Michael J. O'Sullivan, See Remarks at BERKSHIRE HATHAWAY INC (BRK.B), bought 488 shares at $510.64 ($250K) on 2026-08-12, disclosed to the SEC on 2026-08-13.
Open-market purchase of $250k BRK.B by See Remarks. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade C.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $510.64 | 45 | $23K | 9.2% |
| 2 | $512.52 | 400 | $205K | 82.0% |
| 3 | $513.61 | 43 | $22K | 8.8% |
| Total | $512.44 avg | 488 | $250K | 100% |
| Filing → |
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