| Mon, 28 Sep 2026 | Jain Ajit | director, officer: Vice Chairman | S-Sale | 39,700 | $19.97M |
| Thu, 3 Sep 2026 | Jain Ajit | director, officer: Vice Chairman | G-Gift | 10 | — |
| Wed, 12 Aug 2026 | O'Sullivan Michael J. | officer: See Remarks | P-Purchase | 45 | $22.98K |
| Wed, 12 Aug 2026 | O'Sullivan Michael J. | officer: See Remarks | P-Purchase | 400 | $205.01K |
| Wed, 12 Aug 2026 | O'Sullivan Michael J. | officer: See Remarks | P-Purchase | 43 | $22.09K |
| Wed, 12 Aug 2026 | Chang Charles C | officer: See Remarks | P-Purchase | 1 | $0 |
| Tue, 14 Jul 2026 | BUFFETT WARREN E | director, 10 percent owner | G-Gift | 1,000,000 | $0 |
| Tue, 14 Jul 2026 | BUFFETT WARREN E | director, 10 percent owner | G-Gift | 9,000,000 | $0 |
| Tue, 14 Jul 2026 | BUFFETT WARREN E | director, 10 percent owner | C-Conversion | 12,000,000 | $0 |
| Wed, 1 Jul 2026 | Jain Ajit | director, officer: Vice Chairman | G-Gift | 3 | — |
| Fri, 22 May 2026 | BUFFETT WARREN E | director, 10 percent owner | G-Gift | 160 | $0 |
| Mon, 18 May 2026 | BUFFETT WARREN E | director, 10 percent owner | G-Gift | 18,646 | $0 |
| Mon, 18 May 2026 | BUFFETT WARREN E | director, 10 percent owner | C-Conversion | 37,500 | $0 |
| Thu, 14 May 2026 | GUYMAN CHARLOTTE | director | G-Gift | 574 | $0 |
| Fri, 27 Mar 2026 | Jain Ajit | director, officer: Vice Chairman | G-Gift | 22 | — |
| Mon, 10 Nov 2025 | BUFFETT WARREN E | director, officer, 10 percent owner: Chairman and CEO | G-Gift | 400,000 | $0 |
| Mon, 10 Nov 2025 | BUFFETT WARREN E | director, officer, 10 percent owner: Chairman and CEO | C-Conversion | 2,700,000 | $0 |
| Mon, 10 Nov 2025 | BUFFETT WARREN E | director, officer, 10 percent owner: Chairman and CEO | G-Gift | 1,500,000 | $0 |
| Mon, 3 Nov 2025 | GUYMAN CHARLOTTE | director | G-Gift | 410 | $0 |
| Mon, 3 Nov 2025 | GUYMAN CHARLOTTE | director | C-Conversion | 1,500 | $0 |
| Wed, 22 Oct 2025 | Jain Ajit | director, officer: Vice Chairman | G-Gift | 32 | — |