Annual Report of Employee Stock Purchase/Savings Plan (Form 11-K)

The following description of the LiquidPower Specialty Products Inc. 401(k) and Profit Sharing Plan (the "Plan") provides only general information. Participants should refer to the Plan document for a more complete description of the Plan's provisions. The Plan is sponsored and administered by LiquidPower Specialty Products Inc. (the "Company"). The Plan also covers LiquidPower Specialty Products Transport, LLC which is a participating employer in the Plan. The Company is a wholly-owned subsidiary of Berkshire Hathaway Inc. (the "Parent").

General.

The Plan is a defined contribution plan which covers all employees, except for leased employees and nonresident aliens. Employees are eligible to participate in the Plan as of the first day of service. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"). Fidelity Management Trust Company is the trustee for the Plan.

Contributions.

Participants are automatically enrolled at a deferral rate of 3% after 30 days of employment and the rate increases by 1% annually up to a rate of 6%. Employees may make voluntary pre-tax contributions or after-tax Roth 401(k) contributions through salary deferrals, limited to 75% of each employee's eligible earnings, but not more than the maximum allowed by law. A participant upon proper notice and approval may enter into a special salary reduction agreement to make deferral contributions from any employer paid cash bonuses in an amount up to 100% of such bonuses, but not more than the maximum allowed by law. Unless a participant has entered into a special salary reduction agreement with respect to bonuses, the percentage deferred from any employer paid cash bonus shall be zero. Employee contributions are subject to Internal Revenue Code (the "IRC") limitations. The maximum contribution allowed by the Plan was $23,500 in 2025. Employees who are 50 years or older as of December 31, 2025 and reach either the maximum before-tax contribution limit of 75% or maximum contribution allowed by the Plan may make catch-up contributions. The catch-up contribution limit was $7,500 for 2025. Effective January, 2025, participants between the age 60 and 63 before the close of the applicable plan year, may contribute an additional "super" catch-up contribution. The "super" catch-up contribution limit was $3,750 for 2025.

The Company adopted the Safe Harbor Provision of the IRC. The Company contributes and allocates to each eligible participant's account a safe harbor matching contribution equal to 100% of elective salary deferrals up to the first 6% of compensation. The Company may also make a discretionary profit sharing contribution to participants who are employed at the end of the year and have 1,000 hours of service. The discretionary profit sharing contribution is divided among allocations groups as defined in the Plan document. Discretionary profit sharing contributions for the year ended December 31, 2025 were $3,034,249.

Any employee of the Company may roll over distributions made from a previous employer's qualified retirement plan into the Plan.

Participant Accounts.

Each participant's account is credited with the employee's contributions and an allocation of the Company's contributions, investment earnings and charged with an allocation of administrative expenses. Allocations are based on participants' earnings or account balances, as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account.

Vesting.

Participants have a fully vested, nonforfeitable right to employee and Company contributions.

Investment Options.

All employee and Company contributions are participant-directed among twenty-three investment funds and Berkshire Hathaway Class B common stock.

Payment of Benefits.

Withdrawals of employer contributions from the Plan by participants can be made at the Plan designated normal retirement (age 55), when a participant dies or becomes disabled. Distributions upon withdrawal are made in accordance with the Plan document. When a participant reaches the age of 59 1⁄2, the in-service distribution may occur from all vested accounts.

Hardship Distributions:

A participant may receive a hardship distribution from salary reduction contributions and rollover contributions if the distribution is: (1) on account of uninsured medical expenses incurred by the participant, their spouse or dependents; (2) to purchase (excluding mortgage payments) a principal residence of the participant; (3) for the payment of post-secondary tuition expenses for the participant,

their spouse or dependents; (4) needed to prevent eviction of the participant from his or her principal residence or foreclosure upon the mortgage of the participant's principal residence; (5) for burial or funeral expenses for the participant's parent, spouse, children or dependents; or, (6) for expenses for the repair of damage to the participant's principal residence caused by fire, storm, or other casualty.

Notes Receivable from Participants.

Participants may borrow from their fund accounts a minimum of $1,000 up to a maximum equal to the lesser of 50% of the participant's vested account balance or $50,000 reduced by the participant's highest outstanding note balance during the prior twelve-month period. Participants can have one note outstanding at a time. Participant notes are secured by the participant's account balance, and bear interest at a reasonable rate of interest which shall remain fixed throughout the duration of the note. All notes require that repayment be amortized in level payments, not less than quarterly, over a period not extending beyond five years from the date of the note or fifteen years for notes to acquire a principal residence. Notes receivable from participants are measured at their unpaid principal balance plus any accrued but unpaid interest. Delinquent notes receivable from participants are recorded as distributions upon liquidation of their account balance.

The framework for measuring fair value provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy under the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic No. 820, Fair Value Measurements, are described as follows:

The asset or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of relevant observable inputs and minimize the use of unobservable inputs.

Following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes in the methodologies used as of December 31, 2025 and 2024. These methodologies were consistently applied to all assets and liabilities of the Plan.

Mutual funds

Mutual funds - these investments are valued daily at the net asset value of shares or units held by the Plan based on the quoted market value of the underlying assets.

Collective investment trust

The collective investment trust is the Invesco Stable Value Trust (Class III). Invesco Stable Value Trust (the "Trust") is a collective trust that has entered into fully benefit-responsive guaranteed investment contracts and wrapper contracts with banks, insurance companies and other financial institutions, designed to provide principal stability, competitive yields, and liquidity. The Trust is valued at the net asset value of units of the Invesco Stable Value Trust, as reported by the investment managers of the Trust and as supported by unit prices of actual purchase and sale transactions occurring as of or close to the financial statement date resulting in a readily determinable fair value. Participant transactions and redemptions (purchases and sales) may occur daily.

Common stock

The common stock of the Parent is an investment option in the Plan. Berkshire Hathaway common stock trades on an active market. This investment option also includes a cash component that accounts for the purchase and sale of fractional shares.

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the valuation methods are considered appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

The volume submitter plan adopted by the Company received its latest favorable opinion letter dated June 30, 2020 stating that the Plan is qualified under Section 401(a) of the IRC and, therefore, the related trust is exempt from taxation. Once qualified, the Plan is required to operate in conformity with the IRC to maintain its qualification.

Management evaluates tax positions taken by the Plan and recognizes 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 Internal Revenue Service. The Plan sponsor has

analyzed the tax positions taken by the Plan and has concluded that as of December 31, 2025, 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.

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. Upon termination, all Plan assets would be distributed accordingly.

The Plan holds investments in the common stock of the Parent. Transactions in this investment qualify as party-in-interest transactions, which are exempt from the prohibited transaction rules. Certain Plan investments are funds managed by Fidelity Investments, the trustee of the Plan. Transactions associated with these investments qualify as party-in-interest transactions, which are exempt from the prohibited transaction rules. The Plan also engages in transactions with participants related to notes receivable, which are party-in-interest transactions with respect to Plan.

EIN: 73-6091775 Plan Number: 001

Schedule H, Line 4i - Schedule of AssetS (Held at End of Year)

December 31, 2025