Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-03 | Talisman Jonathan | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | BLAYLOCK RONALD E | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | Augostini Christopher L | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | Rusbuldt Robert Alan | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | Farrell Mary C | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | Mosley Daniel Lynn | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | BERKLEY WILLIAM R JR | Director,Officer | +Grant | 3,090 | — | — |
| 2026-06-03 | Mattson Marie Angela | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | Ferre Maria Luisa | Director | +Grant | 3,090 | — | — |
| 2026-06-03 | BERKLEY WILLIAM R | Director,Officer,TenPercentOwner | +Grant | 3,090 | — | — |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 38,991 | $71.60 | $3M |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 73,185 | $72.52 | $5M |
| 2026-03-02 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 45,103 | $72.29 | $3M |
| 2026-03-02 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 100,897 | $73.20 | $7M |
| 2026-02-27 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 147,000 | $71.63 | $11M |
| 2026-02-26 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 7,509 | $72.11 | $541,474 |
| 2026-02-26 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 145,491 | $71.65 | $10M |
| 2026-02-25 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 154,512 | $71.39 | $11M |
| 2026-02-25 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 14,356 | $71.77 | $1M |
| 2026-02-24 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 61,594 | $71.28 | $4M |
| 2026-02-24 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 103,192 | $70.52 | $7M |
| 2026-02-23 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 203,590 | $71.09 | $14M |
| 2026-02-23 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 16,410 | $71.80 | $1M |
| 2026-02-20 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 160,582 | $70.80 | $11M |
| 2026-02-19 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 44,014 | $71.50 | $3M |
| 2026-02-19 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 300,986 | $70.53 | $21M |
| 2026-02-18 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 45,250 | $70.96 | $3M |
| 2026-02-18 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 239,750 | $70.58 | $17M |
| 2026-02-17 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 281,386 | $71.19 | $20M |
| 2026-02-13 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 15,406 | $69.73 | $1M |
| 2026-02-13 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 280 | $71.18 | $19,930 |
| 2026-02-13 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 4,314 | $70.30 | $303,274 |
| 2026-02-12 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 17,599 | $71.88 | $1M |
| 2026-02-12 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 2,401 | $72.76 | $174,697 |
| 2026-02-11 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 3,578 | $70.50 | $252,249 |
| 2026-02-11 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 9,289 | $69.59 | $646,422 |
| 2026-02-11 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 11,163 | $71.45 | $797,596 |
| 2026-02-10 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 21,884 | $69.09 | $2M |
| 2026-02-10 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 12,082 | $69.92 | $844,773 |
| 2026-02-09 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 35,952 | $69.27 | $2M |
| 2026-02-09 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 4,048 | $70.32 | $284,655 |
| 2026-02-06 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 4,306 | $71.39 | $307,405 |
| 2026-02-06 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 15,694 | $70.46 | $1M |
| 2026-02-05 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 13,472 | $71.25 | $959,880 |
| 2026-02-05 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 6,528 | $70.79 | $462,117 |
| 2026-02-04 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 22,415 | $70.25 | $2M |
| 2026-02-04 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 2,585 | $69.77 | $180,355 |
| 2026-02-03 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 8,347 | $67.75 | $565,509 |
| 2026-02-03 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 31,653 | $68.87 | $2M |
| 2026-02-02 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 13,159 | $68.42 | $900,339 |
| 2026-02-02 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 237,062 | $67.71 | $16M |
| 2026-01-30 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 195,000 | $68.36 | $13M |
| 2026-01-29 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 262,282 | $68.08 | $18M |
| 2026-01-29 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 27,718 | $68.56 | $2M |
| 2026-01-28 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 28,577 | $67.89 | $2M |
| 2026-01-28 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 280,354 | $67.58 | $19M |
| 2026-01-27 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 800 | $65.86 | $52,688 |
| 2026-01-27 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 2,671 | $69.04 | $184,406 |
| 2026-01-27 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 8,582 | $68.56 | $588,382 |
| 2026-01-27 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 325,960 | $67.40 | $22M |
| 2026-01-27 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 11,987 | $66.87 | $801,571 |
| 2026-01-26 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 76,389 | $67.88 | $5M |
| 2026-01-26 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 293,611 | $66.86 | $20M |
| 2026-01-23 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 201,081 | $66.77 | $13M |
| 2026-01-23 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 166,919 | $67.18 | $11M |
| 2026-01-22 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 330,000 | $67.45 | $22M |
| 2026-01-21 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 260,998 | $67.60 | $18M |
| 2026-01-21 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 59,002 | $66.95 | $4M |
| 2026-01-20 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 44,994 | $68.08 | $3M |
| 2026-01-20 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 265,006 | $67.75 | $18M |
| 2026-01-16 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 58,691 | $68.79 | $4M |
| 2026-01-16 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 241,309 | $68.03 | $16M |
| 2026-01-15 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 166,907 | $68.68 | $11M |
| 2026-01-15 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 68,093 | $69.45 | $5M |
| 2026-01-14 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 21,728 | $68.80 | $1M |
| 2026-01-14 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 208,272 | $69.23 | $14M |
| 2026-01-13 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 206,499 | $68.15 | $14M |
| 2026-01-13 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 118,501 | $67.82 | $8M |
| 2026-01-12 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 256,041 | $68.73 | $18M |
| 2026-01-09 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 105,674 | $69.56 | $7M |
| 2026-01-09 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 161,176 | $68.48 | $11M |
| 2026-01-09 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 8,150 | $70.12 | $571,478 |
| 2026-01-08 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 151,511 | $70.32 | $11M |
| 2026-01-08 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 39,302 | $69.69 | $3M |
| 2026-01-08 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 4,187 | $68.79 | $288,024 |
| 2026-01-07 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 254,622 | $68.47 | $17M |
| 2026-01-07 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 10,378 | $69.20 | $718,158 |
| 2026-01-06 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 92,357 | $70.21 | $6M |
| 2026-01-06 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 122,931 | $69.93 | $9M |
| 2026-01-05 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 11,350 | $69.20 | $785,420 |
| 2026-01-05 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 35,894 | $70.23 | $3M |
| 2026-01-05 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 153,686 | $70.78 | $11M |
| 2026-01-02 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 237,734 | $69.35 | $16M |
| 2025-12-31 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 230,000 | $70.27 | $16M |
| 2025-12-30 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 205,000 | $70.83 | $15M |
| 2025-12-29 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 205,000 | $70.77 | $15M |
| 2025-12-26 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 220,000 | $70.56 | $16M |
| 2025-12-24 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 220,000 | $70.51 | $16M |
| 2025-12-23 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 2,027 | $71.15 | $144,221 |
| 2025-12-23 | MITSUI SUMITOMO INSURANCE CO LTD | TenPercentOwner | +Buy | 232,546 | $70.31 | $16M |
| 2025-12-22 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 162,060 | $70.33 | $11M |
| 2025-12-22 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 39,940 | $69.97 | $3M |
| 2025-12-19 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 204,000 | $69.50 | $14M |
| 2025-12-18 | SHIEL JAMES G | Officer | −Gift | 1,250 | — | — |
| 2025-12-18 | MS&AD Insurance Group Holdings, Inc. | TenPercentOwner | +Buy | 204,350 | $69.38 | $14M |
| 2025-08-15 | BERKLEY WILLIAM R | Director,Officer,TenPercentOwner | +Grant | 111,869 | — | — |
| 2025-08-15 | BERKLEY WILLIAM R | Director,Officer,TenPercentOwner | −Tax w/h | 4,277 | $71.24 | $304,693 |
| 2025-08-15 | BERKLEY WILLIAM R JR | Director,Officer | −Tax w/h | 4,696 | $71.24 | $334,543 |
| 2025-08-15 | BERKLEY WILLIAM R JR | Director,Officer | +Grant | 111,869 | — | — |
| 2025-08-15 | Baio Richard Mark | Officer | −Tax w/h | 744 | $71.24 | $53,003 |
| 2025-08-15 | Baio Richard Mark | Officer | +Grant | 16,126 | — | — |
| 2025-08-15 | Welt Philip S | Officer | +Grant | 16,126 | — | — |
| 2025-08-15 | Welt Philip S | Officer | −Tax w/h | 678 | $71.24 | $48,301 |
| 2025-08-15 | Sgaglione Lucille T | Officer | +Grant | 16,126 | — | — |
| 2025-08-15 | Sgaglione Lucille T | Officer | −Tax w/h | 717 | $71.24 | $51,079 |
| 2025-08-15 | SHIEL JAMES G | Officer | −Tax w/h | 744 | $71.24 | $53,003 |
| 2025-08-15 | SHIEL JAMES G | Officer | +Grant | 16,126 | — | — |
| 2025-06-11 | Rusbuldt Robert Alan | Director | +Grant | 2,776 | — | — |
| 2025-06-11 | Augostini Christopher L | Director | +Grant | 2,776 | — | — |
| 2025-06-11 | BLAYLOCK RONALD E | Director | +Grant | 2,776 | — | — |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
