Form 11-K BERKSHIRE HATHAWAY INC For: Dec 31

The following description of the Employee Savings and Stock Ownership Plan of General Re Corporation and its Domestic Subsidiaries (referred to herein as the “Plan” or the “Plan Document”) is provided for general information purposes only. Participants should refer to the Plan Document for a more complete description of the Plan’s provisions.

General – The Plan is a defined contribution plan covering employees of General Re Corporation (“Gen Re”), and its Domestic Subsidiaries who are regularly scheduled to complete at least one thousand hours of service (“Company Service”) per year. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). Gen Re is a wholly-owned subsidiary of Berkshire Hathaway Inc.

Employee Stock Ownership Plan – In July 1989, Gen Re established a leveraged Employee Stock Ownership Plan (“ESOP”) which is designed to comply with Section 4975(e)(7) and the regulations thereunder of the Internal Revenue Code (“IRC”) of 1986, as amended, and is subject to the applicable provisions of ERISA. The Plan entered into a $150,000,000 term loan agreement (the “Loan”) with the Plan sponsor, Gen Re. The Loan provided for annual payments of principal and interest and was initially to be repaid in full by 2014, with an interest rate of 9.25%. The proceeds of the Loan were used by the Plan to purchase 1,754,386 shares of 7-1/4% cumulative convertible preferred stock of Gen Re (“Preferred Stock”), which was used as collateral for the Loan. The Loan was guaranteed by the Plan sponsor.

On December 21, 1998, Gen Re merged with Berkshire Hathaway Inc. At that time, the Plan trustee, State Street Bank and Trust Company (“State Street”), converted 1,686,721 shares of Preferred Stock, which was the amount outstanding as of December 21, 1998, into 177,106 shares of Berkshire Hathaway Inc. Class B common stock (“Berkshire Common Stock”). The Berkshire Common Stock then became the collateral for the Loan.

Effective January 1, 1999, Gen Re amended the original terms of the Loan. The revised agreement provided that any outstanding amount due on the Loan is payable upon maturity in 2034 with interest payments at an annual rate of 6.5% and annual principal prepayment as required. As discussed further below, the Loan was repaid during 2022.

Effective January 21, 2010, Berkshire Common Stock was split 50 for 1. All appropriate allocations were made to the records of State Street, Fidelity Management Trust Company (“Fidelity”) and Gen Re.

Effective December 31, 2017, the Plan was amended to include eligible employees of Government Employees Insurance Companies ("GEICO") as a class of participants in the Plan and as a result the Plan changed its name to the General Re Corporation and Government Employees Companies Savings and Stock Ownership Plan. The intent of this amendment was to allow GEICO employees to become Plan participants and receive unallocated shares of Berkshire Common Stock for its annual profit-sharing award. GEICO shared in the expenses and made employer contributions to the ESOP Trust in return for shares to be released. Such payments were applied against the outstanding debt service of the Loan. After January 1, 2019, there were no further allocations to GEICO employees.

From December 31, 2017 through June 1, 2020, certain employees of GEICO were a separate class of participants of the Plan and received Berkshire Common Stock. Effective June 1, 2020, such GEICO employees were no longer eligible to be participants and ceased to be participants in the Plan and as a result 1,545,644 shares of Berkshire Common Stock were transferred out of the Plan. In addition, the name of the Plan was changed to the Employee Savings and Stock Ownership Plan of General Re Corporation and its Domestic Subsidiaries.

During 2022, the remaining unallocated Berkshire Common Stock was utilized by the Plan. In addition, the Plan settled the remaining principal and interest balance on the Loan. Contributions to participants and matching contributions were made in cash beginning with the October 31, 2022 payroll period.

Gen Re made a final cash contribution to the Plan in 2022 necessary to fully repay the Loan. The Plan’s investment in the Berkshire B ESOP Fund consists solely of Berkshire Common Stock shares.

During 2025, 132,943 shares of Berkshire Common Stock were sold and retired from the Plan or exchanged for shares in other eligible investments in the Plan. The Plan held 1,223,981 and 1,356,924 shares of Berkshire Common Stock in the Berkshire B ESOP Fund as of December 31, 2025 and December 31, 2024, respectively. As of December 31, 2025, the Plan also held 182,639 shares of Berkshire Common Stock via the Berkshire B Unitized Fund.

Accounting Standards Codification 820, Fair Value Measurements and Disclosures, provides a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value, as follows: Level 1, which refers to securities valued using unadjusted quoted prices from active markets for identical assets; Level 2, which refers to securities not traded on an active market but for which observable market inputs are readily available; and Level 3, which refers to securities valued based on significant unobservable inputs. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Plan’s policy is to recognize significant transfers between levels at the actual date of the event or change in circumstances that caused the transfer at the end of the reporting period.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the determination of which category within the fair value hierarchy is appropriate for any given investment is based on the lowest level of input that is significant to the fair value measurement. The Plan’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the investment.

The following is a description of the valuation methodologies used for Plan assets measured at fair value.

Berkshire B ESOP Fund – Valued at the closing price reported on the active market on which Berkshire Common Stock is traded.

Berkshire B Unitized Stock Fund – Represents a unitized employer stock fund comprised of underlying Berkshire Common Stock and a money market component. A unitized fund is not a registered security. The value of the unit reflects the combined market value of the underlying stock and market value of the money market position. The market value of the common stock portion of the Berkshire B Unitized Stock Fund is based on the closing market price of the Berkshire Common Stock on the New York Stock Exchange multiplied by the number of shares held in the fund. The carrying amount of the money market component approximates fair value.

Mutual Funds – Valued at the daily closing price as reported on the active market on which the individual securities are traded. These funds are required to publish their daily net asset value and to transact at that price.

Collective Trust Funds – At December 31, 2025, this consists of the Managed Income Portfolio Class 2 and the Fidelity Growth Company Commingled Pool A, which are collective trust funds sponsored by Fidelity. The fair value of the collective trusts are measured at net asset value per share as reported by the fund manager. The net asset value is used as a practical expedient to estimate fair value. The redemption frequency is daily and there are no restrictions or notice period required. The Plan had no outstanding funding commitments to the collective trust fund as of December 31, 2025 and 2024.

Gen Re intends to continue to operate the Plan but reserves the right to suspend contributions temporarily or to amend or terminate the Plan. If the Plan were to be terminated, all participants would become fully vested, and all the Plan assets would be used solely to provide the benefits payable to participants and their beneficiaries, in accordance with the provisions of ERISA.

Certain Plan investments are shares of mutual funds and are managed by Fidelity Investments Institutional Operations Company, Inc. (“FIIO”) or Fidelity Management and Research Company (“FMR”). Fidelity Management Trust Company (“FMTC”) manages the collective trust and is the administrator as defined by the Plan and these transactions qualify as exempt party-in-interest transactions. FIIO, FMR and FMTC are considered parties in interest. Fees paid by the Plan for investment management services were included as a reduction of the return earned on each fund. These fees and service fees are also considered exempt party-in-interest transactions.

The Plan has a revenue-sharing agreement whereby FMTC returns certain revenue sharing amounts to offset the Plan’s administrative expenses or allocate to participant accounts. Future Plan expenses can be paid from any excess remaining revenue sharing amounts. The revenue-sharing transactions are considered exempt party-in-interest transactions.

The Berkshire B ESOP Fund and the Berkshire B Unitized Stock Fund consist of Berkshire Common Stock shares issued by Berkshire Hathaway Inc., the ultimate parent of the Plan sponsor.

Shares of Berkshire Common Stock in the Berkshire B ESOP Fund have fair values of $615,234,016 and $615,066,467 as of December 31, 2025 and 2024, respectively. The assets in the fund appreciated by $66,069,247 during 2025.

Shares of Berkshire Common Stock and the money market component in the Berkshire B Unitized Stock Fund have fair values of $93,000,188 and $95,101,885 as of December 31, 2025 and 2024, respectively. The stock investment portion of this fund appreciated in value by $9,869,989 during the year ended December 31, 2025.

The Internal Revenue Service (“IRS”) has determined and informed Gen Re by a letter dated April 9, 2018 that the Plan and related trust were designed in accordance with the applicable regulations of the IRC. Although the Plan has been amended since receiving the determination letter, Plan management believes that the Plan is designed and being operated in compliance with the applicable requirements of the IRC. Therefore, no provision for income taxes has been included in the Plan’s financial statements.

GAAP requires Plan management to evaluate tax provisions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. Plan management has analyzed the tax positions taken by the Plan, and has concluded that as of December 31, 2025 and 2024, there are no uncertain positions taken or expected to be taken that would require recognition of a liability (or asset) or disclosure in the financial statements. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. The Plan administrator believes it is no longer subject to income tax examinations for years prior to 2022.

EMPLOYEE SAVINGS AND STOCK OWNERSHIP PLAN OF GENERAL RE

CORPORATION AND ITS DOMESTIC SUBSIDIARIES

FORM 5500, SCHEDULE H, PART IV, LINE 4i - SCHEDULE OF ASSETS

(HELD AT END OF YEAR) AS OF DECEMBER 31, 2025 - EIN# 06-1026471; Plan 002

** Cost information is not required for participant directed investments and, therefore, is not included.