Welcome to our dedicated page for BRK SEC filings (Ticker: BRK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page provides access to Berkshire Hathaway Inc. (BRK.A, BRK.B) SEC filings, offering detailed insight into the company’s diversified activities in insurance and reinsurance, utilities and energy, freight rail transportation, manufacturing, services and retailing. Filings are sourced directly from the EDGAR system and organized so investors can review both headline events and underlying documentation.
Through Berkshire’s Form 8-K reports, users can track material developments such as quarterly and year‑to‑date earnings releases, leadership appointments and retirements, amendments to By‑Laws, and significant financing transactions. For example, recent 8-K filings describe the separation of the Chairman and Chief Executive Officer roles, the appointment of Greg Abel as President and CEO, and the planned transition in the Chief Financial Officer position.
Berkshire’s filings also detail its capital structure. Registration statements and related 8-Ks outline the issuance of senior notes under a shelf registration, including yen‑denominated notes with maturities extending to 2040. Other filings list the company’s securities registered under Section 12(b), including Class A and Class B common stock and multiple series of senior notes traded on the New York Stock Exchange.
Investors reviewing Berkshire’s periodic reports, such as Form 10-Q referenced in earnings releases, can analyze segment-level operating earnings, the impact of investment gains and losses, and disclosures about insurance float. Stock Titan’s interface surfaces these filings alongside AI-powered summaries that explain key sections, highlight segment performance, and clarify technical disclosures, helping readers interpret complex accounting topics without replacing the full text.
In addition, this filings page is a convenient entry point for monitoring Berkshire’s governance documents, such as amended By‑Laws, and for following how major transactions and financing activities are documented across the company’s SEC submissions.
Berkshire Hathaway filed a Form 13F reporting institutional holdings valued at $274,160,086,701. The filing lists 110 reported positions and identifies 14 other included managers affiliated with Berkshire Hathaway. Marc D. Hamburg signed the report on behalf of the reporting manager.
FMR LLC and Abigail P. Johnson report beneficial ownership of 24,558 shares of Berkshire Hathaway Class A common stock, representing 4.7% of the class as of an event date of December 31, 2025.
FMR LLC holds sole voting power over 24,547 shares and sole dispositive power over 24,558 shares, while Johnson has sole dispositive power over 24,558 shares. The holding is reported as ownership of 5 percent or less of the class. One or more other persons may receive dividends or sale proceeds from these shares, but no such person has an interest exceeding five percent of the outstanding Class A stock. The securities are certified as acquired and held in the ordinary course of business and not for the purpose of changing or influencing control of Berkshire Hathaway.
Berkshire Hathaway reports an update on its top leadership and compensation. As previously announced, on January 1, 2026, Greg Abel became the company’s President and Chief Executive Officer. Effective that same date, his annual cash salary increased to $25 million. This filing formally records the leadership role and associated cash pay level for the new CEO.
Berkshire Hathaway Inc. reported planned finance leadership changes. Marc D. Hamburg, Senior Vice President and Chief Financial Officer, will resign as CFO on June 1, 2026 and retire from Berkshire on June 1, 2027, after working with his successor to support a smooth transition. Berkshire announced that Charles C. Chang, age 57, will become Senior Vice President and Chief Financial Officer on June 1, 2026. Chang has served as Senior Vice President and Chief Financial Officer of Berkshire Hathaway Energy since October 1, 2024 and was a partner at PricewaterhouseCoopers starting in 2002. The company states there are no family relationships between Chang and Berkshire’s directors or executive officers and no related-party transactions over $120,000 since he joined BHE. Details of Chang’s compensation are not yet finalized and will be disclosed in a future amendment. Berkshire also issued a press release describing these leadership changes, filed as Exhibit 99.1.
Berkshire Hathaway Inc. reported that on November 20, 2025 it issued multiple yen-denominated senior notes under its Form S-3 shelf registration. The company sold ¥123,700,000,000 aggregate principal amount of 1.510% Senior Notes due 2028, ¥53,300,000,000 of 1.826% Senior Notes due 2030, ¥26,100,000,000 of 2.422% Senior Notes due 2035 and ¥7,000,000,000 of 2.810% Senior Notes due 2040. The notes were issued under an existing Indenture dated January 31, 2025 and were sold pursuant to an underwriting agreement with Mizuho Securities USA LLC and Merrill Lynch International. Detailed terms are provided in a November 14, 2025 prospectus supplement and the related base prospectus, which are incorporated by reference.
Berkshire Hathaway Inc. is conducting a primary debt offering of ¥210,100,000,000 of senior unsecured yen-denominated notes in four tranches: ¥123,700,000,000 of 1.510% notes due 2028, ¥53,300,000,000 of 1.826% notes due 2030, ¥26,100,000,000 of 2.422% notes due 2035, and ¥7,000,000,000 of 2.810% notes due 2040. The notes price at 100% of principal, with underwriting discounts ranging from 0.10% to 0.40%, resulting in gross proceeds to Berkshire of ¥209,803,100,000 before expenses. Interest is paid in yen semi-annually on May 29 and November 29, starting May 29, 2026, with principal also payable in yen, subject to a U.S. dollar payment fall-back if yen is unavailable. Berkshire expects to use the net proceeds for general corporate purposes, including refinancing its 2025 Senior Notes. The notes are senior unsecured obligations ranking pari passu with other senior unsecured debt, will not be listed on an exchange, and may have limited trading liquidity. The filing highlights risks including interest rate changes, lack of a trading market, and foreign currency exposure for non-yen investors.
Berkshire Hathaway (BRK) reported an insider transaction by Chairman and CEO Warren E. Buffett on 11/10/2025. He converted 1,800 shares of Class A into 2,700,000 shares of Class B (Code C) and then made gifts totaling 2,700,000 Class B shares (Code G) to charitable organizations, each at a reported price of $0.00 per entry.
Following these transactions, Buffett beneficially owned 1,114 Class B shares directly and 196,317 Class A shares directly, as shown in the filing’s post-transaction balances.
Berkshire Hathaway Inc. — Schedule 13D/A reports Warren E. Buffett’s updated beneficial ownership. He holds 196,317 shares of Class A Common Stock and 1,114 shares of Class B Common Stock. This equals approximately 37.7% of Class A outstanding, 29.8% of the aggregate voting power of both classes, and 13.6% of the economic interest across both classes.
On November 10, 2025, Mr. Buffett converted 1,800 Class A shares into 2,700,000 Class B shares. On the same date, he donated 1,500,000 Class B shares to the Susan Thompson Buffett Foundation and 400,000 Class B shares to each of the Sherwood Foundation, the Howard G. Buffett Foundation, and the NoVo Foundation.
Berkshire Hathaway Inc. director Charlotte Guyman reported share changes on 11/03/2025. She converted 1 share of Class A into 1,500 shares of Class B at $0.00, then made charitable gifts totaling 410 Class B shares (82 shares to each of five organizations). Following these transactions, she directly owned 3,462 Class B shares.
The filing notes that each Class A share is convertible at any time into 1,500 Class B shares.