Warren E. Buffett - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Warren E. Buffett has filed 3 SEC Form 4 filings across 1 company in the last 90 days.
Profile
Warren E. Buffett is a corporate insider at BERKSHIRE HATHAWAY INC (BRK.A). Buffett has reported 13 insider filings with the SEC since 2024. The most recent filing was in July 2026.
| Role | Insider |
|---|---|
| Notability | 45/100 |
| Links | Wikipedia |
Board memberships
- BERKSHIRE HATHAWAY INC
Awards & honors
- Chairman and CEO of Berkshire Hathaway
- Pioneered value investing
- Philanthropic efforts through the Giving Pledge
Trading Pattern
InsiderAlpha's records for Warren E. Buffett go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Warren E. Buffett has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Insider at BERKSHIRE HATHAWAY INC (BRK.A) - 3 filings, 2026
- Chairman and CEO at BERKSHIRE HATHAWAY INC (BRK.A) - 8 filings, 2024 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-15 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 1.00M | $0.00 | |
| 2026-07-15 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 1.00M | $0.00 | |
| 2026-07-15 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 1.00M | $0.00 | |
| 2026-07-15 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 9.00M | $0.00 | |
| 2026-07-15 | BRK.A | BERKSHIRE HATHAWAY INC | J - Other acquisition / disposition | 12.00M | $0.00 | |
| 2026-05-26 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 160 | $0.00 | |
| 2026-05-20 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 18.6K | $0.00 | |
| 2026-05-20 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 18.6K | $0.00 | |
| 2026-05-20 | BRK.A | BERKSHIRE HATHAWAY INC | J - Other acquisition / disposition | 37.5K | $0.00 | |
| 2025-11-12 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 400.0K | $0.00 | |
| 2025-11-12 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 400.0K | $0.00 | |
| 2025-11-12 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 400.0K | $0.00 | |
| 2025-11-12 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 1.50M | $0.00 | |
| 2025-11-12 | BRK.A | BERKSHIRE HATHAWAY INC | J - Other acquisition / disposition | 2.70M | $0.00 | |
| 2025-07-14 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 30 | $0.00 | |
| 2025-06-30 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 660.4K | $0.00 | |
| 2025-06-30 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 660.4K | $0.00 | |
| 2025-06-30 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 660.4K | $0.00 | |
| 2025-06-30 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 943.4K | $0.00 | |
| 2025-06-30 | BRK.A | BERKSHIRE HATHAWAY INC | G - Bona-fide gift | 9.43M | $0.00 |
Companies - Last 90 Days
- BERKSHIRE HATHAWAY INC (BRK.A) - 3 filings, last 2026-07-15
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Warren E. Buffett has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Gregory E. Abel - $15.31M of BRK.A open-market activity in the last 12 months
- Ajit Jain - $929K of BRK.A open-market activity in the last 12 months
- Michael J. O'Sullivan - $251K of BRK.A open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Kelcy L. Warren
- V. Prem Et Al Watsa
- Alan Waxman
- Patrick Whitesell
- Gregg Williams
- Stephen T. Wills
- WINMILL CO. INC
- Caroline Young
Frequently Asked Questions
Who is Warren E. Buffett?
Warren E. Buffett is a corporate insider at BERKSHIRE HATHAWAY INC (BRK.A). Buffett has reported 13 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Warren E. Buffett submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Where can I see all of Warren E. Buffett's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Warren E. Buffett profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.