The Filings Report

W.R. Berkley Corporation insider trading

WRBfinancial statementsForm 4 filings on EDGAR137 transactions since Nov 1, 2024

From August 4, 2026 to November 1, 2026, 0 insiders at W.R. Berkley Corporation bought $0 of stock in the open market, and 0 sold $0. Officers and directors accounted for $0 of purchases and $0 of sales. The last reported transaction was an award by Welt Philip S on August 3, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through August 5, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

WRB daily priceSplit-adjusted prices in US dollars

Bought $0Sold $0Aug 4, 2026 – Nov 1, 2026

Oct 30, 2026O $74.50 · H $74.85 · L $73.52 · C $73.86Bought $0 (0)Sold $0 (0)
$66$68$71$74$762026-08-04: open $72.29, high $72.29, low $70.50, close $71.392026-08-05: open $71.90, high $72.28, low $71.40, close $72.082026-08-06: open $73.12, high $73.43, low $71.50, close $72.132026-08-07: open $71.48, high $71.91, low $70.56, close $71.602026-08-10: open $70.97, high $71.19, low $70.08, close $70.822026-08-11: open $70.47, high $70.83, low $70.02, close $70.092026-08-12: open $69.52, high $70.55, low $69.31, close $69.732026-08-13: open $70.12, high $70.71, low $69.68, close $70.472026-08-14: open $70.38, high $70.70, low $70.05, close $70.512026-08-17: open $70.20, high $71.04, low $69.71, close $69.752026-08-18: open $70.88, high $71.38, low $70.15, close $70.172026-08-19: open $70.35, high $71.28, low $69.58, close $69.612026-08-20: open $69.46, high $70.10, low $69.18, close $69.182026-08-21: open $69.38, high $69.66, low $68.49, close $68.602026-08-24: open $69.03, high $70.22, low $69.03, close $69.702026-08-25: open $69.64, high $69.64, low $68.46, close $68.482026-08-26: open $68.38, high $68.90, low $68.38, close $68.672026-08-27: open $68.00, high $68.44, low $67.60, close $68.342026-08-28: open $68.76, high $68.93, low $67.99, close $68.442026-08-31: open $68.34, high $68.42, low $67.36, close $67.562026-09-01: open $67.99, high $68.16, low $67.42, close $67.722026-09-02: open $68.16, high $68.48, low $67.63, close $68.122026-09-03: open $68.69, high $69.85, low $68.56, close $69.502026-09-04: open $68.85, high $69.79, low $68.73, close $69.142026-09-08: open $68.73, high $70.67, low $68.22, close $69.772026-09-09: open $69.34, high $70.03, low $68.77, close $69.912026-09-10: open $70.43, high $70.78, low $69.03, close $70.052026-09-11: open $70.97, high $70.97, low $69.58, close $69.902026-09-14: open $70.83, high $71.46, low $70.04, close $70.872026-09-15: open $70.70, high $71.33, low $70.00, close $71.282026-09-16: open $70.81, high $71.20, low $69.78, close $69.952026-09-17: open $69.98, high $70.47, low $69.60, close $70.102026-09-18: open $69.80, high $70.36, low $69.15, close $69.992026-09-21: open $69.76, high $70.08, low $68.74, close $68.792026-09-22: open $68.72, high $69.06, low $67.71, close $68.172026-09-23: open $67.99, high $68.79, low $67.54, close $67.672026-09-24: open $68.09, high $68.45, low $67.24, close $67.292026-09-25: open $67.16, high $67.28, low $66.32, close $66.822026-09-28: open $66.71, high $67.71, low $66.26, close $67.662026-09-29: open $67.20, high $68.31, low $67.11, close $68.222026-09-30: open $68.14, high $68.54, low $67.46, close $67.542026-10-01: open $67.34, high $69.14, low $66.99, close $68.902026-10-02: open $68.83, high $69.32, low $68.36, close $68.982026-10-05: open $68.87, high $69.98, low $68.68, close $69.772026-10-06: open $69.75, high $70.87, low $69.48, close $69.652026-10-07: open $69.99, high $70.54, low $69.61, close $69.732026-10-08: open $70.01, high $72.50, low $70.01, close $72.052026-10-09: open $71.94, high $72.57, low $71.68, close $71.912026-10-12: open $72.34, high $73.23, low $72.34, close $72.902026-10-13: open $73.26, high $73.74, low $72.75, close $73.552026-10-14: open $73.55, high $74.14, low $72.71, close $73.802026-10-15: open $75.03, high $75.83, low $73.95, close $73.972026-10-16: open $73.82, high $75.46, low $73.69, close $75.422026-10-19: open $74.62, high $75.44, low $73.37, close $74.082026-10-20: open $73.71, high $74.50, low $72.91, close $73.152026-10-21: open $73.27, high $74.34, low $72.80, close $74.342026-10-22: open $74.96, high $75.88, low $74.62, close $75.552026-10-23: open $75.06, high $75.55, low $73.10, close $73.332026-10-26: open $73.52, high $74.19, low $73.44, close $73.792026-10-27: open $73.33, high $73.76, low $71.73, close $72.382026-10-28: open $72.08, high $72.49, low $71.36, close $71.632026-10-29: open $72.33, high $73.11, low $72.14, close $73.102026-10-30: open $74.50, high $74.85, low $73.52, close $73.86Insider purchases / sales · USD$0No open-market purchases or sales in this period.Aug 4Aug 26Sep 17Oct 9Oct 30

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Oct 30, 2026. Insider data through Nov 1, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

137 transactions from November 1, 2024 to November 1, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Aug 3, 2026Welt Philip SEVP & Secretaryaward14,086$0.00—214,625Aug 5, 2026
Aug 3, 2026Welt Philip SEVP & Secretarytax withholding592$72.29$43K214,033Aug 5, 2026
Aug 3, 2026Baio Richard MarkEVP & CFOaward14,086$0.00—228,261Aug 5, 2026
Aug 3, 2026Baio Richard MarkEVP & CFOtax withholding650$72.29$47K227,611Aug 5, 2026
Aug 3, 2026Berkley William R JRChairman, President and CEO, Director, 10% owneraward98,593$0.00—5MAug 5, 2026
Aug 3, 2026Berkley William R JRChairman, President and CEO, Director, 10% ownertax withholding4,139$72.29$299K5MAug 5, 2026
Aug 3, 2026Shiel James GEVP - Investmentsaward14,086$0.00—811,283Aug 5, 2026
Aug 3, 2026Shiel James GEVP - Investmentstax withholding650$72.29$47K810,633Aug 5, 2026
Jun 3, 2026Berkley William RExecutive Chairman, Director, 10% owneraward3,090$0.00—17MJun 4, 2026
Jun 3, 2026Ferre Maria LuisaDirectoraward3,090$0.00—59,234Jun 4, 2026
Jun 3, 2026Mattson Marie AngelaDirectoraward3,090$0.00—9,667Jun 4, 2026
Jun 3, 2026Berkley William R JRPresident and CEO, Directoraward3,090$0.00—5MJun 4, 2026
Jun 3, 2026Mosley Daniel LynnDirectoraward3,090$0.00—14,885Jun 4, 2026
Jun 3, 2026Farrell Mary CDirectoraward3,090$0.00—19,378Jun 4, 2026
Jun 3, 2026Rusbuldt Robert AlanDirectoraward3,090$0.00—5,866Jun 4, 2026
Jun 3, 2026Augostini Christopher LDirectoraward3,090$0.00—109,859Jun 4, 2026
Jun 3, 2026Blaylock Ronald EDirectoraward3,090$0.00—121,990Jun 4, 2026
Jun 3, 2026Talisman JonathanDirectoraward3,090$0.00—33,180Jun 4, 2026
Mar 3, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-173,185$72.52$5M59MMar 3, 2026
Mar 3, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-138,991$71.60$3M59MMar 3, 2026
Mar 2, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-1100,897$73.20$7M59MMar 3, 2026
Mar 2, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-145,103$72.29$3M59MMar 3, 2026
Feb 27, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-1147,000$71.63$11M59MFeb 27, 2026
Feb 26, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-1145,491$71.65$10M58MFeb 27, 2026
Feb 26, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-17,509$72.11$541K58MFeb 27, 2026
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-114,356$71.77$1M58MFeb 25, 2026
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1154,512$71.39$11M58MFeb 25, 2026
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1103,192$70.52$7M58MFeb 25, 2026
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-161,594$71.28$4M58MFeb 25, 2026
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-116,410$71.80$1M58MFeb 25, 2026
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1203,590$71.09$14M58MFeb 25, 2026
Feb 20, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1160,582$70.80$11M58MFeb 20, 2026
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1300,986$70.53$21M57MFeb 20, 2026
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-144,014$71.50$3M58MFeb 20, 2026
Feb 18, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-1239,750$70.58$17M57MFeb 18, 2026
Feb 18, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-145,250$70.96$3M57MFeb 18, 2026
Feb 17, 2026Mitsui Sumitomo Insurance CO LTD+1 more10% owneropen-market buy10b5-1281,386$71.19$20M57MFeb 18, 2026
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-14,314$70.30$303K57MFeb 13, 2026
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-1280$71.18$20K57MFeb 13, 2026
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-115,406$69.73$1M57MFeb 13, 2026
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-12,401$72.76$175K57MFeb 13, 2026
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-117,599$71.88$1M57MFeb 13, 2026
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-111,163$71.45$798K57MFeb 11, 2026
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-19,289$69.59$646K57MFeb 11, 2026
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-13,578$70.50$252K57MFeb 11, 2026
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-112,082$69.92$845K57MFeb 11, 2026
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-121,884$69.09$2M57MFeb 11, 2026
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-14,048$70.32$285K56MFeb 11, 2026
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-135,952$69.27$2M56MFeb 11, 2026
Feb 6, 2026MS&AD Insurance Group Holdings, Inc.+1 more10% owneropen-market buy10b5-115,694$70.46$1M56MFeb 6, 2026

Who the insiders are

Everyone who reported a transaction since November 1, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
MS&AD Insurance Group Holdings, Inc.10% ownerFeb 25, 2026open-market buy58M$373M (52)——
Mitsui Sumitomo Insurance CO LTD10% ownerMar 3, 2026open-market buy59M$333M (42)——
Shiel James GEVP - InvestmentsAug 3, 2026award811,283———
Berkley William R JRChairman, President and CEO, Director, 10% ownerAug 3, 2026award5M———
Welt Philip SEVP & SecretaryAug 3, 2026award214,625———
Baio Richard MarkEVP & CFOAug 3, 2026award228,261———
Berkley William RExecutive Chairman, Director, 10% ownerJun 3, 2026award17M———
Ferre Maria LuisaDirectorJun 3, 2026award59,234———
Mattson Marie AngelaDirectorJun 3, 2026award9,667———
Mosley Daniel LynnDirectorJun 3, 2026award14,885———
Farrell Mary CDirectorJun 3, 2026award19,378———
Rusbuldt Robert AlanDirectorJun 3, 2026award5,866———
Augostini Christopher LDirectorJun 3, 2026award109,859———
Blaylock Ronald EDirectorJun 3, 2026award121,990———
Talisman JonathanDirectorJun 3, 2026award33,180———
Sgaglione Lucille TEVPAug 15, 2025tax withholding241,036———

Questions

Are W.R. Berkley Corporation insiders buying or selling?

Over the twelve months to November 1, 2026, no insider at W.R. Berkley Corporation sold stock in the open market, and 2 insiders bought $705M, none by officers or directors. Net, insiders bought $705M. Only open-market purchases and sales are counted.

Who sold the most W.R. Berkley Corporation stock in the last year?

No insider sold W.R. Berkley Corporation stock in the open market in the twelve months to November 1, 2026.

Do W.R. Berkley Corporation executives sell under 10b5-1 plans?

There were no open-market sales in the last twelve months.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on W.R. Berkley Corporation

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.