Lucille T. Sgaglione - 15 Aug 2025 Form 4 Insider Report for BERKLEY W R CORP (WRB)

Role: EVP
Signature: Lucille T. Sgaglione
Issuer symbol: WRB
Transactions as of: 15 Aug 2025
Net transactions value: -$51,075
Form type: 4
Filing time: 19 Aug 2025, 18:31:59 UTC
Previous filing: 19 Aug 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sgaglione Lucille T	EVP	W. R. BERKLEY CORPORATION, 475 STEAMBOAT ROAD, GREENWICH	Lucille T. Sgaglione	19 Aug 2025	0001491845

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WRB	Common Stock	Award	$0	+16,126	+7.1%	$0.000000	241,753	15 Aug 2025	Direct	F1
transaction	WRB	Common Stock	Tax liability	$51,075	-717	-0.3%	$71.24	241,036	15 Aug 2025	Direct	F2, F3
holding	WRB	Common Stock						8,748	15 Aug 2025	By ESPP

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the vesting of tranches of performance-based restricted stock units ("RSUs") granted in 2020, 2021 and 2022 under the W. R. Berkley Corporation 2018 Stock Incentive Plan for the three-year performance period ending June 30, 2025 (consisting of 6,396 shares; 5,549 shares; and 4,181 shares, respectively).
F2	Represents payment of tax liability by withholding securities incident to the vesting of RSUs.
F3	Represents shares of common stock underlying RSUs, all of which have vested (the receipt of which has been deferred) and does not include unvested shares of common stock underlying performance-based RSUs.