Mitsui Sumitomo Insurance Co. Ltd., 10% Owner at BERKLEY W R CORP (WRB), bought 970,000 shares at $68.08 ($66.2M) on 2026-01-29, disclosed to the SEC on 2026-01-30.
Open-market purchase of $66.2M 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 | $68.08 | 262,282 | $17.9M | 27.0% |
| 2 | $68.08 | 262,282 | $17.9M | 27.0% |
| 3 | $68.56 | 27,718 | $1.9M | 2.9% |
| 4 | $68.56 | 27,718 | $1.9M | 2.9% |
| 5 | $68.36 | 195,000 | $13.3M | 20.1% |
| 6 | $68.36 | 195,000 |
| $13.3M |
| 20.1% |
| Total | $68.22 avg | 970,000 | $66.2M | 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 → |