W.R. Berkley Insider Trades

NYSE: WRBFinanceProperty-Casualty InsurersUSD

72.18+0.13 (+0.18%)

Market open · Delayed 15 min · as of Oct 9, 2:05 PM ET

Last 12 months

Purchases: 82 · $553.70M
Sales: 0 · $0
Shares bought / sold: 8.02M / 0
Net activity: Net buying $553.7 million

W.R. Berkley insider activity

Over the last 12 months, W.R. Berkley insiders reported 100 transactions on SEC Form 4: 82 open-market purchases and 0 sales. Insiders bought $553.7 million and sold $0 worth of stock, for net insider buying of $553.7 million. The most recent filing shows BERKLEY WILLIAM R JR (Chairman, President and CEO) reporting a transaction in 98,593 shares on Aug 3, 2026.

Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put WRB's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

WRB insider transactions

W.R. Berkley insider transactions
Date	Insider	Type	Shares	Price	Value	Owned after	Filing
Aug 3, 2026	Baio Richard MarkEVP & CFO	Tax withholding	650	$72.29	$46.99K	227.61K	Form 4
Aug 3, 2026	Baio Richard MarkEVP & CFO	Award	14,086	—	—	228.26K	Form 4
Aug 3, 2026	Welt Philip SEVP & Secretary	Tax withholding	592	$72.29	$42.79K	214.03K	Form 4
Aug 3, 2026	Welt Philip SEVP & Secretary	Award	14,086	—	—	214.63K	Form 4
Aug 3, 2026	SHIEL JAMES GEVP - Investments	Tax withholding	650	$72.29	$46.99K	810.63K	Form 4
Aug 3, 2026	SHIEL JAMES GEVP - Investments	Award	14,086	—	—	811.28K	Form 4
Aug 3, 2026	BERKLEY WILLIAM R JRChairman, President and CEO	Tax withholding	4,139	$72.29	$299.20K	4.65M	Form 4
Aug 3, 2026	BERKLEY WILLIAM R JRChairman, President and CEO	Award	98,593	—	—	4.65M	Form 4
Jun 3, 2026	BLAYLOCK RONALD EDirector	Award	3,090	—	—	121.99K	Form 4
Jun 3, 2026	Mattson Marie AngelaDirector	Award	3,090	—	—	9.67K	Form 4
Jun 3, 2026	Rusbuldt Robert AlanDirector	Award	3,090	—	—	5.87K	Form 4
Jun 3, 2026	Talisman JonathanDirector	Award	3,090	—	—	33.18K	Form 4
Jun 3, 2026	Augostini Christopher LDirector	Award	3,090	—	—	109.86K	Form 4
Jun 3, 2026	Farrell Mary CDirector	Award	3,090	—	—	19.38K	Form 4
Jun 3, 2026	BERKLEY WILLIAM R JRPresident and CEO	Award	3,090	—	—	4.56M	Form 4
Jun 3, 2026	Ferre Maria LuisaDirector	Award	3,090	—	—	59.23K	Form 4
Jun 3, 2026	Mosley Daniel LynnDirector	Award	3,090	—	—	14.88K	Form 4
Jun 3, 2026	BERKLEY WILLIAM RExecutive Chairman	Award	3,090	—	—	17.37M	Form 4
Mar 3, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	73,185	$72.52	$5.31M	58.78M	Form 4
Mar 3, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	38,991	$71.60	$2.79M	58.71M	Form 4
Mar 2, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	100,897	$73.20	$7.39M	58.67M	Form 4
Mar 2, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	45,103	$72.29	$3.26M	58.57M	Form 4
Feb 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	147,000	$71.63	$10.53M	58.52M	Form 4
Feb 26, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	7,509	$72.11	$541.50K	58.38M	Form 4
Feb 26, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	145,491	$71.65	$10.42M	58.37M	Form 4
Feb 25, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	14,356	$71.77	$1.03M	58.22M	Form 4
Feb 25, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	154,512	$71.39	$11.03M	58.21M	Form 4
Feb 24, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	61,594	$71.28	$4.39M	58.05M	Form 4
Feb 24, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	103,192	$70.52	$7.28M	57.99M	Form 4
Feb 23, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	16,410	$71.80	$1.18M	57.89M	Form 4
Feb 23, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	203,590	$71.09	$14.47M	57.87M	Form 4
Feb 20, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	160,582	$70.80	$11.37M	57.67M	Form 4
Feb 19, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	44,014	$71.50	$3.15M	57.51M	Form 4
Feb 19, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	300,986	$70.53	$21.23M	57.46M	Form 4
Feb 18, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	45,250	$70.96	$3.21M	57.16M	Form 4
Feb 18, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	239,750	$70.58	$16.92M	57.12M	Form 4
Feb 17, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	281,386	$71.19	$20.03M	56.88M	Form 4
Feb 13, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	280	$71.18	$19.93K	56.60M	Form 4
Feb 13, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	4,314	$70.30	$303.26K	56.60M	Form 4
Feb 13, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	15,406	$69.73	$1.07M	56.59M	Form 4
Feb 12, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	2,401	$72.76	$174.69K	56.58M	Form 4
Feb 12, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	17,599	$71.88	$1.27M	56.57M	Form 4
Feb 11, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	11,163	$71.45	$797.59K	56.56M	Form 4
Feb 11, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	3,578	$70.50	$252.27K	56.55M	Form 4
Feb 11, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	9,289	$69.59	$646.40K	56.54M	Form 4
Feb 10, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	12,082	$69.92	$844.79K	56.53M	Form 4
Feb 10, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	21,884	$69.09	$1.51M	56.52M	Form 4
Feb 9, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	4,048	$70.32	$284.65K	56.50M	Form 4
Feb 9, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	35,952	$69.27	$2.49M	56.49M	Form 4
Feb 6, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	4,306	$71.39	$307.41K	56.46M	Form 4
Feb 6, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	15,694	$70.46	$1.11M	56.45M	Form 4
Feb 5, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	13,472	$71.25	$959.92K	56.44M	Form 4
Feb 5, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	6,528	$70.79	$462.11K	56.43M	Form 4
Feb 4, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	22,415	$70.25	$1.57M	56.42M	Form 4
Feb 4, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	2,585	$69.77	$180.34K	56.40M	Form 4
Feb 3, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	31,653	$68.87	$2.18M	56.39M	Form 4
Feb 3, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	8,347	$67.75	$565.50K	56.36M	Form 4
Feb 2, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	13,159	$68.42	$900.30K	56.35M	Form 4
Feb 2, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	237,062	$67.71	$16.05M	56.34M	Form 4
Jan 30, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	195,000	$68.36	$13.33M	56.10M	Form 4
Jan 29, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	27,718	$68.56	$1.90M	55.91M	Form 4
Jan 29, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	262,282	$68.08	$17.86M	55.88M	Form 4
Jan 28, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	28,577	$67.89	$1.94M	55.62M	Form 4
Jan 28, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	280,354	$67.58	$18.95M	55.59M	Form 4
Jan 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	2,671	$69.04	$184.39K	55.31M	Form 4
Jan 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	8,582	$68.56	$588.39K	55.31M	Form 4
Jan 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	325,960	$67.40	$21.97M	55.30M	Form 4
Jan 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	11,987	$66.87	$801.52K	54.97M	Form 4
Jan 27, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	800	$65.86	$52.69K	54.96M	Form 4
Jan 26, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	76,389	$67.88	$5.19M	54.96M	Form 4
Jan 26, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	293,611	$66.86	$19.63M	54.88M	Form 4
Jan 23, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	166,919	$67.18	$11.21M	54.59M	Form 4
Jan 23, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	201,081	$66.77	$13.43M	54.42M	Form 4
Jan 22, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	330,000	$67.45	$22.26M	54.22M	Form 4
Jan 21, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	260,998	$67.60	$17.64M	53.89M	Form 4
Jan 21, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	59,002	$66.95	$3.95M	53.63M	Form 4
Jan 20, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	44,994	$68.08	$3.06M	53.57M	Form 4
Jan 20, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	265,006	$67.75	$17.95M	53.53M	Form 4
Jan 16, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	58,691	$68.79	$4.04M	53.26M	Form 4
Jan 16, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	241,309	$68.03	$16.42M	53.20M	Form 4
Jan 15, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	68,093	$69.45	$4.73M	52.96M	Form 4
Jan 15, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	166,907	$68.68	$11.46M	52.89M	Form 4
Jan 14, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	208,272	$69.23	$14.42M	52.73M	Form 4
Jan 14, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	21,728	$68.80	$1.49M	52.52M	Form 4
Jan 13, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	206,499	$68.15	$14.07M	52.50M	Form 4
Jan 13, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	118,501	$67.82	$8.04M	52.29M	Form 4
Jan 12, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	256,041	$68.73	$17.60M	52.17M	Form 4
Jan 9, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	8,150	$70.12	$571.45K	51.92M	Form 4
Jan 9, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	105,674	$69.56	$7.35M	51.91M	Form 4
Jan 9, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	161,176	$68.48	$11.04M	51.80M	Form 4
Jan 8, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	151,511	$70.32	$10.65M	51.64M	Form 4
Jan 8, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	39,302	$69.69	$2.74M	51.49M	Form 4
Jan 8, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	4,187	$68.79	$288.03K	51.45M	Form 4
Jan 7, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	10,378	$69.20	$718.20K	51.45M	Form 4
Jan 7, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	254,622	$68.47	$17.43M	51.44M	Form 4
Jan 6, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	92,357	$70.21	$6.48M	51.18M	Form 4
Jan 6, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	122,931	$69.93	$8.60M	51.09M	Form 4
Jan 5, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	153,686	$70.78	$10.88M	50.97M	Form 4
Jan 5, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	35,894	$70.23	$2.52M	50.81M	Form 4
Jan 5, 2026	MITSUI SUMITOMO INSURANCE CO LTD & MS&AD Insurance Group Holdings, Inc.10% Owner	Buy	11,350	$69.20	$785.42K	50.78M	Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4