W.r. Berkley Corporation · NYSE:WRB

Mitsui Sumitomo Insurance Co Ltd reported a 12.80% stake in W.r. Berkley Corporation (Schedule 13D)

Event Dec 4, 2025 · Filed Dec 11, 2025

Mitsui Sumitomo Insurance Co Ltd reported a 12.80% stake in W.r. Berkley Corporation, 48,601,588 shares, with active intent on Dec 4, 2025. Filed Dec 11, 2025 (Schedule 13D).

Stake
12.80%
Shares
48,601,588
Intent
Active
What changed
Crossed above 5%
Filed together
2 holders

The filing in full

HolderStakeShares
Mitsui Sumitomo Insurance Co., Ltd.12.80%48,601,588
MS&AD Insurance Group Holdings, Inc.12.80%48,601,588

Source

View original at SEC

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