Mitsui Sumitomo Insurance Co. Ltd., 10% Owner at BERKLEY W R CORP (WRB), bought 553,654 shares at $71.09 ($39.4M) on 2026-02-23, disclosed to the SEC on 2026-02-25.
Open-market purchase of $39.4M 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 C.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $71.09 | 203,590 | $14.5M | 36.8% |
| 2 | $71.80 | 16,410 | $1.2M | 3.0% |
| 3 | $70.52 | 103,192 | $7.3M | 18.5% |
| 4 | $71.28 | 61,594 | $4.4M | 11.1% |
| 5 | $71.39 | 154,512 | $11.0M | 28.0% |
| 6 | $71.77 | 14,356 |
| $1.0M |
| 2.6% |
| Total | $71.13 avg | 553,654 | $39.4M | 100% |
| Filing → |
| WRB | BUY | 2026-02-18 | $80.3M | — | Filing → |
| WRB | BUY | 2026-02-13 | $2.8M | — | Filing → |
| WRB | BUY | 2026-02-11 | $6.8M | — | Filing → |