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).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 365 days, totalling $15.6M.
Net shares · 365d
-16.4K
557 buy · 17.0K sell
Net value · 365d
$14.6M
$15.6M in · $929.5K out
Sentiment · 365d
Net selling
94% buying · 6% selling
Open-market trades · 365d
22
557 buy · 17.0K 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
-
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%
-
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%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
—
2 sh
Own -0%
-
Buy·P
See Remarks
$726.0K
1 sh · $725,995.00
Own +0%
-
Buy·P
See Remarks
$733.1K
1 sh · $733,100.00
Own +0%
-
Buy·P
See Remarks
$732.5K
1 sh · $732,500.00
Own +0%
-
Buy·P
See Remarks
$1.5M
2 sh · $732,000.00
Own +1%
-
Buy·P
See Remarks
$731.3K
1 sh · $731,349.99
Own +0%
-
Buy·P
See Remarks
$730.7K
1 sh · $730,707.01
Own +0%
-
Buy·P
See Remarks
$730.7K
1 sh · $730,700.00
Own +0%
-
Buy·P
See Remarks
$730.1K
1 sh · $730,145.00
Own +0%
-
Buy·P
See Remarks
$729.0K
1 sh · $729,000.00
Own +0%
-
Buy·P
See Remarks
$1.5M
2 sh · $727,530.26
Own +1%
-
Buy·P
See Remarks
$727.5K
1 sh · $727,453.25
Own +0%
-
Buy·P
See Remarks
$1.5M
2 sh · $727,185.00
Own +1%
-
Buy·P
See Remarks
$727.0K
1 sh · $726,994.76
Own +0%
-
Buy·P
See Remarks
$726.4K
1 sh · $726,407.57
Own +0%
-
Buy·P
See Remarks
$726.1K
1 sh · $726,079.01
Own +0%
-
Buy·P
See Remarks
$726.0K
1 sh · $725,999.99
Own +0%
-
Buy·P
See Remarks
$733.3K
1 sh · $733,300.00
Own +0%
-
Buy·P
See Remarks
$725.2K
1 sh · $725,210.19
Own +0%
-
Exercise·C
BUFFETT WARREN E KEY
Chairman and CEO
—
1.8K sh
Own +1%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
400.0K sh
Own -100%
-
Exercise·C
BUFFETT WARREN E KEY
Chairman and CEO
$0
2.7M sh
Own +242370%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
1.5M sh
Own -56%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
400.0K sh
Own -33%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
400.0K sh
Own -50%
-
Exercise·C
Director
—
1 sh
Own +2%
-
Other·G
Director
$0
410 sh
Own -11%
-
Exercise·C
Director
$0
1.5K sh
Own +63%
-
Other·G
Jain Ajit KEY
Vice Chairman
—
32 sh
Own -8%
-
Sell·S
Jain Ajit KEY
Vice Chairman
—
15.0K sh
Own -12%
-
Other·G
Jain Ajit KEY
Vice Chairman
—
32 sh
Own -8%
-
Sell·S
Jain Ajit KEY
Vice Chairman
$929.5K
2.0K sh · $464.73
Own -2%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
30 sh
Own -3%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
660.4K sh
Own -33%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
660.4K sh
Own -50%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
943.4K sh
Own -32%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
9.4M sh
Own -76%
-
Other·G
BUFFETT WARREN E KEY
Chairman and CEO
$0
660.4K sh
Own -100%
-
Exercise·C
BUFFETT WARREN E KEY
Chairman and CEO
—
8.2K sh
Own +4%
-
Exercise·C
BUFFETT WARREN E KEY
Chairman and CEO
$0
12.4M sh
Own +1280674%
| 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 | — |
| Mar 17, 2026 | BUFFETT WARREN E KEY | Other G | 2 | — |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $726.0K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $733.1K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $732.5K |
| Mar 4, 2026 | Abel Gregory | Buy P | 2 | $1.5M |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $731.3K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $730.7K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $730.7K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $730.1K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $729.0K |
| Mar 4, 2026 | Abel Gregory | Buy P | 2 | $1.5M |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $727.5K |
| Mar 4, 2026 | Abel Gregory | Buy P | 2 | $1.5M |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $727.0K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $726.4K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $726.1K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $726.0K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $733.3K |
| Mar 4, 2026 | Abel Gregory | Buy P | 1 | $725.2K |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Exercise C | 1.8K | — |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Other G | 400.0K | $0 |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Exercise C | 2.7M | $0 |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Other G | 1.5M | $0 |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Other G | 400.0K | $0 |
| Nov 10, 2025 | BUFFETT WARREN E KEY | Other G | 400.0K | $0 |
| Nov 3, 2025 | GUYMAN CHARLOTTE | Exercise C | 1 | — |
| Nov 3, 2025 | GUYMAN CHARLOTTE | Other G | 410 | $0 |
| Nov 3, 2025 | GUYMAN CHARLOTTE | Exercise C | 1.5K | $0 |
| Oct 22, 2025 | Jain Ajit KEY | Other G | 32 | — |
| Sep 26, 2025 | Jain Ajit KEY | Sell S | 15.0K | — |
| Sep 24, 2025 | Jain Ajit KEY | Other G | 32 | — |
| Aug 8, 2025 | Jain Ajit KEY | Sell S | 2.0K | $929.5K |
| Jul 14, 2025 | BUFFETT WARREN E KEY | Other G | 30 | $0 |
| Jun 30, 2025 | BUFFETT WARREN E KEY | Other G | 660.4K | $0 |
| Jun 30, 2025 | BUFFETT WARREN E KEY | Other G | 660.4K | $0 |
| Jun 30, 2025 | BUFFETT WARREN E KEY | Other G | 943.4K | $0 |
| Jun 30, 2025 | BUFFETT WARREN E KEY | Other G | 9.4M | $0 |
| Jun 30, 2025 | BUFFETT WARREN E KEY | Other G | 660.4K | $0 |
| Jun 27, 2025 | BUFFETT WARREN E KEY | Exercise C | 8.2K | — |
| Jun 27, 2025 | BUFFETT WARREN E KEY | Exercise C | 12.4M | $0 |
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.