Mitsui Sumitomo Insurance Co. Ltd., 10% Owner at BERKLEY W R CORP (WRB), bought 940,000 shares at $68.79 ($65.3M) on 2026-01-08, disclosed to the SEC on 2026-01-09.
Open-market purchase of $65.3M WRB by 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $68.79 | 4,187 | $288K | 0.4% |
| 2 | $68.79 | 4,187 | $288K | 0.4% |
| 3 | $69.69 | 39,302 | $2.7M | 4.2% |
| 4 | $69.69 | 39,302 | $2.7M | 4.2% |
| 5 | $70.32 | 151,511 | $10.7M | 16.3% |
| 6 | $70.32 | 151,511 |
| $10.7M |
| 16.3% |
| 7 | $68.48 | 161,176 | $11.0M | 16.9% |
| 8 | $68.48 | 161,176 | $11.0M | 16.9% |
| 9 | $69.56 | 105,674 | $7.4M | 11.3% |
| 10 | $69.56 | 105,674 | $7.4M | 11.3% |
| 11 | $70.12 | 8,150 | $571K | 0.9% |
| 12 | $70.12 | 8,150 | $571K | 0.9% |
| Total | $69.45 avg | 940,000 | $65.3M | 100% |
| Filing → |
| WRB | BUY | 2026-02-25 | $39.4M | — | Filing → |
| WRB | BUY | 2026-02-18 | $80.3M | — | Filing → |
| WRB | BUY | 2026-02-13 | $2.8M | — | Filing → |