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Mitsui Sumitomo Insurance Co Ltd's Form 4 filing

Berkley W R Corp (WRB) · filed Jan 16, 2026

Accession no.
0001193125-26-015569
Filed
Jan 16, 2026, 7:00 PM ET
Trade date
Jan 15-16, 2026
Filing delay
1 day
Rule 10b5-1 plan
Checked

This filing lists 4 non-derivative transactions and 0 derivative transactions. Open-market purchases total $36.6M. It was filed 1 day after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Mitsui Sumitomo Insurance Co LtdCIK 000114220610% Owner
MS&AD Insurance Group Holdings, Inc.CIK 000143104810% Owner

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Jan 15, 2026Common StockPPurchaseAcquired+166,907$68.68+$11,462,338.2352,893,411Direct
Jan 15, 2026Common StockPPurchaseAcquired+68,093$69.45+$4,728,868.1952,961,504Direct
Jan 16, 2026Common StockPPurchaseAcquired+241,309$68.03+$16,416,492.5853,202,813Direct
Jan 16, 2026Common StockPPurchaseAcquired+58,691$68.79+$4,037,101.5253,261,504Direct

Footnotes

Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.

Read the original on SEC EDGAR (opens in a new tab)