What plan governed the 3,090-share award to the WRB director?

The 3,090-share award was granted under the W. R. Berkley Corporation 2009 Directors Stock Plan, as amended and restated. This plan provides equity compensation to directors, and the footnote explicitly states the reported grant was made pursuant to its terms.

Berkley director receives 3,090-share stock grant

Mattson Marie Angela reported acquisition or exercise transactions in this Form 4 filing.

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Form Type

Rhea-AI Filing Summary

Mattson Marie Angela reported acquisition or exercise transactions in this Form 4 filing.

BERKLEY W R CORP director Marie Angela Mattson reported a stock award of 3,090 shares of Common Stock. The award was granted on June 3, 2026 under the W. R. Berkley Corporation 2009 Directors Stock Plan, as amended and restated. The grant carried a price of $0.00 per share as compensation rather than a market purchase. Following this award, she directly holds a total of 9,667 shares of Common Stock.

Insider Trade Summary

Grant/Award: 3,090 shares

Grant/Award 1 txn

Insider Mattson Marie Angela

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,090	$0.00	$0.00

Holdings After Transaction: Common Stock — 9,667 shares (Direct)

Footnotes (1)

F1. Represents award granted pursuant to the terms of the W. R. Berkley Corporation 2009 Directors Stock Plan, as amended and restated.

Key Figures

Shares granted: 3,090 shares Grant price: $0.00 per share Shares held after grant: 9,667 shares +1 more

4 metrics

Shares granted 3,090 shares Common Stock award on June 3, 2026

Grant price $0.00 per share Director stock award, non-market acquisition

Shares held after grant 9,667 shares Total direct holdings following reported transaction

Transaction code A Grant, award, or other acquisition of Common Stock

Key Terms

Grant, award, or other acquisition, Common Stock, 2009 Directors Stock Plan, Form 4

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

2009 Directors Stock Plan financial

"award granted pursuant to the terms of the W. R. Berkley Corporation 2009 Directors Stock Plan"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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What did WRB director Marie Angela Mattson report on this Form 4?

Marie Angela Mattson reported receiving an award of 3,090 shares of W. R. Berkley Common Stock. The shares were granted as compensation rather than bought in the market, and they increased her direct holdings to 9,667 shares after the transaction.

Was the WRB Form 4 transaction a stock purchase or a grant?

The Form 4 shows a stock grant, not a purchase. Code A indicates a grant, award, or other acquisition, and the reported price was $0.00 per share, consistent with shares received as director compensation under the company’s stock plan.

How many W. R. Berkley shares does Marie Angela Mattson own after this award?

After the 3,090-share award, Marie Angela Mattson directly holds 9,667 shares of W. R. Berkley Common Stock. This total reflects her position immediately following the reported grant under the company’s 2009 Directors Stock Plan, as amended and restated.

Did the WRB director pay anything for the 3,090 granted shares?

No cash was paid for the 3,090 granted shares. The Form 4 reports a transaction price of $0.00 per share, indicating the Common Stock was received as a compensation award rather than purchased in an open-market or privately negotiated transaction.

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Accepted by SEC EDGAR 06/04/2026 - 05:00 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mattson Marie Angela

(Last)

(First)

(Middle)

W. R. BERKLEY CORPORATION

475 STEAMBOAT ROAD

(Street)

GREENWICH

CONNECTICUT

06830

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BERKLEY W R CORP [ WRB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/03/2026		A		3,090⁽¹⁾	A	$0	9,667	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents award granted pursuant to the terms of the W. R. Berkley Corporation 2009 Directors Stock Plan, as amended and restated.

	Marie A. Mattson	06/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR