In some cases, options and forward contracts between the parties may also be governed by the same master agreement. In the event of a default, amounts owed under all transactions entered into under, or covered by, the same master agreement would be netted, and only a single payment would be made.

Generally, a Fund would calculate the obligations of the swap agreements' counterparties on a "net basis." Consequently, a Fund's current obligation (or rights) under a swap agreement will generally be equal only to the net amount to be paid or received under the agreement based on the relative values of the positions held by each counterparty to the swap agreement (the "net amount"). A Fund's current obligation under a swap agreement will be accrued daily (offset against any amounts owed to the Fund).

The swap market has grown substantially in recent years with a large number of banks and investment banking firms acting both as principals and as agents using standardized swap agreements. As a result, the use of swaps has become more prevalent in comparison with the markets for other similar instruments that are also traded in OTC markets.

Swaps and other derivatives involve risks. One significant risk in a swap, cap, floor, collar or swaption is the volatility of the specific interest rate, currency or other underlying that determines the amount of payments due to and from a Fund. This is true whether these derivative products are used to create additional risk exposure for a Fund or to hedge, or manage, existing risk exposure. If under a swap, cap, floor, collar or swaption agreement a Fund is obligated to make a payment to the counterparty, the Fund must be prepared to make the payment when due. A Fund could suffer losses with respect to such an agreement if the Fund is unable to terminate the agreement or reduce its exposure through offsetting transactions. Further, the risks of caps, floors and collars, like put and call options, may be unlimited for the seller if the cap or floor is not hedged or covered, but is limited for the buyer.

Because under swap, cap, floor, collar and swaption agreements a counterparty may be obligated to make payments to a Fund, these derivative products are subject to risks related to the counterparty's creditworthiness, in addition to other risks discussed in this SAI. If a counterparty defaults, a Fund's risk of loss will consist of any payments that the Fund is entitled to receive from the counterparty under the agreement (this may not be true for currency swaps that require the delivery of the entire notional amount of one designated currency in exchange for the other). Upon default by a counterparty, however, a Fund may have contractual remedies under the swap agreement.

A Fund will enter into swaps only with counterparties that SIMC or a Sub-Adviser believes to be creditworthy.

The swap market is a relatively new market for which regulations are still being developed. The Dodd-Frank Act has substantially altered and increased the regulation of swaps. Swaps are broadly defined in the Dodd-Frank Act, CFTC rules and SEC rules, and also include commodity options and NDFs. Additionally, the Dodd-Frank Act divided the regulation of swaps between commodity swaps (such as swaps on interest rates, currencies, physical commodities, broad based stock indexes, and broad based credit default swap indexes), regulated by the CFTC, and security based swaps (such as equity swaps and single name credit default swaps), regulated by the SEC. The CFTC will determine which categories of swaps will be required to be traded on regulated exchange-like platforms, such as swap execution facilities, and which will be required to be centrally cleared. Cleared swaps must be cleared through futures commission merchants registered with the CFTC, and such futures commission merchants will be required to collect margin from customers for such cleared swaps. Additionally, all swaps are subject to reporting to a swap data repository. Dealers in swaps are required to register with the CFTC as swap dealers and are required to comply with extensive regulations regarding their external and internal business conduct practices, regulatory capital requirements, and rules regarding the holding of counterparty collateral.


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U.S. GOVERNMENT SECURITIES—Examples of types of U.S. Government obligations in which a Fund may invest include U.S. Treasury obligations and the obligations of U.S. Government agencies or U.S. Government sponsored entities such as Federal Home Loan Banks, Federal Farm Credit Banks, Federal Land Banks, the FHA, the Farmers Home Administration, the Export-Import Bank of the United States, the Small Business Administration, Fannie Mae, GNMA, the General Services Administration, the Student Loan Marketing Association, the Central Bank for Cooperatives, Freddie Mac, Federal Intermediate Credit Banks, the Maritime Administration and other similar agencies. Whether backed by the full faith and credit of the U.S. Treasury or not, U.S. Government securities are not guaranteed against price movements due to fluctuating interest rates.

If the total public debt of the U.S. Government as a percentage of gross domestic product reaches high levels as a result of combating financial downturn or otherwise, such high levels of debt may create certain systemic risks if sound debt management practices are not implemented. A high national debt level may increase market pressures to meet government funding needs, which may increase borrowing costs and cause a government to issue additional debt, thereby increasing the risk of refinancing. A high national debt also raises concerns that a government may be unable or unwilling to repay the principal or interest on its debt when due. Unsustainable debt levels can decline the valuation of currencies, can prevent a government from implementing effective counter-cyclical fiscal policy during economic downturns, and can contribute to market volatility.

An increase in national debt levels may also necessitate the need for the U.S. Congress to negotiate adjustments to the statutory debt ceiling to increase the cap on the amount the U.S. Government is permitted to borrow to meet its existing obligations and finance current budget deficits. Future downgrades could increase volatility in domestic and foreign financial markets, result in higher interest rates, lower prices of U.S. Treasury securities and increase the costs of different kinds of debt. Any controversy or ongoing uncertainty regarding statutory debt ceiling negotiations may impact the U.S. long-term sovereign credit rating and may cause market uncertainty. As a result, market prices and yields of securities supported by the full faith and credit of the U.S. government may be adversely affected. Although remote, it is at least theoretically possible that under certain scenarios the U.S. Government could default on its debt, including U.S. Treasury securities.

Receipts. Receipts are interests in separately-traded interest and principal component parts of U.S. Government obligations that are issued by banks or brokerage firms and are created by depositing U.S. Government obligations into a special account at a custodian bank. The custodian holds the interest and principal payments for the benefit of the registered owners of the certificates or receipts. The custodian arranges for the issuance of the certificates or receipts evidencing ownership and maintains the register. TRs and STRIPS are interests in accounts sponsored by the U.S. Treasury. Receipts are sold as zero coupon securities, which means that they are sold at a substantial discount and redeemed at face value at their maturity date without interim cash payments of interest or principal.

U.S. Treasury Obligations. U.S. Treasury obligations consist of bills, notes and bonds issued by the U.S. Treasury and separately traded interest and principal component parts of such obligations that are transferable through the federal book-entry systems known as STRIPS and TRs.

U.S. Government Zero Coupon Securities. STRIPS and receipts are sold as zero coupon securities; that is, fixed income securities that have been stripped of their unmatured interest coupons. Zero coupon securities are sold at a (usually substantial) discount and redeemed at face value at their maturity date without interim cash payments of interest or principal. The amount of this discount is accreted over the life of the security, and the accretion constitutes the income earned on the security for both accounting and tax purposes. Because of these features, the market prices of zero coupon securities are generally more volatile than the market prices of securities that have similar maturity but that pay interest periodically. Zero coupon securities are likely to respond to a greater degree to interest rate changes than are non-zero coupon securities with similar maturities and credit qualities.

U.S. Government Agencies. Some obligations issued or guaranteed by agencies of the U.S. Government are supported by the full faith and credit of the U.S. Treasury (e.g., Treasury bills, notes and bonds, and securities guaranteed by GNMA), others are supported by the right of the issuer to borrow from the U.S. Treasury (e.g., obligations of Federal Home Loan Banks), while still others are supported only by the credit of the instrumentality (e.g., obligations of Fannie Mae). Guarantees of principal by agencies or instrumentalities of


S-30


the U.S. Government may be a guarantee of payment at the maturity of the obligation so that, in the event of a default prior to maturity, there might not be a market and thus no means of realizing on the obligation prior to maturity. Guarantees as to the timely payment of principal and interest neither extend to the value or yield of these securities nor to the value of a Fund's shares.

VARIABLE AND FLOATING RATE INSTRUMENTS—Certain obligations may carry variable or floating rates of interest and may involve a conditional or unconditional demand feature. Such instruments bear interest at rates that are not fixed, but that vary with changes in specified market rates or indexes. The interest rates on these securities may be reset daily, weekly, quarterly, or some other reset period. There is a risk that the current interest rate on such obligations may not accurately reflect existing market interest rates. A demand instrument with a demand notice exceeding seven days may be considered illiquid if there is no secondary market for such security.

WHEN-ISSUED AND DELAYED DELIVERY SECURITIES—When-issued and delayed delivery basis, including "TBA" (to be announced) basis, transactions involve the purchase of an instrument with payment and delivery taking place in the future. Delivery of and payment for these securities may occur a month or more after the date of the purchase commitment. A TBA transaction is a method of trading mortgage-backed securities. In a TBA transaction, the buyer and seller agree upon general trade parameters such as agency, settlement date, par amount and price. The actual pools delivered generally are determined two days prior to the settlement date. The interest rate realized on these securities is fixed as of the purchase date, and no interest accrues to a Fund before settlement. These securities are subject to market fluctuation due to changes in market interest rates, and it is possible that the market value of these securities at the time of settlement could be higher or lower than the purchase price if the general level of interest rates has changed. Although a Fund will generally purchase securities on a when-issued or forward commitment basis with the intention of actually acquiring securities for its portfolio, the Fund may dispose of a when-issued security or forward commitment prior to settlement if SIMC or a Sub-Adviser deems it appropriate. Rule 18f-4 under 1940 Act permits a Fund to enter into when-issued or delayed delivery basis securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the 1940 Act, provided that the Fund intends to physically settle the transaction and the transaction will settle within 35 days of its trade date. If a when-issued or delayed delivery basis security does not satisfy those requirements, the Fund would need to comply with Rule 18f-4 under the 1940 Act with respect to its when issued or delayed delivery transactions, which are considered Derivative Transactions under the Rule. See "Derivatives" above.

INVESTMENT LIMITATIONS

The following are fundamental and non-fundamental policies of the Funds. Except with regard to the limitation on investing in illiquid investments and borrowings, the following percentages will apply at the time of the purchase of a security and shall not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of a purchase of such security.

Fundamental Policies

The following investment limitations are fundamental policies of each Fund, which cannot be changed with respect to a Fund without the consent of the holders of a majority of that Fund's outstanding shares. The term "majority of outstanding shares" means the vote of: (i) 67% or more of a Fund's shares present at a meeting, if more than 50% of the outstanding shares of the Fund are present or represented by proxy; or (ii) more than 50% of a Fund's outstanding shares, whichever is less.

Each of the Government, Government II, Treasury II, Ultra Short Duration Bond, Short-Duration Government and GNMA Funds may not:

  1.  Purchase securities of an issuer that would cause the Fund to fail to satisfy the diversification requirement for a diversified management company under the 1940 Act, the rules or regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.


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  2.  Concentrate investments in a particular industry or group of industries, as concentration is defined under the 1940 Act, the rules and regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.

  3.  Borrow money or issue senior securities (as defined under the 1940 Act), except to the extent permitted under the 1940 Act, the rules and regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.

  4.  Make loans, except to the extent permitted under the 1940 Act, the rules and regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.

  5.  Purchase or sell commodities or real estate, except to the extent permitted under the 1940 Act, the rules and regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.

  6.  Underwrite securities issued by other persons, except to the extent permitted under the 1940 Act, the rules and regulations thereunder or any exemption therefrom, as such statute, rules or regulations may be amended or interpreted from time to time.

Non-Fundamental Policies

The following investment limitations are non-fundamental policies of the Government, Government II and Treasury II Funds and may be changed by the Board without a vote of shareholders.

Each of the Government, Government II and Treasury II Funds may not:

  1.  Purchase securities of any issuer (except securities issued or guaranteed by the U.S. Government, its agencies or instrumentalities or securities of other investment companies), if as a result, more than 5% of the total assets of a Fund would be invested in the securities of such issuer or if a Fund would acquire more than 10% of the voting securities of such issuer; provided, however, each Fund may invest up to 25% of its total assets without regard to this restriction as permitted by Rule 2a-7 under the 1940 Act.

  2.  Purchase any securities which would cause 25% or more of the total assets of a Fund to be invested in the securities of one or more issuers conducting their principal business activities in the same industry, provided that this limitation does not apply to investments in: (i) certificates of deposit, commercial paper, bankers' acceptances or similar instruments issued or guaranteed by domestic banks and U.S. branches of foreign banks, which a Fund has determined to be subject to the same regulation as U.S. banks, or (ii) obligations issued or guaranteed by the U.S. Government, its agencies or instrumentalities.

  3.  Borrow money except for temporary or emergency purposes and then only in an amount not exceeding 10% of the value of the total assets of that Fund. This borrowing provision is included solely to facilitate the orderly sale of portfolio securities to accommodate substantial redemption requests if they should occur and is not for investment purposes. All borrowings will be repaid before the Fund makes additional investments and any interest paid on such borrowings will reduce the income of that Fund.

  4.  Make loans, except that a Fund may purchase or hold debt instruments in accordance with its investment objective, enter into repurchase agreements, loan its portfolio securities, and participate in the Program. In the case of the Government II Fund, repurchase agreements maturing in more than seven days, restricted securities and other illiquid securities are not to exceed, in the aggregate, 5% of the Fund's net assets.

  5.  Pledge, mortgage or hypothecate assets except to secure temporary borrowings permitted by a Fund's borrowing policy in aggregate amounts not to exceed 10% of the net assets of such Fund taken at fair market value at the time of the incurrence of such loan.

  6.  Purchase or sell real estate, real estate limited partnership interests, commodities or commodities contracts including futures contracts. However, to the extent consistent with its investment objective and policies, a Fund (other than Government II Fund) may: (i) invest in securities of issuers engaged in the real estate business or the business of investing in real estate (including interests in limited partnerships owning or


S-32


otherwise engaged in the real estate business or the business of investing in real estate) and securities which are secured by real estate or interest therein; (ii) hold or sell real estate received in connection with securities it holds or held; or (iii) trade in futures contracts and options on futures contracts (including options on currencies). In addition, the Government II Fund, subject to its permitted investments, may purchase obligations issued by companies which invest in real estate, commodities or commodities contracts.

  7.  Make short sales of securities, maintain a short position or purchase securities on margin, except that a Fund may obtain short-term credits as necessary for the clearance of security transactions.

  8.  Acquire any Illiquid Security if, immediately after the acquisition, the Fund would have invested more than 5% of its Total Assets in illiquid securities. Capitalized terms have the meaning given to such terms in Rule 2a-7 under the 1940 Act.

  9.  With respect to the Government II Fund, issue senior securities (as defined in the 1940 Act) except in connection with permitted borrowings as described in its Prospectuses and its SAI or as permitted by rule, regulation or order of the SEC.

The following investment limitations are non-fundamental policies of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. These non-fundamental policies, other than with respect to Item 1 below, may be changed by the Board without shareholder approval.

Each of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds may not:

  1.  With respect to 75% of its assets: (i) purchase the securities of any issuer (except securities issued or guaranteed by the U.S. Government, its agencies or instrumentalities and securities of other investment companies), if as a result, more than 5% of its total assets would be invested in the securities of such issuer; or (ii) acquire more than 10% of the voting securities of any one issuer.

  2.  Purchase any securities which would cause 25% or more of the total assets of the Fund to be invested in the securities of one or more issuers conducting their principal business activities in the same industry, provided that this limitation does not apply to investments in (a) domestic banks and (b) obligations issued or guaranteed by the U.S. Government or its agencies and instrumentalities.

  3.  Borrow money except for temporary or emergency purposes and then only in an amount not exceeding 10% of the value of the total assets of that Fund. This borrowing provision is included solely to facilitate the orderly sale of portfolio securities to accommodate substantial redemption requests if they should occur and is not for investment purposes. All borrowings will be repaid before the Fund makes additional investments and any interest paid on such borrowings will reduce the income of that Fund.

  4.  Issue senior securities (as defined in the 1940 Act) except in connection with permitted borrowings as described in its Prospectuses and its SAI or as permitted by rule, regulation or order of the SEC.

  5.  Make loans, except that each Fund: (a) may purchase or hold debt instruments in accordance with its investment objectives and policies; (b) may enter into repurchase agreements, provided that repurchase agreements maturing in more than seven days, restricted securities and other illiquid securities are not to exceed, in the aggregate, 15% of the Fund's net assets; (c) may engage in securities lending as described in this SAI; and (d) may participate in the Program.

  6.  Pledge, mortgage or hypothecate assets except to secure temporary borrowings permitted by a Fund's borrowing limitation described above in aggregate amounts not to exceed 10% of the net assets of such Fund taken at current value at the time of the incurrence of such loan.

  7.  Make short sales of securities, maintain a short position or purchase securities on margin, except that the Funds may obtain short-term credits as necessary for the clearance of security transactions.

  8.  Purchase illiquid investments, i.e., any investment that the fund reasonably expects cannot be sold in current market conditions in seven calendar days without significantly changing the market value of the investment, if, in the aggregate, more than 15% of its net assets would be invested in illiquid securities.


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Unregistered securities sold in reliance on the exemption from registration in Section 4(a)(2) of the 1933 Act and securities exempt from registration on re-sale pursuant to Rule 144A of the 1933 Act may be treated as liquid securities under procedures adopted by the Board. Rule 144A securities are securities that are traded in the institutional market pursuant to an exemption from registration. Rule 144A securities may not be as liquid as exchange-traded securities because they may only be resold to certain qualified institutional buyers.

Other Policies. The Funds are prohibited from acquiring any securities of registered open-end investment companies or registered unit investment trusts in reliance on section 12(d)(1)(G) or section 12(d)(1)(F) of the 1940 Act.

The following descriptions of the 1940 Act may assist shareholders in understanding the above policies and restrictions.

Diversification. Under the 1940 Act, a diversified investment management company, as to 75% of its total assets, may not purchase securities of any issuer (other than U.S. Government securities or securities of other investment companies) if, as a result, more than 5% of its total assets would be invested in the securities of such issuer, or more than 10% of the issuer's outstanding voting securities would be held by the fund. Under applicable federal securities laws, the diversification of a mutual fund's holdings is measured at the time a fund purchases a security. If a Fund holds securities that perform well on a relative basis, the value of those securities could appreciate such that the value of the Fund's securities that constitute more than 5% of the Fund's total assets, in the aggregate, might exceed 25% of the Fund's total assets. In these circumstances, the Adviser or applicable Sub-Adviser might determine that it is in the best interests of a Fund's shareholders not to reduce one or more of the Fund's holdings in securities that constitute more than 5% of the Fund's total assets. If the Adviser or applicable Sub-Adviser makes such a determination, a Fund's holdings in such securities would continue to exceed 25% of the Fund's total assets, and the Fund would not purchase any additional shares of securities that constituted more than 5% of the Fund's total assets. The Fund would continue to qualify as a diversified fund under applicable federal securities laws. If more than 25% of a Fund's assets were invested, in the aggregate, in securities of issuers that individually represented more than 5% of the Fund's total assets, the Fund would be subject to the risk that its performance could be disproportionately affected by the performance of such securities. Money market funds are subject to additional diversification requirements set forth in Rule 2a-7 under the 1940 Act.

Concentration. The SEC has presently defined concentration as investing 25% or more of an investment company's net assets in an industry or group of industries, with certain exceptions. For purposes of a Fund's concentration policy, the Fund may classify and re-classify companies in a particular industry and define and re-define industries in any reasonable manner, consistent with SEC and SEC staff guidance.

Borrowing. The 1940 Act presently allows a fund to borrow from any bank (including pledging, mortgaging or hypothecating assets) in an amount up to 331/3% of its total assets (not including temporary borrowings not in excess of 5% of its total assets). In accordance with Rule 18f-4 under the 1940 Act, when a fund engages in reverse repurchase agreements and similar financing transactions, the fund may either (i) maintain asset coverage of at least 300% with respect to such transactions and any other borrowings in the aggregate, or (ii) treat such transactions as "derivative transactions" and comply with Rule 18f-4 with respect to such transactions. Transactions that are treated as derivatives for purposes of Rule 18f-4, shall not be regarded as borrowings for the purposes of a fund's investment limitations.

Lending. Under the 1940 Act, a fund may only make loans if expressly permitted by its investment policies. Each Fund's investment policy on lending is set forth above.

Underwriting. Under the 1940 Act, underwriting securities involves a fund purchasing securities directly from an issuer for the purpose of selling (distributing) them or participating in any such activity either directly or indirectly. Under the 1940 Act, a diversified fund may not make any commitment as underwriter, if immediately thereafter the amount of its outstanding underwriting commitments, plus the value of its investments in securities of issuers (other than investment companies) of which it owns more than 10% of the outstanding voting securities, exceeds 25% of the value of its total assets.


S-34


Real Estate. The 1940 Act does not directly restrict a fund's ability to invest in real estate, but does require that every fund have a fundamental investment policy governing such investments. Certain Funds have adopted a fundamental policy that would permit direct investment in real estate. However, these Funds have a non-fundamental investment limitation that prohibits the Funds from investing directly in real estate. This non-fundamental policy may be changed only by vote of such Fund's Board.

Senior Securities. Senior securities may include any obligation or instrument issued by a fund evidencing indebtedness. The 1940 Act generally prohibits funds from issuing senior securities, although certain transactions are not treated as senior securities, such as certain borrowings, short sales, reverse repurchase agreements, firm commitment agreements and standby commitments.

THE ADMINISTRATOR AND TRANSFER AGENT

General. SEI Investments Global Funds Services (the "Administrator"), a Delaware statutory trust, has its principal business offices at One Freedom Valley Drive, Oaks, Pennsylvania 19456. The Administrator also serves as the transfer agent for the Funds (the "Transfer Agent"). SIMC, a wholly owned subsidiary of SEI Investments Company ("SEI"), is the owner of all beneficial interest in the Administrator and Transfer Agent. SEI and its subsidiaries and affiliates, including the Administrator, are leading providers of fund evaluation services, trust accounting systems, and brokerage and information services to financial institutions, institutional investors and money managers. The Administrator and its affiliates also serve as administrator or sub-administrator to other mutual funds.

Administration Agreement with the Trust. The Trust and the Administrator have entered into an administration and transfer agency agreement (the "Administration Agreement"). Under the Administration Agreement, the Administrator provides the Trust with administrative and transfer agency services or employs certain other parties, including its affiliates, who provide such services. Such services generally include, but are not limited to:

•  maintaining books and records related to a Fund's cash and position reconciliations, and portfolio transactions;

•  preparation of financial statements and other reports for the Funds;

•  calculating the NAV of the Funds in accordance with the Funds' valuation policies and procedures;

•  tracking income and expense accruals and processing disbursements to vendors and service providers;

•  providing performance, financial and expense information for registration statements and board materials;

•  providing certain tax monitoring and reporting and all necessary office;

•  providing space, equipment, personnel and facilities;

•  maintaining share transfer records;

•  reviewing account opening documents and subscription and redemption requests;

•  calculating and distributing required ordinary income and capital gains distributions; and

•  providing anti-money laundering program services.

The Administration Agreement provides that the Administrator shall not be liable for any error of judgment or mistake of law or for any loss suffered by the Trust in connection with the matters to which the Administration Agreement relates, except a loss resulting from willful misfeasance, bad faith or gross negligence on the part of the Administrator in the performance of its duties or from the reckless disregard of its duties and obligations thereunder.


S-35


The Administration Agreement shall remain effective for the initial term of the Agreement and each renewal term thereof unless earlier terminated: (a) by a vote of a majority of the Trustees on not less than 60 days' written notice to the Administrator; or (b) by the Administrator on not less than 90 days' written notice to the Trust.

As disclosed in the applicable Prospectuses, certain voluntary and contractual fee waivers and reimbursement arrangements by the Administrator were in effect during the fiscal year ended January 31, 2025. The Administrator has agreed to waive a portion of its entire fee, for various classes of shares in various Funds, to limit total annual expenses up to the following amounts (expressed as a percentage of the Funds' average annual daily net assets):

    Government
Fund
  Government II
Fund
  Treasury II
Fund
 

Institutional

   

0.20

%(1)

   

N/A

     

N/A

   

Class F

   

N/A

     

0.20

%(2)

   

0.20

%(2)

 

Admin Class

   

0.35

%(1)

   

N/A

     

N/A

   

Wealth Class

   

0.35

%(1)

   

N/A

     

N/A

   
    Ultra
Short
Duration
Bond
Fund
  Short-Duration
Government
Fund
  GNMA
Fund
 

Class F

   

0.38

%(1)

   

0.48

%(1)

   

0.63

%(1)

 

Class Y

   

0.30

%(1)

   

0.33

%(1)

   

0.38

%(1)

 

(1)  Represents a voluntary cap that may be discontinued at any time.

(2)  Represents a contractual cap effective through May 31, 2026, to be changed only by Board approval.

Administration Fees. For its administrative services, the Administrator receives a fee, which is calculated based upon the average daily net assets of each Fund and paid monthly by the Trust at the following annual rates as set forth in the chart below:

For the Government, Government II and Treasury II Funds:

   

Administration Fee

 

On the first $1.5 billion of Assets;

   

0.150

%

 

on the next $500 million of Assets;

   

0.1375

%

 

on the next $500 million of Assets;

   

0.1250

%

 

on the next $500 million of Assets;

   

0.1125

%

 

on Assets over $3 billion.

   

0.100

%

 

For the GNMA, Ultra Short Duration Bond and Short-Duration Government Funds:

   

Administration Fee

 

On the first $1.5 billion of Assets;

   

0.200

%

 

on the next $500 million of Assets;

   

0.1775

%

 

on the next $500 million of Assets;

   

0.1550

%

 

on the next $500 million of Assets;

   

0.1325

%

 

on Assets over $3 billion.

   

0.110

%

 


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For each Fund the following table shows: (i) the dollar amount of fees paid to the Administrator by the Funds; and (ii) the dollar amount of the Administrator's contractual and voluntary fees waived and/or reimbursed for the fiscal years ended January 31, 2023, 2024 and 2025:

    Administration Fees
Paid (000)
  Administration
Fees Waived or
Reimbursed (000)
 

 

2023

 

2024

 

2025

 

2023

 

2024

 

2025

 
Government Fund  

$

11,234

   

$

9,874

   

$

9,149

   

$

880

   

$

0

   

$

517

   
Government II Fund  

$

3,073

   

$

2,913

   

$

2,130

   

$

349

   

$

243

   

$

275

   
Treasury II Fund  

$

758

   

$

727

   

$

830

   

$

104

   

$

108

   

$

121

   
Ultra Short Duration Bond Fund  

$

652

   

$

511

   

$

420

   

$

211

   

$

190

   

$

150

   
Short-Duration Government Fund  

$

1,371

   

$

1,195

   

$

1,276

   

$

0

   

$

0

   

$

0

   
GNMA Fund  

$

114

   

$

93

   

$

37

   

$

3

   

$

9

   

$

16

   

THE ADVISER AND SUB-ADVISERS

General. SIMC is a wholly owned subsidiary of SEI (NASDAQ: SEIC), a leading global provider of outsourced asset management, investment processing and investment operations solutions. The principal business address of SIMC and SEI is One Freedom Valley Drive, Oaks, Pennsylvania 19456. SEI was founded in 1968 and is a leading provider of investment solutions to banks, institutional investors, investment advisers and insurance companies. As of December 31, 2024, SIMC had approximately $198.14 billion in assets under management.

Manager of Managers Structure. SIMC is the investment adviser to each of the Funds and operates as a "manager of managers." SIMC and the Trust have obtained an exemptive order from the SEC that permits SIMC, with the approval of the Trustees, to hire, retain or terminate sub-advisers unaffiliated with SIMC for the Funds without submitting the sub-advisory agreements to a vote of the Funds' shareholders. Among other things, the exemptive relief permits the disclosure of only the aggregate amount payable by SIMC under all such sub-advisory agreements. The Funds will notify shareholders in the event of any addition or change in the identity of their sub-advisers.

Subject to Board review, SIMC allocates and, when appropriate, reallocates the Funds' assets to the Sub-Advisers, monitors and evaluates the Sub-Advisers' performance and oversees the Sub-Advisers' compliance with the Funds' investment objectives, policies and restrictions. SIMC has the ultimate responsibility for the investment performance of the Funds due to its responsibility to oversee Sub-Advisers and recommend their hiring, termination and replacement.

Advisory and Sub-Advisory Agreements.

The Trust and SIMC have entered into an investment advisory agreement (the "Advisory Agreement"). Pursuant to the Advisory Agreement, SIMC oversees the investment advisory services provided to the Funds and may manage the cash portion of the Funds' assets. Pursuant to separate sub-advisory agreements (the "Sub-Advisory Agreements" and, together with the Advisory Agreement, the "Investment Advisory Agreements") with SIMC, and under the supervision of SIMC and the Board, one or more Sub-Advisers are responsible for the day-to-day investment management of all or a distinct portion of the assets of the Funds. The Sub-Advisers are also responsible for managing their employees who provide services to the Funds.

Each Investment Advisory Agreement sets forth a standard of care, pursuant to which the Adviser or Sub-Adviser, as applicable, is responsible for performing services to the Funds, and also includes liability and indemnification provisions.

The continuance of each Investment Advisory Agreement after the first two (2) years must be specifically approved at least annually: (i) by the vote of a majority of the outstanding shares of that Fund or by the Trustees; and (ii) by the vote of a majority of the Trustees who are not parties to such Investment Advisory Agreement or "interested persons" of any party thereto, cast in person at a meeting called for the purpose of voting on such approval. Each Investment Advisory Agreement will terminate automatically in the event of its assignment and


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is terminable at any time without penalty by the Trustees of the Trust or, with respect to a Fund, by a majority of the outstanding shares of that Fund, on not less than 30 days' nor more than 60 days' written notice to SIMC or the Fund's Sub-Adviser, as applicable, or by SIMC or the Fund's Sub-Adviser, as applicable, on 90 days' written notice to the Trust.

In accordance with a separate exemptive order that the Trust and SIMC have obtained from the SEC, the Board may approve a new sub-advisory agreement or a material amendment to an existing sub-advisory agreement at a meeting that is not in person, subject to certain conditions, including that the Trustees are able to participate in the meeting using a means of communication that allows them to hear each other simultaneously during the meeting.

Advisory and Sub-Advisory Fees. For its advisory services, SIMC receives a fee that is calculated daily and paid monthly, at the annual rates set forth in the tables below (shown as a percentage of the average daily net assets of each Fund).

For the Government Fund, Government II Fund and Treasury II Fund:

Fund Name

 

Contractual Advisory Fee

 

Government Fund

   

0.07

%

 

Government II Fund*

   

0.07

%

 

Treasury II Fund*

   

0.07

%

 

*  SIMC has contractually agreed to waive its management fee as necessary to keep the management fee paid by each of the Government II Fund and Treasury II Fund during its fiscal year from exceeding 0.20%. This fee waiver agreement shall remain in effect until May 31, 2026 and, unless earlier terminated, shall be automatically renewed for successive one-year periods thereafter. The agreement may be amended or terminated only with the consent of the Board.

For the Ultra Short Duration Bond Fund:

   

Contractual Advisory Fee

 

On the first $500 million in Assets

   

0.10

%

 

On the next $500 million in Assets

   

0.075

%

 

On Assets over $1 billion

   

0.05

%

 

For the combined average daily net assets of the Short-Duration Government Fund and GNMA Fund:

   

Contractual Advisory Fee

 

On the first $500 million in Assets

   

0.10

%

 

On the next $500 million in Assets

   

0.075

%

 

On Assets over $1 billion

   

0.05

%

 

SIMC pays each Sub-Adviser a fee out of its advisory fee. Sub-Advisory fees are based on a percentage of the average daily net assets managed by the applicable Sub-Adviser. For the fiscal year ended January 31, 2025 the following percentage amount of sub-advisory fees were paid to the Sub-Advisers:

Fund Name

  Aggregate Sub-Advisory
Fees Paid
 

Government Fund

   

0.01

%

 

Government II Fund

   

0.01

%

 

Treasury II Fund

   

0.01

%

 
Ultra Short Duration Bond Fund    

0.09

%

 
Short-Duration Government Fund    

0.09

%

 
GNMA Fund    

0.09

%

 

For the fiscal years ended January 31, 2023, 2024 and 2025, the following tables show: (i) the contractual advisory fees that SIMC is entitled to receive from each Fund; (ii) the dollar amount of SIMC's contractual and


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voluntary fee waivers; (iii) the dollar amount of fees paid to the Sub-Advisers by SIMC; and (iv) the dollar amount of the fees retained by SIMC.

Sub-Advisory fees are based on a percentage of the average daily net assets managed by the applicable Sub-Adviser.

For the fiscal year ended January 31, 2025:

Fund Name

  Contractual
Advisory Fees (000)
  Advisory Fees
Waived (000)
  Sub-Advisory Fees
Paid (000)
  Advisory Fees
Retained
by SIMC (000)
 

Government Fund

 

$

5,612

   

$

0

   

$

405

   

$

5,207

   

Government II Fund

 

$

1,005

   

$

360

   

$

73

   

$

572

   

Treasury II Fund

 

$

388

   

$

138

   

$

29

   

$

221

   
Ultra Short Duration Bond
Fund
 

$

210

   

$

0

   

$

186

   

$

24

   
Short-Duration Government
Fund
 

$

604

   

$

0

   

$

569

   

$

35

   

GNMA Fund

 

$

18

   

$

0

   

$

17

   

$

1

   

For the fiscal year ended January 31, 2024:

Fund Name

  Contractual
Advisory Fees (000)
  Advisory Fees
Waived (000)
  Sub-Advisory Fees
Paid (000)
  Advisory Fees
Retained
by SIMC (000)
 

Government Fund

 

$

6,123

   

$

0

   

$

441

   

$

5,682

   

Government II Fund

 

$

1,393

   

$

497

   

$

102

   

$

794

   

Treasury II Fund

 

$

339

   

$

121

   

$

26

   

$

192

   
Ultra Short Duration Bond
Fund
 

$

255

   

$

0

   

$

255

   

$

0

   
Short-Duration Government
Fund
 

$

585

   

$

0

   

$

585

   

$

0

   

GNMA Fund

 

$

44

   

$

0

   

$

44

   

$

0

   

For the fiscal year ended January 31, 2023:

Fund Name

  Contractual
Advisory Fees (000)
  Advisory Fees
Waived (000)
  Sub-Advisory Fees
Paid (000)
  Advisory Fees
Retained
by SIMC (000)
 

Government Fund

 

$

7,076

   

$

0

   

$

509

   

$

6,567

   

Government II Fund

 

$

1,479

   

$

529

   

$

108

   

$

842

   

Treasury II Fund

 

$

354

   

$

126

   

$

27

   

$

201

   
Ultra Short Duration Bond
Fund
 

$

321

   

$

0

   

$

321

   

$

0

   
Short-Duration Government
Fund
 

$

631

   

$

0

   

$

631

   

$

0

   

GNMA Fund

 

$

53

   

$

0

   

$

53

   

$

0

   

The Sub-Advisers

BLACKROCK ADVISORS, LLC—BlackRock Advisors, LLC ("BAL") serves as the Sub-Adviser to the Government, Government II and Treasury II Funds. BAL is an investment adviser registered with the SEC. BAL is a wholly-owned indirect subsidiary of BlackRock, Inc. ("BlackRock"), an independent and publicly-traded corporation incorporated in Delaware and headquartered in New York, New York. As of March 31, 2025, there was no person known by BlackRock to own beneficially 10% or more of any class of outstanding voting securities of BlackRock.

METLIFE INVESTMENT MANAGEMENT, LLC—MetLife Investment Management, LLC ("MIM") serves as a Sub-Adviser to a portion of the assets of the Ultra Short Duration Bond Fund. MIM, a Delaware limited liability


S-39


company, was founded and registered with the SEC in 2006. MIM is a subsidiary of MetLife, Inc. ("MetLife"). There are no 25% or greater shareholders of MetLife.

WELLINGTON MANAGEMENT COMPANY LLP—Wellington Management Company LLP ("Wellington Management"), serves as a Sub-Adviser to the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Wellington Management, a Delaware limited liability partnership with principal offices at 280 Congress Street, Boston, Massachusetts 02210 is a professional investment counseling firm that provides investment services to investment companies, employee benefit plans, endowments, foundations and other institutions. Wellington Management and its predecessor organizations have provided investment advisory services for over 90 years. Wellington Management is owned by the partners of Wellington Management Group LLP, a Massachusetts limited liability partnership.

Portfolio Management.

SIMC

Compensation. SIMC compensates each portfolio manager for his or her management of the Funds. Each portfolio manager's compensation consists of a fixed annual salary, plus a discretionary annual bonus determined generally as follows.

Portfolio manager compensation is a combination of both Fund performance and SEI Investments Company ("SEI") performance. A majority of each portfolio manager's compensation is determined by the performance of the Funds for which the portfolio manager is responsible for over both a short-term and long-term time horizon. A final factor is a discretionary component, which is based upon a qualitative review of the portfolio managers and their team.

With respect to the bonus, twenty percent of each portfolio manager's compensation is tied to the corporate performance of SEI (SIMC's ultimate parent company), as measured by the earnings per share earned for a particular year. This percentage is set at the discretion of SEI and not SIMC.

The remaining percentage is based upon each Fund's performance (pre-tax) versus its respective benchmark over a one and three year period.

Ownership of Fund Shares. As of December 31, 2025, the portfolio managers beneficially owned shares of the Funds they manage, as follows:

Portfolio Manager

  Dollar Range of
Fund Shares
 

Richard A. Bamford

 

$

0

   

Anthony Karaminas, CFA

 

$

0

   

Philip Terrenzio, CFA

 

$

0

   

Other Accounts. As of December 31, 2025, in addition to the Funds, the portfolio managers were responsible for the day-to-day management of certain other accounts, as follows:

    Registered Investment
Companies
  Other Pooled
Investment Vehicles
 

Other Accounts

 

Portfolio Manager

  Number
of Accounts
  Total Assets
(in millions)
  Number
of Accounts
  Total Assets
(in millions)
  Number
of Accounts
  Total Assets
(in millions)
 
Richard A. Bamford    

23

   

$

28,730.16

     

1

   

$

221.19

     

0

   

$

0

   
Anthony Karaminas, CFA    

33

   

$

38,086.81

     

1

   

$

6

     

0

   

$

0

   
Philip Terrenzio, CFA    

4

   

$

1,646.02

     

0

   

$

0

     

0

   

$

0

   

No account listed above is subject to a performance-based advisory fee.

Conflicts of Interest. A portfolio manager's management of registered investment companies, other pooled investment vehicles or other accounts may give rise to actual or potential conflicts of interest in connection with their day-to-day management of the Funds' investments. The other accounts might have similar investment objectives as the Funds or hold, purchase or sell securities that are eligible to be held, purchased or sold by the Funds.


S-40


While a portfolio manager's management of the other accounts may give rise to the following potential conflicts of interest, SIMC does not believe that the conflicts, if any, are material or, to the extent any such conflicts are material, SIMC believes that it has designed policies and procedures that reasonably manage such conflicts in an appropriate way.

Knowledge of the Timing and Size of Fund Trades. A potential conflict of interest may arise as a result of a portfolio manager's day-to-day oversight of the Funds. Because of his/her position with the Funds, a portfolio manager knows the size, timing and possible market impact of Fund trades. It is theoretically possible that a portfolio manager could use this information to the advantage of the other accounts and to the possible detriment of the Funds. However, SIMC has adopted policies and procedures reasonably designed to allocate investment opportunities on a fair and equitable basis over time.

Investment Opportunities. A potential conflict of interest may arise as a result of a portfolio manager's oversight of the Funds and the other accounts, which, in theory, may allow a portfolio manager to allocate investment opportunities in a way that favors the other accounts over the Funds. This conflict of interest may be exacerbated to the extent that SIMC or a portfolio manager receive, or expect to receive, greater compensation from their management of the other accounts than the Funds. Notwithstanding this theoretical conflict of interest, it is SIMC's policy to manage each account based on its investment objectives and related restrictions and, as discussed above, SIMC has adopted policies and procedures reasonably designed to allocate investment opportunities on a fair and equitable basis over time and in a manner consistent with each account's investment objectives and related restrictions. For example, while a portfolio manager may buy for other accounts securities that differ in identity or quantity from securities bought for the Funds, such an approach might not be suitable for the Funds given their investment objectives and related restrictions.

MIM

Compensation. SIMC pays MIM a fee based on the assets under management of the Ultra Short Duration Bond Fund as set forth in an investment sub-advisory agreement between MIM and SIMC. MIM pays its investment professionals out of its total revenues and other resources, including the sub-advisory fees earned with respect to the Ultra Short Duration Bond Fund. The following information relates to the fiscal year ended January 31, 2025.

MIM is a wholly owned subsidiary of MetLife. The program is a combination of short and long term elements to compensate investment professionals, and non-investment professionals, based on the overall financial success of the firm. The incentive program is primarily comprised of three elements:

(i) Base salary: Base salaries are generally reviewed annually and are based on market competitiveness.

(ii) Short Term Awards: Individual awards in the form of an annual cash bonus are discretionary and non-formulaic based on firm as well as individual performance. Bonus compensation for senior investment professionals comprises a majority of their total compensation. This portion of compensation is determined subjectively based on qualitative and quantitative factors. Compensation is impacted by the performance of investments under management (i.e., delivering investment performance to clients consistent with portfolio objectives, guidelines and risk parameters) as well as an individual's qualitative contributions to the organization.

(iii) Long term Awards: Senior level employees are eligible to receive long term equity incentives. These create the motivation for strong individual and business performance over time and the opportunity for long-term alignment with shareholder return and employee retention.

An investment professional's short and long term awards and the compensation is not tied to any pre-determined or specified level of investment performance.

Ownership of Fund Shares.  As of January 31, 2025, MIM's portfolio managers did not beneficially own any shares of the Ultra Short Duration Bond Fund.


S-41


Other Accounts. As of January 31, 2025, MIM's portfolio managers were responsible for the day-to-day management of certain other accounts, as follows:

    Registered Investment
Companies
  Other Pooled
Investment Vehicles
 

Other Accounts

 

Portfolio Manager

  Number
of Accounts
  Total Assets
(in millions)
  Number
of Accounts
  Total Assets
(in millions)
  Number
of Accounts
  Total Assets
(in millions)
 

Scott Pavlak, CFA

   

2

   

$

1,653

     

7

   

$

790

     

43

   

$

9,476

   

Juan Peruyero

   

2

   

$

1,653

     

7

   

$

790

     

43

   

$

9,476

   

None of these accounts are subject to a performance-based advisory fee.

​  MIM utilizes a team-based approach to portfolio management, and each of the portfolio managers listed in the table is jointly responsible for the management of a portion of the accounts listed in each category.

Conflicts of Interest. Real, potential or apparent conflicts of interest may arise when a portfolio manager has day-to-day portfolio management responsibilities with respect to more than one fund or account. MIM is wholly owned by MetLife and is part of MetLife Investment Management, MetLife's institutional investment management business, and is affiliated with many types of U.S. and non-U.S. financial service providers, including other investment advisers, broker-dealers and insurance companies.

MetLife affiliates also invest their own capital in a broad range of investments. These investments may give rise to numerous situations where interests may conflict, including issues arising out of the investments of MetLife affiliates in entities or assets in which the Ultra Short Duration Bond Fund may invest or MIM may be prohibited from pursuing certain investment opportunities for the Ultra Short Duration Bond Fund due to regulatory or legal restrictions or constraints that may not have been applicable had MetLife affiliates not also invested in the same entity.

MIM has adopted procedures that it believes are reasonably designed to detect and prevent violations of the federal securities laws and to mitigate the potential for conflicts of interest to affect portfolio management decisions; however, there can be no assurance that all conflicts will be identified or that all procedures will be effective in mitigating the potential for such risks.

MIM and/or its affiliates manage certain accounts subject to performance-based fees or may have proprietary investments in certain accounts. The side-by-side management of the Ultra Short Duration Bond Fund and these other accounts may raise potential conflicts of interest with both the aggregation and allocation of securities transactions and allocation of investment opportunities because of market factors or investment restrictions. The performance of the Ultra Short Duration Bond Fund's investments could be adversely affected by the manner in which MIM and/or its affiliates enter particular orders for all such accounts. Allocations of aggregated trades, particularly trade orders that were only partially completed due to limited supply and allocation of investment opportunities generally, could raise a potential conflict of interest, as MIM and/or its affiliates may have an incentive to allocate securities that are expected to increase in value to favored accounts. A potential conflict of interest also may be perceived to arise if transactions in one account closely follow related transactions in a different account, such as when a purchase increases the value of securities previously purchased by another account, or when a sale in one account lowers the sale price received in a sale by a second account. The less liquid the market for the security or the greater the percentage that the proposed aggregate purchases or sales represent of average daily trading volume, the greater the potential for accounts that make subsequent purchases or sales to receive a less favorable price.

MIM and its affiliates have adopted a policy to allocate investment opportunities in a fair and equitable manner among client accounts. Orders for the same security on the same day are generally aggregated consistent with MIM's duty of best execution; however, purchases of fixed income securities cannot always be allocated pro rata across all client accounts with similar investment strategies and objectives. MIM will attempt to mitigate any potential unfairness using an objective methodology that in the good faith judgment of MIM permits a fair and equitable allocation over time.


S-42


MIM will manage the Ultra Short Duration Bond Fund and other client accounts in accordance with their respective investment objectives and guidelines. As a result, MIM and/or its affiliates may give advice, and take action with respect to any current or future other client accounts that may be opposed to or conflict with the advice MIM may give to the Ultra Short Duration Bond Fund, or may involve a different timing or nature of action than with respect to the Ultra Short Duration Bond Fund. Where a portfolio manager is responsible for accounts with differing investment objectives and policies, it is possible that the portfolio manager will conclude that it is in the best interest of one account to sell a portfolio security while another account continues to hold or increases the holding in such security. The results of the investment activities of the Ultra Short Duration Bond Fund may differ significantly from the results achieved by MIM and/or its affiliates for other client accounts.

Wellington Management

Compensation. Wellington Management receives a fee based on the assets under management of each of the Ultra Short Duration Bond, Short-Duration Government, and GNMA Funds as set forth in the Investment Sub-Advisory Agreement between Wellington Management and SIMC. Wellington Management pays its investment professionals out of its total revenues, including the advisory fees earned with respect to the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. The following information relates to the fiscal year ended January 31, 2025.

Wellington Management's compensation structure is designed to attract and retain high-caliber investment professionals necessary to deliver high quality investment management services to its clients. Wellington Management's compensation of each Fund's manager listed in the applicable Prospectus who is primarily responsible for the day-to-day management of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds (the "Portfolio Managers") includes a base salary and incentive components. The base salary for each Portfolio Manager who is a partner (a "Partner") of Wellington Management Group LLP, the ultimate holding company of Wellington Management, is generally a fixed amount that is determined by the managing partners of Wellington Management Group LLP. Each Portfolio Manager is eligible to receive an incentive payment based on the revenues earned by Wellington Management from the Fund managed by the Portfolio Manager and generally each other account managed by such Portfolio Manager. Each Portfolio Manager's incentive payment relating to the relevant fund is linked to the gross pre-tax performance of the portion of the fund managed by the Portfolio Manager compared to the Bloomberg GNMA index for the GNMA Fund and compared to the ICE BofA 1-3 Year US Treasury index for the Short-Duration Government Fund over one, three, and five year periods, with an emphasis on five year results. Wellington Management applies similar incentive compensation structures (although the benchmarks or peer groups, time periods and rates may differ) to other accounts managed by the Portfolio Managers, including accounts with performance fees. The incentive paid to the Portfolio Manager for the Ultra Short Duration Bond Fund, which has no performance-related component, is based on the revenues earned by Wellington Management.

Portfolio-based incentives across all accounts managed by an investment professional can, and typically do, represent a significant portion of an investment professional's overall compensation. Incentive compensation varies significantly by individual and can vary significantly from year to year. The Portfolio Managers may also be eligible for bonus payments based on their overall contribution to Wellington Management's business operations. Senior management at Wellington Management may reward individuals as it deems appropriate based on other factors. Each Partner is eligible to participate in a Partner-funded tax qualified retirement plan, the contributions to which are made pursuant to an actuarial formula. Brian Conroy and Marc Piccuirro are Partners.

Ownership of Fund Shares. As of January 31, 2025, the Portfolio Managers did not beneficially own any Fund shares of the Ultra Short Duration Bond, Short-Duration Government or GNMA Funds.


S-43


Other Accounts. As of January 31, 2025, in addition to the Ultra Short Duration Bond, Short-Duration Government, and GNMA Funds, the Portfolio Managers were responsible for the day-to-day management of certain other accounts, as follows:

    Registered Investment
Companies
  Other Pooled
Investment Vehicles
 

Other Accounts

 

Portfolio Manager

  Number
of Accounts
 

Total Assets

  Number
of Accounts
 

Total Assets

  Number
of Accounts
 

Total Assets

 

Brian Conroy, CFA

   

11

   

$

16,773,939,796

     

21

   

$

4,964,450,765

     

45

   

$

20,911,858,207

   
     

0

   

$

0

     

3

*

 

$

134,825,859

     

8

*

 

$

6,710,837,676

   

Marc Piccuirro

   

4

   

$

2,685,309,432

     

2

   

$

112,422,330

     

125

   

$

42,749,094,604

   
     

0

   

$

0

     

1

*

 

$

86,270,534

     

1

*

 

$

1,009,372

   

*  These accounts, which are a subset of the accounts in the preceding row, are subject to a performance-based advisory fee.

Conflicts of Interest. Individual investment professionals at Wellington Management manage multiple accounts for multiple clients. These accounts may include mutual funds, separate accounts (assets managed on behalf of institutions, such as pension funds, insurance companies, foundations or separately managed account programs sponsored by financial intermediaries), bank common trust accounts and hedge funds.

The Portfolio Managers generally manage accounts in several different investment styles. These accounts may have investment objectives, strategies, time horizons, tax considerations and risk profiles that differ from those of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. The Portfolio Managers make investment decisions for each account, including the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds, based on the investment objectives, policies, practices, benchmarks, cash flows, tax and other relevant investment considerations applicable to that account. Consequently, the Portfolio Managers may purchase or sell securities, including initial public offerings, for one account and not another account, and the performance of securities purchased for one account may vary from the performance of securities purchased for other accounts. Alternatively, these accounts may be managed in a similar fashion to the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds and thus the accounts may have similar, and in some cases nearly identical, objectives, strategies and/or holdings to that of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds.

A Portfolio Manager or other investment professionals at Wellington Management may place transactions on behalf of other accounts that are directly or indirectly contrary to investment decisions made on behalf of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds or make investment decisions that are similar to those made for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds, both of which have the potential to adversely impact the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds depending on market conditions. For example, an investment professional may purchase a security in one account while appropriately selling that same security in another account. Similarly, a Portfolio Manager may purchase the same security for the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds and for one or more other accounts at or about the same time. In those instances, the other accounts will have access to their respective holdings prior to the public disclosure of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds' holdings. In addition, some of these accounts have fee structures, including performance fees, which are or have the potential to be higher, in some cases significantly higher, than the fees Wellington Management receives for managing the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. Mr. Conroy and Mr. Piccuirro also manage accounts which pay performance allocations to Wellington Management or its affiliates. Because incentive payments paid by Wellington Management to the Portfolio Managers are tied to revenues earned by Wellington Management and, where noted, to the performance achieved by the manager in each account, the incentives associated with any given account may be significantly higher or lower than those associated with other accounts managed by a given Portfolio Manager. Finally, the Portfolio Managers may hold shares or investments in the other pooled investment vehicles and/or other accounts identified above.


S-44


Wellington Management's goal is to meet its fiduciary obligation to treat all clients fairly and provide high quality investment services to all of its clients. Wellington Management has adopted and implemented policies and procedures, including brokerage and trade allocation policies and procedures that it believes address the conflicts associated with managing multiple accounts for multiple clients. In addition, Wellington Management monitors a variety of areas, including compliance with primary account guidelines, the allocation of initial public offerings and compliance with the firm's Code of Ethics and places additional investment restrictions on investment professionals who manage hedge funds and certain other accounts. Furthermore, senior investment and business personnel at Wellington Management periodically review the performance of Wellington Management's investment professionals. Although Wellington Management does not track the time an investment professional spends on a single account, Wellington Management does periodically assess whether an investment professional has adequate time and resources to effectively manage the investment professional's various client mandates.

DISTRIBUTION AND SHAREHOLDER SERVICING

General. SEI Investments Distribution Co. (the "Distributor") serves as each Fund's distributor. The Distributor, a wholly owned subsidiary of SEI, has its principal business address at One Freedom Valley Drive, Oaks, Pennsylvania 19456.

Distribution Agreement and Shareholder Service Plan. The Distributor serves as each Fund's distributor pursuant to a distribution agreement (the "Distribution Agreement").

Pursuant to a Shareholder Service Plan (the "Shareholder Service Plan"), the Class F, Wealth Class and Admin Class shares are authorized to pay service providers a fee in connection with the ongoing servicing of shareholder accounts owning such shares at the annual rate of up to 0.25% of the value of the average daily net assets attributable to each of the Class F, Wealth Class and Admin Class shares of the Fund, which is calculated daily and payable monthly.

The service fee payable under the Shareholder Service Plan are intended to compensate service providers for the provision of shareholder services and may be used to provide compensation to financial intermediaries for ongoing service and/or maintenance of shareholder accounts with respect to Fund shares of the applicable Funds. Shareholder services under the Shareholder Service Plan may include: (i) maintaining client accounts; (ii) arranging for bank wires; (iii) responding to client inquiries concerning services provided on investments; (iv) assisting clients in changing dividend options, (v) account designations and addresses; (vi) sub-accounting; (vii) providing information on share positions to clients; (viii) forwarding shareholder communications to clients; (ix) processing purchase, exchange and redemption orders; (x) processing dividend payments; and (xi) providing such other similar services as a Fund may reasonably request to the extent the service provider is permitted to do so under applicable statutes, rules and regulations.

Distribution Expenses Incurred by Adviser. The Funds may be sold through independent registered investment advisers, financial planners, bank trust departments and other financial advisors ("Financial Advisors") who provide their clients with advice and services in connection with their investments in the SEI Funds. SEI Funds are typically combined into complete investment portfolios and strategies using asset allocation techniques to serve investor needs. In connection with its distribution activities, SIMC and its affiliates may provide Financial Advisors, without charge, asset allocation models and strategies, custody services, risk assessment tools and other investment information and services to assist them in providing advice to investors.

SIMC may hold conferences, seminars and other educational and informational activities for Financial Advisors for the purpose of educating Financial Advisors about the Funds and other investment products offered by SIMC or its affiliates. SIMC may pay for lodging, meals and other similar expenses incurred by Financial Advisors in connection with such activities. SIMC also may pay expenses associated with joint marketing activities with Financial Advisors, including, without limitation, seminars, conferences, client appreciation dinners, direct market mailings and other marketing activities designed to further the promotion of the Funds. In certain cases, SIMC may make payments to Financial Advisors or their employer in connection with their solicitation or referral of investment business, subject to any regulatory requirements for disclosure to and


S-45


consent from the investor. All such marketing expenses and solicitation payments are paid by SIMC or its affiliates out of its past profits or other available resources and are not charged to the Funds.

Many Financial Advisors may be affiliated with broker-dealers. SIMC and its affiliates may pay compensation to broker-dealers or other financial institutions for services such as, without limitation, providing the Funds with "shelf space" or a higher profile for the firm's associated Financial Advisors and their customers, placing the Funds on the firm's preferred or recommended fund list, granting the Distributor access to the firm's associated Financial Advisors, providing assistance in training and educating the firms' personnel, allowing sponsorship of seminars or informational meetings, and furnishing marketing support and other specified services. These payments may be based on average net assets of SEI Funds attributable to that broker-dealer, gross or net sales of SEI Funds attributable to that broker-dealer, a negotiated lump sum payment or other appropriate compensation for services rendered.

Payments may also be made by SIMC or its affiliates to financial institutions to compensate or reimburse them for administrative or other client services provided such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, account set-up, recordkeeping and other shareholder services. These fees may be used by the financial institutions to offset or reduce fees that would otherwise be paid directly to them by certain account holders, such as retirement plans. The foregoing payments may be in addition to any shareholder servicing fees paid to a financial institution in accordance with the Funds' Shareholder Servicing Plan or Administrative Servicing Plan.

The payments discussed above may be significant to the financial institutions receiving them and may create an incentive for the financial institutions or their representatives to recommend or offer shares of the SEI Funds to its customers rather than other funds or investment products. These payments are made by SIMC and its affiliates out of their past profits or other available resources.

Although the Funds may use broker-dealers that sell Fund shares to effect transactions for the Funds' portfolio, the Funds, SIMC and the Funds' Sub-Advisers will not consider the sale of Fund shares as a factor when choosing broker-dealers to effect those transactions and will not direct brokerage transactions to broker-dealers as compensation for the sales of Fund shares.

SECURITIES LENDING ACTIVITY

During the most recent fiscal year, the Funds did not engage in securities lending.

TRUSTEES AND OFFICERS OF THE TRUST

Board Responsibilities. The management and affairs of the Trust and its series, including the Funds described in this SAI, are overseen by the Trustees. The Board has approved contracts, as described above, under which certain companies provide essential management services to the Trust.

Like most mutual funds, the day-to-day business of the Trust, including the management of risk, is performed by third party service providers, such as SIMC, the Distributor and the Administrator. The Trustees are responsible for overseeing the Trust's service providers and, thus, have oversight responsibility with respect to risk management performed by those service providers. Risk management seeks to identify and address risks, i.e., events or circumstances that could have material adverse effects on the business, operations, shareholder services, investment performance or reputation of the Funds. The Funds and their service providers employ a variety of processes, procedures and controls to identify risks, to lessen the probability of their occurrence and/or to mitigate the effects of such risks if they do occur. Each service provider is responsible for one or more discrete aspects of the Trust's business (e.g., SIMC is responsible for the investment performance of the Funds and, along with the Board, is responsible for the oversight of the Funds' Sub-Advisers, which, in turn, are responsible for the day-to-day management of the Funds' portfolio investments) and, consequently, for managing the risks associated with that business. The Board has emphasized to the Funds' service providers the importance of maintaining vigorous risk management.


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The Trustees' role in risk oversight begins before the inception of a Fund, at which time SIMC presents the Board with information concerning the investment objectives, strategies and risks of the Fund as well as proposed investment limitations for the Fund. Additionally, each Sub-Adviser and SIMC provides the Board with an overview of, among other things, its investment philosophy, brokerage practices and compliance infrastructure. Thereafter, the Board continues its oversight function as various personnel, including the Trust's Chief Compliance Officer, as well as personnel of SIMC and other service providers such as the Fund's independent accountants, make periodic reports to the Audit Committee or to the Board with respect to various aspects of risk management. The Board and the Audit Committee oversee efforts by management and service providers to manage risks to which the Funds may be exposed.

The Board is responsible for overseeing the nature, extent and quality of the services provided to the Funds by the Adviser and Sub-Advisers and receives information about those services at its regular meetings. In addition, in connection with its consideration of whether to annually renew the Advisory Agreement between the Trust, on behalf of the Funds, and SIMC and the various sub-advisory agreements between SIMC and the Sub-Advisers with respect to the Funds, the Board annually meets with SIMC and, at least every three years, meets with the Sub-Advisers to review such services. Among other things, the Board regularly considers the Sub-Advisers' adherence to the Funds' investment restrictions and compliance with various Fund policies and procedures and with applicable securities regulations.

The Trust's Chief Compliance Officer reports regularly to the Board to review and discuss compliance issues and Fund, Adviser and Sub-Adviser risk assessments. At least annually, the Trust's Chief Compliance Officer provides the Board with a report reviewing the adequacy and effectiveness of the Trust's policies and procedures and those of its service providers, including the Adviser and Sub-Advisers. The report addresses the operation of the policies and procedures of the Trust and each service provider since the date of the last report; any material changes to the policies and procedures since the date of the last report; any recommendations for material changes to the policies and procedures; and any material compliance matters since the date of the last report.

The Board receives reports from the Valuation Designee and the Funds' service providers regarding operational risks and risks related to the valuation and liquidity of portfolio securities. The Trust's Valuation Designee provides quarterly reports to the Board concerning investments for which market prices are not readily available or may be unreliable. Annually, the independent registered public accounting firm reviews with the Audit Committee its audit of the Funds' financial statements, focusing on major areas of financial statement risk encountered by the Funds and noting any significant deficiencies or material weaknesses that were identified in the Funds' internal controls. Additionally, in connection with its oversight function, the Board oversees Fund management's implementation of disclosure controls and procedures, which are designed to ensure that information required to be disclosed by the Trust in its periodic reports with the SEC are recorded, processed, summarized and reported within the required time periods. The Board also oversees the Trust's internal controls over financial reporting, which comprise policies and procedures designed to provide reasonable assurance regarding the reliability of the Trust's financial reporting and the preparation of the Trust's financial statements.

From their review of these reports and discussions with SIMC, the Sub-Advisers, the Chief Compliance Officer, the independent registered public accounting firm and other service providers, the Board and the Audit Committee learn about the material risks of the Funds, thereby facilitating a dialogue about how management and service providers identify and mitigate those risks.

The Board recognizes that not all risks that may affect the Funds can be identified and/or quantified, that it may not be practical or cost-effective to eliminate or mitigate certain risks, that it may be necessary to bear certain risks (such as investment-related risks) to achieve the Funds' goals, and that the processes, procedures and controls employed to address certain risks may be limited in their effectiveness. Reports received by the Trustees as to risk management matters are typically summaries of the relevant information. Most of the Funds' investment management and business affairs are carried out by or through SIMC, the Sub-Advisers and the Funds' other service providers, each of which has an independent interest in risk management and each of which has policies and methods by which one or more risk management functions are carried out. These risk management policies and methods may differ in the setting of priorities, the resources available or the


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effectiveness of relevant controls. As a result of the foregoing and other factors, the Board's ability to monitor and manage risk, as a practical matter, is subject to limitations.

Members of the Board. There are ten members of the Board, eight of whom are not interested persons of the Trust, as that term is defined in the 1940 Act ("independent Trustees"). Robert A. Nesher, an interested person of the Trust, serves as Chairman of the Board. James M. Williams, an independent Trustee, serves as the lead independent Trustee. The Trust has determined its leadership structure is appropriate given the specific characteristics and circumstances of the Trust. The Trust made this determination in consideration of, among other things, the fact that the chairperson of each Committee of the Board is an independent Trustee, the amount of assets under management in the Trust and the number of Funds (and classes of shares) overseen by the Board. The Board also believes that its leadership structure facilitates the orderly and efficient flow of information to the independent Trustees from Fund management.

The Board has two standing committees: the Audit Committee and Governance Committee. The Audit Committee and Governance Committee are chaired by an independent Trustee and composed of all of the independent Trustees. In addition, the Board has a lead independent Trustee.

In his role as lead independent Trustee, Mr. Williams, among other things: (i) presides over Board meetings in the absence of the Chairman of the Board; (ii) presides over executive sessions of the independent Trustees; (iii) along with the Chairman of the Board, oversees the development of agendas for Board meetings; (iv) facilitates dealings and communications between the independent Trustees and management, and among the independent Trustees; and (v) has such other responsibilities as the Board or independent Trustees determine from time to time.

Set forth below are the names, years of birth, position with the Trust, the year in which the Trustee was elected, and the principal occupations and other directorships held during at least the last five years of each of the persons currently serving as a Trustee of the Trust. There is no stated term of office for the Trustees. However, each Trustee who is not an interested person of the Trust must retire from the Board by the end of the calendar year in which the Trustee attains the age of 75 years. Current members of the Board may, upon the unanimous vote of the Governance Committee and a majority vote of the full Board, continue to serve on the Board for a maximum of five successive one calendar year terms after attaining the age of 75 years. Unless otherwise noted, the business address of each Trustee is SEI Investments Company, One Freedom Valley Drive, Oaks, Pennsylvania 19456.

Interested Trustees.

ROBERT A. NESHER (Born: 1946)—Chairman of the Board of Trustees* (since 1989)—President and Chief Executive Officer of the Trust since December 2005. SEI employee since 1974; currently performs various services on behalf of SEI Investments for which Mr. Nesher is compensated. President and Director of SEI Structured Credit Fund, LP. Director of SEI Global Master Fund plc, SEI Global Assets Fund plc, SEI Global Investments Fund plc, SEI Investments—Global Funds Services, Limited, SEI Investments Global, Limited, SEI Investments (Europe) Ltd., SEI Investments—Unit Trust Management (UK) Limited, SEI Multi-Strategy Funds PLC and SEI Global Nominee Ltd. Trustee of The Advisors' Inner Circle Fund, The Advisors' Inner Circle Fund II, Bishop Street Funds, Frost Family of Funds and Catholic Responsible Investments Funds. President, Chief Executive Officer and Trustee of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Asset Allocation Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds and SEI Alternative Income Fund. President, Chief Executive Officer and Trustee of SEI Insurance Products Trust from 2013 to 2020. Trustee of The KP Funds from 2013 to 2020. Vice Chairman of Schroder Series Trust and Schroder Global Series Trust from 2017 to 2018. Vice Chairman of Gallery Trust from 2015 to 2018. Vice Chairman of Winton Diversified Opportunities Fund from 2014 to 2018. Vice Chairman of The Advisors' Inner Circle Fund III from 2014 to 2018. Vice Chairman of Winton Series Trust from 2014 to 2017. Vice Chairman of O'Connor EQUUS (closed-end investment company) from 2014 to 2016.

*  Messrs. Nesher and McGonigle are Trustees deemed to be "interested" persons (as that term is defined in the 1940 Act) of the Funds by virtue of their relationships with SEI.


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President, Chief Executive Officer and Trustee of SEI Liquid Asset Trust from 1989 to 2016. President, Chief Executive Officer and Director of SEI Alpha Strategy Portfolios, LP, from 2007 to 2013.

DENNIS J. MCGONIGLE (Born: 1960)—Trustee* (since 2024)—Adviser to SEI Investments Company, Inc. since April 2024. Trustee of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds. Chief Financial Officer of SEI Investments Company, Inc. from 2002 to April 2024. Executive Vice President of SEI Investments Company, Inc. from 1996 to 2024. Business Manager and Product Manager of SEI Investments Company, Inc. from 1985 to 1998. Senior Auditor of Arthur Andersen and Company from 1982 to 1985.

Independent Trustees.

NINA LESAVOY (Born: 1957)—Trustee (since 2003)—Founder and Managing Director, Avec Capital (strategic fundraising firm), since April 2008. Trustee/Director of SEI Structured Credit Fund, LP, SEI Asset Allocation Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds and SEI Alternative Income Fund. Trustee of SEI Insurance Products Trust from 2013 to 2020. Trustee of SEI Liquid Asset Trust from 2003 to 2016. Director of SEI Alpha Strategy Portfolios, LP from 2007 to 2013. Managing Director, Cue Capital (strategic fundraising firm) from March 2002 to March 2008.

JAMES M. WILLIAMS (Born: 1947)—Trustee (since 2004)—Retired since June 2024. Vice President and Chief Investment Officer, J. Paul Getty Trust, Non Profit Foundation for Visual Arts, from December 2002 to June 2024. Trustee/Director of Ariel Mutual Funds, SEI Structured Credit Fund, LP, SEI Asset Allocation Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds and SEI Alternative Income Fund. Trustee/Director of SEI Insurance Products Trust from 2013 to 2020. Trustee of SEI Liquid Asset Trust from 2004 to 2016. Director of SEI Alpha Strategy Portfolios, LP from 2007 to 2013. President of Harbor Capital Advisors and Harbor Mutual Funds from 2000 to 2002. Manager of Pension Asset Management for Ford Motor Company from 1997 to 1999.

SUSAN C. COTE (Born: 1954)—Trustee (since 2016)—Retired since July 2015. Trustee/Director of SEI Structured Credit Fund, LP, SEI Tax Exempt Trust, SEI Institutional International Trust, SEI Institutional Managed Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds and SEI Alternative Income Fund. Trustee of SEI Insurance Products Trust from 2015 to 2020. Treasurer and Chair of Finance of the Investment and Audit Committee of the New York Women's Foundation from 2012 to 2017. Member of the Ernst & Young LLP Retirement Investment Committee from 2009 to 2015. Global Asset Management Assurance Leader, Ernst & Young LLP from 2006 to 2015. Partner of Ernst & Young LLP from 1997 to 2015. Americas Director of Asset Management of Ernst & Young LLP from 2006 to 2013. Employee of Prudential from 1983 to 1997.

JAMES B. TAYLOR (Born: 1950)—Trustee (since 2018)—Retired since December 2017. Trustee of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Asset Allocation Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds. Trustee of SEI Insurance Products Trust from 2018 to 2020. Chief Investment Officer, Georgia Tech Foundation from 2008 to 2017. Director, Assistant Vice President, and Chief Investment Officer, Delta Air Lines from 1983 to 2007. Member of the Investment Committee of Institute of Electrical and Electronic Engineers from 1999 to 2004. President, Vice President and Treasurer for Southern Benefits Conference from 1998 to 2000.

CHRISTINE REYNOLDS (Born: 1958)—Trustee (since 2019)—Retired since December 2016. Trustee of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation

*  Messrs. Nesher and McGonigle are Trustees deemed to be "interested" persons (as that term is defined in the 1940 Act) of the Funds by virtue of their relationships with SEI.


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Trust, SEI Institutional Investments Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds. Trustee of SEI Insurance Products Trust from 2019 to 2020. Executive Vice President at Fidelity Investments from 2014 to 2016. President at Fidelity Pricing and Cash Management Services ("FPCMS") and Chief Financial Officer of Fidelity Funds from 2008 to 2014. Chief Operating Officer of FPCMS from 2007 to 2008. President, Treasurer at Fidelity Funds from 2004 to 2007. Anti-Money Laundering Officer at Fidelity Funds in 2004. Executive Vice President at Fidelity Funds from 2002 to 2004. Audit Partner at PricewaterhouseCoopers from 1992 to 2002.

THOMAS MELENDEZ (Born 1959)—Trustee (since 2021)—Retired since April 2019. Trustee of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, Adviser Managed Trust, SEI Exchange Traded Funds, SEI Catholic Values Trust and New Covenant Funds. Trustee of Boston Children's Hospital, The Partnership Inc. (non-profit organizations) and Brae Burn Country Club. Investment Officer and Institutional Equity Portfolio Manager at MFS Investment Management from 2002 to 2019. Director of Emerging Markets Group, General Manager of Operations in Argentina and Portfolio Manager for Latin America at Schroders Investment Management from 1994 to 2002.

ELI POWELL NIEPOKY (Born: 1966)—Trustee (since 2024)—Treasurer of The Robert W. Woodruff Foundation since May 2021. Trustee of SEI Asset Allocation Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds. Vice President and Chief Investment Officer of Berman Capital Advisors from March 2018 to May 2021. Independent Consultant from January 2017 to February 2018. Principal and Chief Investment Officer of Diversified Trust Company from January 2003 to April 2015. Information Analyst and Director of Delta Air Lines from January 1990 to December 2002.

KIMBERLY WALKER (Born 1958)—Trustee (since 2024)—General Partner at 1809 Capital since 2022. Trustee of SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds. Advisory Committee Member of NISA Investment Advisors since 2018. Chief Investment Officer of Washington University in St. Louis from 2006 to 2016. President of Qwest Asset Management Company from 1998 to 2006. Director of Equity Strategy for General Motors Corporation from 1994 to 1998.

There are currently 6 Funds in the Trust and 100 Funds in the Fund Complex.

Individual Trustee Qualifications. The Trust has concluded that each of the Trustees should serve on the Board because of their ability to review and understand information about the Funds provided to them by management, to identify and request other information they may deem relevant to the performance of their duties, to question management and other service providers regarding material factors bearing on the management and administration of the Funds, and to exercise their business judgment in a manner that serves the best interests of the Funds' shareholders. The Trust has concluded that each of the Trustees should serve as a Trustee based on their own experience, qualifications, attributes and skills as described below.

The Trust has concluded that Mr. Nesher should serve as Trustee because of the experience he has gained in his various roles with SEI Investments Company, which he joined in 1974, his knowledge of and experience in the financial services industry, and the experience he has gained serving as Trustee of the various SEI Trusts since 1982.

The Trust has concluded that Mr. McGonigle should serve as Trustee because of the experience he has gained in his various roles with SEI Investments Company, his knowledge of the financial services industry, and the experience he gained serving as a director on various company boards.

The Trust has concluded that Ms. Lesavoy should serve as Trustee because of the experience she gained as a Director of several private equity fundraising firms and marketing and selling a wide range of investment products to institutional investors, her experience in and knowledge of the financial services industry, and the experience she has gained serving as Trustee of the various SEI Trusts since 2003 and the various SEI Trusts' Governance Chair since 2014.


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The Trust has concluded that Mr. Williams should serve as Trustee because of the experience he gained as Chief Investment Officer of a non-profit foundation, the President of an investment management firm, the President of a registered investment company and the Manager of a public company's pension assets, his experience in and knowledge of the financial services industry, and the experience he has gained serving as Trustee of the various SEI Trusts since 2004.

The Trust has concluded that Ms. Cote should serve as Trustee because of her education, knowledge of financial services and investment management, and the experience she has gained as a partner at a major accounting firm, where she served as both the Global Asset Management Assurance Leader and the Americas Director of Asset Management, and other professional experience gained through her prior employment and directorships.

The Trust has concluded that Mr. Taylor should serve as Trustee because of his education, knowledge of financial services and investment management, and the experience he has gained as a Chief Investment Officer at an endowment of a large university, and other professional experience gained through his prior employment and leadership positions.

The Trust has concluded that Ms. Reynolds should serve as Trustee because of the experience she has gained in her various roles with Fidelity, which she joined in 2002, including Chief Financial Officer of Fidelity Funds, her experience as a partner of a major accounting firm, and her experience in and knowledge of the financial services industry.

The Trust has concluded that Mr. Melendez should serve as Trustee because of the experience he has gained as an executive and portfolio manager of an investment management firm, his experience in and knowledge of the financial services industry, and other professional experience gained through his prior employment and leadership positions.

The Trust has concluded that Ms. Niepoky should serve as Trustee because of her education, her knowledge of public and private markets gained through her institutional and private wealth management roles, and her other professional experience.

The Trust has concluded that Ms. Walker should serve as Trustee because of her extensive knowledge of institutional asset management, experience she gained serving as Chief Investment Officer of a large university, and other professional experience gained through her prior employment.

In its periodic assessment of the effectiveness of the Board, the Board considers the complementary individual skills and experience of the individual Trustees primarily in the broader context of the Board's overall composition so that the Board, as a body, possesses the appropriate (and appropriately diverse) skills and experience to oversee the business of the Funds. Moreover, references to the qualifications, attributes and skills of Trustees are pursuant to requirements of the SEC, do not constitute holding out of, or reflect any conclusion that, the Board or any Trustee has any special expertise or experience, and shall not be deemed to impose any greater responsibility or liability on any such person or on the Board by reason thereof.

Board Standing Committees. The Board has established the following standing committees:

•  Audit Committee. The Board has a standing Audit Committee that is composed of each of the Independent Trustees of the Trust. The Audit Committee operates under a written charter approved by the Board. The principal responsibilities of the Audit Committee include: (i) recommending which firm to engage as the Trust's independent auditors and whether to terminate this relationship; (ii) reviewing the independent auditors' compensation, the proposed scope and terms of its engagement, and the firm's independence; (iii) pre-approving audit and non-audit services provided by the Trust's independent auditors to the Trust and certain other affiliated entities; (iv) serving as a channel of communication between the independent auditors and the Trustees; (v) reviewing the results of each external audit, including any qualifications in the independent auditors' opinion, any related management letter, management's responses to recommendations made by the independent auditors in connection with the audit, reports submitted to the Audit Committee by the internal auditing department of the Administrator that are material to the Trust as a whole, if any, and management's responses to any such reports; (vi) reviewing the Trust's audited financial statements and considering


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any significant disputes between the Trust's management and the independent auditors that arose in connection with the preparation of those financial statements; (vii) considering, in consultation with the independent auditors and the Trust's senior internal accounting executive, if any, the independent auditors' report on the adequacy of the Trust's internal financial controls; (viii) reviewing, in consultation with the Trust's independent auditors, major changes regarding auditing and accounting principles and practices to be followed when preparing the Trust's financial statements; and (ix) other audit related matters. In addition, the Audit Committee is responsible for the oversight of the Trust's compliance program. Messrs. Williams, Taylor and Melendez and Mses. Lesavoy, Cote, Reynolds, Niepoky and Walker currently serve as members of the Audit Committee. The Audit Committee meets periodically, as necessary, and met four (4) times during the Trust's most recently completed fiscal year.

•  Governance Committee. The Board has a standing Governance Committee that is composed of each of the Independent Trustees of the Trust. The Governance Committee operates under a written charter approved by the Board. The principal responsibilities of the Governance Committee include: (i) considering and reviewing Board governance and compensation issues; (ii) conducting a self-assessment of the Board's operations; (iii) selecting and nominating all persons to serve as Independent Trustees and evaluating the qualifications of "interested" Trustee candidates; and (iv) reviewing shareholder recommendations for nominations to fill vacancies on the Board if such recommendations are submitted in writing and addressed to the Governance Committee at the applicable Trust's offices. Messrs. Williams, Taylor and Melendez and Mses. Lesavoy, Cote, Reynolds, Niepoky and Walker currently serve as members of the Governance Committee. The Governance Committee shall meet at the direction of its Chair as often as appropriate to accomplish its purpose. In any event, the Governance Committee shall meet at least once each year and shall conduct at least one meeting in person. The Governance Committee met four 4 times during the Trust's most recently completed fiscal year.

Fund Shares Owned by Board Members. The following table shows the dollar amount range of each Trustee's "beneficial ownership" of shares of each of the Funds as of the end of the most recently completed calendar year. Dollar amount ranges disclosed are established by the SEC.

"Beneficial ownership" is determined in accordance with Rule 16a-1(a)(2) under the Securities and Exchange Act of 1934, as amended (the "1934 Act"). The Trustees and officers of the Trust own less than 1% of the outstanding shares of the Trust.

Name

  Dollar Range of
Fund Shares
(Fund)*
  Aggregate Dollar
Range of Shares
(Fund Complex)*
 

Interested

 

Mr. Nesher

 

None

 

Over $100,000

 
Mr. McGonigle^  

Over $100,000

 

Over $100,000

 

Independent

 

Ms. Lesavoy

  $1-$10,000  

Over $100,000

 

Mr. Williams

 

None

  $50,001-$100,000  

Ms. Cote

 

None

 

None

 

Mr. Taylor

 

None

 

Over $100,000

 

Ms. Reynolds

 

None

 

Over $100,000

 

Mr. Melendez

 

None

 

None

 

Ms. Niepoky^

 

None

 

None

 

Ms. Walker^

 

None

 

None

 

*  Valuation date is December 31, 2024.

​  The Fund Complex currently consists of 100 portfolios of the following trusts: SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds.

^​  Mr. McGonigle and Mses. Niepoky and Walker became trustees for the Trust effective October 16, 2024.


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Board Compensation.  The Trust and the Fund Complex paid the following fees to the Trustees during its most recently completed fiscal year.

Name

  Aggregate
Compensation
  Pension or
Retirement
Benefits Accrued
as Part of
Fund Expenses
  Estimated
Annual
Benefits Upon
Retirement
  Total Compensation
from the Trust
and Fund
Complex*
 

Interested

 

Mr. Nesher

 

$

0

   

$

0

   

$

0

   

$

0

   

Mr. Doran††

 

$

0

   

$

0

   

$

0

   

$

0

   

Mr. McGonigle**

 

$

0

   

$

0

   

$

0

   

$

0

   

Independent

 

Ms. Lesavoy

 

$

39,099

   

$

0

   

$

0

   

$

355,000

   

Mr. Williams

 

$

40,201

   

$

0

   

$

0

   

$

365,000

   

Ms. Cote

 

$

39,099

   

$

0

   

$

0

   

$

355,000

   

Mr. Taylor

 

$

36,346

   

$

0

   

$

0

   

$

330,000

   

Ms. Reynolds

 

$

36,346

   

$

0

   

$

0

   

$

330,000

   

Mr. Melendez

 

$

36,346

   

$

0

   

$

0

   

$

330,000

   

Ms. Niepoky**

 

$

8,019

   

$

0

   

$

0

   

$

82,500

   

Ms. Walker**

 

$

8,019

   

$

0

   

$

0

   

$

82,500

   

*  The Fund Complex currently consists of 100 portfolios of the following trusts: SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional International Trust, SEI Institutional Investments Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust and SEI Exchange Traded Funds.

**  Mr. McGonigle and Mses. Niepoky and Walker became trustees for the Trust effective October 16, 2024.

††​  Mr. William M. Doran retired from the Board of Trustees effective May 31, 2025, after having dutifully served on the SEI Funds' Board since 1982. The Board is grateful to Mr. Doran for his devoted service and steadfast commitment to the Trust, the SEI Funds' shareholders, and the Board.

Trust Officers.  Set forth below are the names, dates of birth, position with the Trust, length of term of office, and the principal occupations for the last five years of each of the persons currently serving as officers of the Trust. Unless otherwise noted, the business address of each officer is SEI Investments Company, One Freedom Valley Drive, Oaks, Pennsylvania 19456. None of the officers, except for Stephen Panner, the Chief Compliance Officer of the Trust, receives compensation from the Trust for his or her services. The Trust's Chief Compliance Officer serves in the same capacity for the other SEI trusts included in the Fund Complex (as described above), and the Trust pays its pro rata share of the aggregate compensation payable to the Chief Compliance Officer for his services.

Certain officers of the Trust also serve as officers to one or more mutual funds for which SEI or its affiliates act as investment adviser, administrator or distributor.

The officers of the Trust have been elected by the Board. Each officer shall hold office until the election and qualification of his or her successor, or until earlier resignation or removal.

ROBERT A. NESHER (Born: 1946)—President and Chief Executive Officer (since 2005)—See biographical information above under the heading "Interested Trustees."

TIMOTHY D. BARTO (Born: 1968)—Vice President, Secretary and Chief Legal Officer (since 2002)—General Counsel and Secretary of SIMC since 2004. Vice President and Assistant Secretary of SEI since 2001. Vice President of SIMC since 1999. Vice President and Secretary of SEI Institutional Transfer Agent, Inc. from 2009 to 2024. Vice President of the Administrator from 1999 to 2024.

GLENN R. KURDZIEL (Born: 1974)—Controller and Chief Financial Officer (since 2023)—Controller and Chief Financial Officer of SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, Adviser Managed Trust, New Covenant


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Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds and SEI Alternative Income Fund since August 2023. Assistant Controller of SEI Daily Income Trust, SEI Tax Exempt Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, Adviser Managed Trust, New Covenant Funds and SEI Catholic Values Trust from 2017 to 2023. Assistant Controller of SEI Exchange Traded Funds from 2022 to 2023. Senior Manager of Funds Accounting of SEI Investments Global Funds Services from 2005 to 2023.

STEPHEN F. PANNER (Born: 1970)—Chief Compliance Officer (since 2022)—Chief Compliance Officer of SEI Asset Allocation Trust, SEI Tax Exempt Trust, SEI Institutional Investments Trust, SEI Institutional International Trust, SEI Institutional Managed Trust, Adviser Managed Trust, New Covenant Funds, SEI Catholic Values Trust, SEI Exchange Traded Funds, SEI Structured Credit Fund LP, The Advisors' Inner Circle Fund, The Advisors' Inner Circle Fund II, Bishop Street Funds, Frost Family of Funds, The Advisors' Inner Circle Fund III, Gallery Trust, Delaware Wilshire Private Markets Fund, Delaware Wilshire Private Markets Master Fund, Delaware Wilshire Private Markets Tender Fund and Catholic Responsible Investments Funds since September 2022. Chief Compliance Officer of SEI Alternative Income Fund since 2023. Fund Compliance Officer of SEI Investments Company from February 2011 to September 2022. Fund Accounting Director and CFO and Controller for the SEI Funds from July 2005 to February 2011.

STEPHEN G. MACRAE (Born: 1967)—Vice President (since 2012)—Director of Global Investment Product Management, January 2004 to present. Vice President of SEI Insurance Products Trust from 2013 to 2020.

KATHERINE MASON (Born: 1979)—Vice President and Assistant Secretary (since 2022)—Consulting Attorney at Hirtle, Callaghan & Co. (investment company) from October 2021 to June 2022. Attorney at Stradley Ronon Stevens & Young, LLP (law firm) from September 2007 to July 2012.

DAVID F. MCCANN (Born: 1976)—Vice President and Assistant Secretary (since 2009)—General Counsel and Secretary of SEI Institutional Transfer Agent, Inc. from 2020 to 2023. Vice President and Assistant Secretary of SIMC since 2008. Vice President and Assistant Secretary of SEI Insurance Products Trust from 2013 to 2020. Attorney at Drinker Biddle & Reath, LLP (law firm) from May 2005 to October 2008.

BRIDGET E. SUDALL (Born: 1980) Anti-Money Laundering Compliance Officer and Privacy Officer (since April 2024 and previously from 2015 to May 2022 and November 2022 to June 2023)—Chief Compliance Officer of SEI Operations since 2018. Senior Associate and AML Officer at Morgan Stanley Alternative Investment Partners from April 2011 to March 2015. Investor Services Team Lead at Morgan Stanley Alternative Investment Partners from July 2007 to April 2011.

PROXY VOTING POLICIES AND PROCEDURES

The Funds have delegated proxy voting responsibilities to SIMC, subject to the Board's general oversight. As required by applicable regulations, SIMC must vote proxies in a manner consistent with the best interest of each investment advisory client who delegates voting responsibility to SIMC, which includes the Funds (each a "Client") and must not place its own interests above those of its Clients. SIMC has adopted its own written proxy voting policies, procedures and guidelines that are reasonably designed to meet this purpose (the "Procedures"). The Procedures may be changed as necessary to remain current with regulatory requirements and internal policies and procedures.

SIMC has elected to retain an independent proxy voting service (the "Service") to vote proxies with respect to its Clients. The Service votes proxies in accordance with guidelines (the "Proxy Guidelines") approved by SIMC's Proxy Voting Committee (the "Proxy Committee") with certain limited exceptions as outlined below. The Proxy Guidelines set forth the manner in which SIMC will vote, or the manner in which SIMC shall determine how to vote, with respect to matters that may come up for shareholder vote. The Service will review each matter on a case-by-case basis and, in most cases, vote the proxies in accordance with the Proxy Guidelines.


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Prior to voting a proxy, the Service makes available to SIMC its recommendation on how to vote in light of the Proxy Guidelines. SIMC retains the authority to overrule the Service's recommendation in certain scenarios (as listed below) and instruct the Service to vote in a manner in variance with the Service's recommendation:

•  Requests by Sub-Advisers to Direct Proxy Votes. Sub-Advisers retained by SIMC to manage the Funds may contact SIMC with requests that SIMC direct a proxy vote in a particular solicitation which would differ from the Service's recommendation.

•  Recommendations by Engagement Vendor. In addition to retaining the Service, SIMC has also engaged a third party vendor to assist with engagement services (the "Engagement Service"). The Engagement Service strives to help investors manage reputational risk and increase corporate accountability through proactive, professional and constructive engagement. It does so by collaborating with investors, facilitating avenues of active ownership (including direct, constructive dialogue with companies) and assisting with shareholder resolutions and proxy voting decisions. As a result of this process, the Engagement Service will at times provide SIMC with proxy voting recommendations that may conflict with the Proxy Guidelines. Recommendations from the Engagement Service to potentially override the Service's recommendation are expected to be limited to companies with which the Engagement Service is engaged on SIMC's behalf, and limited to proxy matters that bear on the subject of the engagement with that issuer.

In all circumstances identified above, the Proxy Committee shall convene and adhere to the conflicts provisions of the Procedures. For any proposal where the Proxy Committee determines that SIMC does not have a material conflict of interest, the Proxy Committee may overrule the Service's recommendation if the Proxy Committee reasonably determines that doing so is in the best interest of the Clients. For any proposal where the Proxy Committee determines that SIMC has a material conflict of interest, SIMC must vote in accordance with the Service's recommendation unless it has first fully disclosed to each Client holding the security at issue the nature of the conflict and obtained each Client's consent as to how SIMC will vote on the proposal. If the Proxy Committee decides to overrule the Service's recommendation, the Proxy Committee shall maintain a written record setting forth the basis of its decision.

In some circumstances, SIMC may determine it is in the best interest of its Clients to abstain from voting certain proxies. These include (but are not necessarily limited to) the following circumstances:

•  Proxy Guidelines do not cover an issue;

•  The Service does not make a recommendation on the issue;

•  SIMC determines that the costs of voting exceed the expected benefits to Clients;

•  The accounts engage in securities lending;

•  The vote is subject to "share blocking," which requires investors who intend to vote to surrender the right to dispose of their shares until after the shareholder meeting, potentially creating liquidity issues; and

•  The Proxy Committee is unable to convene to determine whether the proposal would be in the Client's best interests.

With respect to proxies of an affiliated investment company or series thereof, SIMC will vote such proxies in the same proportion as the vote of all other shareholders of the investment company or series thereof (i.e., "echo vote" or "mirror vote").

With respect to proxies in foreign jurisdictions, certain countries or issuers may require SIMC to have a duly executed power of attorney in place with such country or issuer in order to vote a proxy. The Service may execute, on behalf of SIMC, power of attorney requirements in order to satisfy these requirements. Under circumstances where the issuer, not the jurisdiction, requires an issuer-specific, shareholder-specific or other limited power of attorney in order to vote a proxy, the Service will coordinate with SIMC in order to execute such power of attorney. In these instances, it may not be convenient or practicable to execute a power of attorney in sufficient time to vote proxies in that meeting, and SIMC may abstain from voting.


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For each proxy, SIMC maintains all related records as required by applicable law. The Trust is required to file how all proxies were voted with respect to portfolio securities held by the Funds. A Client may obtain, without charge, a copy of SIMC's Procedures and Proxy Guidelines, or information regarding how the Funds voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, by calling SIMC at 1-800-DIAL-SEI, by writing to SIMC at One Freedom Valley Drive, Oaks, Pennsylvania 19456 or on the SEC's website at http://www.sec.gov.

DETERMINATION OF NET ASSET VALUE

Securities of the Government, Government II and Treasury II Funds will be valued by the amortized cost method, which involves valuing a security at its cost on the date of purchase and thereafter (absent unusual circumstances), assuming a constant amortization to maturity of any discount or premium, regardless of the impact of fluctuations in general market rates of interest on the value of the instrument. While this method provides certainty in valuation, there may be periods during which the value of an instrument, as determined by this method, is higher or lower than the price the Fund would receive if it sold the instrument. During periods of declining interest rates, the daily yield of a Fund may tend to be higher than a like computation made by a company with identical investments utilizing a method of valuation based upon market prices and estimates of market prices for all of its portfolio securities. Thus, if the use of amortized cost by a Fund resulted in a lower aggregate portfolio value on a particular day, a prospective investor in the Fund would be able to obtain a somewhat higher yield than would result from investment in a company utilizing solely market values, and existing shareholders in the Fund would experience a lower yield. The converse would apply in a period of rising interest rates.

A Fund's use of amortized cost valuation (with respect to the Government, Government II and Treasury II Funds) and the maintenance of the Fund's NAV at $1.00 are permitted, provided certain conditions are met under Rule 2a-7, promulgated by the SEC under the 1940 Act. Under Rule 2a-7 (the "Rule"), as amended, a money market portfolio must maintain a dollar-weighted average maturity in its portfolio of 60 days or less and must not purchase any instrument having a remaining maturity of more than 397 days (as calculated under the Rule). The money market funds must maintain a weighted average life maturity of 120 days or less. In addition, money market funds may acquire only U.S. dollar-denominated obligations that present minimal credit risks and that are "eligible securities." An "eligible security" is one that is: (i) rated, at the time of investment, by at least two NRSROs (one if it is the only organization rating such obligation) in the highest short-term rating category or, if unrated, determined to be of comparable quality (a "first tier security"); or (ii) rated according to the foregoing criteria in the second highest short-term rating category or, if unrated, determined to be of comparable quality ("second tier security"). SIMC or a Sub-Adviser, as applicable, will determine that an obligation presents minimal credit risks or that unrated instruments are of comparable quality in accordance with guidelines established by the Trustees. In addition, investments in second tier securities are subject to the further constraints under the Rule that (i) no more than 3% of a money market fund's assets may be invested in such securities in the aggregate, and (ii) any investment in such securities of one issuer is limited to 1/2 of 1% of the Fund's total assets, each percentage limitation measured at the time of acquisition of the security.

The regulations also require the Trustees to establish procedures that are reasonably designed to stabilize the NAV per share at $1.00 for each Fund. However, there is no assurance that each Fund will be able to meet this objective. The Funds' procedures include the determination of the extent of deviation, if any, of each Fund's current NAV per share calculated using available market quotations from each Fund's amortized cost price per share at such intervals as the Trustees deem appropriate and reasonable in light of market conditions and periodic reviews of the amount of the deviation and the methods used to calculate such deviation. In the event that such deviation exceeds 1/2 of 1%, the Trustees are required to consider promptly what action, if any, should be initiated, and, if the Trustees believe that the extent of any deviation may result in material dilution or other unfair results to shareholders, the Trustees are required to take such corrective action as they deem appropriate to eliminate or reduce such dilution or unfair results to the extent reasonably practicable. In addition, if any Fund incurs a significant loss or liability, the Trustees have the authority to reduce pro rata the number of shares of that Fund in each shareholder's account and to offset each shareholder's pro rata portion of such loss or liability from the shareholder's accrued but unpaid dividends or from future dividends.


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Institutional prime money market funds are required to offer shares at a floating NAV based on the current market value of portfolio securities. Retail money market funds and government money market funds will be permitted to continue utilizing the amortized cost method to value portfolio securities and offer shares at a stable NAV (e.g., $1.00).

Securities of the Short-Duration Government, GNMA and Ultra Short Duration Bond Funds may be valued by the Administrator pursuant to valuations provided by independent pricing services. The pricing services rely primarily on prices of actual market transactions as well as trader quotations. However, the pricing services may also use a matrix system to determine valuations, which considers such factors as security prices, yields, maturities, call features, ratings and developments relating to specific securities in arriving at valuations. The procedures of the independent pricing services and the valuation methodologies are reviewed by the officers of the Trust under the general supervision of the Trustees.

The Trust's Board of Trustees has designated SIMC as the Valuation Designee for the Government, Government II, Treasury II, Short-Duration Government, GNMA and Ultra Short Duration Bond Funds pursuant to Rule 2a-5 under the 1940 Act ("Rule 2a-5"). The Valuation Designee has the responsibility for the fair value determination with respect to all Fund investments that do not have readily available market quotations or quotations that are no longer reliable. SIMC has appointed a Valuation Committee (the "Committee") and has established a Valuation and Pricing Policy to implement the Rule and the Funds' Valuation and Pricing Policy (together with SIMC's Valuation and Pricing Policy, the "Fair Value Procedures").

As discussed in detail below, the Committee will typically first seek to fair value investments with valuations received from an independent, third-party pricing agent (a "Pricing Service"). If such valuations are not available or are unreliable, the committee will seek to obtain a bid price from at least one independent broker or dealer. If a broker or dealer quote is unavailable, the Committee will convene, subject to the Fair Value Procedures, to establish a fair value for the fair value investments.

When valuing portfolio securities, securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (other than securities traded on National Association of Securities Dealers Automated Quotations (NASDAQ) or as otherwise noted below), including securities traded over the counter, are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which the securities are traded or, if there is no such reported sale, at the most recent quoted bid price. Securities traded on NASDAQ are valued at the NASDAQ Official Closing Price.

Redeemable securities issued by open-end investment companies are valued at the investment company's applicable NAV per share, with the exception of ETFs, which are priced as equity securities. These open-end investment company shares are offered in separate prospectuses, each of which describes the process by which the applicable investment company's NAV is determined. The prices of foreign securities are reported in local currency and converted to U.S. dollars using currency exchange rates.

Options are valued at the last quoted sales price. If there is no such reported sale on the valuation date, then long positions are valued at the most recent bid price, and short positions are valued at the most recent ask price as provided by a Pricing Service.

Futures and swaps cleared through a central clearing house (centrally cleared swaps) are valued at the settlement price established each day by the board of exchange on which they are traded. The daily settlement prices for financial futures and centrally cleared swaps are provided by a Pricing Service. On days when there is excessive volume, market volatility or the future or centrally cleared swap does not end trading by the time the fund calculates its NAV, the settlement price may not be available at the time at which a fund calculates its NAV. On such days, the best available price (which is typically the last sales price) may be used to value a Fund's futures or centrally cleared swaps position.

If a security's price cannot be obtained, as noted above, or in the case of equity tranches of collateralized loan obligations (CLOs) or collateralized debt obligations (CDOs), the securities will be valued using a bid price from at least one independent broker. If such prices are not readily available, are determined to be unreliable or


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cannot be valued using the methodologies described above, the Valuation Designee will fair value the security using the Fair Value Procedures, as described below.

If available, debt securities, swaps (which are not centrally cleared), bank loans or debt tranches of CLOs/CDOs, such as those held by the Funds, are priced based upon valuations provided by a Pricing Service. Such values generally reflect the last reported sales price if the security is actively traded. The Pricing Service may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations or other methodologies designed to identify the market value for such securities.

On the first day a new debt security purchase is recorded, if a price is not available from a Pricing Service or an independent broker, the security may be valued at its purchase price. Each day thereafter, the debt security will be valued according to the Fair Value Procedures until an independent source can be secured. Securities held by the Funds with remaining maturities of 60 days or less will be valued at their amortized cost. Should existing credit, liquidity or interest rate conditions in the relevant markets and issuer specific circumstances suggest that amortized cost does not approximate fair value, then the security will be valued by an independent broker quote or fair valued by the Valuation Designee.

Foreign currency forward contracts are valued at the current day's interpolated foreign exchange rate, as calculated using forward rates provided by a Pricing Service.

The Valuation Designee and Funds' administrator, as applicable, reasonably believe that prices provided by Pricing Services are reliable. However, there can be no assurance that such Pricing Service's prices will be reliable. The Valuation Designee, who is responsible for making fair value determinations with respect to the Funds' portfolio securities, will, with assistance from the applicable Sub-Adviser, continuously monitor the reliability of readily available market quotations obtained from any Pricing Service and shall promptly notify the Funds' administrator if the Valuation Designee reasonably believes that a Pricing Service is no longer a reliable source of readily available market quotations. The Funds' administrator, in turn, will notify the Valuation Designee if it reasonably believes that a Pricing Service is no longer a reliable source for readily available market quotations.

The Fair Value Procedures provide that any change in a primary Pricing Service or a pricing methodology for investments with readily available market quotations requires prior approval by the Board. However, when the change would not materially affect the valuation of a Fund's net assets or involve a material departure in pricing methodology from that of the Funds' existing Pricing Service or pricing methodology, ratification may be obtained at the next regularly scheduled meeting of the Board. A change in a Pricing Service or a material change in a pricing methodology for investments with no readily available market quotations will be reported to the Board by the Valuation Designee in accordance with certain requirements.

Securities for which market prices are not "readily available" are valued in accordance with Rule 2a-5 and the Fair Value Procedures. The Valuation Designee must monitor for circumstances that may necessitate that a security be valued using Fair Value Procedures which can include: (i) the security's trading has been halted or suspended, (ii) the security has been de-listed from a national exchange, (iii) the security's primary trading market is temporarily closed at a time when under normal conditions it would be open, (iv) the security has not been traded for an extended period of time, (v) the security's primary pricing source is not able or willing to provide a price, (vi) trading of the security is subject to local government-imposed restrictions; or (vii) a significant event (as defined below). When a security is valued in accordance with the Fair Value Procedures, the Valuation Designee will determine the value after taking into consideration relevant information reasonably available to the Valuation Designee. Examples of factors the Valuation Designee may consider include: (i) the type of security or asset, (ii) the last trade price, (iii) evaluation of the forces that influence the market in which the security is purchased and sold, (iv) the liquidity of the security, (v) the size of the holding in the Funds or (vi) any other appropriate information.

The Valuation Designee is responsible for selecting and applying, in a consistent manner, the appropriate methodologies for determining and calculating the fair value of holdings of the Funds, including specifying the key inputs and assumptions specific to each asset class or holding.


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The determination of a security's fair value price often involves the consideration of a number of subjective factors and is therefore subject to the unavoidable risk that the value assigned to a security may be higher or lower than the security's value would be if a reliable market quotation for the security was readily available.

PURCHASE AND REDEMPTION OF SHARES

It is currently the Trust's policy to pay for all redemptions in cash. The Trust retains the right, however, to alter this policy to provide for redemptions in whole or in part by a distribution in kind of readily marketable securities held by a Fund in lieu of cash. Shareholders may incur brokerage charges in connection with the sale of any such securities. A gain or loss for federal income tax purposes would be realized by a shareholder subject to taxation upon an in-kind redemption depending upon the shareholder's basis in the shares of the Fund redeemed.

The Trust reserves the right to suspend the right of redemption and/or to postpone the date of payment upon redemption for any period during which trading on the New York Stock Exchange ("NYSE") is restricted, or during the existence of an emergency (as determined by the SEC by rule or regulation) as a result of which disposal or evaluation of the portfolio securities is not reasonably practicable or for such other periods as the SEC may by order permit. The Trust also reserves the right to suspend sales of shares of a Fund for any period during which the NYSE, the Administrator, SIMC or Funds' Sub-Advisers, the Distributor and/or the custodian are not open for business.

Purchases and redemptions of shares of the Short-Duration Government, GNMA and Ultra Short Duration Bond Funds may be made on any day the NYSE is open for business. Purchases and redemptions of shares of the Government, Government II and Treasury II Funds may be made on any day the NYSE and the Federal Reserve System ("Federal Reserve") are open for business. Currently, the following holidays are observed by the Trust: New Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Additionally, the Exchange closes early on the following days: the day before Independence Day, the day after Thanksgiving and Christmas Eve. In addition, the Government, Government II and Treasury II Funds observe Indigenous Peoples' Day and Veterans Day.

Each of the Government, Government II and Treasury II Funds may operate on any day that the NYSE is closed for business, but the Federal Reserve is open for business, for such time as sufficient liquidity exists in a Fund's principal trading markets, based on the determination of the officers of the Trust, acting in consultation with SIMC or a Sub-Adviser, as applicable.

The Administrator or Distributor will not accept securities as payment for shares of the GNMA Fund unless: (i) such securities meet the investment objective and policies of the Fund; (ii) the securities are acquired for investment and not for resale; (iii) such securities are liquid securities that are not restricted as to transfer either by law or liquidity of market; and (iv) such securities have a value that is readily ascertainable (and not established only by evaluation).

Fund securities may be traded on foreign markets on days other than a Business Day or the NAV of a Fund may be computed on days when such foreign markets are closed. In addition, foreign markets may close at times other than 4:00 p.m. Eastern Time. As a consequence, the NAV of a share of a Fund may not reflect all events that may affect the value of the Fund's foreign securities unless the Adviser determines that such events materially affect NAV, in which case NAV will be determined by consideration of other factors.

Certain shareholders in one or more of the Funds may obtain asset allocation services from SIMC and other financial intermediaries with respect to their investments in such Funds. If a sufficient amount of a Fund's assets are subject to such asset allocation services, the Fund may incur higher transaction costs and a higher portfolio turnover rate than would otherwise be anticipated as a result of redemptions and purchases of Fund shares pursuant to such services. Further, to the extent that SIMC is providing asset allocation services and providing investment advice to the Funds, it may face conflicts of interest in fulfilling its responsibilities because of the possible differences between the interests of its asset allocation clients and the interest of the Funds.


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TAXES

The following is only a summary of certain additional U.S. federal income tax considerations generally affecting the Funds and their shareholders that is intended to supplement the discussion contained in the Prospectuses. No attempt is made to present a detailed explanation of the federal, state, local or foreign tax treatment of the Funds or their shareholders and the discussion here and in the Prospectuses is not intended as a substitute for careful tax planning. Except as expressly discussed below, this summary does not address investors subject to special rules, such as non-U.S. investors and investors who hold shares through an individual retirement account, 401(k) or other tax-advantaged account. You are urged to consult your own tax advisor with specific reference to your own tax situation, including your state, local and foreign tax liabilities.

This discussion of certain U.S. federal income tax consequences is based on the Code, and the regulations issued thereunder, as in effect on the date of this SAI. New legislation, as well as administrative changes or court decisions, may significantly change the conclusions expressed herein and may have a retroactive effect with respect to the transactions contemplated herein.

You are urged to consult with your own tax advisor regarding your investment in the Funds.

Qualification as a Regulated Investment Company

Each Fund has elected and intends to qualify each year to be treated as a RIC under Subchapter M of the Code. By following such a policy, each Fund expects to eliminate or reduce to a nominal amount the federal taxes to which it may be subject. If a Fund qualifies as a RIC, it will generally not be subject to federal income taxes on the net investment income and net realized capital gains that it timely distributes to its shareholders.

In order to qualify as a RIC under the Code, each Fund must distribute annually to its shareholders at least 90% of its net investment income (which includes dividends, taxable interest and the excess of net short-term capital gains over net long-term capital losses, less operating expenses) and at least 90% of its net tax exempt interest income, for each tax year, if any (the "Distribution Requirement") and also must meet certain additional requirements. Among these requirements are the following: (i) at least 90% of each Fund's gross income each taxable year must be derived from dividends, interest, payments with respect to certain securities loans, and gains from the sale or other disposition of stock, securities, or foreign currencies, or other income (including but not limited to gains from options, futures or forward contracts) derived with respect to its business of investing in such stock, securities or currencies, and net income derived from an interest in a QPTP (the "Qualifying Income Test"); and (ii) at the close of each quarter of the Fund's taxable year: (A) at least 50% of the value of each Fund's total assets must be represented by cash and cash items, U.S. Government securities, securities of other RICs and other securities, with such other securities limited, in respect to any one issuer, to an amount not greater than 5% of the value of each Fund's total assets and that does not represent more than 10% of the outstanding voting securities of such issuer, including the equity securities of a QPTP, and (B) not more than 25% of the value of each Fund's total assets is invested, including through corporations in which the Fund owns a 20% or more voting stock interest, in the securities (other than U.S. Government securities or the securities of other RICs) of any one issuer or the securities (other than the securities of another RIC) of two or more issuers that a Fund controls and which are engaged in the same or similar trades or businesses or related trades or businesses, or the securities of one or more QPTPs (the "Asset Test").

Although the Funds intend to distribute substantially all of their net investment income and may distribute their capital gains for any taxable year, the Funds will be subject to federal income taxation to the extent any such income or gains are not distributed. Each Fund is treated as a separate corporation for federal income tax purposes. A Fund therefore is considered to be a separate entity in determining its treatment under the rules for RICs described herein. Losses in one Fund do not offset gains in another and the requirements (other than certain organizational requirements) for qualifying RIC status are determined at the Fund level rather than at the Trust level.

If a Fund fails to satisfy the Qualifying Income or Asset Tests in any taxable year, such Fund may be eligible for relief provisions if the failures are due to reasonable cause and not willful neglect and if a penalty tax is paid with respect to each failure to satisfy the applicable requirements. Additionally, relief is provided for certain de


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minimis failures of the diversification requirements where a Fund corrects the failure within a specified period. If these relief provisions are not available to a Fund for any year in which it fails to qualify as a RIC, all of its taxable income will be subject to tax at the regular corporate rate (currently 21%) without any deduction for distributions to shareholders, and its distributions (including capital gains distributions) generally will be taxable as ordinary income dividends to its shareholders to the extent of a Fund's current and accumulated earnings and profits, subject to the dividends received deduction for corporate shareholders (subject to certain limitations) and lower tax rates on qualified dividend income for individual shareholders. In addition, a Fund could be required to recognize unrealized gains, pay substantial taxes and interest, and make substantial distributions before requalifying as a RIC. The Board reserves the right not to maintain the qualification of each Fund as a RIC if it determines such course of action to be beneficial to shareholders.

A Fund may elect to treat part or all of any "qualified late year loss" as if it had been incurred in the succeeding taxable year in determining the Fund's taxable income, net capital gain, net short-term capital gain, and earnings and profits. The effect of this election is to treat any such "qualified late year loss" as if it had been incurred in the succeeding taxable year in characterizing Fund distributions for any calendar year. A "qualified late year loss" generally includes net capital loss, net long-term capital loss, or net short-term capital loss incurred after October 31 of the current taxable year (commonly referred to as "post-October losses") and certain other late-year losses.

The treatment of capital loss carryovers for the Funds is similar to the rules that apply to capital loss carryovers of individuals, which provide that such losses are carried over indefinitely. If a Fund has a "net capital loss" (that is, capital losses in excess of capital gains), the excess of the Fund's net short-term capital losses over its net long-term capital gains is treated as a short-term capital loss arising on the first day of the Fund's next taxable year, and the excess (if any) of the Fund's net long-term capital losses over its net short-term capital gains is treated as a long-term capital loss arising on the first day of the Fund's next taxable year. The carryover of capital losses may be limited under the general loss limitation rules if a Fund experiences an ownership change as defined in the Code.

Federal Excise Tax

Notwithstanding the Distribution Requirement described above, which generally requires a Fund to distribute at least 90% of its annual investment company taxable income and the excess of its exempt interest income (but does not require any minimum distribution of net capital gain), a Fund will be subject to a nondeductible 4% federal excise tax to the extent it fails to distribute, by the end of any calendar year, at least 98% of its ordinary income for that year and 98.2% of its capital gain net income (the excess of short- and long-term capital gains over short- and long-term capital losses) for the one-year period ending on October 31 of that year (including any retained amount from the prior calendar year on which the Fund paid no federal income tax). The Funds intend to make sufficient distributions to avoid liability for federal excise tax but can make no assurances that such tax will be completely eliminated. For example, a Fund may receive delayed or corrected tax reporting statements from its investments that cause such Fund to accrue additional income and gains after such Fund has already made its excise tax distributions for the year. In such a situation, a Fund may incur an excise tax liability resulting from such delayed receipt of such tax information statements. In addition, the Funds may in certain circumstances be required to liquidate Fund investments in order to make sufficient distributions to avoid federal excise tax liability at a time when the investment adviser might not otherwise have chosen to do so, and liquidation of investments in such circumstances may affect the ability of the Funds to satisfy the requirement for qualification as a RIC.

Fund Distributions

The Funds receive income generally in the form of interest on their investments. This income, plus net short-term capital gains, if any, less expenses incurred in the operation of the Funds, constitutes the Funds' net investment income from which dividends may be paid to you. Any distributions by a Fund from such income will be taxable to you as ordinary income, whether you take them in cash or additional shares. A Fund may derive capital gains and losses in connection with sales or other dispositions of its portfolio of securities.


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Distributions of net short-term capital gains will be taxable to you as ordinary income. Distributions of net long-term capital gains will be taxable to you as long-term capital gain regardless of how long you have held your shares. Long-term capital gains are currently taxed at a maximum rate of 20%. Distributions from capital gains are generally made after applying any available capital loss carryforwards. Because the Funds' income is expected to be derived primarily from interest rather than dividends, no portion of a Fund's distributions is expected to be eligible for the corporate dividends received deduction or for the lower tax rates on qualified dividend income.

A RIC that receives business interest income may pass through its net business interest income for purposes of the tax rules applicable to the interest expense limitations under Section 163(j) of the Code. A RIC's total "Section 163(j) Interest Dividend" for a tax year is limited to the excess of the RIC's business interest income over the sum of its business interest expense and its other deductions properly allocable to its business interest income. A RIC may, in its discretion, designate all or a portion of ordinary dividends as Section 163(j) Interest Dividends, which would allow the recipient shareholder to treat the designated portion of such dividends as interest income for purposes of determining such shareholder's interest expense deduction limitation under Section 163(j). This can potentially increase the amount of a shareholder's interest expense deductible under Section 163(j). In general, to be eligible to treat a Section 163(j) Interest Dividend as interest income, you must have held your shares in a Fund for more than 180 days during the 361-day period beginning on the date that is 180 days before the date on which the share becomes ex-dividend with respect to such dividend. Section 163(j) Interest Dividends, if so designated by a Fund, will be reported to your financial intermediary or otherwise in accordance with the requirements specified by the IRS.

A dividend or distribution received shortly after the purchase of shares reduces the net asset value of the shares by the amount of the dividend or distribution and, although in effect a return of capital, will be taxable to the shareholder. If the net asset value of shares were reduced below the shareholder's cost by dividends or distributions representing gains realized on sales of securities, such dividends or distributions would be a return of investment though taxable to the shareholder in the same manner as other dividends or distributions.

If a Fund's distributions exceed its taxable income and capital gains realized during a taxable year, all or a portion of the distributions made in the same taxable year may be recharacterized as a return of capital to shareholders. A return of capital distribution will generally not be taxable, but will reduce each shareholder's cost basis in a Fund and result in a higher reported capital gain or lower reported capital loss when those shares on which the distribution was received are sold.

Distributions are generally taxable when received. However, distributions declared to shareholders of record in October, November or December and paid in January of the following year will be treated as having been received by shareholders on December 31 of the calendar year in which declared. Under this rule, therefore, a shareholder may be taxed in one year on dividends or distributions actually received in January of the following year.

A Fund (or its administrative agent) will inform you of the amount of your ordinary income dividends and capital gain distributions, if any, at the time they are paid and will advise you of its tax status for federal income tax purposes shortly after the close of each calendar year. If you have not held Fund shares for a full year, a Fund may designate and distribute to you, as ordinary income or capital gain, a percentage of income that is not equal to the actual amount of such income earned during the period of your investment in the Fund.

Sales, Redemptions or Exchanges of Fund Shares

Any gain or loss recognized on a sale, exchange, or redemption of shares of a Fund by a shareholder who holds such shares as a capital asset will generally be treated as long-term capital gain or loss if the shares have been held for more than twelve months and otherwise will be treated as a short-term capital gain or loss. However, if shares on which a shareholder has received a net capital gain distribution are subsequently sold, exchanged, or redeemed and such shares have been held for six months or less, any loss recognized will be treated as a long-term capital loss to the extent of the net capital gain distribution. In addition, other than with respect to shares of a money market fund with a stable NAV, the loss realized on a sale or other disposition of shares will be disallowed to the extent a shareholder repurchases (or enters into a contract to or option to


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repurchase) shares within a period of 61 days (beginning 30 days before and ending 30 days after the disposition of the shares). This loss disallowance rule will apply to shares received through the reinvestment of dividends during the 61-day period. Any loss disallowed under these rules will be added to your tax basis in the new shares you buy. For tax purposes, an exchange of your Fund shares for shares of a different fund is the same as a sale.

The Funds (or their administrative agents) must report to the IRS and furnish to Fund shareholders the cost basis information for purchases of Fund shares. In addition to reporting the gross proceeds from the sale of Fund shares, each Fund (or its administrative agent) is also required to report the cost basis information for such shares and indicate whether these shares have a short-term or long-term holding period. For each sale of its shares, each Fund will permit its shareholders to elect from among several IRS-accepted cost basis methods, including the average cost basis method. In the absence of an election, each Fund will use a default cost basis method. The cost basis method elected by shareholders (or the cost basis method applied by default) for each sale of a Fund's shares may not be changed after the settlement date of each such sale of a Fund's shares. Shareholders should consult with their tax advisors to determine the best IRS-accepted cost basis method for their tax situation and to obtain more information about cost basis reporting. Shareholders also should carefully review any cost basis information provided to them and make any additional basis, holding period or other adjustments that are required when reporting these amounts on their federal income tax returns.

Net Investment Income Tax

U.S. individuals with income exceeding $200,000 ($250,000 if married and filing jointly) are subject to a 3.8% tax on their "net investment income," including interest, dividends, and capital gains (including capital gains realized on the sale or exchange of Fund shares).

Taxation of Fund Investments

A Fund may invest in complex securities. These investments may be subject to complex tax rules that, among other things, may affect a Fund's ability to qualify as a RIC, affect the character of gains and losses recognized by a Fund (e.g., may affect whether gains or losses are treated as ordinary or capital), accelerate the recognition of income to a Fund and defer a Fund's ability to recognize losses. In turn, those rules may affect the amount, timing or character of the income distributed to you by a Fund and may require the Funds to sell securities to mitigate the effect of these rules and prevent disqualification of a Fund as a RIC at a time when the Adviser might not otherwise have chosen to do so.

Each Fund is required for federal income tax purposes to mark-to-market and recognize as income for each taxable year its net unrealized gains and losses on certain futures and options contracts subject to section 1256 of the Code ("Section 1256 Contracts") as of the end of the year as well as those actually realized during the year. Gain or loss from Section 1256 Contracts on broad-based indexes required to be marked to market will be 60% long-term and 40% short-term capital gain or loss. Application of this rule may alter the timing and character of distributions to shareholders. A Fund may be required to defer the recognition of losses on Section 1256 Contracts to the extent of any unrecognized gains on offsetting positions held by the Fund. These provisions may also require the Funds to mark-to-market certain types of positions in their portfolios (i.e., treat them as if they were closed out), which may cause a Fund to recognize income without receiving cash with which to make distributions in amounts necessary to satisfy the Distribution Requirement and for avoiding the excise tax discussed above. Accordingly, in order to avoid certain income and excise taxes, a Fund may be required to liquidate its investments at a time when the Adviser might not otherwise have chosen to do so.

Investments by a Fund in STRIPS, TRs, zero coupon or other discount securities will result in income to the Fund equal to a portion of the excess face value of the securities over their issue price (the "original issue discount" or "OID") each year that the securities are held, even though the Fund receives no cash interest payments. In other circumstances, whether pursuant to the terms of a security or as a result of other factors outside the control of a Fund, such Fund may recognize income without receiving a commensurate amount of cash. Such income is included in determining the amount of income that the Fund must distribute to maintain its status as a RIC and to avoid the payment of federal income tax, including the nondeductible excise tax.


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Because such income may not be matched by a corresponding cash distribution to a Fund, any such Fund may be required to borrow money or dispose of other securities to be able to make distributions to its shareholders.

Any market discount recognized on a bond is taxable as ordinary income. A market discount bond is a bond acquired in the secondary market at a price below redemption value or adjusted issue price if issued with original issue discount. Absent an election by a Fund to include the market discount in income as it accrues, gain on the Fund's disposition of such an obligation will be treated as ordinary income rather than capital gain to the extent of the accrued market discount.

Special rules apply if a Fund holds inflation-indexed bonds. Generally, all stated interest on such bonds is recorded as income by a Fund under its regular method of accounting for interest income. The amount of positive inflation adjustment, which results in an increase in the inflation-adjusted principal amount of the bond, is treated as OID. The OID is included in a Fund's gross income ratably during the period ending with the maturity of the bond, under the general OID inclusion rules. The amount of a Fund's OID in a taxable year with respect to a bond will increase the Fund's taxable income for such year without a corresponding receipt of cash, until the bond matures. As a result, a Fund may need to use other sources of cash to satisfy its distributions for such year. The amount of negative inflation adjustments, which results in a decrease in the inflation-adjusted principal amount of the bond, reduces the amount of interest (including stated interest, OID, and market discount, if any) otherwise includible in a Fund's income with respect to the bond for the taxable year.

Investments in debt obligations that are at risk of or in default present special tax issues for a Fund. Tax rules are not entirely clear about issues such as when a Fund may cease to accrue interest, OID or market discount, whether or to what extent a Fund should recognize market discount on a debt obligation, when and to what extent a Fund may take deductions for bad debts or worthless securities and how a Fund should allocate payments received on obligations in default between principal and income. These and other related issues will be addressed by a Fund when, as, and if it invests in such securities, in order to seek to ensure that it distributes sufficient income to preserve its status as a RIC and does not become subject to U.S. federal income or excise tax.

If a Fund owns shares in certain foreign investment entities, referred to as "passive foreign investment companies" or "PFICs", the Fund will generally be subject to one of the following special tax regimes: (i) the Fund may be liable for U.S. federal income tax, and an additional interest charge, on a portion of any "excess distribution" from such foreign entity or any gain from the disposition of such shares, even if the entire distribution or gain is paid out by the Fund as a dividend to its shareholders; (ii) if the Fund were able and elected to treat a PFIC as a "qualified electing fund" or "QEF," the Fund would be required each year to include in income, and distribute to shareholders in accordance with the distribution requirements set forth above, the Fund's pro rata share of the ordinary earnings and net capital gains of the PFIC, whether or not such earnings or gains are distributed to the Fund; or (iii) the Fund may be entitled to mark-to-market annually shares of the PFIC, and in such event would be required to distribute to shareholders any such mark-to-market gains in accordance with the distribution requirements set forth above. Such Fund intends to make the appropriate tax elections, if possible, and take any additional steps that are necessary to mitigate the effect of these rules. Amounts included in income each year by a Fund arising from a QEF election will be "qualifying income" under the Qualifying Income Test (as described above) even if not distributed to the Fund, if the Fund derives such income from its business of investing in stock, securities or currencies.

Backup Withholding

By law, a Fund must withhold at a withholding rate of 24% and remit to the U.S. Treasury, any amounts subject to withholding on your taxable distributions and proceeds if: (i) you do not provide your correct social security or taxpayer identification number; (ii) you are subject to backup withholding by the IRS for failure to properly report payments of interest or dividends; (iii) you have failed to certify that you are not subject to backup withholding, or (iv) you have failed to certify that you are a U.S. person (including a U.S. resident alien). Any amounts withheld may be credited against the shareholder's U.S. federal income tax liability, provided the appropriate information is furnished to the IRS.


S-64


Tax Shelter Reporting Regulations

Under U.S. Treasury regulations, generally, if a shareholder recognizes a loss of $2 million or more for an individual shareholder or $10 million or more for a corporate shareholder, the shareholder must file with the IRS a disclosure statement on Form 8886. Direct shareholders of portfolio securities are in many cases excepted from this reporting requirement, but under current guidance, shareholders of a RIC such as a Fund are not excepted. Future guidance may extend the current exception from this reporting requirement to shareholders of most or all RICs. The fact that a loss is reportable under these regulations does not affect the legal determination of whether the taxpayer's treatment of the loss is proper. Shareholders should consult their tax advisors to determine the applicability of these regulations in light of their individual circumstances.

Foreign Tax Issues

Interest received by a Fund may be subject to income, withholding or other taxes imposed by foreign countries and U.S. possessions that would reduce the yield on the Fund's stock or securities. Tax conventions between certain countries and the U.S. may reduce or eliminate these taxes. Foreign countries generally do not impose taxes on capital gains with respect to investments by foreign investors.

Tax-Exempt Shareholders

Certain tax-exempt shareholders, including qualified pension plans, individual retirement accounts, salary deferral arrangements, 401(k)s and other tax-exempt entities, generally are exempt from federal income taxation except with respect to their unrelated business taxable income ("UBTI"). Tax-exempt entities are not permitted to offset losses from one trade or business against the income or gain of another trade or business. Certain net losses incurred prior to January 1, 2018 are permitted to offset gain and income created by an unrelated trade or business, if otherwise available. The Funds serve to block UBTI from being realized by their tax-exempt shareholders. However, notwithstanding the foregoing, tax-exempt shareholders could realize UBTI by virtue of an investment in a Fund where, for example: (i) the Fund invests in residual interests of REMICs; (ii) the Fund invests in a REIT that is a taxable mortgage pool ("TMP") or that has a subsidiary that is TMP or that invests in the residual interest of a REMIC; or (iii) shares in the Fund constitute debt-financed property in the hands of the tax-exempt shareholder within the meaning of section 514(b) of the Code. Charitable remainder trusts are subject to special rules and should consult their tax advisors. The IRS has issued guidance with respect to these issues and prospective shareholders, especially charitable remainder trusts, are strongly encouraged to consult their tax advisors regarding these issues.

The Funds' shares held in a tax-qualified retirement account will generally not be subject to federal taxation on income and capital gains distributions from a Fund until a shareholder begins receiving payments from their retirement account.

State Taxes

It is expected that each Fund will not be liable for any corporate excise, income or franchise tax in Massachusetts if it qualifies as a RIC for federal income tax purposes. Distributions by a Fund to shareholders and the ownership of shares may be subject to state and local taxes.

Rules of state and local taxation of dividend and capital gains distributions from RICs often differ from the rules for federal income taxation described above. Shareholders are urged to consult their tax advisors as to the consequences of these and other state and local tax rules affecting an investment in Fund shares.

Many states grant tax-free status to dividends paid to you from interest earned on direct obligation of the U.S. Government, subject in some states to minimum investment requirements that must be met by a Fund. Investment in GNMA or Fannie Mae securities, bankers' acceptances, commercial paper and repurchase agreements collateralized by U.S. Government securities do not generally qualify for such tax-free treatment. The rules on exclusion of this income are different for corporate shareholders.


S-65


The foregoing discussion is a summary only and is not intended as a substitute for careful tax planning. Purchasers of Fund shares should consult their own tax advisors as to the tax consequences of investing in such shares, including under state, local and other tax laws.

PORTFOLIO TRANSACTIONS

Brokerage Transactions. Generally, equity securities are bought and sold through brokerage transactions for which commissions are payable. Purchases from underwriters will include the underwriting commission or concession, and purchases from dealers serving as market makers will include a dealer's mark-up or reflect a dealer's mark-down. Money market securities and other debt securities are usually bought and sold directly from the issuer or an underwriter or market maker for the securities. Generally, the Funds will not pay brokerage commissions for such purchases. When a debt security is bought from an underwriter, the purchase price will usually include an underwriting commission or concession. The purchase price for securities bought from dealers serving as market makers will similarly include the dealer's mark-up or reflect a dealer's mark-down. When a Fund executes transactions in the over-the-counter market, it will generally deal with primary market makers unless prices that are more favorable are otherwise obtainable.

Brokerage Selection. The Trust has no obligation to deal with any dealer or group of brokers or dealers in the execution of transactions in portfolio securities. Subject to policies established by the Trustees, SIMC and the Funds' Sub-Advisers are responsible for placing orders to execute Fund transactions. In placing brokerage orders, it is the Trust's policy to seek to obtain the best net results taking into account such factors as price (including the applicable dealer spread), size, type and difficulty of the transaction involved, the firm's general execution and operational facilities and the firm's risk in positioning the securities involved. While SIMC and the Sub-Advisers generally seek reasonably competitive spreads or commissions, the Trust will not necessarily be paying the lowest spread or commission available. The Trust's policy of investing in securities with short term maturities may result in high portfolio turnover. The Trust will not purchase portfolio securities from any affiliated person acting as principal except in conformity with the regulations of the SEC.

The money market securities in which certain of the Funds invest are traded primarily in the OTC market. Bonds and debentures are usually traded over-the-counter, but may be traded on an exchange. Where possible, the Adviser and the Sub-Advisers will deal directly with the broker-dealers who make a market in the securities involved except in those circumstances where better prices and execution are available elsewhere. Such broker-dealers usually are acting as principal for their own account. On occasion, securities may be purchased directly from the issuer. Money market securities are generally traded on a net basis and do not normally involve brokerage commissions, dealer spreads or underwriting discounts, or transfer taxes or other direct transaction expenses.

It is expected that certain Funds may execute a substantial portion of their brokerage or other agency transactions through the Distributor, a registered broker-dealer, for a commission, in conformity with the 1940 Act, the 1934 Act and rules of the SEC. In such trades, the Distributor receives a commission as the introducing broker on such trades. An unaffiliated third-party broker selected by SIMC or the relevant Sub-Adviser provides execution and clearing services with respect to such trade and is compensated for such services from the commission paid on the trade. More specifically, SIMC requests, but does not require, that certain Sub-Advisers execute up to 30% of trades with the Distributor as introducing broker. In addition, SIMC will, from time to time, execute trades with the Distributor as introducing broker, primarily in connection with the trading associated with the transition of portfolios when there is a change in sub-advisers in a Fund or a reallocation of assets among Sub-Advisers. In addition, a Fund may direct commission business to one or more designated broker-dealers, including the Distributor, in connection with such broker-dealer's payment of certain of the Fund's expenses. The Trustees, including those who are not "interested persons" of the Trust, have adopted procedures for evaluating the reasonableness of commissions paid to the Distributor and will review these procedures periodically. The Funds do not direct brokerage to brokers in recognition of, or as compensation for, the sale of Fund shares.


S-66


For the fiscal years ended January 31, 2023, 2024 and 2025, the Funds paid the following brokerage fees:

    Total $ Amount
of Brokerage
Commissions
Paid
(000)
  Total $ Amount
of Brokerage
Commissions
Paid to
Affiliated Brokers
(000)
  % of Total
Brokerage
Commissions
Paid to
Affiliated
Brokers
  % of Total
Brokerage
Transactions
Effected Through
Affiliated Brokers
 

Fund

 

2023

 

2024

 

2025

 

2023

 

2024

 

2025

 

2025

 

2025

 
Ultra Short Duration
Bond Fund
 

$

1

   

$

1

   

$

1

   

$

0

   

$

0

   

$

0

     

0

%

   

0

%

 
Short-Duration Government
Fund
 

$

47

   

$

52

   

$

39

   

$

0

   

$

0

   

$

0

     

0

%

   

0

%

 
GNMA Fund  

$

1

   

$

1

   

$

1

   

$

0

   

$

0

   

$

0

     

0

%

   

0

%

 

The Trust does not expect to use one particular dealer, but, subject to the Trust's policy of seeking the best net results, dealers who provide supplemental investment research to the Adviser or a Sub-Adviser may receive orders for transactions by the Trust. Information so received will be in addition to and not in lieu of the services required to be performed by SIMC or a Sub-Adviser under its respective advisory or sub-advisory agreement, and the expenses of SIMC or a Sub-Adviser will not necessarily be reduced as a result of the receipt of such supplemental information.

The Trust is required to identify any securities of its "regular brokers or dealers" (as such term is defined in the 1940 Act) that the Trust has acquired during its most recent fiscal year. As of January 31, 2025, the Trust held the following securities:

Fund

 

Name of Issuer

 

Type of Security

 

Amount (000)

 

Ultra Short Duration Bond Fund

 

MORGAN STANLEY

 

DEBT

 

$

2,387

   
   

BANK OF AMERICA

 

DEBT

 

$

2,078

   
   

GOLDMAN SACHS

 

DEBT

 

$

1,654

   
   

UBS SECURITIES

 

DEBT

 

$

1,618

   
   

JP MORGAN CHASE BANK

 

DEBT

 

$

1,462

   
   

CITIGROUP

 

DEBT

 

$

1,276

   

The portfolio turnover rate for each fixed income Fund for the fiscal years ending January 31, 2024 and 2025 was as follows:

   

Turnover Rate

 

Fund

 

2024

 

2025

 
Ultra Short Duration Bond Fund    

75

%

   

60

%

 
Short-Duration Government Fund    

178

%

   

99

%

 
GNMA Fund    

145

%

   

246

%

 

A portfolio's turnover rate will exceed 100% if all of its securities, exclusive of U.S. Government securities and other securities whose maturities at the time of acquisition are one year or less, are replaced in the period of one year. Turnover rates may vary from year to year and may be affected by cash requirements for redemptions and by requirements that enable a Fund to receive favorable tax treatment.

DISCLOSURE OF PORTFOLIO HOLDINGS INFORMATION

The Funds' portfolio holdings can be obtained on the Internet at the following address: http://www.seic.com/holdings (the "Portfolio Holdings Website"). The Board has approved a policy that provides that portfolio holdings may not be made available to any third party until after such information has been posted on the Portfolio Holdings Website, with limited exceptions noted below. This policy seeks to ensure that the disclosure of information regarding the Funds' portfolio securities is in the best interests of Fund shareholders, and includes procedures to address conflicts of interest.


S-67


Five calendar days after the end of each month, a list of all portfolio holdings in each Fund as of the end of such month and other information regarding each Fund's portfolio and its portfolio holdings shall be made available on the Portfolio Holdings Website. This information shall remain on the Portfolio Holdings Website until the fifth calendar day of the thirteenth calendar month after the date to which the data relates, at which time it will be permanently removed from the site.

On the Monday following each week end, a list of all portfolio holdings in the Government, Government II and Treasury II Funds as of the end of such week shall be made available on the Portfolio Holdings Website. This information shall remain on the Portfolio Holdings Website until the following Monday at which time it will be permanently removed from the site.

Beginning on the day after any portfolio holdings information is posted on the Portfolio Holdings Website, such information will be delivered directly to any person that requests it, through electronic or other means. In addition to a list of all the Funds' portfolio holdings, the Portfolio Holdings Website may include certain attributes of (a) a Fund's portfolio holdings, such as CUSIP, yield, maturity date, a general category of the instrument, amortized cost value and principal amount, and (b) a Fund's portfolio, such as the Fund's dollar-weighted average portfolio maturity and dollar-weighted average life.

Portfolio holdings information may be provided to independent third-party fund reporting services (e.g., Broadridge, Lipper or Morningstar) for a legitimate business purpose, but will be delivered no earlier than the date such information is posted on the Portfolio Holdings Website, unless the reporting service executes a confidentiality agreement with the Trust that is satisfactory to the Trust's officers and that provides that the reporting service will keep the information confidential and will not trade on the information.

Portfolio holdings information may also be provided at any time and as frequently as daily to the Funds' Trustees, SIMC, the Sub-Advisers, the Distributor, the Administrator and certain other service providers, as well as additional contractors and vendors that may include, but are not limited to: the custodian and sub-custodian, the transfer agent, attorneys, independent auditors, securities lending agents, tax filing and reclamation vendors, class-action monitoring and filing vendors, printing and filing vendors, proxy vendors and providers of portfolio monitoring and analytical tools. Service providers will be subject to a duty of confidentiality with respect to any portfolio holdings information, whether imposed by a confidentiality agreement, the provisions of the service provider's contract with the Trust, or by the nature of its relationship with the Trust, and such service providers will be prohibited from trading on the information.

Portfolio holdings of a Fund may also be provided to a prospective service provider for that Fund, so long as the prospective service provider executes a confidentiality agreement with the Fund in such form as deemed acceptable by an officer of the Fund. Additionally, a Sub-Adviser may provide portfolio holdings information to third-party service providers in connection with its duties as a Sub-Adviser, provided that the Sub-Adviser is responsible for such third-party's confidential treatment of such data. The Sub-Adviser is also obligated, pursuant to its fiduciary duty to the relevant Fund, to ensure that any third-party service provider will keep the information confidential and has a duty not to trade on any portfolio holdings information it receives other than subject to the Sub-Adviser's instruction.

The Board exercises on-going oversight of the disclosure of Fund portfolio holdings by overseeing the implementation of the Funds' policies and procedures by the Chief Compliance Officer.

Neither the Funds, SIMC, nor any other service provider to the Funds may receive compensation or other consideration for providing portfolio holdings information.

The Trust files a complete schedule of the Ultra Short Duration Bond, Short-Duration Government, and GNMA Funds' investments within 60 days after the end of each fiscal quarter pursuant to Form N-CSR and/or as exhibits to Form N-PORT. The Government, Government II and Treasury II Funds also file a complete schedule of their portfolio holdings with the SEC monthly, within 5 business days after the end of each month, on Form N-MFP. Complete schedules of investments filed with the SEC on Form N-MFP, Form N-CSR, and as exhibits to Form N-PORT, are not distributed to Fund shareholders, unless requested, but are available, free of charge, on the EDGAR database on the SEC's website at www.sec.gov and on the Funds' website.


S-68


DESCRIPTION OF SHARES

The Declaration of Trust authorizes the issuance of an unlimited number of shares of each Fund, each of which represents an equal proportionate interest in that Fund. Each share of a Fund upon liquidation of that Fund entitles a shareholder to a pro rata share in the net assets of that Fund after taking into account certain distribution expenses. Shareholders have no preemptive rights. The Declaration of Trust provides that the Trustees may create additional portfolios of shares or classes of portfolios. Any consideration received by the Trust for shares of any additional portfolio and all assets in which such consideration is invested would belong to that portfolio and would be subject to the liabilities related thereto. Share certificates representing the shares will not be issued.

LIMITATION OF TRUSTEES' LIABILITY

The Declaration of Trust provides that a Trustee shall be liable only for his or her own willful defaults and, if reasonable care has been exercised in the selection of officers, agents, employees or administrators, shall not be liable for any neglect or wrongdoing of any such person. The Declaration of Trust also provides that the Trust will indemnify its Trustees and officers against liabilities and expenses incurred in connection with actual or threatened litigation in which they may be involved because of their offices with the Trust unless it is determined in the manner provided in the Declaration of Trust that they have not acted in good faith in the reasonable belief that their actions were in the best interests of the Trust. However, nothing in the Declaration of Trust shall protect or indemnify a Trustee against any liability for his or her willful misfeasance, bad faith, gross negligence or reckless disregard of his or her duties.

CODES OF ETHICS

The Board has adopted a Code of Ethics pursuant to Rule 17j-1 under the 1940 Act. In addition, SIMC, the Sub-Advisers and the Distributor have adopted Codes of Ethics pursuant to Rule 17j-1. These Codes of Ethics apply to the personal investing activities of trustees, officers and certain employees ("access persons"). Rule 17j-1 and the Codes of Ethics are reasonably designed to prevent unlawful practices in connection with the purchase or sale of securities by access persons. Under each Code of Ethics, access persons at most Sub-Advisers are permitted to engage in personal securities transactions, including securities that may be purchased or held by the Funds, but are required to report their personal securities transactions for monitoring purposes. In addition, certain access persons are required to obtain approval before investing in IPOs or private placements, or are prohibited from making such investments. Access persons at certain Sub-Advisers may be prohibited from engaging in personal securities transactions entirely. Copies of these Codes of Ethics are on file with the SEC and are available to the public.

VOTING

Where the Prospectuses for the Funds or SAI state that an investment limitation or a fundamental policy may not be changed without shareholder approval, such approval means the vote of: (i) 67% or more of a Fund's shares present at a meeting if the holders of more than 50% of the outstanding shares of the Fund are present or represented by proxy; or (ii) more than 50% of a Fund's outstanding shares, whichever is less.

SHAREHOLDER LIABILITY

The Trust is an entity of the type commonly known as a "Massachusetts business trust." Under Massachusetts law, shareholders of the Trust could, under certain circumstances, be held personally liable as partners for the obligations of the Trust. Even if, however, the Trust were held to be a partnership, the possibility of the shareholders incurring financial loss for that reason appears remote because the Trust's Declaration of Trust contains an express disclaimer of shareholder liability for obligations of the Trust and requires that notice of such disclaimer be given in each agreement, obligation or instrument entered into or executed by or on behalf of the Trust or the Trustees, and because the Declaration of Trust provides for indemnification out of the Trust property for any shareholders held personally liable for the obligations of the Trust.


S-69


CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES

As of Thursday, May 13, 2025, the following persons were the only persons who were record owners (or, to the knowledge of the Trust, beneficial owners) of 5% and 25% or more of the shares of the Funds. Persons who owned of record or beneficially more than 25% of a Fund's outstanding shares may be deemed to control the Fund within the meaning of the 1940 Act. Shareholders controlling a Fund could have the ability to vote a majority of the shares of the Fund on any matter requiring the approval of shareholders of the Fund. The Trust believes that most of the shares referred to below were held by the following persons in accounts for their fiduciary, agency or custodial customers.

Name and Address

 

Number of Shares

 

Percent of Fund/Class

 

Government Fund—Institutional Shares

 
Band & Co C/O of US BANK
PO BOX 1787   
Milwaukee, WI 53201-1787
  1,571,146,802.48
  34.93

%

 
SEI Private Trust Company
Attn: Mutual Fund Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  568,145,866.52
  12.63

%

 
SEI Private Trust Company
C/O Newport Trust Company   
Attn: Mutual Fund Administrator   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  391,738,817.69
  8.71

%

 
SEI Private Trust Company
C/O PA Trust Company   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  313,304,879.45
  6.97

%

 
SEI Private Trust Company
C/O Private Wealth Management   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  237,695,174.7
  5.28

%

 

Government Fund—Admin Class Shares

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  10,998,595.62
  97.58

%

 

Government Fund—Wealth Class Shares

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  1,908,844,884.61
  95.25

%

 


S-70


Name and Address

 

Number of Shares

 

Percent of Fund/Class

 

Government II Fund—Class F Shares

 
SEI Private Trust Company
Attn: Mutual Fund Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  480,751,285.76
  32.78

%

 
SEI Private Trust Company
C/O Houston Trust   
Attn: Mutual Fund Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  456,551,173.22
  31.13

%

 
SEI Private Trust Company
Attn: Mutual Fund Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  140,170,065.11
  9.56

%

 
SEI Private Trust Company
Mutual Funds Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  119,174,974.69
  8.13

%

 
SEI Private Trust Company
C/O Counsel Trust   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  95,268,013.88
  6.5

%

 
SEI Private Trust Company
C/O Bar Harbor SWP   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  87,276,752.03
  5.95

%

 

Treasury Fund II—Class F Shares

 
SEI Private Trust Company
C/O GWP Advisors   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  962,440,574.29
  62.74

%

 
SEI Private Trust Company
C/O Philadelphia Trust   
Attn: Mutual Fund Admin   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  325,878,365.25
  21.24

%

 
SEI Private Trust Company
C/O The Peoples Bank   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  94,561,630.82
  6.16

%

 


S-71


Name and Address

 

Number of Shares

 

Percent of Fund/Class

 

Ultra Short Duration Bond Fund—Class F Shares

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  11,951,610.062
  83.04

%

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  1,851,742.374
  12.87

%

 

Ultra Short Duration Bond Fund—Class Y Shares

 
SEI Private Trust Company
C/O GWS US ADVISORS Y Shares   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  6,227,801.196
  93.39

%

 

Short-Duration Government Fund—Class F Shares

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  41,035,778.109
  72.35

%

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  11,592,231.497
  20.44

%

 

Short-Duration Government Fund—Class Y Shares

 
SEI Private Trust Company
C/O GWS US ADVISORS Y Shares   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  661,036.137
  27.01

%

 
SEI Asset Allocation Moderate Strategy Fund
Attn: Jack McCue   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  513,801.314
  21.00

%

 
SEI Asset Allocation Conservative Strategy Fund
Attn: Jack McCue   
SEI Investment Management Unit   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  411,108.113
  16.8

%

 
SEI Asset Allocation Defensive Strategy Fund
One Freedom Valley Drive   
Oaks, PA 19456-9989
  258,225.664
  10.55

%

 


S-72


Name and Address

 

Number of Shares

 

Percent of Fund/Class

 
Charles Schwab & Co Inc
Special Custody A/C FBO Customers   
Attn: Mutual Funds   
211 Main Street   
San Francisco, CA 94105-1905
  211,671.149
  8.65

%

 
SEI Private Trust Company
C/O GWS US ADVISORS Y Shares   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  122,650.253
  5.01

%

 

GNMA Fund—Class F Shares

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  594,737.074
  41.65

%

 
Pershing Division of DLJ
Attn: Mutual Funds   
P.O. Box 2052   
Jersey City, NJ 07303-2052
  479,281.113
  33.56

%

 
SEI Private Trust Company
C/O GWP US ADVISORS   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  150,563.855
  10.54

%

 

GNMA Fund—Class Y Shares

 
SEI Private Trust Company
C/O GWS US ADVISORS Y Shares   
One Freedom Valley Drive   
Oaks, PA 19456-9989
  141,683.618
  96.69

%

 

CUSTODIAN

U.S. Bank National Association ("U.S. Bank"), located at 425 Walnut Street, Cincinnati, Ohio 45202, serves as custodian and acts as wire agent of the assets of the Funds. U.S. Bank holds cash, securities and other assets of the Trust as required by the 1940 Act.

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

KPMG LLP, located at 1735 Market Street, Philadelphia, PA 19103, serves as the Trust's independent registered public accounting firm.

LEGAL COUNSEL

Morgan, Lewis & Bockius LLP, located at 2222 Market Street, Philadelphia, Pennsylvania 19103, serves as legal counsel to the Trust.


S-73


APPENDIX A
DESCRIPTION OF RATINGS

Description of Ratings

The following descriptions of securities ratings have been published by Moody's Investors Services, Inc. ("Moody's"), S&P Global Ratings ("S&P"), and Fitch Ratings ("Fitch"), respectively.

Description of Moody's Global Ratings

Ratings assigned on Moody's global long-term and short-term rating scales are forward-looking opinions of the relative credit risks of financial obligations issued by non-financial corporates, financial institutions, structured finance vehicles, project finance vehicles, and public sector entities. Long-term ratings are assigned to issuers or obligations with an original maturity of eleven months or more and reflect both on the likelihood of a default or impairment on contractual financial obligations and the expected financial loss suffered in the event of default or impairment. Short-term ratings are assigned to obligations with an original maturity of thirteen months or less and reflect both on the likelihood of a default or impairment on contractual financial obligations and the expected financial loss suffered in the event of default or impairment.

Description of Moody's Global Long-Term Ratings

Aaa  Obligations rated Aaa are judged to be of the highest quality, subject to the lowest level of credit risk.

Aa  Obligations rated Aa are judged to be of high quality and are subject to very low credit risk.

A  Obligations rated A are judged to be upper-medium grade and are subject to low credit risk.

Baa   Obligations rated Baa are judged to be medium-grade and subject to moderate credit risk and as such may possess certain speculative characteristics.

Ba  Obligations rated Ba are judged to be speculative and are subject to substantial credit risk.

B  Obligations rated B are considered speculative and are subject to high credit risk.

Caa  Obligations rated Caa are judged to be speculative of poor standing and are subject to very high credit risk.

Ca  Obligations rated Ca are highly speculative and are likely in, or very near, default, with some prospect of recovery of principal and interest.

C  Obligations rated C are the lowest rated and are typically in default, with little prospect for recovery of principal or interest.

Note: Moody's appends numerical modifiers 1, 2, and 3 to each generic rating classification from Aa through Caa. The modifier 1 indicates that the obligation ranks in the higher end of its generic rating category; the modifier 2 indicates a mid-range ranking; and the modifier 3 indicates a ranking in the lower end of that generic rating category.

Hybrid Indicator (hyb)

The hybrid indicator (hyb) is appended to all ratings of hybrid securities issued by banks, insurers, finance companies, and securities firms. By their terms, hybrid securities allow for the omission of scheduled dividends, interest, or principal payments, which can potentially result in impairment if such an omission occurs. Hybrid securities may also be subject to contractually allowable write-downs of principal that could result in impairment. Together with the hybrid indicator, the long-term obligation rating assigned to a hybrid security is an expression of the relative credit risk associated with that security.


A-1


Description of Moody's Global Short-Term Ratings

P-1  Issuers (or supporting institutions) rated Prime-1 have a superior ability to repay short-term debt obligations.

P-2  Issuers (or supporting institutions) rated Prime-2 have a strong ability to repay short-term debt obligations.

P-3  Issuers (or supporting institutions) rated Prime-3 have an acceptable ability to repay short-term obligations.

NP  Issuers (or supporting institutions) rated Not Prime do not fall within any of the Prime rating categories.

Description of Moody's U.S. Municipal Short-Term Obligation Ratings

The Municipal Investment Grade ("MIG") scale is used to rate U.S. municipal cash flow notes, bond anticipation notes and certain other short-term obligations, which typically mature in three years or less.

Moody's U.S. municipal short-term obligation ratings are as follows:

MIG 1  This designation denotes superior credit quality. Excellent protection is afforded by established cash flows, highly reliable liquidity support, or demonstrated broad-based access to the market for refinancing.

MIG 2  This designation denotes strong credit quality. Margins of protection are ample, although not as large as in the preceding group.

MIG 3  This designation denotes acceptable credit quality. Liquidity and cash-flow protection may be narrow, and market access for refinancing is likely to be less well-established.

SG  This designation denotes speculative-grade credit quality. Debt instruments in this category may lack sufficient margins of protection.

Description of Moody's Demand Obligation Ratings

In the case of variable rate demand obligations ("VRDOs"), Moody's assigns both a long-term rating and a short-term payment obligation rating. The long-term rating addresses the issuer's ability to meet scheduled principal and interest payments. The short-term payment obligation rating addresses the ability of the issuer or the liquidity provider to meet any purchase price payment obligation resulting from optional tenders ("on demand") and/or mandatory tenders of the VRDO. The short-term payment obligation rating uses the Variable Municipal Investment Grade ("VMIG") scale. Transitions of VMIG ratings with conditional liquidity support differ from transitions of Prime ratings reflecting the risk that external liquidity support will terminate if the issuer's long-term rating drops below investment grade. For VRDOs, Moody's typically assigns a VMIG rating if the frequency of the payment obligation is less than every three years. If the frequency of the payment obligation is less than three years, but the obligation is payable only with remarketing proceeds, the VMIG short-term rating is not assigned and it is denoted as "NR".

Moody's demand obligation ratings are as follows:

VMIG 1  This designation denotes superior credit quality. Excellent protection is afforded by the superior short-term credit strength of the liquidity provider and structural and legal protections.

VMIG 2  This designation denotes strong credit quality. Good protection is afforded by the strong short-term credit strength of the liquidity provider and structural and legal protections.

VMIG 3  This designation denotes acceptable credit quality. Adequate protection is afforded by the satisfactory short-term credit strength of the liquidity provider and structural and legal protections.


A-2


SG  This designation denotes speculative-grade credit quality. Demand features rated in this category may be supported by a liquidity provider that does not have a sufficiently strong short-term rating or may lack the structural or legal protections.

Description of S&P's Issue Credit Ratings

An S&P issue credit rating is a forward-looking opinion about the creditworthiness of an obligor with respect to a specific financial obligation, a specific class of financial obligations, or a specific financial program (including ratings on medium-term note programs and commercial paper programs). It takes into consideration the creditworthiness of guarantors, insurers, or other forms of credit enhancement on the obligation and takes into account the currency in which the obligation is denominated. The opinion reflects S&P's view of the obligor's capacity and willingness to meet its financial commitments as they come due, and this opinion may assess terms, such as collateral security and subordination, which could affect ultimate payment in the event of default.

Issue credit ratings can be either long-term or short-term. Short-term issue credit ratings are generally assigned to those obligations considered short-term in the relevant market, typically with an original maturity of no more than 365 days. Short-term issue credit ratings are also used to indicate the creditworthiness of an obligor with respect to put features on long-term obligations. S&P would typically assign a long-term issue credit rating to an obligation with an original maturity of greater than 365 days. However, the ratings S&P assigns to certain instruments may diverge from these guidelines based on market practices. Medium-term notes are assigned long-term ratings.

Issue credit ratings are based, in varying degrees, on S&P's analysis of the following considerations:

•  The likelihood of payment—the capacity and willingness of the obligor to meet its financial commitments on an obligation in accordance with the terms of the obligation;

•   The nature and provisions of the financial obligation, and the promise S&P imputes; and

•  The protection afforded by, and relative position of, the financial obligation in the event of a bankruptcy, reorganization, or other arrangement under the laws of bankruptcy and other laws affecting creditors' rights.

An issue rating is an assessment of default risk but may incorporate an assessment of relative seniority or ultimate recovery in the event of default. Junior obligations are typically rated lower than senior obligations, to reflect lower priority in bankruptcy, as noted above. (Such differentiation may apply when an entity has both senior and subordinated obligations, secured and unsecured obligations, or operating company and holding company obligations.)

NR indicates that a rating has not been assigned or is no longer assigned.

Description of S&P's Long-Term Issue Credit Ratings*

AAA  An obligation rated 'AAA' has the highest rating assigned by S&P. The obligor's capacity to meet its financial commitments on the obligation is extremely strong.

AA  An obligation rated 'AA' differs from the highest-rated obligations only to a small degree. The obligor's capacity to meet its financial commitments on the obligation is very strong.

A  An obligation rated 'A' is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher-rated categories. However, the obligor's capacity to meet its financial commitments on the obligation is still strong.

BBB  An obligation rated 'BBB' exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to weaken the obligor's capacity to meet its financial commitments on the obligation.


A-3


BB; B; CCC;   Obligations rated 'BB', 'B', 'CCC', 'CC', and 'C' are regarded as having significant speculative
CC; and C  characteristics. 'BB' indicates the least degree of speculation and 'C' the highest. While such obligations will likely have some quality and protective characteristics, these may be outweighed by large uncertainties or major exposure to adverse conditions.

BB  An obligation rated 'BB' is less vulnerable to nonpayment than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions that could lead to the obligor's inadequate capacity to meet its financial commitments on the obligation.

B  An obligation rated 'B' is more vulnerable to nonpayment than obligations rated 'BB', but the obligor currently has the capacity to meet its financial commitments on the obligation. Adverse business, financial, or economic conditions will likely impair the obligor's capacity or willingness to meet its financial commitments on the obligation.

CCC  An obligation rated 'CCC' is currently vulnerable to nonpayment and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitments on the obligation. In the event of adverse business, financial, or economic conditions, the obligor is not likely to have the capacity to meet its financial commitments on the obligation.

CC  An obligation rated 'CC' is currently highly vulnerable to nonpayment. The 'CC' rating is used when a default has not yet occurred but S&P expects default to be a virtual certainty, regardless of the anticipated time to default.

C  An obligation rated 'C' is currently highly vulnerable to nonpayment, and the obligation is expected to have lower relative seniority or lower ultimate recovery compared with obligations that are rated higher.

D  An obligation rated 'D' is in default or in breach of an imputed promise. For non-hybrid capital instruments, the 'D' rating category is used when payments on an obligation are not made on the date due, unless S&P believes that such payments will be made within the next five business days in the absence of a stated grace period or within the earlier of the stated grace period or the next 30 calendar days. The 'D' rating also will be used upon the filing of a bankruptcy petition or the taking of similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. A rating on an obligation is lowered to 'D' if it is subject to a distressed debt restructuring.

*Ratings from 'AA' to 'CCC' may be modified by the addition of a plus (+) or minus (-) sign to show relative standing within the rating categories.

Description of S&P's Short-Term Issue Credit Ratings

A-1  A short-term obligation rated 'A-1' is rated in the highest category by S&P. The obligor's capacity to meet its financial commitments on the obligation is strong. Within this category, certain obligations are designated with a plus sign (+). This indicates that the obligor's capacity to meet its financial commitments on these obligations is extremely strong.

A-2  A short-term obligation rated 'A-2' is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher rating categories. However, the obligor's capacity to meet its financial commitments on the obligation is satisfactory.

A-3  A short-term obligation rated 'A-3' exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to weaken an obligor's capacity to meet its financial commitments on the obligation.


A-4


B  A short-term obligation rated 'B' is regarded as vulnerable and has significant speculative characteristics. The obligor currently has the capacity to meet its financial commitments; however, it faces major ongoing uncertainties that could lead to the obligor's inadequate capacity to meet its financial commitments.

C  A short-term obligation rated 'C' is currently vulnerable to nonpayment and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitments on the obligation.

D  A short-term obligation rated 'D' is in default or in breach of an imputed promise. For non-hybrid capital instruments, the 'D' rating category is used when payments on an obligation are not made on the date due, unless S&P believes that such payments will be made within any stated grace period. However, any stated grace period longer than five business days will be treated as five business days. The 'D' rating also will be used upon the filing of a bankruptcy petition or the taking of a similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. A rating on an obligation is lowered to 'D' if it is subject to a distressed debt restructuring.

Description of S&P's Municipal Short-Term Note Ratings

An S&P U.S. municipal note rating reflects S&P's opinion about the liquidity factors and market access risks unique to the notes. Notes due in three years or less will likely receive a note rating. Notes with an original maturity of more than three years will most likely receive a long-term debt rating. In determining which type of rating, if any, to assign, S&P's analysis will review the following considerations:

•  Amortization schedule—the larger the final maturity relative to other maturities, the more likely it will be treated as a note; and

•  Source of payment—the more dependent the issue is on the market for its refinancing, the more likely it will be treated as a note.

S&P's municipal short-term note ratings are as follows:

SP-1  Strong capacity to pay principal and interest. An issue determined to possess a very strong capacity to pay debt service is given a plus (+) designation.

SP-2  Satisfactory capacity to pay principal and interest, with some vulnerability to adverse financial and economic changes over the term of the notes.

SP-3  Speculative capacity to pay principal and interest.

D  'D' is assigned upon failure to pay the note when due, completion of a distressed debt restructuring, or the filing of a bankruptcy petition or the taking of similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions.

Description of Fitch's Credit Ratings

Fitch's credit ratings relating to issuers are forward looking opinions on the relative ability of an entity or obligation to meet financial commitments. Credit ratings relating to securities and obligations of an issuer can include a recovery expectation. Credit ratings are used as indications of the likelihood of repayment in accordance with the terms of the issuance.

Fitch's credit rating scale for issuers and issues is expressed using the categories 'AAA' to 'BBB' (investment grade) and 'BB' to 'D' (speculative grade) with an additional +/- for AA through CCC levels indicating relative differences of probability of default or recovery for issues. The terms "investment grade" and "speculative grade" are market conventions and do not imply any recommendation or endorsement of a specific security for


A-5


investment purposes. Investment grade categories indicate relatively low to moderate credit risk, while ratings in the speculative grade categories signal either a higher level of credit risk or that a default has already occurred.

Fitch may also disclose issues relating to a rated issuer that are not and have not been rated. Such issues are also denoted as 'NR' on its webpage.

Fitch's credit ratings do not directly address any risk other than credit risk. Credit ratings do not deal with the risk of market value loss due to changes in interest rates, liquidity and/or other market considerations. However, market risk may be considered to the extent that it influences the ability of an issuer to pay or refinance a financial commitment.

Ratings nonetheless do not reflect market risk to the extent that they influence the size or other conditionality of the obligation to pay upon a commitment (for example, in the case of payments linked to performance of an index).

Credit ratings are indications of the likelihood of repayment in accordance with the terms of the issuance. In limited cases, Fitch may include additional considerations (i.e. rate to a higher or lower standard than that implied in the obligation's documentation).

Description of Fitch's Long-Term Corporate Finance Obligations Ratings

AAA  Highest credit quality. 'AAA' ratings denote the lowest expectation of credit risk. They are assigned only in cases of exceptionally strong capacity for payment of financial commitments. This capacity is highly unlikely to be adversely affected by foreseeable events.

AA  Very high credit quality. 'AA' ratings denote expectations of very low credit risk. They indicate very strong capacity for payment of financial commitments. This capacity is not significantly vulnerable to foreseeable events.

A  High credit quality. 'A' ratings denote expectations of low credit risk. The capacity for payment of financial commitments is considered strong. This capacity may, nevertheless, be more vulnerable to adverse business or economic conditions than is the case for higher ratings.

BBB  Good credit quality. 'BBB' ratings indicate that expectations of credit risk are currently low. The capacity for payment of financial commitments is considered adequate, but adverse business or economic conditions are more likely to impair this capacity.

BB  Speculative. 'BB' ratings indicate an elevated vulnerability to credit risk, particularly in the event of adverse changes in business or economic conditions over time; however, business or financial alternatives may be available to allow financial commitments to be met.

B  Highly speculative. 'B' ratings indicate that material credit risk is present.

CCC  Substantial credit risk. 'CCC' ratings indicate that substantial credit risk is present.

CC  Very high levels of credit risk. 'CC' ratings indicate very high levels of credit risk.

C  Exceptionally high levels of credit risk. 'C' ratings indicate exceptionally high levels of credit risk.

Ratings in the categories of 'CCC', 'CC' and 'C' can also relate to obligations or issuers that are in default. In this case, the rating does not opine on default risk but reflects the recovery expectation only.

Defaulted obligations typically are not assigned 'RD' or 'D' ratings, but are instead rated in the 'CCC' to 'C' rating categories, depending on their recovery prospects and other relevant characteristics. This approach better aligns obligations that have comparable overall expected loss but varying vulnerability to default and loss.


A-6


Description of Fitch's Short-Term Ratings

A short-term issuer or obligation rating is based in all cases on the short-term vulnerability to default of the rated entity and relates to the capacity to meet financial obligations in accordance with the documentation governing the relevant obligation. Short-term deposit ratings may be adjusted for loss severity. Short-Term Ratings are assigned to obligations whose initial maturity is viewed as "short term" based on market convention (a long-term rating can also be used to rate an issue with short maturity). Typically, this means up to 13 months for corporate, sovereign, and structured obligations and up to 36 months for obligations in U.S. public finance markets.

Fitch's short-term ratings are as follows:

F1  Highest short-term credit quality. Indicates the strongest intrinsic capacity for timely payment of financial commitments; may have an added "+" to denote any exceptionally strong credit feature.

F2  Good short-term credit quality. Good intrinsic capacity for timely payment of financial commitments.

F3  Fair short-term credit quality. The intrinsic capacity for timely payment of financial commitments is adequate.

B  Speculative short-term credit quality. Minimal capacity for timely payment of financial commitments, plus heightened vulnerability to near term adverse changes in financial and economic conditions.

C  High short-term default risk. Default is a real possibility.

RD  Restricted default. Indicates an entity that has defaulted on one or more of its financial commitments, although it continues to meet other financial obligations. Typically applicable to entity ratings only.

D  Default. Indicates a broad-based default event for an entity, or the default of a short-term obligation.


A-7


 

PART C: OTHER INFORMATION

 

Item 28. Exhibits:

 

(a)            Amended and Restated Agreement and Declaration of Trust, dated September 14, 2016

 

(b)            Amended and Restated By-Laws, dated September 13, 2011

 

(c)            Not Applicable.

 

(d)(1)       Investment Advisory Agreement, dated March 17, 2003, between the Trust and SEI Investments Management Corporation (“SIMC”)

 

(d)(2)       Amended and Restated Schedules A and B, as last revised January 1, 2010, to the Investment Advisory Agreement, dated March 17, 2003, between the Trust and SIMC

 

(d)(3)        Investment Sub-Advisory Agreement, dated March  31, 2016, between SIMC and BlackRock Advisors, LLC with respect to the Treasury II, Government and Government II Funds

 

(d)(4)       Investment Sub-Advisory Agreement, dated September 15, 2017, between SIMC and MetLife Investment Management, LLC (f/k/a Logan Circle Partners, L.P.) with respect to the Ultra Short Duration Bond Fund

 

(d)(5)       Amendment, dated September 11, 2019, to the Investment Sub-Advisory Agreement, dated September 15, 2017, between SIMC and MetLife Investment Management, LLC with respect to the Ultra Short Duration Bond Fund

 

(d)(6)       Amended Schedule B, as last revised April 15, 2024, to the Investment Sub-Advisory Agreement, dated September 15, 2017, between SIMC and MetLife Investment Management, LLC with respect to the Ultra Short Duration Bond Fund

 

(d)(7)        Investment Sub-Advisory Agreement, dated November 1, 2004, between SIMC and Wellington Management Company, LLP with respect to the Short-Duration Government, GNMA and Ultra Short Duration Bond Funds

 

(d)(8)       Amended Schedule B, as last revised April 15, 2024, to the Investment Sub-Advisory Agreement, dated November 1, 2004, between SIMC and Wellington Management Company, LLP with respect to the Short-Duration Government, GNMA and Ultra Short Duration Bond Funds

 

(e)(1)       Amended and Restated Distribution Agreement, dated September 16, 2002, between the Trust and SEI Investments Distribution Co. (“SIDCo.”)

 

(e)(2)       Amended Schedule A, dated December 5, 2005, to the Amended and Restated Distribution Agreement, dated September 16, 2002, between the Trust and SIDCo.

 

(f)            Not Applicable.

 

(g)(1)       Amended and Restated Multi-Trust Custody Agreement, dated June 14, 2013, between the Trust and U.S. Bank National Association

 

(g)(2)       Thirteenth Amendment, dated December 11, 2017, to the Amended and Restated Multi-Trust Custody Agreement, dated June 14, 2013, between the Registrant and U.S. Bank National Association

 

(g)(3)       Amended Exhibit B, as last revised May 1, 2016, to the Amended and Restated Multi-Trust Custody Agreement, dated June 14, 2013, between the Registrant and U.S. Bank National Association

 

(h)(1)       Amended and Restated Administration and Transfer Agency Agreement, dated December 10, 2003, between the Trust and SEI Investments Global Funds Services (f/k/a SEI Investments Fund Management) (“SIGFS”)

 

1

 

 

(h)(2)       Amended Schedule D, as last revised January 1, 2017, to the Amended and Restated Administration and Transfer Agency Agreement, dated December 10, 2003, between the Registrant and SIGFS

 

(h)(3)       Amended and Restated Shareholder Service Plan and Agreement, dated May 31, 2017, between the Trust and SIDCo., with respect to the Class F Shares of the Government II and Treasury II Funds

 

(h)(4)       Amended and Restated Shareholder Service Plan and Agreement, dated May 31, 2017, between the Trust and SIDCo., with respect to the Class F Shares of the Ultra Short Duration Bond, Short-Duration Government and GNMA Funds

 

(h)(5)       Shareholder Service Plan and Agreement, dated May 15, 2025, between the Trust and SIDCo., with respect to the Admin Class Shares (f/k/a Class CAA Shares) of the Government Fund (filed herewith)

 

(h)(6)       Shareholder Service Plan and Agreement, dated, May 15, 2025, between the Trust and SIDCo., with respect to the Wealth Class Shares (f/k/a Sweep Class Shares) of the Government Fund (filed herewith)

 

(h)(7)       Amended and Restated Expense Limitation Agreement, dated June 23, 2010, between the Trust and SIGFS, on behalf of the Government II and Treasury II Funds

 

(h)(8)       Amended Schedule A, dated May 31, 2018, to the Amended and Restated Expense Limitation Agreement, dated June 23, 2010, between the Trust and SIGFS

 

(i)            Opinion and Consent of Counsel (filed herewith)

 

(j)            Consent of Independent Registered Public Accounting Firm (filed herewith)

 

(k)            Not Applicable.

 

(l)            Not Applicable.

 

(m)            Not Applicable.

 

(n)            Amended and Restated Rule 18f-3 Multiple Class Plan, dated May 2025 (filed herewith)

 

(o)            Not Applicable.

 

(p)(1)       The Code of Ethics for SEI Daily Income Trust, as last revised March 2022

 

(p)(2)       The Code of Ethics for SIDCo., dated February 29, 2024

 

(p)(3)       The Code of Ethics for SIGFS, dated September 2023

 

(p)(4)       The Code of Ethics for SIMC, dated April 18, 2024 (filed herewith)

 

(p)(5)       The Code of Ethics for BlackRock Advisors, LLC, dated December 2021

 

(p)(6)       The Code of Ethics for MetLife, Inc., dated January 2025 (filed herewith)

 

(p)(7)       The Code of Ethics for Wellington Management Company, LLP, dated December 1, 2023 (filed herewith)

 

(q)(1)       Power of Attorney, dated September 13, 2016, for Robert A. Nesher, William M. Doran, Nina Lesavoy, James M. Williams and Susan C. Cote

 

(q)(2)        Power of Attorney, dated March 28, 2018, for James B. Taylor

 

(q)(3)       Power of Attorney, dated December 4, 2019, for Christine Reynolds

 

(q)(4)       Power of Attorney, dated September 23, 2021, for Thomas Melendez

 

2

 

 

Item 29. Persons Controlled by or under Common Control with Registrant:

 

See the Prospectuses and Statement of Additional Information filed herewith regarding the Trust’s control relationships. SIMC and SIDCo. are wholly-owned subsidiaries of SEI Investments Company (“SEI”), and SIMC is the owner of all beneficial interest in SIGFS. SEI is a leading global provider of outsourced asset management, investment processing and investment operations solutions and, in addition to SIMC, SIDCo. and SIGFS, controls companies engaged in providing various financial and record keeping services, primarily to bank trust departments, pension plan sponsors and investment managers.

 

Item 30. Indemnification:

 

Article VIII of the Agreement and Declaration of Trust filed as Exhibit (a) to the Registration Statement is incorporated by reference. Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended (the “1933 Act”) may be permitted to trustees, directors, officers and controlling persons of the Trust by the Trust pursuant to the Declaration of Trust or otherwise, the Trust is aware that, in the opinion of the SEC, such indemnification is against public policy as expressed in the 1933 Act and, therefore, is unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Trust of expenses incurred or paid by trustees, directors, officers or controlling persons of the Trust in connection with the successful defense of any act, suit or proceeding) is asserted by such trustees, directors, officers or controlling persons in connection with the shares being registered, the Trust will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the 1933 Act and will be governed by the final adjudication of such issues.

 

Item 31. Business and other Connections of Investment Advisers:

 

The following tables describe other business, profession, vocation or employment of a substantial nature in which each director, officer or partner of the Adviser or Sub-Advisers is or has been, at any time during the last two fiscal years, engaged for his or her own account or in the capacity of director, officer, employee, partner or trustee. The Adviser’s or Sub-Adviser’s table was provided to the Trust by the Adviser or Sub-Adviser for inclusion in this Registration Statement.

 

SEI Investments Management Corporation

 

SEI Investments Management Corporation (“SIMC”) is the Adviser for the Trust’s Funds. The principal business address of SIMC is One Freedom Valley Drive, Oaks, Pennsylvania 19456. SIMC is a registered investment adviser under the Investment Advisers Act of 1940, as amended (the “Advisers Act”).

 

Unless otherwise noted, the address of all the companies listed below is One Freedom Valley Drive, Oaks, Pennsylvania 19456.

 

Name and Position

With Investment Adviser

Name of Other Company Connection With Other Company
Michael Peterson Director, Senior Vice President & Assistant Secretary SEI Investments Company Executive Vice President, General Counsel, Chief Compliance Officer, Secretary
  SEI Trust Company Director, Vice President
  SEI Funds, Inc. Vice President, Secretary
  SEI Investments, Inc. Vice President, Secretary
  SEI Global Investments Corp. Director, Vice President, Secretary
  SEI Advanced Capital Management, Inc. Director, Vice President, Secretary
  SEI Primus Holding Corp. Vice President, Secretary

 

3

 

 

  SEI Global Services, Inc. Director, Senior Vice President, Secretary
  SIMC Holdings, LLC Manager
  SEI Investment Strategies, LLC Director, Senior Vice President, Secretary
  LSV Asset Management Management Committee
  SEI Global Capital Investments, Inc. Vice President, Secretary
  SEI Investments (Asia), Limited Director
  SEI Global Holdings (Cayman) Inc. Director, Vice President, Secretary
  SEI Investments (South Africa) (PTY) Limited Director
  SEI Investments Canada Company Director, Secretary
  SEI Custodial Operations Company, LLC Manager
  SEI Institutional Transfer Agent, Inc. Director, Senior Vice President
  SIMC Subsidiary, LLC Manager
  SEI Ventures, Inc. Vice President, Secretary
  SEI Investments Developments, Inc. Vice President, Secretary
  SEI Investments Global Funds Services Vice President, Assistant Secretary
  SEI Keystone Capital Holdings, LLC Senior Vice President
  SEI Archway Finance & Operations LLC Manager, Senior Vice President
  SEI Archway Technology Partners LLC Manager, Senior Vice President
  SEI Novus, LLC Senior Vice President, Secretary
  SEI Acquisition Sub, LLC Senior Vice President, Secretary
  SEI Radar Holding Company LLC Senior Vice President, Secretary
SEI Novus Switzerland Director
SEI Novus UK Ltd. Director
SEI Access Platform, LLC Senior Vice President and Secretary
  SEI LifeYield, LLC Vice President and Secretary
James Smigiel Vice President SEI Investment Strategies, LLC Vice President
LSV Asset Management Management Committee

 

4

 

 

Mark Warner

Vice President & Treasurer

SEI Investments Company Vice President, Controller & Chief Accounting Officer
SEI Funds Inc. Director, Vice President, Treasurer
SEI Investments, Inc. Director, Vice President, Treasurer
SEI Global Investments Corp. Director, Vice President & Treasurer
SEI Advanced Capital Management, Inc. Director, Vice President, Treasurer
SEI Primus Holding Corp. Director, Vice President, Treasurer
SEI Investment Strategies, LLC Vice President, Treasurer
SEI Global Capital Investments, Inc. Director, Vice President, Treasurer
SEI Investments Global (Cayman), Limited Vice President, Treasurer
SEI Global Holdings (Cayman) Inc. Vice President, Assistant Secretary & Treasurer
SEI Investments Canada Company Vice President
SEI Investments Developments, Inc. Director, Vice President, Treasurer
SEI Keystone Capital Holdings, LLC Vice President
SEI Archway Finance & Operations LLC Vice President
SEI Archway Technology Partners LLC Vice President
SEI Novus, LLC Treasurer
SEI Acquisition Sub, LLC Vice President, Treasurer
SEI Radar Holding Company LLC Treasurer
SEI Trust Company Vice President, Treasurer
SEI Private Trust Company Vice President, Treasurer
SEI Custodial Operations Company, LLC Vice President, Treasurer
SEI Global Services Inc. Vice President
SEI Access Platform, LLC Treasurer
SEI LifeYield, LLC Treasurer

Timothy D. Barto

General Counsel, Vice President & Secretary

SEI Investments Company Vice President-Legal & Assistant Secretary
  SEI Funds, Inc. Vice President
  SEI Global Services, Inc. Vice President
  SIMC Holdings, LLC Manager
  SEI Investment Strategies, LLC General Counsel, Vice President, Secretary
  SIMC Subsidiary, LLC Manager

David McCann

Vice President & Assistant Secretary

SEI Investment Strategies, LLC Vice President, Assistant Secretary

 

5

 

 

Paul F. Klauder

Director & Senior Vice President

SEI Investments Company Executive Vice President
SEI Investments Distribution Co. Director, President and Chief Executive Officer
SEI Global Services, Inc. Vice President
SEI Trust Company Director, Vice President
SEI Investments Strategies, LLC Director
SEI Investments (Asia), Limited Director
SEI Global Holdings (Cayman) Inc. Director, Vice President
SEI Investments (South Africa) (PTY) Limited Director
SEI Investments Canada Company Director, Vice President
SEI Novus, LLC Chief Executive Officer
SEI Acquisition Sub, LLC Chief Executive Officer
SEI Novus Switzerland Director
SEI Novus UK Ltd. Director
SEI Access Platform, LLC Senior Vice President

Raquell Baker

Vice President

SEI Global Services, Inc. Vice President
  SEI Investments Canada Company Vice President
  SEI Keystone Capital Holdings, LLC Vice President
  SEI Archway Finance & Operations LLC Vice President
  SEI Archway Technology Partners, LLC Vice President

Stephen G. MacRae

Vice President

SEI Global Services, Inc. Vice President
  SEI Investment Strategies, LLC President

Radoslav K. Koitchev

Vice President

SEI Investment Strategies, LLC Vice President

Michael Farrell

Vice President

SEI Global Services, Inc. Vice President

Kevin Matthews

Vice President

SEI Global Services, Inc. Vice President
SEI Investment Strategies, LLC Director
SEI Novus, LLC Vice President
SEI Acquisition Sub, LLC Vice President
SEI Investments Canada Company Vice President
Patrick DiLello Vice President & FATCA Responsible Officer SEI Investments Company Vice President, FATCA Responsible Officer
  SEI Trust Company Vice President, FATCA Responsible Officer
  SEI Funds, Inc. Vice President, FATCA Responsible Officer
  SEI Investments, Inc. Vice President, FATCA Responsible Officer
  SEI Global Investments Corp. Vice President, FATCA Responsible Officer
  SEI Advanced Capital Management, Inc. Vice President, FATCA Responsible Officer
  SEI Primus Holding Corp. Vice President, FATCA Responsible Officer
  SEI Global Services, Inc. Vice President, FATCA Responsible Officer

 

6

 

 

  SEI Private Trust Company Vice President, FATCA Responsible Officer
  SIMC Holdings, LLC Manager, Vice President, FATCA Responsible Officer
  SEI Investment Strategies, LLC Vice President, FATCA Responsible Officer
  LSV Asset Management Vice President, FATCA Responsible Officer
  SEI Global Capital Investments, Inc. Vice President, FATCA Responsible Officer
  SEI Investments (Europe) Ltd. FATCA Responsible Officer
  SEI Global Nominee Ltd. FATCA Responsible Officer
  SEI Trustees Limited FATCA Responsible Officer
  SEI European Services Limited FATCA Responsible Officer
  SEI Global Holdings (Cayman) Inc. Vice President, FATCA Responsible Officer
  SEI Investments (South Africa) (PTY) Limited Vice President, FATCA Responsible Officer
  SEI Investments Global, Limited Vice President, FATCA Responsible Officer
  SEI Investments Global Fund Services, Limited Vice President, FATCA Responsible Officer
  SEI Investments Depositary and Custodial Services (Ireland) Limited Vice President, FATCA Responsible Officer
  SEI Investments Canada Company Vice President, FATCA Responsible Officer
  SEI Custodial Operations Company, LLC Vice President, FATCA Responsible Officer
  SEI Institutional Transfer Agent, Inc. Vice President, FATCA Responsible Officer
  SIMC Subsidiary, LLC Manager, Vice President, FATCA Responsible Officer
  SEI Ventures, Inc. Vice President, FATCA Responsible Officer
  SEI Investments Developments, Inc. Vice President, FATCA Responsible Officer
  SEI Investments Global Funds Services Vice President, FATCA Responsible Officer
  SEI Investments-Guernsey Limited Vice President, FATCA Responsible Officer
  SEI Keystone Capital Holdings, LLC Vice President, FATCA Responsible Officer
  SEI Archway Finance & Operations LLC Vice President, FATCA Responsible Officer
  SEI Archway Technology Partners LLC Vice President, FATCA Responsible Officer
  SEI Novus, LLC Vice President, FATCA Responsible Officer
  SEI Acquisition Sub, LLC Vice President, FATCA Responsible Officer
  SEI Radar Holding Company LLC Vice President, FATCA Responsible Officer
  SEI Novus UK Ltd. FATCA Responsible Officer
  SEI Access Platform, LLC Vice President, FATCA Responsible Officer
  SEI LifeYield, LLC Vice President, FATCA Responsible Officer
Sean Simko Vice President SEI Global Services, Inc. Vice President

Aaron Von Alst

Vice President

SEI Global Services, Inc. Vice President

 

7

 

 

Jennifer Campisi

Chief Compliance Officer

SEI Investments Distribution Co. Chief Compliance Officer, Assistant Secretary and Anti-Money Laundering Officer

Erich Holland

Vice President

SEI Global Services, Inc. Vice President

Karen Sullivan

Vice President

SEI Global Services, Inc. Vice President

Katherine Mason

Vice President and Assistant Secretary

SEI Investment Strategies, LLC Vice President, Assistant Secretary

Michael Cagnina

Vice President

SEI Novus, LLC Vice President

Brian Vargo

Vice President & Assistant Secretary

SEI Investment Strategies, LLC Vice President, Assistant Secretary

Jay Cipriano

Director and Senior Vice President

SEI Global Services, Inc. Vice President
SEI Investment Strategies, LLC Director, Senior Vice President
SEI Trust Company Vice President
SEI Investments Company Executive Vice President

J. Womack

President

SEI Investment Strategies, LLC Vice President
SEI Global Services, Inc. Vice President
SEI Private Trust Company Director, Vice President
  SEI LifeYield, LLC Vice President

Christopher Pettia

Vice President

SEI Investment Strategies, LLC Vice President

Philip Kizun

Chief Privacy Officer

 

SEI Global Services, Inc. Chief Privacy Officer
SEI Private Trust Company Chief Privacy Officer
SEI Investments Global Funds Services Chief Privacy Officer
SEI Radar Holding Company LLC Chief Privacy Officer

Tom Hunter

Vice President

 

SEI Investment Strategies, LLC Vice President

Farooq Omer

Vice President

SEI Global Services, Inc. Vice President

Patrick Carlevato

Vice President

SEI Global Services, Inc. Vice President
SEI Novus, LLC Vice President

 

8

 

 

BlackRock Advisors, LLC

 

BlackRock Advisors, LLC (“BAL”) is a Sub-Adviser for the Trust’s Government, Government II, and Treasury II Funds. The principal business address of BAL is 100 Bellevue Parkway, Wilmington, Delaware 19809. BAL is a registered investment adviser under the Advisers Act.

 

During the last two fiscal years, no director, officer or partner of BAL has engaged in any other business, profession, vocation or employment of a substantial nature in the capacity of director, officer, employee, partner or trustee.

 

MetLife Investment Management, LLC

 

MetLife Investment Management, LLC ("MIM") serves as a Sub-Adviser for the Trust's Ultra Short Duration Bond Fund. The principal address of MIM is One MetLife Way, Whippany, NJ 07981. MIM is an investment adviser registered under the Investment Advisers Act of 1940, as amended.

 

Name and Position with Investment
Adviser
Name and Principal Business
Address of Other Company
Connection with Other Company

Joseph Pollaro

Chief Operating Officer

MetLife Investments Securities, LLC

One MetLife Way

Whippany, NJ 0798

President and Chief Executive Officer

MetLife Investment Management Limited

Level 34

One Canada Square

London E14 5AA

United Kingdom

Chief Operating Officer

Director

MetLife Investment Management Japan, Ltd..

Tokyo Garden Terrace Kioicho Kioi Tower 25F

1-3, Kioicho, Chiyoda-ku, Tokyo

Japan

Chief Operating Officer

Director

MetLife Investments Asia Limited

9th Floor, One Taikoo Place

979 King’s Road, Quarry Bay

Hong Kong S.A.R.

Chief Operating Officer

Director

 

MetLife Investment Management Holdings (Ireland) Limited

20 on Hatch

Lower Hatch Street

Dublin 2, Ireland

Director

MetLife Investments Management Holdings, LLC

One MetLife Way

Whippany, NJ 07981

Board of Managers

Executive Vice President

MetLife Investors Group, LLC

One MetLife Way

Whippany, NJ 07981

Board of Managers

Executive Vice President

 

9

 

 

 

MIM I, LLC

One MetLife Way

Whippany, NJ 07981

Chief Operating Officer

MetLife Services and Solutions, LLC

One MetLife Way

Whippany, NJ 07981

Executive Vice President

MetLife Group, Inc.

200 Park Avenue

New York, NY 10166

Executive Vice President

 

Metropolitan Life Insurance Company

200 Park Avenue

New York, NY 10166

Executive Vice President

MetLife Investment Management Europe Limited

20 on Hatch

Lower Hatch Street

Dublin 2, Ireland

Director

Affirmative Investment Management Partners Limited

55 Baker Street

London W1U 7EU United Kingdom

Director
Affirmative Investment Management Australia Pty Ltd Director

Affirmative Investment Management US Limited

45 South Main Street, P.O. Box 3550 Concord, NH 03302-3550

Chairman, President, & Director

Michael Yick

Treasurer and Chief Financial Officer

MetLife Investments Securities, LLC

One MetLife Way

Whippany, NJ 0798

Treasurer and Chief Financial Officer

MetLife Investments Management Holdings LLC

One MetLife Way

Whippany, NJ 07981

Treasurer

MIM I, LLC

One MetLife Way

Whippany, NJ 07981

Treasurer and Chief Financial Officer

MetLife Investors Distribution Company

One MetLife Way

Whippany, NJ 07981

Treasurer

Affirmative Investment Management US Limited

45 South Main Street, P.O. Box 3550 Concord, NH 03302-3550

Treasurer

 

10

 

 

Wellington Management Company LLP

 

Wellington Management Company LLP (“Wellington Management”) serves as a Sub-Adviser for the Trust’s Ultra Short Duration Bond, Short-Duration Government and GNMA Funds. The principal business address of Wellington Management is 280 Congress Street, Boston, Massachusetts 02210. Wellington Management is an investment adviser registered under the Investment Advisers Act of 1940, as amended.

 

During the last two fiscal years, no partner of Wellington Management has engaged in any other business, profession, vocation or employment of a substantial nature other than that of the business of investment management.

 

Item 32. Principal Underwriters:

 

(a)         Furnish the name of each investment company (other than the Trust) for which each principal underwriter currently distributing the securities of the Trust also acts as a principal underwriter, distributor or investment adviser.

 

The Trust’s distributor, SIDCo., acts as distributor for:

 

SEI Tax Exempt Trust December 3, 1982
SEI Institutional Managed Trust January 22, 1987
SEI Institutional International Trust August 30, 1988
The Advisors’ Inner Circle Fund November 14, 1991
The Advisors’ Inner Circle Fund II January 28, 1993
Bishop Street Funds January 27, 1995
SEI Asset Allocation Trust April 1, 1996
SEI Institutional Investments Trust June 14, 1996
City National Rochdale Funds (f/k/a CNI Charter Funds) April 1, 1999
Causeway Capital Management Trust September 20, 2001
SEI Offshore Opportunity Fund II, Ltd. September 1, 2005
ProShares Trust November 14, 2005

Community Capital Trust (f/k/a Community Reinvestment Act

Qualified Investment Fund)

January 8, 2007
SEI Offshore Advanced Strategy Series SPC July 31, 2007
SEI Structured Credit Fund, LP July 31, 2007
Global X Funds October 24, 2008
ProShares Trust II November 17, 2008
SEI Special Situations Fund, Ltd. July 1, 2009
Exchange Traded Concepts Trust (f/k/a FaithShares Trust) August 7, 2009
Schwab Strategic Trust October 12, 2009
RiverPark Funds Trust September 8, 2010
Adviser Managed Trust December 10, 2010
SEI Core Property Fund, LP January 1, 2011
New Covenant Funds March 23, 2012
KraneShares Trust December 18, 2012
The Advisors’ Inner Circle Fund III February 12, 2014
SEI Catholic Values Trust March 24, 2015
SEI Hedge Fund SPC June 26, 2015
SEI Energy Debt Fund, LP June 30, 2015
Gallery Trust January 8, 2016

 

11

 

 

City National Rochdale Select Strategies Fund March 1, 2017
City National Rochdale Strategic Credit Fund May 16, 2018
Symmetry Panoramic Trust July 23, 2018
Frost Family of Funds May 31, 2019
SEI Vista Fund, Ltd. January 20, 2021
Wilshire Private Assets Fund March 22, 2021
Catholic Responsible Investments Funds November 17, 2021
SEI Exchange Traded Funds May 18, 2022
SEI Global Private Assets VI, L.P. July 29, 2022
Quaker Investment Trust June 8, 2023
SEI Alternative Income Fund September 1, 2023
Global X Venture Fund March 12, 2025

 

SIDCo. provides numerous financial services to investment managers, pension plan sponsors and bank trust departments. These services include portfolio evaluation, performance measurement and consulting services (“Funds Evaluation”) and automated execution, clearing and settlement of securities transactions (“MarketLink”).

 

(b) Furnish the information required by the following table with respect to each director, officer or partner of each principal underwriter named in the answer to Item 25 of Part B. Unless otherwise noted, the business address of each director or officer is One Freedom Valley Drive, Oaks, Pennsylvania 19456.

 

Name  

Position and Office

with Underwriter

  Positions and Offices
with Registrant
Paul F. Klauder   President, Chief Executive Officer & Director  
John C. Munch   General Counsel & Secretary  
William M. Doran   Director  
John Alshefski   Director  
Kevin Crowe   Director  
Jason McGhin   Vice President & Chief Operations Officer  
John P. Coary   Vice President, Chief Financial Officer & Treasurer  
Jennifer H. Campisi   Chief Compliance Officer, Assistant Secretary & Anti-Money Laundering Officer  
William M. Martin   Vice President  
Christopher Rowan   Vice President  
Judith A. Rager   Vice President  
Gary Michael Reese   Vice President  
Robert M. Silvestri   Vice President  

 

Item 33. Location of Accounts and Records:

 

All accounts, books and other documents required to be maintained by Section 31(a) of the Investment Company Act of 1940, as amended, and the Rules thereunder will be maintained at the offices of:

 

SEI Daily Income Trust

One Freedom Valley Drive

Oaks, Pennsylvania 19456

 

SEI Investments Management Corporation

One Freedom Valley Drive

Oaks, Pennsylvania 19456

 

12

 

 

SEI Investments Distribution Co.

One Freedom Valley Drive

Oaks, Pennsylvania 19456

 

U.S. Bank National Association

425 Walnut Street

Cincinnati, Ohio 45202

 

SEI Investments Global Funds Services

One Freedom Valley Drive

Oaks, Pennsylvania 19456

 

BlackRock Advisors, LLC

100 Bellevue Parkway

Wilmington, Delaware 19809

 

MetLife Investment Management, LLC

One MetLife Way

Whippany, New Jersey 07981

 

Wellington Management Company LLP

280 Congress Street

Boston, Massachusetts 02210

 

Item 34. Management Services:

 

None.

 

Item 35. Undertakings:

 

The Trust hereby undertakes that whenever shareholders meeting the requirements of Section 16(c) of the 1940 Act inform the Board of Trustees of their desire to communicate with shareholders of the Trust, the Trustees will inform such shareholders as to the approximate number of shareholders of record and the approximate costs of mailing or afford said shareholders access to a list of shareholders.

 

The Trust undertakes to call a meeting of shareholders for the purpose of voting upon the question of the removal of a Trustee(s) when requested in writing to do so by the holders of at least 10% of the Trust’s outstanding shares and in connection with each meeting to comply with the provisions of Section  16(c) of the 1940 Act relating to shareholder communications.

 

The Trust undertakes to furnish, upon request and without charge, to each person to whom a prospectus is delivered, a copy of the the Trust’s latest annual report to shareholders, when such annual report is issued containing information called for by Item 5A of Form N-1A.

 

13

 

 

NOTICE

 

A copy of the Agreement and Declaration of Trust of SEI Daily Income Trust (formerly known as SEI Cash + Plus Trust) is on file with the Secretary of State of the Commonwealth of Massachusetts and notice is hereby given that this Registration Statement has been executed on behalf of the Trust by an officer of the Trust as an officer and by its Trustees as trustees and not individually and the obligations of or arising out of this Registration Statement are not binding upon any of the Trustees, officers or shareholders individually but are binding only upon the assets and property of the Trust.

 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule  485(b)  under the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 96 to Registration Statement No. 002-77048 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oaks, Commonwealth of Pennsylvania on the 30th day of May, 2025.

 

  SEI DAILY INCOME TRUST
     
  By: /S/ ROBERT A. NESHER
    Robert A. Nesher
    Trustee, President & Chief Executive Officer

 

Pursuant to the requirements of the Securities Act of 1933, as amended, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date(s) indicated.

 

*   Trustee   May 30, 2025
William M. Doran    
         
*   Trustee   May 30, 2025
Nina Lesavoy    
         
*   Trustee   May 30, 2025
James M. Williams    
         
*   Trustee   May 30, 2025
Susan C. Cote    
           
*   Trustee   May 30, 2025
James B. Taylor    
           
*   Trustee   May 30, 2025
Christine Reynolds    
           
*   Trustee   May 30, 2025
Thomas Melendez    
           
/S/ ROBERT A. NESHER   Trustee, President & Chief Executive Officer   May 30, 2025
Robert A. Nesher    
           
/s/ GLENN KURDZIEL   Controller & Chief Financial Officer   May 30, 2025
Glenn Kurdziel    

 

*By: /S/ ROBERT A. NESHER 
  Robert A. Nesher 
  Attorney-in-Fact 

 

15

 

 

EXHIBIT INDEX

 

Exhibit Number   Description
EX-99.B(h)(5)   Shareholder Service Plan and Agreement, dated May 15, 2025, between the Trust and SIDCo., with respect to the Admin Class Shares (f/k/a Class CAA Shares) of the Government Fund
     
EX-99.B(h)(6)   Shareholder Service Plan and Agreement, dated, May 15, 2025, between the Trust and SIDCo., with respect to the Wealth Class Shares (f/k/a Sweep Class Shares) of the Government Fund
     
EX-99.B(i)   Opinion and Consent of Counsel
     
EX-99.B(j)   Consent of Independent Registered Public Accounting Firm
     
EX-99.B(n)   Amended and Restated Rule 18f-3 Multiple Class Plan, dated May 2025
     
EX-99.B(p)(4)   The Code of Ethics for SIMC, dated April 18, 2024
     
EX-99.B(p)(6)   The Code of Ethics for MetLife, Inc., dated January 2025
     
EX-99.B(p)(7)   The Code of Ethics for Wellington Management Company, LLP, dated December 1, 2023
     
EX-101.INS   XBRL Instance Document
     
EX-101.SCH   XBRL Taxonomy Extension Schema Document
     
EX-101.DEF   XBRL Taxonomy Extension Definition Linkbase
     
EX-101.LAB   XBRL Taxonomy Extension Labels Linkbase
     
EX-101.PRE   XBRL Taxonomy Extension Presentation Linkbase
     
EX-101.CAL   XBRL Taxonomy Extension Calculation Linkbase Document

 

 

 

ATTACHMENTS / EXHIBITS

EXHIBIT 99.B(H)(5)

EXHIBIT 99.B(H)(6)

EXHIBIT 99.B(I)

EXHIBIT 99.B(J)

EXHIBIT 99.B(N)

EXHIBIT 99.B(P)(4)

EXHIBIT 99.B(P)(6)

EXHIBIT 99.B(P)(7)

XBRL TAXONOMY EXTENSION SCHEMA

XBRL TAXONOMY EXTENSION DEFINITION LINKBASE

XBRL TAXONOMY EXTENSION LABEL LINKBASE

XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE

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