BRK-AUnknown
BERKSHIRE HATHAWAY INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for BERKSHIRE HATHAWAY INC (BRK-A), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are BRK-A insiders buying or selling?
In the last 12 months, BERKSHIRE HATHAWAY INC insiders reported 2 open-market purchases ($500.6K) and 1 sale ($20.0M) — net selling of $19.5M. Since May 2018, Trabud has recorded 25 Form 4 filings for BRK-A: 9 buys ($72.6M) and 16 sells ($47.1M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $250.5K by Michael J. O'Sullivan (Senior Vice President, General Counsel and Secretary) on May 6, 2026. SEC ↗
- The most recent open-market purchase was reported on Aug 13, 2026 (2 months ago).
Key Statistics (May 2018 – Sep 29, 2026)
Total Form 4 filings
25
SEC EDGAR
Insider filers
5
Insider buys (9)
$72.6M
Insider sells (16)
$47.1M
Insider sentiment
Net buyingNet insider flow of $25.5M in net buying since May 2018, and $19.5M in net selling over the last 12 months. 1 insider buy in the last 90 days.
Recent BRK-A insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 29, 2026 | Ajit Jain | Vice Chairman | Sale | 39.7K | $503.09 | $20.0M | SEC ↗ |
| Aug 13, 2026 | Michael J. O'Sullivan | Senior Vice President, General Counsel and Secretary | Purchase | 488 | $512.44 | $250.1K | SEC ↗ |
| May 6, 2026 | Michael J. O'Sullivan | Senior Vice President, General Counsel and Secretary | Purchase | 536 | $467.44 | $250.5K | SEC ↗ |
| Sep 27, 2025 | Ajit Jain | Vice Chairman | Sale | 15.0K | $0.00 | $0 | SEC ↗ |
| Aug 8, 2025 | Ajit Jain | Vice Chairman | Sale | 2.0K | $464.73 | $929.5K | SEC ↗ |
| Mar 5, 2025 | WITMER MERYL B | Director | Sale | 2 | $775883.30 | $1.6M | SEC ↗ |
| Aug 10, 2023 | Ajit Jain | Vice Chairman | Sale | 28.0K | $362.55 | $10.2M | SEC ↗ |
| Mar 4, 2023 | Ajit Jain | Vice Chairman | Sale | 6.6K | $303.28 | $2.0M | SEC ↗ |
| Dec 1, 2022 | Ajit Jain | Vice Chairman | Sale | 4.0K | $313.40 | $1.3M | SEC ↗ |
| Oct 3, 2022 | Gregory Abel | Vice Chair | Purchase | 23 | $408005.87 | $9.4M | SEC ↗ |
| Oct 3, 2022 | Gregory Abel | Vice Chair | Purchase | 33 | $407470.40 | $13.4M | SEC ↗ |
| Oct 3, 2022 | Gregory Abel | Vice Chair | Purchase | 51 | $406616.08 | $20.7M | SEC ↗ |
| Oct 3, 2022 | Gregory Abel | Vice Chair | Purchase | 61 | $405942.34 | $24.8M | SEC ↗ |
| Sep 2, 2022 | Ajit Jain | Vice Chairman | Sale | 2.5K | $280.41 | $701.0K | SEC ↗ |
| Aug 1, 2022 | Ajit Jain | Vice Chairman | Sale | 3.4K | $293.17 | $1.0M | SEC ↗ |
| Jul 7, 2022 | Ronald L Olson | Director | Purchase | 2.4K | $274.35 | $661.2K | SEC ↗ |
| Jun 24, 2022 | Ajit Jain | Vice Chairman | Sale | 1.2K | $277.72 | $333.3K | SEC ↗ |
| Oct 29, 2021 | Ajit Jain | Vice Chairman | Sale | 7.2K | $287.54 | $2.1M | SEC ↗ |
| May 6, 2021 | Ajit Jain | Vice Chairman | Sale | 7.9K | $278.19 | $2.2M | SEC ↗ |
| Jan 6, 2021 | Ronald L Olson | Director | Purchase | 4.0K | $222.33 | $889.3K | SEC ↗ |
| Oct 2, 2020 | Ajit Jain | Vice Chairman | Sale | 7.0K | $213.00 | $1.5M | SEC ↗ |
| Jul 8, 2020 | Ajit Jain | Vice Chairman | Sale | 5.6K | $177.74 | $995.3K | SEC ↗ |
| May 19, 2020 | WITMER MERYL B | Director | Purchase | 1.0K | $2243.37 | $2.3M | SEC ↗ |
| Nov 9, 2018 | Ajit Jain | Vice Chairman | Sale | 5.7K | $219.69 | $1.3M | SEC ↗ |
| May 10, 2018 | Ajit Jain | Vice Chairman | Sale | 6.0K | $199.82 | $1.2M | SEC ↗ |
Showing the 25 most recent of 25 Form 4 filings for BERKSHIRE HATHAWAY INC.
Most active BRK-A insiders
- Ajit Jain15 filings
- Gregory Abel4 filings
- WITMER MERYL B2 filings
- Michael J. O'Sullivan2 filings
- Ronald L Olson2 filings
Ask anything about BRK-A insider activity
Use Trabud's AI agent to query BERKSHIRE HATHAWAY INC's Form 4 history in plain English — "Show me BRK-A CEO purchases this year" or compare it against any other ticker.
Open the AI agentBRK-A insider trading FAQ
Are BERKSHIRE HATHAWAY INC insiders buying or selling?
In the last 12 months, BERKSHIRE HATHAWAY INC insiders reported 2 open-market purchases ($500.6K) and 1 sale ($20.0M) — net selling of $19.5M. Since May 2018, Trabud has recorded 25 Form 4 filings for BRK-A: 9 buys ($72.6M) and 16 sells ($47.1M). Over the full record that is net buying of $25.5M.
How many insiders trade BRK-A stock?
5 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for BERKSHIRE HATHAWAY INC. The most recent filing was accepted on Sep 29, 2026.
Where does Trabud get BRK-A insider trading data?
All BRK-A insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.