Berkshire Hathaway (BRK.B) — insider trading
Financials
Berkshire Hathaway (BRK.B) has 39 reported SEC Form 4 insider transactions in our data, including 20 open-market purchases and 10 open-market sales among the most recent 39 (latest 2026-07-01).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-01 | Jain Ajit | Director, Officer (Vice Chairman) | Bona fide gift | 3 | — | — | Form 4 |
| 2026-05-22 | BUFFETT WARREN E | Director, 10% owner | Bona fide gift | 160 | $0.00 | $0 | Form 4 |
| 2026-05-18 | BUFFETT WARREN E | Director, 10% owner | Conversion of derivative (derivative) | 25 | — | — | Form 4 |
| 2026-05-18 | BUFFETT WARREN E | Director, 10% owner | Bona fide gift | 18,646 | $0.00 | $0 | Form 4 |
| 2026-05-18 | BUFFETT WARREN E | Director, 10% owner | Bona fide gift | 18,646 | $0.00 | $0 | Form 4 |
| 2026-05-18 | BUFFETT WARREN E | Director, 10% owner | Conversion of derivative | 37,500 | $0.00 | $0 | Form 4 |
| 2026-05-14 | GUYMAN CHARLOTTE | Director | Bona fide gift | 574 | $0.00 | $0 | Form 4 |
| 2026-05-06 | O'Sullivan Michael J. | Officer (See Remarks) | Open-market purchase | 53 | $470.22 | $24.9K | Form 4 |
| 2026-05-06 | O'Sullivan Michael J. | Officer (See Remarks) | Open-market purchase | 483 | $467.13 | $225.6K | Form 4 |
| 2026-05-01 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 1,220,376 | $149.84 | $182.86M | Form 4 |
| 2026-03-27 | Jain Ajit | Director, Officer (Vice Chairman) | Bona fide gift | 22 | — | — | Form 4 |
| 2026-03-17 | BUFFETT WARREN E | Director, Officer (Chairman and CEO), 10% owner | Bona fide gift (derivative) | 2 | — | — | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $733,300.00 | $733.3K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $733,100.00 | $733.1K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $732,500.00 | $732.5K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 2 | $732,000.00 | $1.46M | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $731,349.99 | $731.3K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $730,707.01 | $730.7K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $730,700.00 | $730.7K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $730,145.00 | $730.1K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $729,000.00 | $729.0K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 2 | $727,530.26 | $1.46M | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $727,453.25 | $727.5K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 2 | $727,185.00 | $1.45M | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $726,994.76 | $727.0K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $726,407.57 | $726.4K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $726,079.01 | $726.1K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $725,999.99 | $726.0K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $725,995.00 | $726.0K | Form 4 |
| 2026-03-04 | Abel Gregory E. | Director, Officer (See Remarks) | Open-market purchase (derivative) | 1 | $725,210.19 | $725.2K | Form 4 |
| 2026-01-16 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 7,685 | $83.72 | $643.4K | Form 4 |
| 2026-01-15 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 18,125 | $84.04 | $1.52M | Form 4 |
| 2026-01-14 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 59,411 | $83.79 | $4.98M | Form 4 |
| 2026-01-13 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 30,643 | $82.78 | $2.54M | Form 4 |
| 2026-01-12 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 66,568 | $83.27 | $5.54M | Form 4 |
| 2026-01-09 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 18,689 | $82.40 | $1.54M | Form 4 |
| 2026-01-08 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 65,071 | $82.25 | $5.35M | Form 4 |
| 2026-01-07 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 44,100 | $81.22 | $3.58M | Form 4 |
| 2026-01-06 | BERKSHIRE HATHAWAY INC; BUFFETT WARREN E | 10% owner | Open-market sale | 20,226 | $83.48 | $1.69M | Form 4 |
Ask the chat about BRK.B's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Berkshire Hathaway (BRK.B).
Last updated 2026-07-01 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.