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| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For WRB | |||||
| 2026-06-03 | Mattson, Marie Angela | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Talisman, Jonathan | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Blaylock, Ronald E | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Augostini, Christopher L | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Rusbuldt, Robert Alan | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Farrell, Mary C | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Mosley, Daniel Lynn | Director | Purchased | 3090 | $0.00 |
| 2026-06-03 | Berkley, William R Jr | Director, President and CEO | Purchased | 3090 | $0.00 |
| 2026-06-03 | Berkley, William R | Director, Executive Chairman, 10% Owner | Purchased | 3090 | $0.00 |
| 2026-06-03 | Ferre, Maria Luisa | Director | Purchased | 3090 | $0.00 |
| 2026-03-03 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 73185 | $72.52 |
| 2026-03-03 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 38991 | $71.60 |
| 2026-03-02 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 45103 | $72.29 |
| 2026-03-02 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 100897 | $73.20 |
| 2026-02-27 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 147000 | $71.63 |
| 2026-02-26 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 7509 | $72.11 |
| 2026-02-26 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 145491 | $71.65 |
| 2026-02-25 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 14356 | $71.77 |
| 2026-02-25 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 154512 | $71.39 |
| 2026-02-24 | Mitsui, Sumitomo Insurance Co Ltd | 10% Owner | Purchased | 61594 | $71.28 |
