Here are the Form 4 insider transactions from Berkshire Hathaway Inc. (BRK.A) in our archive over the last 12 months, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow BRK.A and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full BRK.A filings page.
Berkshire Hathaway Vice Chairman Ajit Jain made charitable gifts totaling 19 Class B shares on October 21, 2026. His direct Class B holding after the gift was 298 shares. The reported holdings also include 61 Class A shares held directly, Class A shares held through family trusts and Jain Foundation Inc., and 67,608 Class B shares held by Jain Foundation Inc.
Berkshire Hathaway Inc. Vice Chairman Ajit Jain reported that Jain Foundation, Inc., a non-profit corporation, sold 39,700 Class B shares on September 28, 2026, at an average price of $503.092592 per share. After the sale, the foundation held 67,608 Class B shares and 50 Class A shares. Jain directly held 317 Class B shares and 61 Class A shares; separate family trusts established by his spouse and by Jain held 17 and 38 Class A shares, respectively.
Berkshire Hathaway Inc. (BRK-A), identified as a 10% owner reporting person, reported indirect purchases of 1,679,700 Lennar Corporation Class A and Class B common shares across nine transactions from September 23 through September 25, 2026. Warren E. Buffett, also identified as a 10% owner reporting person, was named alongside Berkshire. Footnotes attribute the holdings to Berkshire subsidiaries and state that Buffett disclaims beneficial ownership except to the extent of his pecuniary interest. The reported prices are weighted averages for multiple purchases.
BERKSHIRE HATHAWAY INC (BRK) director and Vice Chairman Ajit Jain reported making a bona fide charitable gift of 10 shares of Class B Common Stock on September 3, 2026, leaving him with 317 Class B shares held directly.
He also holds 61 shares of Class A Common Stock directly, which are stated as convertible into 91,500 Class B shares, and additional Class A shares are held indirectly through family trusts and the Jain Foundation, Inc., a non-profit corporation. The Jain Foundation, Inc. also holds 107,308 Class B shares indirectly attributed to him. No Rule 10b5-1 trading plan is indicated.
BERKSHIRE HATHAWAY INC insider Michael J. O'Sullivan, Senior Vice President, General Counsel and Secretary, reported three open-market purchases of Class B common stock on August 12, 2026. A living trust for which he serves as trustee acquired a total of 488 shares in indirect ownership. The trades were executed at weighted average prices of $510.64 for 45 shares, $512.52 for 400 shares, and $513.61 for 43 shares, each reflecting multiple transactions within narrow price ranges. The filing indicates these transactions were not made pursuant to a Rule 10b5-1 trading plan.
BERKSHIRE HATHAWAY INC executive Charles C. Chang, Senior Vice President and Chief Financial Officer, reported two open-market purchases of Class A Common Stock on August 12, 2026. An entity controlled by Chang and his spouse acquired 2 shares in total, at prices around $765,000 per share. Each Class A share is convertible at any time into 1,500 Class B shares.
Berkshire Hathaway Inc. director and major shareholder Warren E. Buffett reported non-market transactions involving the company’s stock. On July 14, 2026 he converted 8,000 shares of Class A Common Stock into 12,000,000 shares of Class B Common Stock, using the stated 1,500-to-1 conversion ratio. On the same date he made bona fide gifts totaling 12,000,000 Class B shares to charitable organizations. After these transactions, he directly holds 188,290 Class A shares and 12,001,162 Class B shares, with no open-market purchases or sales reported.
Ajit Jain, Vice Chairman of Berkshire Hathaway, reported a small charitable gift of stock. On July 1, he made charitable gifts totaling 3 shares of Class B Common Stock as a bona fide gift, leaving 327 Class B shares held directly.
He also reports substantial indirect and derivative interests. Jain Foundation Inc., a non-profit corporation, holds 107,308 shares of Class B Common Stock indirectly for him, and related Class A positions are convertible into underlying Class B shares through various direct and family trust holdings.
Berkshire Hathaway director Warren E. Buffett reported a bona fide gift of 160 shares of Class B Common Stock on May 22, 2026. The filing states this was a gift to a charitable organization. After the transaction, he directly held 1,162 Class B shares. The Form 4 also includes a Class A Common Stock entry with zero shares shown following the transaction, with a footnote explaining that each Class A share is convertible into 1,500 Class B shares and that Class A holdings are reported in the derivative table.
Berkshire Hathaway director Warren E. Buffett reported a set of internal share moves involving Class A and Class B stock. He converted 25 shares of Class A Common Stock into 37,500 shares of Class B Common Stock, consistent with the 1-for-1,500 conversion ratio.
On the same date, he made two bona fide gifts of Class B Common Stock totaling 37,292 shares to charitable organizations at no consideration. After these transactions, Buffett directly held 196,290 Class A shares and 1,322 Class B shares.
Berkshire Hathaway Inc. director Charlotte Guyman reported a charitable-style transfer of Class B Common Stock. On May 14, 2026, she made a bona fide gift of 574 shares of Class B common stock, recorded with no sale price.
The footnote explains this consisted of gifts of 82 shares each to seven individuals. After these gifts, Guyman still directly owns 2,888 shares of Berkshire Hathaway Class B stock. This is a personal share transfer rather than a market sale, so it does not reflect open-market trading activity.
Berkshire Hathaway officer Michael J. O'Sullivan reported two indirect open-market purchases of Class B Common Stock through a living trust of which he is trustee. The trust bought a total of 536 shares, including 53 shares at $470.22 per share and 483 shares at a weighted average price of $467.13 per share, with those shares acquired in multiple trades between $467.07 and $467.20 per share.
Berkshire Hathaway vice chairman Ajit Jain reported a charitable gift of 22 shares of Class B Common Stock on March 27, coded as a bona fide gift. After the donation, he directly holds 330 Class B shares.
He also has direct derivative holdings convertible into 91,500 Class B shares through Class A stock, and indirect derivative holdings convertible into 25,500, 57,000, and 75,000 Class B shares via family trusts and the Jain Foundation. In addition, the Jain Foundation indirectly holds 107,308 Class B shares. The filing mainly updates these positions and reflects a small, non-market gift transfer rather than a sale.
Berkshire Hathaway chairman and CEO Warren E. Buffett reported a bona fide gift of 2 shares of Class A Common Stock on March 17, 2026. The gift was made to a charitable organization at a stated price of $0 per share, so it was not a market sale.
After the gift, Buffett directly holds 196,315 shares of Class A Common Stock and 1,114 shares of Class B Common Stock. The filing notes that each Class A share is convertible at any time into 1,500 shares of Class B Common Stock at the holder’s option.
Berkshire Hathaway Inc. reported insider transactions showing that the Gregory E. Abel Revocable Trust, for the benefit of his family, made a series of open-market purchases of Class A Common Stock. On March 4, 2026, the trust bought a total of 21 Class A shares in multiple trades at prices ranging from $725,210.19 to $733,300.00 per share, increasing its indirect holdings from 228 to 249 Class A shares. The filing also notes indirect ownership of 2,289 Class B shares held by the same trust and 74 Class B shares held by the reporting person’s spouse as custodian for a minor child.
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.