| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| Philip S. Welt | Sec;EVP | 2026-08-03 | 592 | $72.29 | $42.79kSell |
| Richard Mark Baio | CFO;EVP | 2026-08-03 | 650 | $72.29 | $46.99kSell |
| William R. Berkley Jr. | CEO;Chair;Pres | 2026-08-03 | 4,139 | $72.29 | $299.20kSell |
| James G. Shiel | EVP | 2026-08-03 | 650 | $72.29 | $46.99kSell |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-03-03 | 38,991 | $71.60 | $2.79MBuy |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-03-03 | 73,185 | $72.52 | $5.31MBuy |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-03-02 | 100,897 | $73.20 | $7.39MBuy |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-03-02 | 45,103 | $72.29 | $3.26MBuy |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-02-27 | 147,000 | $71.63 | $10.53MBuy |
| Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2026-02-26 | 7,509 | $72.11 | $541.50kBuy |
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| William R. Berkley Jr. | 42.88% | 159,164,305 | $10.88B | Insider |
| William R. Berkley | 42.42% | 157,483,413 | $10.76B | Insider |
| Mitsui Sumitomo Insurance Co Ltd | 15.83% | 58,780,450 | $4.02B | Insider |
| Mark Ellwood Brockbank | 0.35% | 1,293,179 | $88.38M | Insider |
| James G. Shiel | 0.33% | 1,226,633 | $83.83M | Insider |
| Ira S. Lederman | 0.13% | 498,534 | $34.07M | Insider |
| Richard Mark Baio | 0.08% | 284,713 | $19.46M | Insider |
| Philip S. Welt | 0.07% | 263,496 | $18.01M | Insider |
| Eugene G. Ballard | 0.07% | 251,656 | $17.20M | Insider |
| Lucille T. Sgaglione | 0.07% | 249,784 | $17.07M | Insider |