1 insiders reported 5 Form 4 transactions for BERKSHIRE HATHAWAY INC (BRK.B) over the past 18 months (most recent 2026-08-13). Recent activity: O'Sullivan Michael J. (Senior Vice President, General Counsel and Secretary) Buy 45 shares, O'Sullivan Michael J. (Senior Vice President, General Counsel and Secretary) Buy 400 shares, O'Sullivan Michael J. (Senior Vice President, General Counsel and Secretary) Buy 43 shares, O'Sullivan Michael J. (Senior Vice President, General Counsel and Secretary) Buy 483 shares, O'Sullivan Michael J. (Senior Vice President, General Counsel and Secretary) Buy 53 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | O'Sullivan Michael J. | Senior Vice President, General Counsel and Secretary | Buy | 45 | $22,979 |
| 2026-08-13 | O'Sullivan Michael J. | Senior Vice President, General Counsel and Secretary | Buy | 400 | $205,008 |
| 2026-08-13 | O'Sullivan Michael J. | Senior Vice President, General Counsel and Secretary | Buy | 43 | $22,085 |
| 2026-05-06 | O'Sullivan Michael J. | Senior Vice President, General Counsel and Secretary | Buy | 483 | $225,624 |
| 2026-05-06 | O'Sullivan Michael J. | Senior Vice President, General Counsel and Secretary | Buy | 53 | $24,922 |
来源：SEC Form 4 申报文件 · 截至 2026-08-13