Berkley W R Corp. (WRB) Insider Trading
Directors, officers and holders of more than 10% of WRB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 137 transactions on file: 32 with code P, 0 with code S and 18 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 3, 2026 | BERKLEY WILLIAM R JR | Chairman, President and CEO | A Award | 98,593 | Not measured | Not measured |
| Aug 3, 2026 | SHIEL JAMES G | EVP - Investments | A Award | 14,086 | Not measured | Not measured |
| Aug 3, 2026 | Welt Philip S | EVP & Secretary | F Tax Payment | 592 | $72.29 | $42,794 |
| Aug 3, 2026 | Baio Richard Mark | EVP & CFO | F Tax Payment | 650 | $72.29 | $46,987 |
| Aug 3, 2026 | Welt Philip S | EVP & Secretary | A Award | 14,086 | Not measured | Not measured |
| Aug 3, 2026 | SHIEL JAMES G | EVP - Investments | F Tax Payment | 650 | $72.29 | $46,987 |
| Aug 3, 2026 | Baio Richard Mark | EVP & CFO | A Award | 14,086 | Not measured | Not measured |
| Aug 3, 2026 | BERKLEY WILLIAM R JR | Chairman, President and CEO | F Tax Payment | 4,139 | $72.29 | $299,198 |
| Jun 3, 2026 | BLAYLOCK RONALD E | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Mattson Marie Angela | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | BERKLEY WILLIAM R | Executive Chairman | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Mosley Daniel Lynn | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Rusbuldt Robert Alan | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Talisman Jonathan | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Augostini Christopher L | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | BERKLEY WILLIAM R JR | Chairman, President and CEO | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Farrell Mary C | Director | A Award | 3,090 | Not measured | Not measured |
| Jun 3, 2026 | Ferre Maria Luisa | Director | A Award | 3,090 | Not measured | Not measured |
| Mar 3, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 73,185 | $72.52 | $5,307,654 |
| Mar 3, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 38,991 | $71.60 | $2,791,604 |
| Mar 2, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 100,897 | $73.20 | $7,385,459 |
| Mar 2, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 45,103 | $72.29 | $3,260,288 |
| Feb 27, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 147,000 | $71.63 | $10,528,963 |
| Feb 26, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 145,491 | $71.65 | $10,423,848 |
| Feb 26, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 7,509 | $72.11 | $541,504 |
| Feb 25, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 14,356 | $71.77 | $1,030,336 |
| Feb 25, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 154,512 | $71.39 | $11,030,874 |
| Feb 24, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 61,594 | $71.28 | $4,390,642 |
| Feb 24, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 103,192 | $70.52 | $7,277,430 |
| Feb 23, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 203,590 | $71.09 | $14,473,844 |
| Feb 23, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 16,410 | $71.80 | $1,178,305 |
| Feb 20, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 160,582 | $70.80 | $11,369,944 |
| Feb 19, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 300,986 | $70.53 | $21,227,730 |
| Feb 19, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 44,014 | $71.50 | $3,146,785 |
| Feb 18, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 45,250 | $70.96 | $3,210,908 |
| Feb 18, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 239,750 | $70.58 | $16,922,730 |
| Feb 17, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 281,386 | $71.19 | $20,032,854 |
| Feb 13, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 4,314 | $70.30 | $303,264 |
| Feb 13, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 280 | $71.18 | $19,932 |
| Feb 13, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 15,406 | $69.73 | $1,074,336 |
| Feb 12, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 17,599 | $71.88 | $1,265,030 |
| Feb 12, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 2,401 | $72.76 | $174,690 |
| Feb 11, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 11,163 | $71.45 | $797,589 |
| Feb 11, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 9,289 | $69.59 | $646,400 |
| Feb 11, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 3,578 | $70.50 | $252,266 |
| Feb 10, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 12,082 | $69.92 | $844,787 |
| Feb 10, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 21,884 | $69.09 | $1,511,904 |
| Feb 9, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 35,952 | $69.27 | $2,490,553 |
| Feb 9, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 4,048 | $70.32 | $284,653 |
| Feb 6, 2026 | MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | P Purchase | 15,694 | $70.46 | $1,105,812 |
The full Form 4 history is on the WRB company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.