17 insiders have filed at WRB since 2023Q3: names, roles, reported stakes, and each person's buying and selling record from SEC Form 3/4/5 filings.
| name | role | reported stake | % of company | buys (3y) | sells (3y) |
|---|---|---|---|---|---|
| Berkley William R | Executive Chairman | 85.99M | 21.781% | none | none |
| Berkley William R JR | President And CEO | 72.97M | 18.484% | none | none |
| Mitsui Sumitomo Insurance Co Ltd | 10% owner | 58.78M | 14.889% | none | none |
| Ms&ad Insurance Group Holdings, Inc. | 10% owner | 58.78M | 14.889% | none | none |
| Shiel James G | EVP - Investments | 1.01M | 0.255% | none | none |
| Sgaglione Lucille T | EVP | 249.8k | 0.063% | none | none |
| Baio Richard Mark | EVP & CFO | 235.6k | 0.06% | none | none |
| Welt Philip S | EVP & Secretary | 224.9k | 0.057% | none | none |
| Farrell Mary C | Director | 157.9k | 0.04% | none | none |
| Shapiro Mark L | Director | 145.5k | 0.037% | none | none |
| Blaylock Ronald E | Director | 144.9k | 0.037% | none | none |
| Augostini Christopher L | Director | 106.8k | 0.027% | none | none |
| Ferre Maria Luisa | Director | 56.1k | 0.014% | none | none |
| Talisman Jonathan | Director | 30.9k | <0.01% | none | none |
| Mosley Daniel Lynn | Director | 11.8k | <0.01% | none | none |
| Mattson Marie Angela | Director | 6.6k | <0.01% | none | none |
| Rusbuldt Robert Alan | Director | none | none |
No open-market buys or sells have been reported at WRB since 2023Q3. The table shows the filed stakes; it updates when an insider files.
Full register at boothcheck.com/insiders/WRB. Stakes are the newest reported Form 3/4/5 balances (they update only when insiders file). Sales counted include pre-scheduled plan sales, labeled. A filed record, not a forecast. Nothing here is investment advice.