Company · CIK 0001067983 · SIC 6331 — Fire, Marine & Casualty Insurance · NYSE
BERKSHIRE HATHAWAY INC · BRK.A
Insider activity reported against this company. All insider holders · Files at: LEN, DVA, DAL, AXTA, PSX, FWONA, WFC, VRSN and 2 more. On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 GForm 4 → | Sep 4, 6:19 pm EDT | Ajit JainVice Chairman, Director | 10 | — | — | 317 | — | |
| Aug 12, 2026 PForm 4 → | Aug 13, 5:06 pm EDT | Michael J. O'SullivanSee Remarks | 488 | $512.44 | $250,072 | 1,151 | +73.6% | |
| Jul 14, 2026 CGForm 4 → | Jul 15, 4:32 pm EDT | Warren E BuffettDirector, 10% Owner | 24,000,000 | — | — | 1,162 | — | |
| Jul 1, 2026 GForm 4 → | Jul 2, 2:33 pm EDT | Ajit JainVice Chairman, Director | 3 | — | — | 327 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 PForm 4 → | Aug 13, 5:00 pm EDT | Charles C ChangSee Remarks | 2 | $765,187.06 | $1,530,374 | 8 | — | |
| Jul 14, 2026 CForm 4 → | Jul 15, 4:32 pm EDT | Warren E BuffettDirector, 10% Owner | 8,000 | — | — | 188,290 | — |
Filed by this entity as an insider elsewhere — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 PForm 4 → | Sep 25, 8:02 pm EDT | LENNAR CORP /NEW/LEN | 1,679,700 | $81.19 | $136,382,789 | 548,892 | — | |
| Sep 17, 2026 PForm 4 → | Sep 21, 9:31 pm EDT | LENNAR CORP /NEW/LEN, LEN.B | 2,743,529 | $77.42 | $212,395,151 | 528,217 | — | |
| Jul 31, 2026 SForm 4 → | Aug 4, 5:27 pm EDT | DAVITA INC.DVA | 182,980 | $199.55 | $36,513,293 | 28,697,229 | −0.63% |
Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.