Michael Jay Sacks - 14 Nov 2025 Form 4 Insider Report for GCM Grosvenor Inc. (GCMG)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Burke Montgomery, Attorney-in-Fact
Issuer symbol: GCMG
Transactions as of: 14 Nov 2025
Transactions value $: -$9
Form type: 4
Filing time: 18 Nov 2025, 06:02:58 UTC
Previous filing: 12 May 2025
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
Sacks Michael Jay	Chief Executive Officer, Director, 10%+ Owner	C/O GCM GROSVENOR INC., 900 NORTH MICHIGAN AVENUE, SUITE 1100, CHICAGO	/s/ Burke Montgomery, Attorney-in-Fact	17 Nov 2025	0001509764
Grosvenor Holdings, L.L.C.	10%+ Owner	C/O GCM GROSVENOR INC., 900 NORTH MICHIGAN AVENUE, SUITE 1100, CHICAGO	/s/ Burke Montgomery, Attorney-in-Fact	17 Nov 2025	0001743987

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GCMG	Class A Common Stock	Exercise of in-the-money or at-the-money derivative security	$10.4M	+900K		$11.50	900K	14 Nov 2025	See footnotes	F1
transaction	GCMG	Class A Common Stock	Other	-$10.4M	-893K	-99.22%	$11.59	6.99K	14 Nov 2025	See footnotes	F1, F2

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	Warrants	Exercise of in-the-money or at-the-money derivative security	$0	-900K	-100%	$0.00	0	14 Nov 2025	Class A Common Stock	900K	$11.50	See footnotes	F1

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

Explanation of Responses:

Id	Content
F1	Represents securities held directly by Grosvenor Holdings, L.L.C. The Reporting Person is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. , GCM Grosvenor Management, L.L.C. and GCM V, L.L.C.
F2	The Reporting Person exercised 900,000 warrants to purchase 900,000 shares of the Issuer's Class A Common Stock at an exercise price of $11.50 per share. The Reporting Person paid the exercise price on a cashless basis, resulting in withholding of 893,012 of the warrant shares to pay the exercise price and issuing to the Reporting Person the remaining 6,988 shares. The warrant shares withheld represent a reduction of shares issued to the Reporting Person and do not constitute any open-market sale.

Content

Represents securities held directly by Grosvenor Holdings, L.L.C. The Reporting Person is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. , GCM Grosvenor Management, L.L.C. and GCM V, L.L.C.

The Reporting Person exercised 900,000 warrants to purchase 900,000 shares of the Issuer's Class A Common Stock at an exercise price of $11.50 per share. The Reporting Person paid the exercise price on a cashless basis, resulting in withholding of 893,012 of the warrant shares to pay the exercise price and issuing to the Reporting Person the remaining 6,988 shares. The warrant shares withheld represent a reduction of shares issued to the Reporting Person and do not constitute any open-market sale.