BERKLEY W R CORP — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| MITSUI SUMITOMO INSURANCE CO LTD | — | Purchase | 220,000 | $70.56 | $15,523,200 | 49,886,511 | Dec 23, 2025 |
| MS&AD Insurance Group Holdings, Inc. | — | Purchase | 162,060 | $70.33 | $11,397,680 | 49,211,938 | Dec 19, 2025 |
| SHIEL JAMES G | EVP - Investments | Gift | 1,250 | — | — | 797,197 | Dec 18, 2025 |
| SHIEL JAMES G | EVP - Investments | Tax Withholding | 744 | $71.24 | $53,003 | 798,447 | Aug 15, 2025 |
| Sgaglione Lucille T | EVP | Award / Grant | 16,126 | — | — | 241,753 | Aug 15, 2025 |
| Welt Philip S | EVP & Secretary | Award / Grant | 16,126 | — | — | 201,217 | Aug 15, 2025 |
| Baio Richard Mark | EVP & CFO | Tax Withholding | 744 | $71.24 | $53,003 | 214,175 | Aug 15, 2025 |
| BERKLEY WILLIAM R JR | President and CEO | Tax Withholding | 4,696 | $71.24 | $334,543 | 4,552,770 | Aug 15, 2025 |
| BERKLEY WILLIAM R | Executive Chairman | Award / Grant | 111,869 | — | — | 17,367,562 | Aug 15, 2025 |
| BERKLEY WILLIAM R | Executive Chairman | Award / Grant | 2,776 | — | — | 17,255,693 | Jun 11, 2025 |
| Mosley Daniel Lynn | — | Award / Grant | 2,776 | — | — | 11,795 | Jun 11, 2025 |
| Mattson Marie Angela | — | Award / Grant | 2,776 | — | — | 6,577 | Jun 11, 2025 |
| Ferre Maria Luisa | — | Award / Grant | 2,776 | — | — | 56,144 | Jun 11, 2025 |
| Talisman Jonathan | — | Award / Grant | 2,776 | — | — | 30,090 | Jun 11, 2025 |
| Farrell Mary C | — | Award / Grant | 2,776 | — | — | 16,288 | Jun 11, 2025 |
| BERKLEY WILLIAM R JR | President and CEO | Award / Grant | 2,776 | — | — | 4,445,597 | Jun 11, 2025 |
| BLAYLOCK RONALD E | — | Award / Grant | 2,776 | — | — | 118,900 | Jun 11, 2025 |
| Augostini Christopher L | — | Award / Grant | 2,776 | — | — | 106,769 | Jun 11, 2025 |
| Rusbuldt Robert Alan | — | Award / Grant | 2,776 | — | — | 2,776 | Jun 11, 2025 |
| SHIEL JAMES G | EVP - Investments | Gift | 208,000 | — | — | 783,065 | Jan 8, 2025 |
| SHIEL JAMES G | EVP - Investments | Gift | 1,500 | — | — | 991,065 | Dec 26, 2024 |
| SHIEL JAMES G | EVP - Investments | Award / Grant | 17,473 | — | — | 993,371 | Aug 15, 2024 |
| Sgaglione Lucille T | EVP | Tax Withholding | 776 | $57.75 | $44,814 | 225,627 | Aug 15, 2024 |
| Baio Richard Mark | EVP & CFO | Award / Grant | 17,473 | — | — | 199,599 | Aug 15, 2024 |
| Welt Philip S | EVP & Secretary | Award / Grant | 17,473 | — | — | 185,826 | Aug 15, 2024 |
| BERKLEY WILLIAM R JR | President and CEO | Tax Withholding | 5,055 | $57.75 | $291,926 | 4,442,821 | Aug 15, 2024 |
| BERKLEY WILLIAM R | Executive Chairman | Tax Withholding | 4,604 | $57.75 | $265,881 | 17,252,917 | Aug 15, 2024 |
| BERKLEY WILLIAM R | Executive Chairman | Award / Grant | 2,534 | — | — | 11,424,727 | Jun 12, 2024 |
| Ferre Maria Luisa | — | Award / Grant | 2,534 | — | — | 35,579 | Jun 12, 2024 |
| Farrell Mary C | — | Award / Grant | 2,534 | — | — | 9,008 | Jun 12, 2024 |
| Augostini Christopher L | — | Award / Grant | 2,534 | — | — | 69,329 | Jun 12, 2024 |
| Mosley Daniel Lynn | — | Award / Grant | 2,534 | — | — | 6,013 | Jun 12, 2024 |
| BLAYLOCK RONALD E | — | Award / Grant | 2,534 | — | — | 77,416 | Jun 12, 2024 |
| SHAPIRO MARK L | — | Award / Grant | 2,534 | — | — | 2,534 | Jun 12, 2024 |
| Talisman Jonathan | — | Award / Grant | 2,534 | — | — | 18,210 | Jun 12, 2024 |
| Mattson Marie Angela | — | Award / Grant | 2,534 | — | — | 2,534 | Jun 12, 2024 |
| BERKLEY WILLIAM R JR | President and CEO | Award / Grant | 2,534 | — | — | 2,884,966 | Jun 12, 2024 |
| Sgaglione Lucille T | EVP | Tax Withholding | 592 | $63.14 | $37,379 | 139,288 | Aug 15, 2023 |
| SHIEL JAMES G | EVP - Investments | Tax Withholding | 601 | $63.14 | $37,947 | 650,599 | Aug 15, 2023 |
| Baio Richard Mark | EVP & CFO | Award / Grant | 12,274 | — | — | 121,983 | Aug 15, 2023 |
| BERKLEY WILLIAM R | Executive Chairman | Tax Withholding | 3,417 | $63.14 | $215,749 | 11,422,193 | Aug 15, 2023 |
| BERKLEY WILLIAM R JR | President and CEO | Award / Grant | 89,507 | — | — | 2,886,190 | Aug 15, 2023 |
| Welt Philip S | EVP & Secretary | Tax Withholding | 363 | $63.14 | $22,920 | 112,236 | Aug 15, 2023 |
| SHAPIRO MARK L | — | Award / Grant | 3,479 | — | — | 3,479 | Jun 14, 2023 |
| Ferre Maria Luisa | — | Award / Grant | 3,479 | — | — | 33,045 | Jun 14, 2023 |
| Farrell Mary C | — | Award / Grant | 3,479 | — | — | 3,479 | Jun 14, 2023 |
| BLAYLOCK RONALD E | — | Award / Grant | 3,479 | — | — | 74,882 | Jun 14, 2023 |
| Augostini Christopher L | — | Award / Grant | 3,479 | — | — | 66,795 | Jun 14, 2023 |
| BERKLEY WILLIAM R JR | President and CEO | Award / Grant | 3,479 | — | — | 2,796,683 | Jun 14, 2023 |
| BERKLEY WILLIAM R | Executive Chairman | Award / Grant | 3,479 | — | — | 11,336,103 | Jun 14, 2023 |