Updated Jul 16, 2026 · Last SEC filing 2026-06-04
BERKLEY W R CORP (WRB) has filed 10 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-04. 5 Form 8-K material event filings were reported by WRB in the last 90 days. InsiderAlpha tracks every WRB SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000011544 |
|---|
| Form 4 filings (90d) | 10 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Latest Form 4 filing | 2026-06-04 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| BERKLEY WILLIAM R JR | President and CEO | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| BERKLEY WILLIAM R | Executive Chairman | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Talisman Jonathan | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Ferre Maria Luisa | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Rusbuldt Robert Alan | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Mattson Marie Angela | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Farrell Mary C | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| BLAYLOCK RONALD E | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Augostini Christopher L | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Mosley Daniel Lynn | Insider | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| MITSUI SUMITOMO INSURANCE CO LTD | Insider | P — Open-market purchase [10b5-1] | 73.2K | $72.52 | $5.31M | SEC | |
| MITSUI SUMITOMO INSURANCE CO LTD | Insider | P — Open-market purchase [10b5-1] | 39.0K | $71.60 | $2.79M | SEC | |
| MITSUI SUMITOMO INSURANCE CO LTD | Insider | P — Open-market purchase [10b5-1] | 100.9K | $73.20 | $7.39M | SEC | |
| MITSUI SUMITOMO INSURANCE CO LTD | Insider | P — Open-market purchase [10b5-1] | 45.1K | $72.29 | $3.26M | SEC | |
| MITSUI SUMITOMO INSURANCE CO LTD | Insider | P — Open-market purchase [10b5-1] | 147.0K | $71.63 | $10.53M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for BERKLEY W R CORP (WRB). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Ferre Maria Luisa | 1 | — |
| BERKLEY WILLIAM R | 1 | — |
| BERKLEY WILLIAM R JR | 1 | — |
| Rusbuldt Robert Alan | 1 | — |
| Augostini Christopher L | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in WRB insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live WRB dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.