MITSUI SUMITOMO INSURANCE CO LTD

WRB

MITSUI SUMITOMO INSURANCE CO LTD serves as 10 percent owner at W. R. Berkley Corporation (WRB). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

16 trades

$534.96M

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$534.96M

Companies Traded

WRB

Active Period

Jan 2026 – Feb 2026

16 total trades

Most Recent

Buy WRB

Feb 27, 2026 · $21.49M

MITSUI SUMITOMO INSURANCE CO LTD's Insider Trading at W. R. Berkley Corporation (WRB)

Buys

16 · $534.96M

Sells

0 · $0.00

Total Shares Bought

7,758,029

Total Shares Sold

WRB Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 27, 2026	Buy	300,000	$71.65	$21.49M	58,522,272
Feb 25, 2026	Buy	553,654	$71.13	$39.38M	58,222,272
Feb 20, 2026	Buy	505,582	$70.70	$35.74M	57,668,620
Feb 18, 2026	Buy	566,386	$70.92	$40.17M	57,163,040
Feb 13, 2026	Buy	40,000	$70.93	$2.84M	56,596,652
Feb 11, 2026	Buy	97,996	$69.68	$6.83M	56,556,652
Feb 6, 2026	Buy	40,000	$70.88	$2.84M	56,458,656
Feb 4, 2026	Buy	315,221	$68.05	$21.45M	56,418,656
Jan 30, 2026	Buy	485,000	$68.22	$33.09M	56,103,436
Jan 28, 2026	Buy	1,028,931	$67.35	$69.30M	55,618,436
Jan 23, 2026	Buy	698,000	$67.19	$46.90M	54,589,504
Jan 21, 2026	Buy	630,000	$67.64	$42.61M	53,891,504
Jan 16, 2026	Buy	535,000	$68.49	$36.64M	53,261,504
Jan 14, 2026	Buy	811,041	$68.58	$55.62M	52,726,504
Jan 9, 2026	Buy	470,000	$69.45	$32.64M	51,915,464
Jan 7, 2026	Buy	681,218	$69.61	$47.42M	51,445,464