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Mitsui Sumitomo Insurance Co Ltd

10% Owner

4 companies

Insider Signal Score

42
Weak
Trades Analyzed
18
12M Win Rate
-
Avg 3M Return
-5.2%
Avg 12M Return
-

Mitsui Sumitomo Insurance Co Ltd is a 10% Owner at WRB-PF with holdings across 4 companies. Recent SEC Form 4 filings include 19 buys and 0 sells.

Estimated insider holdings value: $6638.7M based on current market prices.

Holdings by Company

WRB-PFFeb 18, 2026
Current Shares57.16M
Value$1.07B
Net Activity+2.12M
Bought: 2.12MSold: 0
WRB-PHFeb 13, 2026
Current Shares56.60M
Value$865.36M
Net Activity+40.0K
Bought: 40.0KSold: 0
WRB-PEJan 23, 2026
Current Shares54.42M
Value$1.16B
Net Activity+1.86M
Bought: 1.86MSold: 0
WRBJan 14, 2026
Current Shares52.73M
Value$3.54B
Net Activity+4.12M
Bought: 4.12MSold: 0

Transaction History

Showing 4 filings (page 2)
DateTickerRoleTypeSharesPriceValueChg%3M12MSEC
Jan 7, 2026
WRB
Berkley W R Corp
10% OwnerBuy681,218$69.61$47,416,247.32+0.2%-2.6%-
Jan 2, 2026
WRB
Berkley W R Corp
10% OwnerBuy672,734$70.11$47,167,124.11+0.4%-4.9%-
Dec 29, 2025
WRB
Berkley W R Corp
10% OwnerBuy879,573$70.53$62,037,865.93+0.4%-6.4%-
Dec 22, 2025
WRB
Berkley W R Corp
10% OwnerBuy610,350$69.71$42,548,370.17+0.3%-6.7%-
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