The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 27, 2026 | Jain Ajit | Vice Chairman, Director | Gift(G) | 22 | — | — |
| Mar 17, 2026 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 2 | — | — |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $725,210.19 | $725K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $733,300.00 | $733K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $725,999.99 | $726K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $726,079.01 | $726K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $726,407.57 | $726K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $726,994.76 | $727K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 2 | $727,185.00 | $1.5M |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $727,453.25 | $727K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 2 | $727,530.26 | $1.5M |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $729,000.00 | $729K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $730,145.00 | $730K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $730,700.00 | $731K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $730,707.01 | $731K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $731,349.99 | $731K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 2 | $732,000.00 | $1.5M |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $732,500.00 | $733K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $733,100.00 | $733K |
| Mar 4, 2026 | Abel Gregory E. | See Remarks, Director | Buy(P) | 1 | $725,995.00 | $726K |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 400K | — | $0 |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 400K | — | $0 |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 1.5M | — | $0 |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2.7M | — | $0 |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 400K | — | $0 |
| Nov 10, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2K | — | — |
| Nov 3, 2025 | Guyman Charlotte | Director | Conversion(C) | 2K | — | $0 |
| Nov 3, 2025 | Guyman Charlotte | Director | Gift(G) | 410 | — | $0 |
| Nov 3, 2025 | Guyman Charlotte | Director | Conversion(C) | 1 | — | — |
| Oct 22, 2025 | Jain Ajit | Vice Chairman, Director | Gift(G) | 32 | — | — |
| Sep 26, 2025 | Jain Ajit | Vice Chairman, Director | Sell(S) | 15K | — | — |
| Sep 24, 2025 | Jain Ajit | Vice Chairman, Director | Gift(G) | 32 | — | — |
| Aug 8, 2025 | Jain Ajit | Vice Chairman, Director | Sell(S) | 2K | $464.73 | $929K |
| Jul 14, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 30 | — | $0 |
| Jun 30, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 660K | — | $0 |
| Jun 30, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 9.4M | — | $0 |
| Jun 30, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 943K | — | $0 |
| Jun 30, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 660K | — | $0 |
| Jun 30, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 660K | — | $0 |
| Jun 27, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 12.4M | — | $0 |
| Jun 27, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 8K | — | — |
| May 14, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 22 | — | $0 |
| May 13, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 1K | — | $0 |
| May 13, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2K | — | $0 |
| May 13, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 1 | — | — |
| Apr 9, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 160 | — | $0 |
| Apr 7, 2025 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 2 | — | — |
| Apr 2, 2025 | Jain Ajit | Vice Chairman, Director | Gift(G) | 10 | — | — |
| Mar 19, 2025 | Guyman Charlotte | Director | Gift(G) | 1K | — | $0 |
| Mar 14, 2025 | Jain Ajit | Vice Chairman, Director | Gift(G) | 10 | — | — |
| Jan 16, 2025 | Jain Ajit | Vice Chairman, Director | Gift(G) | 3 | — | — |
| Dec 31, 2024 | Guyman Charlotte | Director | Sell(S) | 1 | $678,064.00 | $678K |
| Dec 24, 2024 | Guyman Charlotte | Director | Gift(G) | 247 | — | $0 |
| Dec 9, 2024 | Guyman Charlotte | Director | Gift(G) | 84 | — | $0 |
| Dec 9, 2024 | Guyman Charlotte | Director | Gift(G) | 84 | — | $0 |
| Dec 9, 2024 | Guyman Charlotte | Director | Gift(G) | 84 | — | $0 |
| Dec 9, 2024 | Guyman Charlotte | Director | Gift(G) | 84 | — | $0 |
| Dec 4, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 6K | — | $0 |
| Dec 3, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 6K | — | $0 |
| Dec 3, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 4 | — | — |
| Nov 25, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 25, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 25, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 1.5M | — | $0 |
| Nov 25, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2.4M | — | $0 |
| Nov 25, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 20, 2024 | Jain Ajit | Vice Chairman, Director | Gift(G) | 4 | — | — |
| Nov 5, 2024 | Guyman Charlotte | Director | Conversion(C) | 3K | — | $0 |
| Nov 5, 2024 | Guyman Charlotte | Director | Conversion(C) | 2 | — | $0 |
| Sep 12, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 10 | — | $0 |
| Sep 12, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 10 | — | $0 |
| Sep 12, 2024 | Jain Ajit | Vice Chairman, Director | Gift(G) | 23 | — | — |
| Sep 9, 2024 | Jain Ajit | Vice Chairman, Director | Sell(S) | 200 | $695,417.65 | $139.1M |
| Jul 2, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 1K | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 695K | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 695K | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 695K | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 993K | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 13.0M | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 9.9M | — | $0 |
| Jun 28, 2024 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 9K | — | — |
| May 15, 2024 | Jain Ajit | Vice Chairman, Director | Gift(G) | 25 | — | — |
| Jan 12, 2024 | Jain Ajit | Vice Chairman, Director | Gift(G) | 28 | — | — |
| Dec 14, 2023 | Guyman Charlotte | Director | Gift(G) | 105 | — | $0 |
| Dec 14, 2023 | Guyman Charlotte | Director | Gift(G) | 65 | — | $0 |
| Dec 14, 2023 | Guyman Charlotte | Director | Gift(G) | 98 | — | $0 |
| Dec 12, 2023 | Guyman Charlotte | Director | Gift(G) | 113 | — | $0 |
| Dec 12, 2023 | Guyman Charlotte | Director | Gift(G) | 16 | — | $0 |
| Dec 12, 2023 | Guyman Charlotte | Director | Gift(G) | 148 | — | $0 |
| Nov 25, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2K | — | — |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2.4M | — | $0 |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 1.5M | — | $0 |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Gift(G) | 300K | — | $0 |
| Nov 21, 2023 | Buffett Warren E | Chairman and CEO, Director, 10% Owner | Conversion(C) | 2K | — | — |
| Nov 8, 2023 | Jain Ajit | Vice Chairman, Director | Gift(G) | 3 | — | — |
| Oct 27, 2023 | Guyman Charlotte | Director | Conversion(C) | 2K | — | $0 |
| Oct 27, 2023 | Guyman Charlotte | Director | Conversion(C) | 1 | $503,375.00 | $503K |
| Oct 23, 2023 | Jain Ajit | Vice Chairman, Director | Gift(G) | 75 | — | — |
| Oct 5, 2023 | Munger Charles T | Vice Chairman, Director | Gift(G) | 77 | — | — |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).