16 insiders reported 229 Form 4 transactions for BERKLEY W R CORP (WRB) over the past 18 months (most recent 2026-08-05). Recent activity: SHIEL JAMES G (EVP - Investments) Buy 14,086 shares, BERKLEY WILLIAM R JR (Chairman, President and CEO) Buy 98,593 shares, Baio Richard Mark (EVP & CFO) Buy 14,086 shares, Welt Philip S (EVP & Secretary) Buy 14,086 shares, SHIEL JAMES G (EVP - Investments) Sell 650 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-05 | SHIEL JAMES G | EVP - Investments | Buy | 14,086 | $0 |
| 2026-08-05 | BERKLEY WILLIAM R JR | Chairman, President and CEO | Buy | 98,593 | $0 |
| 2026-08-05 | Baio Richard Mark | EVP & CFO | Buy | 14,086 | $0 |
| 2026-08-05 | Welt Philip S | EVP & Secretary | Buy | 14,086 | $0 |
| 2026-08-05 | SHIEL JAMES G | EVP - Investments | Sell | 650 | $46,987 |
| 2026-08-05 | BERKLEY WILLIAM R JR | Chairman, President and CEO | Sell | 4,139 | $299,198 |
| 2026-08-05 | Baio Richard Mark | EVP & CFO | Sell | 650 | $46,987 |
| 2026-08-05 | Welt Philip S | EVP & Secretary | Sell | 592 | $42,794 |
| 2026-06-04 | BLAYLOCK RONALD E | Director | Buy | 3,090 | $0 |
| 2026-06-04 | BERKLEY WILLIAM R JR | President and CEO | Buy | 3,090 | $0 |
| 2026-06-04 | Ferre Maria Luisa | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Farrell Mary C | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Augostini Christopher L | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Talisman Jonathan | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Mosley Daniel Lynn | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Mattson Marie Angela | Director | Buy | 3,090 | $0 |
| 2026-06-04 | Rusbuldt Robert Alan | Director | Buy | 3,090 | $0 |
| 2026-06-04 | BERKLEY WILLIAM R | Executive Chairman | Buy | 3,090 | $0 |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | Insider | Buy | 45,103 | $3.3M |
| 2026-03-03 | MS&AD Insurance Group Holdings, Inc. | Insider | Buy | 45,103 | $3.3M |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | Insider | Buy | 100,897 | $7.4M |
| 2026-03-03 | MS&AD Insurance Group Holdings, Inc. | Insider | Buy | 100,897 | $7.4M |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | Insider | Buy | 38,991 | $2.8M |
| 2026-03-03 | MS&AD Insurance Group Holdings, Inc. | Insider | Buy | 38,991 | $2.8M |
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | Insider | Buy | 73,185 | $5.3M |
Source: SEC Form 4 filings · as of 2026-08-05