Arkolith/Insider Trading/WRB

WRB Insider Trading

Berkley W R Corp · full profile →Last filing Jun 3, 2026
Net Buying · 180d
Open-Market Buys (180d)
$316.5M
2 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$316.5M
open market, 180d
Reporting Insiders
2
55 P/S transactions
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Build on these Form 4 transactions

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Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 3, 2026Mosley Daniel LynnDirectorGrant(A)3K—$0
Jun 3, 2026Farrell Mary CDirectorGrant(A)3K—$0
Jun 3, 2026Rusbuldt Robert AlanDirectorGrant(A)3K—$0
Jun 3, 2026Augostini Christopher LDirectorGrant(A)3K—$0
Jun 3, 2026Blaylock Ronald EDirectorGrant(A)3K—$0
Jun 3, 2026Talisman JonathanDirectorGrant(A)3K—$0
Jun 3, 2026Berkley William RExecutive Chairman, Director, 10% OwnerGrant(A)3K—$0
Jun 3, 2026Ferre Maria LuisaDirectorGrant(A)3K—$0
Jun 3, 2026Mattson Marie AngelaDirectorGrant(A)3K—$0
Jun 3, 2026Berkley William R JRPresident and CEO, DirectorGrant(A)3K—$0
Mar 3, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)73K$72.52$5.3M
Mar 3, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)39K$71.60$2.8M
Mar 2, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)101K$73.20$7.4M
Mar 2, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)45K$72.29$3.3M
Feb 27, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)147K$71.63$10.5M
Feb 26, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)145K$71.65$10.4M
Feb 26, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)8K$72.11$541K
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)14K$71.77$1.0M
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)155K$71.39$11.0M
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)103K$70.52$7.3M
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)62K$71.28$4.4M
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)16K$71.80$1.2M
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)204K$71.09$14.5M
Feb 20, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)161K$70.80$11.4M
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)301K$70.53$21.2M
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)44K$71.50$3.1M
Feb 18, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)240K$70.58$16.9M
Feb 18, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)45K$70.96$3.2M
Feb 17, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)281K$71.19$20.0M
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)4K$70.30$303K
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)280$71.18$20K
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)15K$69.73$1.1M
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)2K$72.76$175K
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)18K$71.88$1.3M
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)11K$71.45$798K
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)9K$69.59$646K
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)4K$70.50$252K
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)12K$69.92$845K
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)22K$69.09$1.5M
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)4K$70.32$285K
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)36K$69.27$2.5M
Feb 6, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)16K$70.46$1.1M
Feb 6, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)4K$71.39$307K
Feb 5, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)7K$70.79$462K
Feb 5, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)13K$71.25$960K
Feb 4, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)3K$69.77$180K
Feb 4, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)22K$70.25$1.6M
Feb 3, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)32K$68.87$2.2M
Feb 3, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)8K$67.75$566K
Feb 2, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)237K$67.71$16.1M
Feb 2, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)13K$68.42$900K
Jan 30, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)195K$68.36$13.3M
Jan 29, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)28K$68.56$1.9M
Jan 29, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)262K$68.08$17.9M
Jan 28, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)280K$67.58$18.9M
Jan 28, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)29K$67.89$1.9M
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)12K$66.87$802K
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)326K$67.40$22.0M
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)9K$68.56$588K
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)3K$69.04$184K
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)800$65.86$53K
Jan 26, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)294K$66.86$19.6M
Jan 26, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)76K$67.88$5.2M
Jan 23, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)167K$67.18$11.2M
Jan 23, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)201K$66.77$13.4M
Jan 22, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)330K$67.45$22.3M
Jan 21, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)59K$66.95$4.0M
Jan 21, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)261K$67.60$17.6M
Jan 20, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)265K$67.75$18.0M
Jan 20, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)45K$68.08$3.1M
Jan 16, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)241K$68.03$16.4M
Jan 16, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)59K$68.79$4.0M
Jan 15, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)68K$69.45$4.7M
Jan 15, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)167K$68.68$11.5M
Jan 14, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)208K$69.23$14.4M
Jan 14, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)22K$68.80$1.5M
Jan 13, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)119K$67.82$8.0M
Jan 13, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)206K$68.15$14.1M
Jan 12, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)256K$68.73$17.6M
Jan 9, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)8K$70.12$571K
Jan 9, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)161K$68.48$11.0M
Jan 9, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)106K$69.56$7.4M
Jan 8, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)4K$68.79$288K
Jan 8, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)39K$69.69$2.7M
Jan 8, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)152K$70.32$10.7M
Jan 7, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)10K$69.20$718K
Jan 7, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)255K$68.47$17.4M
Jan 6, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)123K$69.93$8.6M
Jan 6, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)92K$70.21$6.5M
Jan 5, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)154K$70.78$10.9M
Jan 5, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)36K$70.23$2.5M
Jan 5, 2026Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)11K$69.20$785K
Jan 2, 2026MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)238K$69.35$16.5M
Dec 31, 2025MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)230K$70.27$16.2M
Dec 30, 2025MS&AD Insurance Group Holdings, Inc.10% OwnerBuy(P)205K$70.83$14.5M
Dec 29, 2025Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)205K$70.77$14.5M
Dec 26, 2025Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)220K$70.56$15.5M
Dec 24, 2025Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)220K$70.51$15.5M
Dec 23, 2025Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)233K$70.31$16.4M
Dec 23, 2025Mitsui Sumitomo Insurance Co Ltd10% OwnerBuy(P)2K$71.15$144K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-21. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).