Kathleen Patricia Sullivan - 15 Nov 2025 Form 4 Insider Report for GCM Grosvenor Inc. (GCMG)

Role: Principal Accounting Officer
Signature: /s/ Burke Montgomery, Attorney-in-Fact
Issuer symbol: GCMG
Transactions as of: 15 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 18 Nov 2025, 06:03:27 UTC
Previous filing: 13 Aug 2025
Next filing: 03 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SULLIVAN KATHLEEN PATRICIA	Principal Accounting Officer	C/O GCM GROSVENOR INC., 900 NORTH MICHIGAN AVENUE, SUITE 1100, CHICAGO	/s/ Burke Montgomery, Attorney-in-Fact	17 Nov 2025	0001684847

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GCMG	Restricted Stock Units	Award	$0	+13,409		$0.000000	13,409	15 Nov 2025	Class A Common Stock	13,409		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.
F2	Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

Content

Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.