Insidervault
LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
WRBCIK 0000011544

BERKLEY W R CORP

113 transactions by 14 insiders, from December 18, 2025 to August 3, 2026.

Transactions
11314 insiders
Bought · P
$705.5Mopen market
Sold · S
Nonenobody sold on the open market
Net
+$705.5Mnet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
James G. ShielEVP3———
William R. Berkley Jr.CEO3———
Philip S. WeltEVP2———
Richard Mark BaioCFO2———
Jonathan TalismanDir1———
Daniel Lynn MosleyDir1———
Marie Angela MattsonDir1———
William R. BerkleyChair1———
Robert Alan RusbuldtDir1———
Ronald E. BlaylockDir1———
Maria Luisa FerreDir1———
Mary C. FarrellDir1———
Christopher L. AugostiniDir1———

Large holders and funds

Holders above 10%, often funds. They file the same form, but they trade for portfolio reasons, not because of what they know.

InsiderTradesPlannedBoughtSold
MITSUI SUMITOMO INSURANCE CO LTD10%9494/94$705.5M—

All transactions

113 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Philip S. WeltEVPAug 3F592$72.29$43K
Philip S. WeltEVPAug 3A14,086$0.00—
Richard Mark BaioCFOAug 3F650$72.29$47K
Richard Mark BaioCFOAug 3A14,086$0.00—
William R. Berkley Jr.CEOAug 3F4,139$72.29$299K
William R. Berkley Jr.CEOAug 3A98,593$0.00—
James G. ShielEVPAug 3F650$72.29$47K
James G. ShielEVPAug 3A14,086$0.00—
William R. BerkleyChairJun 3A3,090$0.00—
Maria Luisa FerreDirJun 3A3,090$0.00—
Marie Angela MattsonDirJun 3A3,090$0.00—
William R. Berkley Jr.CEOJun 3A3,090$0.00—
Daniel Lynn MosleyDirJun 3A3,090$0.00—
Mary C. FarrellDirJun 3A3,090$0.00—
Robert Alan RusbuldtDirJun 3A3,090$0.00—
Ronald E. BlaylockDirJun 3A3,090$0.00—
Jonathan TalismanDirJun 3A3,090$0.00—
Christopher L. AugostiniDirJun 3A3,090$0.00—
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTMar 3PPLAN73,185$72.52$5.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTMar 3PPLAN38,991$71.60$2.8M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTMar 2PPLAN100,897$73.20$7.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTMar 2PPLAN45,103$72.29$3.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 27PPLAN147,000$71.63$10.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 26PPLAN7,509$72.11$542K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 26PPLAN145,491$71.65$10.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 25PPLAN14,356$71.77$1.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 25PPLAN154,512$71.39$11.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 24PPLAN61,594$71.28$4.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 24PPLAN103,192$70.52$7.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 23PPLAN16,410$71.80$1.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 23PPLAN203,590$71.09$14.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 20PPLAN160,582$70.80$11.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 19PPLAN44,014$71.50$3.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 19PPLAN300,986$70.53$21.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 18PPLAN45,250$70.96$3.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 18PPLAN239,750$70.58$16.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 17PPLAN281,386$71.19$20.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 13PPLAN280$71.18$20K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 13PPLAN4,314$70.30$303K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 13PPLAN15,406$69.73$1.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 12PPLAN2,401$72.76$175K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 12PPLAN17,599$71.88$1.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 11PPLAN11,163$71.45$798K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 11PPLAN3,578$70.50$252K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 11PPLAN9,289$69.59$646K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 10PPLAN12,082$69.92$845K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 10PPLAN21,884$69.09$1.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 9PPLAN4,048$70.32$285K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 9PPLAN35,952$69.27$2.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 6PPLAN4,306$71.39$307K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 6PPLAN15,694$70.46$1.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 5PPLAN13,472$71.25$960K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 5PPLAN6,528$70.79$462K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 4PPLAN22,415$70.25$1.6M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 4PPLAN2,585$69.77$180K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 3PPLAN31,653$68.87$2.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 3PPLAN8,347$67.75$565K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 2PPLAN13,159$68.42$900K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTFeb 2PPLAN237,062$67.71$16.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 30PPLAN195,000$68.36$13.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 29PPLAN27,718$68.56$1.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 29PPLAN262,282$68.08$17.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 28PPLAN28,577$67.89$1.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 28PPLAN280,354$67.58$18.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 27PPLAN2,671$69.04$184K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 27PPLAN8,582$68.56$588K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 27PPLAN325,960$67.40$22.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 27PPLAN11,987$66.87$802K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 27PPLAN800$65.86$53K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 26PPLAN76,389$67.88$5.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 26PPLAN293,611$66.86$19.6M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 23PPLAN166,919$67.18$11.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 23PPLAN201,081$66.77$13.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 22PPLAN330,000$67.45$22.3M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 21PPLAN260,998$67.60$17.6M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 21PPLAN59,002$66.95$4.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 20PPLAN44,994$68.08$3.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 20PPLAN265,006$67.75$18.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 16PPLAN58,691$68.79$4.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 16PPLAN241,309$68.03$16.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 15PPLAN68,093$69.45$4.7M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 15PPLAN166,907$68.68$11.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 14PPLAN208,272$69.23$14.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 14PPLAN21,728$68.80$1.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 13PPLAN206,499$68.15$14.1M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 13PPLAN118,501$67.82$8.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 12PPLAN256,041$68.73$17.6M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 9PPLAN8,150$70.12$571K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 9PPLAN105,674$69.56$7.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 9PPLAN161,176$68.48$11.0M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 8PPLAN151,511$70.32$10.7M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 8PPLAN39,302$69.69$2.7M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 8PPLAN4,187$68.79$288K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 7PPLAN10,378$69.20$718K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 7PPLAN254,622$68.47$17.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 6PPLAN92,357$70.21$6.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 6PPLAN122,931$69.93$8.6M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 5PPLAN153,686$70.78$10.9M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 5PPLAN35,894$70.23$2.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 5PPLAN11,350$69.20$785K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTJan 2PPLAN237,734$69.35$16.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 31PPLAN230,000$70.27$16.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 30PPLAN205,000$70.83$14.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 29PPLAN205,000$70.77$14.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 26PPLAN220,000$70.56$15.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 24PPLAN220,000$70.51$15.5M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 23PPLAN2,027$71.15$144K
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 23PPLAN232,546$70.31$16.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 22PPLAN162,060$70.33$11.4M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 22PPLAN39,940$69.97$2.8M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 19PPLAN204,000$69.50$14.2M
MITSUI SUMITOMO INSURANCE CO LTD10%JOINTDec 18PPLAN204,350$69.38$14.2M
James G. ShielEVPDec 18G1,250$0.00—