Mark Jeffery Penn - 11 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: 11 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 13 Mar 2026, 19:33:54 UTC
Previous filing: 10 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	13 Mar 2026	0001771735

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STGW	Class A Common Stock	Disposed to Issuer		-4,572,207	-17%	$6.17^*	22,625,558	11 Mar 2026	Direct	F1, F2
holding	STGW	Class A Common Stock						2,000,000	11 Mar 2026	See Footnote	F3

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

Explanation of Responses:

Id	Content
F1	Represents shares repurchased by the Issuer from the Reporting Person in connection with the Reporting Person's tax obligations resulting from the April 4, 2025 exchange by Stagwell Media LP of shares of Class C Common Stock of the Issuer, together with the corresponding interest in a subsidiary of the Issuer, for shares of Class A Common Stock (the "Exchange"). The shares repurchased are a portion of the shares distributed to the Reporting Person as a result of the Exchange.
F2	Reflects a 1% discount to the closing price of the Class A Common Stock on the transaction date.
F3	The shares are held by The Stagwell Group LLC ("Stagwell Group"). The Reporting Person is the controlling person of Stagwell Group.