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Mitsui Sumitomo Insurance Co Ltd's Form 4 filing

Berkley W R Corp (WRB) · filed Feb 18, 2026

Accession no.
0001193125-26-057634
Filed
Feb 18, 2026, 6:30 PM ET
Trade date
Feb 17-18, 2026
Filing delay
1 day
Rule 10b5-1 plan
Checked

This filing lists 3 non-derivative transactions. Open-market purchases total $40.2M. 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
Feb 17, 2026Common StockPPurchaseAcquired+281,386$71.19F2+$20,032,854.1956,878,038Direct
Feb 18, 2026Common StockPPurchaseAcquired+239,750$70.58F4+$16,922,729.7857,117,788Direct
Feb 18, 2026Common StockPPurchaseAcquired+45,250$70.96F5+$3,210,908.3357,163,038Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F2

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $70.595 to $71.573. The Reporting Persons undertake to provide to W.R. Berkley Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote and in footnotes 4 and 5.

Referenced by the price of 1 transaction in Table I.

F4

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $69.9646 to $70.90.

Referenced by the price of 1 transaction in Table I.

F5

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $70.9003 to $71.435.

Referenced by the price of 1 transaction in Table I.

Remarks

MSI, the Issuer and WR Berkley & Others LLC ("WRBO") are party to certain agreements described in, and filed as exhibits to, the Reporting Persons' Schedule 13D filed with the U.S. Securities and Exchange Commission on December 11, 2025. The Reporting Persons disclaim beneficial ownership of the securities of the Issuer owned by WRBO and disclaim that the Reporting Persons and WRBO constitute a "group" within the meaning of Rule 13d-5(b)(1) under the Securities Exchange Act of 1934, as amended.

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