BRK.B
insider transactionsBERKSHIRE HATHAWAY INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
+536
536 buy · 0 sell
Net value · 90d
$250.5K
$250.5K in · $0 out
Sentiment · 90d
Net buying
100% buying · 0% selling
Open-market trades · 90d
2
536 buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·G
Director, 10% Owner
$0
160 sh
Own -12%
-
Exercise·C
Director, 10% Owner
—
25 sh
Own +0%
-
Other·G
Director, 10% Owner
$0
18.6K sh
Own -93%
-
Other·G
Director, 10% Owner
$0
18.6K sh
Own -48%
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Exercise·C
Director, 10% Owner
$0
37.5K sh
Own +3366%
-
Other·G
Director
$0
574 sh
Own -17%
-
Buy·P
Senior Vice President, Genera…
$24.9K
53 sh · $470.22
Own +9%
-
Buy·P
Senior Vice President, Genera…
$225.6K
483 sh · $467.13
Own +380%
-
Other·G
Jain Ajit KEY
Vice Chairman
—
22 sh
Own -6%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 22, 2026 | BUFFETT WARREN E | Other G | 160 | $0 |
| May 18, 2026 | BUFFETT WARREN E | Exercise C | 25 | — |
| May 18, 2026 | BUFFETT WARREN E | Other G | 18.6K | $0 |
| May 18, 2026 | BUFFETT WARREN E | Other G | 18.6K | $0 |
| May 18, 2026 | BUFFETT WARREN E | Exercise C | 37.5K | $0 |
| May 14, 2026 | GUYMAN CHARLOTTE | Other G | 574 | $0 |
| May 6, 2026 | O'Sullivan Michael J. KEY | Buy P | 53 | $24.9K |
| May 6, 2026 | O'Sullivan Michael J. KEY | Buy P | 483 | $225.6K |
| Mar 27, 2026 | Jain Ajit KEY | Other G | 22 | — |
About BRK.B insider trading
This page tracks insider transactions for BERKSHIRE HATHAWAY INC (BRK.B) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.