Mark Jeffery Penn - 07 Mar 2026 Form 4 Insider Report for Stagwell Inc (STGW)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Mark Penn
Issuer symbol: STGW
Transactions as of: 07 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 10 Mar 2026, 19:03:19 UTC
Previous filing: 05 Mar 2026
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Penn Mark Jeffery	Chief Executive Officer, Director, 10%+ Owner	C/O STAGWELL INC., ONE WORLD TRADE CENTER, FLOOR 65, NEW YORK	/s/ Mark Penn	10 Mar 2026	0001771735

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STGW	Class A Common Stock	Tax liability		-75,447	-0.28%	$5.24^*	27,197,765	07 Mar 2026	Direct	F1
holding	STGW	Class A Common Stock						2,000,000	07 Mar 2026	See Footnote	F2

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

Explanation of Responses:

Id	Content
F1	Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock units.
F2	The shares are held by The Stagwell Group LLC ("Stagwell Group"). The Reporting Person is the controlling person of Stagwell Group.