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Form 4 trades the last 365 days, plus historical signal scoring over the last 365 days · institutional 13F view →
Open-Market Trades (365d)
3
Buy Hit Rate (90d)
+100.00%
Sell Timing (90d)
—
Weighted Return (90d)
+14.61%
SEC Form 4 open-market transactions (the last 365 days) · P/S only
Buy trades
3
Sell trades
0
Bought
$2.26M
Sold
$0
Net flow
+$2.26M
Latest trade
Aug 12, 2026
Latest 3 matching trade lines; the full ledger is below.
Filter every reported buy and sell for BRK-A.
| Date | Insider | Type | Value |
|---|---|---|---|
| Aug 12, 2026 | Purchase | $765.18K | |
| Aug 12, 2026 | Purchase | $765.19K | |
| Mar 4, 2026 | Purchase | $725.21K |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | FMR LLC | $10.88B | 0.47% | -14.5% |
| 2 | VANGUARD GROUP INC | $2.93B | 0.04% | +0.9% |
| 3 | MARKEL GROUP INC. | $832.16M | 6.48% | - |
| 4 | BlackRock, Inc. | $334.57M | 0.00% | -4.3% |
| 5 | STATE STREET CORP | $200.69M | 0.01% | -5.6% |
| 6 | Punch Card Management L.P. | $108.58M | 42.42% | - |
| 7 | Tweedy, Browne Co LLC | $107.57M | 8.76% | - |
| 8 | SEMPER AUGUSTUS INVESTMENTS GROUP LLC | $89.86M | 10.16% | +3.4% |
| 9 | International Value Advisers, LLC | $60.87M | 9.90% | -27.1% |
| 10 | CITADEL ADVISORS LLC | $29.21M | 0.02% | New |