Form 497K NEUBERGER BERMAN INCOME

Neuberger Berman Strategic Income Fund

SUMMARY PROSPECTUS

Class A Shares (NSTAX), Class C Shares (NSTCX), Institutional Class Shares (NSTLX)

Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus, reports to shareholders, and other information about the Fund (including the Fund’s SAI) online at: for Class A shares, http://www.nb.com/fixedincomefunds/a; for Class C shares, http://www.nb.com/fixedincomefunds/c; or for Institutional Class shares, http://www.nb.com/fixedincomefunds/institutional. You can also get this information at no cost by calling 877-628-2583 (Class A and Class C) or 800-366-6264 (Institutional Class), or by sending an e-mail request to [email protected]. You can also get this information from your financial intermediary or any financial intermediary authorized to sell the Fund’s shares. The Fund’s prospectus and SAI, each dated February 28, 2019 (as each may be amended or supplemented), are incorporated herein by reference.

Beginning on January 1, 2021, as permitted by regulations adopted by the U.S. Securities and Exchange Commission, paper copies of the Fund’s annual and semi-annual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports. Instead, the reports will be made available on the Fund’s website www.nb.com/fundliterature, and you will be notified by mail each time a report is posted and provided with a website link to access the report. If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. You may elect to receive shareholder reports and other communications from the Fund electronically anytime by contacting your financial intermediary (such as a broker-dealer or bank) or, if you are a direct investor, by calling 800.877.9700 or by sending an e-mail request to [email protected]. Beginning on January 1, 2019, you may elect to receive all future reports in paper free of charge. If you invest through a financial intermediary, you can contact your financial intermediary to request that you continue to receive paper copies of your shareholder reports. If you invest directly with the Fund, you can call 800.877.9700 or send an email request to [email protected] to inform the Fund that you wish to continue receiving paper copies of your shareholder reports. Your election to receive reports in paper will apply to all funds held in your account if you invest through your financial intermediary or all funds held with the fund complex if you invest directly with the Fund.

GOAL

The Fund seeks high current income with a secondary objective of long-term capital appreciation.

Fees and Expenses

These tables describe the fees and expenses that you may pay if you buy, hold or sell shares of the Fund. Under the Fund’s policies, you may qualify for initial sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Neuberger Berman funds. Certain financial intermediaries have sales charges and/or policies and procedures regarding sales charge waivers applicable to their customers that differ from those described below. More information about these and other discounts is available from your financial intermediary, in “Sales Charge Reductions and Waivers” on page 169 in the Fund’s prospectus, and in Appendix A to the Fund’s prospectus. Although the Fund does not impose any sales charge on Institutional Class shares, you may pay a commission to your broker on your purchases and sales of those shares, which is not reflected in this table.

	Class A	Class C	Institutional Class
Shareholder Fees(fees paid directly from your investment)
Maximum initial sales charge on purchases (as a % of offering price)	4.25	None	None
Maximum contingent deferred sales charge (as a % of the lower of original purchase price or current market value)1	None	1.00	None
Annual Fund Operating Expenses(expenses that you pay each year as a % of the value of your investment)
Management fees	0.67	0.67	0.55
Distribution and/or shareholder service (12b-1) fees	0.25	1.00	None
Other expenses	0.09	0.07	0.07
Total annual operating expenses	1.01	1.74	0.62
Fee waiver and/or expense reimbursement	0.01	0.04	0.02
Total annual operating expenses after fee waiver and/or expense reimbursement2	1.00	1.70	0.60

1

For Class A shares, a contingent deferred sales charge (“CDSC”) of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. For Class C shares, the CDSC is eliminated one year after purchase.

2

Neuberger Berman Investment Advisers LLC (“Manager”) has contractually undertaken to waive and/or reimburse certain fees and expenses of Class A, Class C and Institutional Class so that the total annual operating expenses (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, dividend and interest expenses relating to short sales, and extraordinary expenses, if any) (“annual operating expenses”) of each class are limited to 0.99%, 1.69% and 0.59% of average net assets, respectively. Each of these undertakings lasts until 10/31/2022 and may not be terminated during its term without the consent of the Board of Trustees. The Fund has agreed that each of Class A, Class C and Institutional Class will repay the Manager for fees and expenses waived or reimbursed for the class provided that repayment does not cause annual operating expenses to exceed 0.99%, 1.69% and 0.59% of the class' average net assets, respectively. Any such repayment must be made within three years after the year in which the Manager incurred the expense.

Neuberger Berman Strategic Income Fund

February 28, 2019

Expense Example

The expense example can help you compare costs among mutual funds. The example assumes that you invested $10,000 for the periods shown, that you redeemed all of your shares at the end of those periods, that the Fund earned a hypothetical 5% total return each year, and that the Fund’s expenses were those in the table. For Class A and Institutional Class shares, your costs would be the same whether you sold your shares or continued to hold them at the end of each period. Actual performance and expenses may be higher or lower.

	1 Year	3 Years	5 Years	10 Years
Class A	$523	$730	$956	$1,606
Class C (assuming redemption)	$273	$536	$932	$2,041
Class C (assuming no redemption)	$173	$536	$932	$2,041
Institutional Class	$61	$192	$340	$768

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 operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 116% of the average value of its portfolio. During the most recent fiscal year, the Fund's portfolio turnover rate including mortgage dollar roll transactions was 345%.

Principal Investment Strategies

To pursue its goal, the Fund invests primarily in a diversified mix of fixed rate and floating rate debt securities. The Fund’s investments may include securities issued by domestic and foreign governments, corporate entities, and trust structures. The Fund may invest in a broad array of securities, including: securities issued or guaranteed as to principal or interest by the U.S. government or any of its agencies or instrumentalities; inflation-linked debt securities; municipal securities; corporate bonds; commercial paper; mortgage-backed securities and other asset-backed securities; and loans. Securities in which the Fund may invest may be structured as fixed rate debt; floating rate debt; and debt that may not pay interest at the time of issuance.

The Fund may invest in debt securities across the credit spectrum, including investment grade securities, below investment grade securities and unrated securities, and may invest without limit in below investment grade securities (“high yield bonds,” commonly known as “junk bonds”). The Fund considers debt securities to be below investment grade if, at the time of investment, they are rated below the four highest categories by at least one independent credit rating agency or, if unrated, are determined by the Portfolio Managers to be of comparable quality.

The Fund may also invest in derivative instruments as a means of hedging risk and/or for investment purposes, which may include altering the Fund’s exposure to currencies, interest rates, inflation, sectors and individual issuers. These derivative instruments may include futures, forwards, including forward foreign currency contracts, and swaps, such as total return swaps, credit default swaps and interest rate swaps, options on futures and options on interest rate swaps, otherwise known as swaptions.

The Fund may also invest without limit in foreign securities, but normally will not invest more than 50% of its total assets at the time of investment in obligations of issuers in emerging market countries. The Fund considers emerging market countries to be countries included in the JPMorgan Emerging Markets Bond Index - Global Diversified, the JPMorgan Corporate Emerging Markets Bond Index - Diversified, the JPMorgan Emerging Local Markets Index or the JPMorgan Government Bond Index - Emerging Markets Global Diversified, as well as those countries which are not defined as a High Income Organization for Economic Cooperation and Development (OECD) member country by the World Bank.

Additionally, the Fund may invest in tender option bonds (which include inverse floaters created as part of tender option bond transactions), convertible securities, restricted securities and preferred securities. The Fund may also engage in when-issued and forward-settling securities (such as to-be-announced (“TBA”) mortgage-backed securities), which involve a commitment by the Fund to purchase securities that will be issued or settled at a later date. The Fund may enter into a TBA agreement and “roll over” such agreement prior to the settlement date (e.g., mortgage dollar rolls) by selling the obligation to purchase the securities set forth in the agreement and entering into a new TBA agreement for future delivery of pools of mortgage-backed securities. The Fund may also hold cash and short-term securities, including cash equivalents and other debt obligations.

The Fund may invest in debt securities of any maturity and does not have a target average duration.

In an effort to achieve its goal, the Fund may engage in active and frequent trading.

Neuberger Berman Strategic Income Fund

February 28, 2019

Investment Philosophy and Process

The Portfolio Management Team’s investment philosophy is rooted in the belief that positive results can be achieved through a consistently applied, risk-managed approach to portfolio management that leverages the strengths of its proprietary fundamental research capabilities, decision-making frameworks, and quantitative risk management tools. The Portfolio Management Team employs an integrated investment process in managing the Fund.

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Portfolio Strategy: The Portfolio Management Team establishes the investment profile for the Fund, which it monitors on an ongoing basis, including exposures to sectors (such as government, structured debt, credit, etc.) and duration/yield curve positioning, utilizing internally generated data that are produced by specialty sector investment teams in conjunction with asset allocation tools.

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Strategy Implementation: Once the Portfolio Management Team establishes the investment profile for the Fund, the specialty sector investment teams and the Portfolio Management Team determine industry/sub-sector weightings and make securities selections within the types of securities that the Fund can purchase, such as investment grade securities, below investment grade securities, emerging market securities and non-U.S. dollar denominated securities.

When assessing the worth of a particular security, the teams utilize internally generated research and proprietary quantitatively driven tools and frameworks (including an analysis of cash flows, ability to pay principal and interest, balance sheet composition, market positioning, and the team’s assessment of Environmental, Social and Governance (ESG) factors) to a) establish an internal outlook, b) evaluate the market’s outlook as it is reflected in asset prices, and c) contrast the two. The teams then use the information generated by this process to decide which securities the Fund will own. The teams will generally purchase securities if their internal outlook suggests a security is undervalued by the market and sell securities if their internal outlook suggests a security is overvalued by the market. The goal is to identify and evaluate investment opportunities that others may have missed.

PRINCIPAL INVESTMENT RISKS

Most of the Fund’s performance depends on what happens in the market for debt instruments, the Portfolio Managers' evaluation of those developments, and the success of the Portfolio Managers in implementing the Fund's investment strategies. The Fund’s use of derivative instruments will result in leverage, which amplifies the risks that are associated with these markets. The market's behavior can be difficult to predict, particularly in the short term. There can be no guarantee that the Fund will achieve its goal. The Fund may take temporary defensive and cash management positions; to the extent it does, it will not be pursuing its principal investment strategies.

The Fund is a mutual fund, not a bank deposit, and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency. The value of your investment may fall, sometimes sharply, and you could lose money by investing in the Fund.

The following risks, which are described in alphabetical order and not in order of importance or potential exposure, can significantly affect the Fund’s performance:

Call Risk. Upon the issuer’s desire to call a security, or under other circumstances where a security is called, including when interest rates are low and issuers opt to repay the obligation underlying a “callable security” early, the Fund may have to reinvest the proceeds in an investment offering a lower yield and may not benefit from any increase in value that might otherwise result from declining interest rates.

Commercial Paper Risk. Commercial paper is a short-term debt security issued by a corporation, bank, municipality, or other issuer. Issuers generally do not register their commercial paper with the SEC. While some unregistered commercial paper normally is deemed illiquid, the Manager may in certain cases determine that such paper is liquid. In some cases, the ratings of commercial paper issuers have been downgraded abruptly, leaving holders with little opportunity to avoid losses.

Convertible Securities Risk. The value of a convertible security, which is a form of hybrid security (i.e., a security with both debt and equity characteristics), typically increases or decreases with the price of the underlying common stock. In general, a convertible security is subject to the market risks of stocks when the underlying stock’s price is high relative to the conversion price and is subject to the market risks of debt securities when the underlying stock’s price is low relative to the conversion price. The general market risks of debt securities that are common to convertible securities include, but are not limited to, interest rate risk and credit risk. Many convertible securities have credit ratings that are below investment grade and are subject to the same risks as an investment in lower-rated debt securities (commonly known as “junk bonds”). To the extent the Fund invests in convertible securities issued by small- or mid-cap companies, it will be subject to the risks of investing in such companies. The securities of small- and mid-cap companies may fluctuate more widely in price than the market as a whole and there may also be less trading in small- or mid-cap securities.

Neuberger Berman Strategic Income Fund

February 28, 2019

Credit Risk. Credit risk is the risk that issuers, guarantors, or insurers may fail, or become less able, to pay interest and/or principal when due. A downgrade or default affecting any of the Fund’s securities could affect the Fund’s performance. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.

Currency Risk. To the extent that the Fund invests in securities or other instruments denominated in or indexed to foreign currencies, changes in currency exchange rates could adversely impact investment gains or add to investment losses. Currency exchange rates may fluctuate significantly over short periods of time and can be affected unpredictably by intervention, or failure to intervene, by U.S. or foreign governments or central banks or by currency controls or political developments in the U.S. or abroad.

Derivatives Risk. Use of derivatives is a highly specialized activity that can involve investment techniques and risks different from, and in some respects greater than, those associated with investing in more traditional investments, such as stocks and bonds. Derivatives can be highly complex and highly volatile and may perform in unanticipated ways. Derivatives can create leverage, and the Fund could lose more than the amount it invests; some derivatives can have the potential for unlimited losses. Derivatives may at times be highly illiquid, and the Fund may not be able to close out or sell a derivative at a particular time or at an anticipated price. Derivatives can be difficult to value and valuation may be more difficult in times of market turmoil. There may be imperfect correlation between the behavior of a derivative and that of the reference instrument underlying the derivative. Derivatives may involve risks different from, and possibly greater than, the risks associated with investing directly in the reference instrument. Suitable derivatives may not be available in all circumstances, and there can be no assurance that the Fund will use derivatives to reduce exposure to other risks when that might have been beneficial. Derivatives involve counterparty risk, which is the risk that the other party to the derivative will fail to make required payments or otherwise comply with the terms of the derivative. That risk is generally thought to be greater with over-the-counter (OTC) derivatives than with derivatives that are exchange traded or centrally cleared. When the Fund uses derivatives, it will likely be required to provide margin or collateral and/or segregate cash or other liquid assets; these practices are intended to satisfy contractual undertakings and regulatory requirements and will not prevent the Fund from incurring losses on derivatives. The need to provide margin or collateral and/or segregate assets could limit the Fund's ability to pursue other opportunities as they arise. Ongoing changes to regulation of the derivatives markets and potential changes in the regulation of funds using derivative instruments could limit the Fund’s ability to pursue its investment strategies. New regulation of derivatives may make them more costly, or may otherwise adversely affect their liquidity, value or performance.

Additional risks associated with certain types of derivatives are discussed below:

Futures. Futures contracts are subject to the risk that an exchange may impose price fluctuation limits, which may make it difficult or impossible for a fund to close out a position when desired.

Forward Contracts. There are no limitations on daily price movements of forward contracts. Changes in foreign exchange regulations by governmental authorities might limit the trading of forward contracts on currencies.

Swaps. The risk of loss with respect to swaps generally is limited to the net amount of payments that the Fund is contractually obligated to make or, in the case of the other party to a swap defaulting, the net amount of payments that the Fund is contractually entitled to receive. If the Fund sells a credit default swap, however, the risk of loss may be the entire notional amount of the swap.

Some swaps are now executed through an organized exchange or regulated facility and cleared through a regulated clearing organization. The absence of an organized exchange or market for swap transactions may result in difficulties in trading and valuation, especially in the event of market disruptions. The use of an organized exchange or market for swap transactions is expected to result in swaps being easier to trade and value, but this may not always be the case.

Foreign and Emerging Market Risk. Foreign securities, including those issued by foreign governments, involve risks in addition to those associated with comparable U.S. securities. Additional risks include exposure to less developed or less efficient trading markets; social, political, diplomatic, or economic instability; trade barriers and other protectionist trade policies (including those of the U.S.); significant government involvement in an economy and/or market structure; fluctuations in foreign currencies or currency redenomination; potential for default on sovereign debt; nationalization or expropriation of assets; settlement, custodial or other operational risks; higher transaction costs; confiscatory withholding or other taxes; and less stringent auditing, corporate disclosure, governance, and legal standards. As a result, foreign securities may fluctuate more widely in price, and may also be less liquid, than comparable U.S. securities. Regardless of where a company is organized or its stock is traded, its performance may be affected significantly by events in regions from which it derives its profits or in which it conducts significant operations.

Neuberger Berman Strategic Income Fund

February 28, 2019

Investing in emerging market countries involves risks in addition to and greater than those generally associated with investing in more developed foreign countries. The governments of emerging market countries may be more unstable and more likely to impose capital controls, nationalize a company or industry, place restrictions on foreign ownership and on withdrawing sale proceeds of securities from the country, intervene in the financial markets, and/or impose burdensome taxes that could adversely affect security prices. In addition, the economies of emerging market countries may be dependent on relatively few industries that are more susceptible to local and global changes. Emerging market countries may also have less developed legal and accounting systems. Securities markets in emerging market countries are also relatively small and have substantially lower trading volumes. Securities of issuers in emerging market countries may be more volatile and less liquid than securities of issuers in foreign countries with more developed economies or markets and the situation may require that the Fund fair value its holdings in those countries.

Securities of issuers traded on foreign exchanges may be suspended, either by the issuers themselves, by an exchange or by governmental authorities. The likelihood of such suspensions may be higher for securities of issuers in emerging or less-developed market countries than in countries with more developed markets. Trading suspensions may be applied from time to time to the securities of individual issuers for reasons specific to that issuer, or may be applied broadly by exchanges or governmental authorities in response to market events. Suspensions may last for significant periods of time, during which trading in the securities and in instruments that reference the securities, such as derivative instruments, may be halted. In the event that the Fund holds material positions in such suspended securities or instruments, the Fund’s ability to liquidate its positions or provide liquidity to investors may be compromised and the Fund could incur significant losses.

High Portfolio Turnover. The Fund may engage in active and frequent trading and may have a high portfolio turnover rate, which may increase the Fund’s transaction costs, may adversely affect the Fund’s performance and may generate a greater amount of capital gain distributions to shareholders than if the Fund had a low portfolio turnover rate.

Risk of Increase in Expenses. A decline in the Fund’s average net assets during the current fiscal year due to market volatility or other factors could cause the Fund’s expenses for the current fiscal year to be higher than the expense information presented in “Fees and Expenses.”

Inflation-Linked Debt Securities Risk. Inflation-linked debt securities are structured to provide protection against inflation. The value of the principal or the interest income paid on an inflation-linked debt security is adjusted to track changes in an official inflation measure. Repayment of the original principal upon maturity (as adjusted upward for inflation, if any) is guaranteed in the case of U.S. Treasury inflation-indexed debt securities. For inflation-linked securities that do not provide a similar guarantee, the adjusted principal value of the securities repaid at maturity may be less than the original principal value. The value of inflation-linked debt securities is expected to change in response to changes in real interest rates. Real interest rates are tied to the relationship between nominal interest rates and the rate of inflation. In periods of deflation, the Fund may have no income at all from such investments. In general, the price of an inflation-linked debt security falls when real interest rates rise, and rises when real interest rates fall. Interest payments on inflation-linked debt securities will vary as the principal and/or interest is adjusted for inflation and can be unpredictable. The principal value of an investment in the Fund is not protected or otherwise guaranteed by virtue of the Fund’s investments in inflation-linked debt securities.

Interest Rate Risk. The Fund’s yield and share price will fluctuate in response to changes in interest rates. In general, the value of investments with interest rate risk, such as debt securities, will move in the direction opposite to movements in interest rates. If interest rates rise, the value of such securities may decline. Typically, the longer the maturity or duration of a debt security, the greater the effect a change in interest rates could have on the security’s price. Thus, the sensitivity of the Fund’s debt securities to interest rate risk will increase with any increase in the duration of those securities.

Inverse Floater Risk. An inverse floater earns interest at rates that vary inversely to changes in short-term interest rates. An inverse floater produces less income (and may produce no income) and may decline in value when market rates rise. An investment in an inverse floater may involve greater risk than an investment in a fixed rate security. Inverse floaters generally will underperform the market for fixed rate securities in a rising interest rate environment. An inverse floater typically involves leverage, which can magnify the Fund’s losses.

Issuer-Specific Risk. An individual security may be more volatile, and may perform differently, than the market as a whole.

Leverage Risk. Leverage amplifies changes in the Fund’s net asset value. Derivatives and when-issued and forward-settling securities may create leverage and can result in losses to the Fund that exceed the amount originally invested and may accelerate the rate of losses. There can be no assurance that the Fund’s use of any leverage will be successful. The Fund’s investment exposure can exceed its net assets, sometimes by a significant amount.

Neuberger Berman Strategic Income Fund

February 28, 2019

Liquidity Risk. From time to time, the trading market for a particular investment in which the Fund invests, or a particular instrument in which the Fund is invested, may become less liquid or even illiquid. Illiquid investments frequently can be more difficult to purchase or sell at an advantageous price or time, and there is a greater risk that the investments may not be sold for the price at which the Fund is carrying them. Certain investments that were liquid when the Fund purchased them may become illiquid, sometimes abruptly. An inability to sell a portfolio position can adversely affect the Fund’s value or prevent the Fund from being able to take advantage of other investment opportunities. Market prices for such securities or other investments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses.

Unexpected episodes of illiquidity, including due to market factors, instrument or issuer-specific factors and/or unanticipated outflows, may limit the Fund’s ability to pay redemption proceeds within the allowable time period. To meet redemption requests during periods of illiquidity, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Loan Interests Risk. Loan interests generally are subject to restrictions on transfer, and the Fund may be unable to sell its loan interests at a time when it may otherwise be desirable to do so or may be able to sell them promptly only at prices that are less than what the Fund regards as their fair market value. Accordingly, loan interests may at times be illiquid. Loan interests may be difficult to value and may have extended settlement periods (the settlement cycle for many bank loans exceeds 7 days). Extended settlement periods may result in cash not being immediately available to the Fund. As a result, during periods of unusually heavy redemptions, the Fund may have to sell other investments or borrow money to meet its obligations. Interests in loans made to finance highly leveraged companies or to finance corporate acquisitions or other transactions may be especially vulnerable to adverse changes in economic or market conditions. Interests in secured loans have the benefit of collateral and, typically, of restrictive covenants limiting the ability of the borrower to further encumber its assets. There is a risk that the value of any collateral securing a loan in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the loan. In the event the borrower defaults, the Fund’s access to the collateral may be limited or delayed by bankruptcy or other insolvency laws. Further, in the event of a default, second or lower lien secured loans, and unsecured loans, will generally be paid only if the value of the collateral exceeds the amount of the borrower’s obligations to the senior secured lenders, and the remaining collateral may not be sufficient to cover the full amount owed on the loan in which the Fund has an interest. Further, there is a risk that a court could take action with respect to a loan that is adverse to the holders of the loan and the Fund may need to retain legal counsel to enforce its rights in any resulting event of default, bankruptcy, or similar situation.

The Fund may acquire a loan interest by obtaining an assignment of all or a portion of the interests in a particular loan that are held by an original lender or a prior assignee. As an assignee, the Fund normally will succeed to all rights and obligations of its assignor with respect to the portion of the loan that is being assigned. However, the rights and obligations acquired by the purchaser of a loan assignment may differ from, and be more limited than, those held by the original lenders or the assignor. The Fund may also purchase a participation in a loan interest that is held by another party. When the Fund’s loan interest is a participation, the Fund may have less control over the exercise of remedies than the party selling the participation interest, and the Fund normally would not have any direct rights against the borrower. It is possible that the Fund could be held liable, or may be called upon to fulfill other obligations, with respect to loans in which it receives an assignment in whole or in part, or in which it owns a participation. The potential for such liability is greater for an assignee than for a participant.

Lower-Rated Debt Securities Risk. Lower-rated debt securities (commonly known as “junk bonds”) and unrated debt securities determined to be of comparable quality involve greater risks than investment grade debt securities. Such securities may fluctuate more widely in price and yield and may fall in price during times when the economy is weak or is expected to become weak. These securities also may be difficult to sell at the time and price the Fund desires. Lower-rated debt securities are considered by the major rating agencies to be predominantly speculative with respect to the issuer’s continuing ability to pay principal and interest and carry a greater risk that the issuer of such securities will default in the timely payment of principal and interest. Issuers of securities that are in default or have defaulted may fail to resume principal or interest payments, in which case the Fund may lose its entire investment. The creditworthiness of issuers of these securities may be more complex to analyze than that of issuers of investment grade debt securities, and the overreliance on credit ratings may present additional risks.

Market Volatility Risk. Markets may be volatile and values of individual securities and other investments, including those of a particular type, 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. Geopolitical risks may add to instability in world economies and markets generally. Changes in value may be temporary or may last for extended periods. If the Fund sells a portfolio position before it reaches its market peak, it may miss out on opportunities for better performance.

Neuberger Berman Strategic Income Fund

February 28, 2019

Mortgage- and Asset-Backed Securities Risk. The value of mortgage- and asset-backed securities will be influenced by the factors affecting the housing market or the assets underlying the securities. These securities tend to be more sensitive to changes in interest rates than other types of debt securities. In addition, investments in mortgage- and asset-backed securities may be subject to prepayment and extension risk, call risk, credit risk, valuation risk, and illiquid investment risk, sometimes to a higher degree than various other types of debt securities. These securities are also subject to the risk of default on the underlying mortgages or assets, particularly during periods of market downturn, and an unexpectedly high rate of defaults on the underlying assets will adversely affect the security’s value.

Municipal Securities Risk. The municipal securities market could be significantly affected by adverse political and legislative changes, as well as uncertainties related to taxation or the rights of municipal security holders. Changes in the financial health of a municipality or other issuer, or an insurer of municipal securities, may make it difficult for it to pay interest and principal when due and may affect the overall municipal securities market. Declines in real estate prices and general business activity may reduce the tax revenues of state and local governments. Municipal issuers have on occasion defaulted on obligations, been downgraded, or commenced insolvency proceedings.

Because many municipal securities are issued to finance similar types of projects, especially those related to education, health care, housing, transportation, and utilities, conditions in those sectors can affect the overall municipal securities market. Interest on municipal securities paid out of current or anticipated revenues from a specific project or specific asset (so-called “private activity bonds”) may be adversely impacted by declines in revenue from the project or asset. Declines in general business activity could affect the economic viability of facilities that are the sole source of revenue to support private activity bonds.

Municipal bonds may be bought or sold at a market discount (i.e., a price less than the bond’s principal amount or, in the case of a bond issued with original issue discount (“OID”), a price less than the amount of the issue price plus accrued OID). If the market discount is more than a de minimis amount, and if the bond has a maturity date of more than one year from the date it was issued, then any market discount that accrues annually, or any gains earned on the disposition of the bond, generally will be subject to federal income taxation as ordinary (taxable) income rather than as capital gains.

Operational and Cybersecurity Risk. The Fund and its service providers, and your ability to transact with the Fund, may be negatively impacted due to operational matters arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents. Cybersecurity incidents may allow an unauthorized party to gain access to fund assets, customer data, or proprietary information, or cause the Fund or its service providers, as well as the securities trading venues and their service providers, to suffer data corruption or lose operational functionality. It is not possible for the Manager or the other Fund service providers to identify all of the cybersecurity or other operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. Most issuers in which the Fund invests are heavily dependent on computers for data storage and operations, and require ready access to the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of securities in which the Fund invests, leading to significant loss of value.

Preferred Securities Risk. Preferred securities, which are a form of hybrid security (i.e., a security with both debt and equity characteristics), may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities, however, unlike common stocks, participation in the growth of an issuer may be limited. Distributions on preferred securities are generally payable at the discretion of the issuer’s board of directors and after the company makes required payments to holders of its bonds and other debt securities. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt securities to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred securities of larger companies. Preferred securities may be less liquid than common stocks.

Prepayment and Extension Risk. The Fund’s performance could be affected if borrowers pay back principal on certain debt securities, such as mortgage- or asset-backed securities, before (prepayment) or after (extension) the market anticipates such payments, shortening or lengthening their duration. Due to a decline in interest rates or an excess in cash flow into the issuer, a debt security might be called or otherwise converted, prepaid or redeemed before maturity. As a result of prepayment, the Fund may have to reinvest the proceeds in an investment offering a lower yield, may not benefit from any increase in value that might otherwise result from declining interest rates, and may lose any premium it paid to acquire the security. Conversely, rising market interest rates generally result in slower payoffs or extension, which effectively increases the duration of certain debt securities, heightening interest rate risk and increasing the magnitude of any resulting price declines.

Private Placements and Other Restricted Securities Risk. Private placements and other restricted securities may not be listed on an exchange and may have no active trading market. As a result of the absence of a public trading market, the prices of these securities may be more difficult to determine than publicly traded securities and these securities may involve heightened risk as

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compared to investments in securities of publicly traded companies. Private placements and other restricted securities may be illiquid, and it frequently can be difficult to sell them at a time when it may otherwise be desirable to do so or the Fund may be able to sell them only at prices that are less than what the Fund regards as their fair market value. Transaction costs may be higher for these securities. In addition, the Fund may get only limited information about the issuer of a private placement or other restricted security.

Recent Market Conditions. Some countries, including the U.S., are adopting more protectionist trade policies and moving away from the tighter financial industry regulations that followed the 2008 financial crisis. The U.S. is also said to be considering significant new investments in infrastructure and national defense which, coupled with lower federal tax rates, could lead to sharply increased government borrowing and higher interest rates. The exact shape of these policies is still being worked out through the political process, but the equity and debt markets may react strongly to expectations, which could increase volatility, especially if the market’s expectations for changes in government policies are not borne out. Although prices of many U.S. equity securities have increased substantially over several years, some market prognosticators reportedly believe market indicators point toward a period of decline. The economies of many other nations are weaker than that of the U.S., and economic weakness in U.S. trading partners may harm long-term growth in the U.S. Higher interest rates may further strengthen the already strong U.S. dollar, which may also harm U.S. companies that rely significantly on exports. The recent decision by the Fed to pause its program of rate increases may reflect concerns about the strength of the U.S. economy.

High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. Interest rates have been unusually low in recent years in the U.S. and abroad. Because there is little precedent for this situation, it is difficult to predict the impact on various markets of a significant rate increase or other significant policy changes. There is a greater risk of rising interest rates than has historically been the case due to the current period of relatively low rates and the effect of government fiscal policy initiatives and potential market reaction to those initiatives.

In addition, national economies and financial markets are increasingly interconnected, which increases the possibilities that conditions in one country or region might adversely impact issuers in a different country or region. The rise in protectionist trade policies, changes to some major international trade agreements and the potential for changes to others, could affect the economies of many nations in ways that cannot necessarily be foreseen at the present time.

The impact of the United Kingdom’s vote to leave the European Union (the “EU”), commonly referred to as “Brexit,” is impossible to know for sure at this point. The effect on the economies of the United Kingdom and the EU will likely depend on the nature of trade relations between the UK and the EU and other major economies following Brexit, which are matters to be negotiated. There is a substantial risk that the UK will separate from the EU on or after March 29, 2019 without a formal agreement, which could be highly disruptive to the economies of both regions.

Redemption Risk. The Fund may experience periods of heavy redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Redemption risk is heightened during periods of declining or illiquid markets. Heavy redemptions could hurt the Fund’s performance. Regulators have expressed concern that a general rise in interest rates has the potential to cause investors to move out of fixed income securities on a large scale, which may increase redemptions from mutual funds that hold large amounts of fixed income securities, and that such a move, coupled with a reduction in the ability or willingness of dealers and other institutional investors to buy or hold fixed income securities, may result in decreased liquidity and increased volatility in the fixed income markets.

Risk Management. Risk is an essential part of investing. No risk management program can eliminate the Fund’s exposure to adverse events; at best, it may only reduce the possibility that the Fund will be affected by such events, and especially those risks that are not intrinsic to the Fund’s investment program. The Fund could experience losses if judgments about risk prove to be incorrect.

Sector Risk. From time to time, based on market or economic conditions, the Fund may have significant positions in one or more sectors of the market. To the extent the Fund invests more heavily in particular sectors, its performance will be especially sensitive to developments that significantly affect those sectors. Individual sectors may be more volatile, and may perform differently, than the broader market. The industries that constitute a sector may all react in the same way to economic, political or regulatory events.

Sovereign Debt Risk. Sovereign debt securities are subject to the risk that a governmental entity may delay or refuse to pay interest or principal on its sovereign debt, due, for example, to cash flow problems, insufficient foreign currency reserves, political considerations, the size of the governmental entity’s debt position in relation to the economy, its policy toward international lenders or the failure to put in place economic reforms required by multilateral agencies. If a governmental entity defaults, it may

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ask for more time in which to pay or for further loans. There may be no legal process for collecting sovereign debt that a government does not pay nor are there bankruptcy proceedings through which all or part of the sovereign debt that a governmental entity has not repaid may be collected. Sovereign debt risk is increased for emerging market issuers.

Tender Option Bonds and Related Securities Risk. The Fund's use of tender option bonds may reduce the Fund's return and/or increase volatility. Tender option bonds are created when municipal bonds are deposited into a trust or other special purpose vehicle, which issues two classes of certificates with varying economic interests. Holders of floating rate certificates receive tax-exempt interest based on short-term rates and may tender the certificates to the trust at face value. Holders of residual income certificates (“inverse floaters”) receive tax-exempt interest at a rate based on the difference between the interest rate earned on the underlying bonds and the interest paid to floating rate certificate holders, and bear the risk that the underlying bonds decline in value. Investments in tender option bonds expose the Fund to counterparty risk and leverage risk. An investment in tender option bonds typically will involve greater risk than an investment in a municipal fixed rate security, including greater risk of loss of principal. Certain tender option bonds may be illiquid. A trust may be terminated if, for example, the issuer of the underlying bond defaults on interest payments or the credit rating assigned to the issuer of the underlying bond is downgraded.

U.S. Government Securities Risk. Although the Fund may hold securities that carry U.S. government guarantees, these guarantees do not extend to shares of the Fund itself and do not guarantee the market prices of the securities. Furthermore, not all securities issued by the U.S. government and its agencies and instrumentalities are backed by the full faith and credit of the U.S. Treasury.

Valuation Risk. The Fund may not be able to sell an investment at the price at which the Fund has valued the investment. The Fund’s ability to value its investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents.

Variable and Floating Rate Instruments Risk. The market prices of instruments with variable and floating interest rates are generally less sensitive to interest rate changes than are the market prices of instruments with fixed interest rates. Variable and floating rate instruments may decline in value if market interest rates or interest rates paid by such instruments do not move as expected. Certain types of floating rate instruments, such as interests in bank loans, may be subject to greater liquidity risk than other debt securities.

When-Issued and Forward-Settling Securities Risk. When-issued and forward-settling securities can have a leverage-like effect on the Fund, which can increase fluctuations in the Fund’s share price; may cause the Fund to liquidate positions when it may not be advantageous to do so, in order to satisfy its purchase obligations; and are subject to the risk that the security will not be issued or that a counterparty will fail to complete the sale or purchase of the security, in which case the Fund may lose the opportunity to purchase or sell the security at the agreed upon price.

PERFORMANCE

The following bar chart and table provide an indication of the risks of investing in the Fund. The bar chart shows how the Fund’s performance has varied from year to year, as represented by the performance of the Fund's Institutional Class. The returns in the bar chart do not reflect any applicable sales charges. If sales charges were reflected, returns would be lower than those shown. The table below the bar chart shows what the returns would equal if you averaged out actual performance over various lengths of time and compares the returns with the returns of a broad-based market index. The index, which is described in “Descriptions of Indices” in the prospectus, has characteristics relevant to the Fund's investment strategy. Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.

Returns would have been lower if the Manager had not reimbursed certain expenses and/or waived a portion of the investment management fees during certain of the periods shown.

Past performance (before and after taxes) is not a prediction of future results. Visit www.nb.com or call 800-366-6264 for updated performance information.

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year-by-year % Returns as of 12/31 each year

Best quarter:    Q3 '09, 7.42%

Worst quarter:    Q2 '13, -2.85%

average annual total % returns as of 12/31/18

Strategic Income Fund	1 Year	5 Years	10 Years
Institutional Class Return Before Taxes	-2.35	2.63	5.81
Institutional Class Return After Taxes on Distributions	-4.00	1.00	3.94
Institutional Class Return After Taxes on Distributions and Sale of Fund Shares	-1.38	1.29	3.72
Class A Return Before Taxes	-6.90	1.35	4.94
Class C Return Before Taxes	-4.35	1.51	4.65
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	0.01	2.52	3.48
After-tax returns are shown for Institutional Class shares only and after-tax returns for other classes may vary. 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. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of Fund shares.

INVESTMENT MANAGER

Neuberger Berman Investment Advisers LLC (“Manager”) is the Fund’s investment manager.

PORTFOLIO MANAGERS

The Fund is managed by Thanos Bardas (Managing Director of the Manager), Ashok Bhatia, CFA (Managing Director of the Manager), David M. Brown, CFA (Managing Director of the Manager), Thomas J. Marthaler, CFA (Managing Director of the Manager), and Brad Tank (Managing Director, Chief Investment Officer and Global Head of Fixed Income of the Manager). Mr. Tank has managed the Fund since February 2008, Messrs. Bardas and Brown have managed the Fund since April 2009, Mr. Marthaler has managed the Fund since February 2013, and Mr. Bhatia has managed the Fund since December 2017.

Buying and Selling Shares

You may purchase, redeem (sell) or exchange shares of the Fund on any day the New York Stock Exchange is open, at the Fund's net asset value per share next determined after your order is received in proper form, subject to any applicable sales charge. Shares of the Fund generally are available only through certain investment providers, such as banks, brokerage firms, workplace retirement programs, and financial advisers. Contact any investment provider authorized to sell the Fund's shares. See “Maintaining Your Account” in the prospectus for eligibility requirements for purchases of Institutional Class shares.

For certain investors, certain shares of the Fund may be available directly from Neuberger Berman BD LLC by regular, first class mail (Neuberger Berman Funds, Boston Service Center, P.O. Box 8403, Boston, MA 02266-8403), by express delivery, registered mail, or certified mail (Neuberger Berman Funds, c/o State Street Bank and Trust Company, 30 Dan Road, Canton, MA 02021), or by wire, fax, telephone, exchange, or systematic investment or withdrawal (call 800-877-9700 for instructions). See

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“Maintaining Your Account”and “Direct Investors” in the prospectus for eligibility requirements for direct purchases of shares and for instructions on buying and redeeming (selling) shares directly.

The minimum initial investment in Class A or Class C shares is $1,000. Additional investments can be as little as $100. These minimums may be waived in certain cases.

The minimum initial investment in Institutional Class shares is $1 million. This minimum may be waived in certain cases.

Tax Information

Unless you invest in the Fund through a tax-advantaged retirement plan or account or are a tax-exempt investor, you will be subject to tax on Fund distributions to you of ordinary income and/or net capital gains. Those distributions generally are not taxable to such a plan or account or a tax-exempt investor, although withdrawals from certain retirement plans and accounts generally are subject to federal income tax.

Payments to Investment Providers and Other Financial Intermediaries

If you purchase shares of the Fund through an investment provider or other financial intermediary, such as a bank, brokerage firm, workplace retirement program, or financial adviser (who may be affiliated with Neuberger Berman), the Fund and/or Neuberger Berman BD LLC and/or its affiliates may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the investment provider or other financial intermediary and its employees to recommend the Fund over another investment. Ask your investment provider or visit its website for more information.

The “Neuberger Berman” name and logo and “Neuberger Berman Investment Advisers LLC” are registered service marks of Neuberger Berman Group LLC. The individual Fund name in this prospectus is either a service mark or a registered service mark of Neuberger Berman Investment Advisers LLC. ©2019 Neuberger Berman BD LLC, distributor. All rights reserved.

Neuberger Berman Strategic Income Fund

February 28, 2019