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.
Finding Warren Buffett’s latest thoughts or BNSF freight numbers inside Berkshire Hathaway’s 300-plus page filings can feel overwhelming. Each quarter the conglomerate folds insurance float calculations, railroad carload data, and dozens of subsidiary footnotes into one dense report. If you have ever asked “How do I read the Berkshire Hathaway quarterly earnings report 10-Q filing?” this page is built for you.
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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.
Berkshire Hathaway Inc. filed a Form 8-K to furnish its earnings press release for the third quarter and first nine months ended September 30, 2025. The company states that a copy of the press release is included as Exhibit 99.1 to this report. The filing also lists the company’s registered securities, including Class A and Class B common stock and multiple senior notes due between 2027 and 2059.
The 8-K identifies November 1, 2025 as the date of the reported event and is signed by CFO Marc D. Hamburg.
Berkshire Hathaway reported third-quarter results with total revenues of $94,972 million and net earnings attributable to Berkshire shareholders of $30,796 million. Earnings reflected investment gains of $21,939 million, which, as the company notes, can meaningfully affect interim results given equity price volatility.
Insurance and Other generated insurance premiums earned of $22,445 million, sales and service revenues of $51,011 million, and leasing revenues of $2,513 million. Railroad, Utilities and Energy delivered freight rail revenues of $5,986 million and utility and energy operating revenues of $6,046 million. Costs and expenses totaled $79,136 million in the quarter.
Liquidity remained strong with cash and cash equivalents of $72,156 million and short‑term investments in U.S. Treasury Bills of $305,367 million as of September 30, 2025. Equity securities were carried at $283,241 million. Shareholders’ equity was $700,441 million. Per‑share results were $21,413 per equivalent Class A share and $14.28 per equivalent Class B share.
Berkshire Hathaway’s vice chairman and director Ajit Jain filed a Form 4 reporting a charitable gift of 32 shares of Class B Common Stock on October 22, 2025 (transaction code G). Following the transaction, he directly holds 352 Class B shares, with an additional 107,308 Class B shares held indirectly by Jain Foundation Inc.
The filing also lists Class A holdings that are convertible into Class B: 1 Class A share converts into 1,500 Class B shares. Disclosed positions include Class A shares held directly and through family trusts and the foundation, corresponding to 91,500, 25,500, 57,000, and 75,000 Class B share equivalents.
