PHILIPPE KRAKOWSKY - 26 Nov 2025 Form 4 Insider Report for OMNICOM GROUP INC. (OMC)

Role: Co-President and Co-COO, Director
Signature: /s/ Eric J. Cleary, Attorney-in-Fact for Philippe Krakowsky
Issuer symbol: OMC
Transactions as of: 26 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 28 Nov 2025, 16:30:04 UTC
Previous filing: 04 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KRAKOWSKY PHILIPPE	Co-President and Co-COO, Director	C/O OMNICOM GROUP INC., 280 PARK AVENUE, NEW YORK	/s/ Eric J. Cleary, Attorney-in-Fact for Philippe Krakowsky	28 Nov 2025	0001214656

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OMC	Common Stock, par value $0.15 per share	Award		+104,299			104,299	26 Nov 2025	Direct	F1

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	OMC	Stock Option (right to buy)	Award		+86,000			86,000	26 Nov 2025	Common Stock	86,000	$67.82	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Pursuant to that certain Agreement and Plan of Merger, dated as of December 8, 2024 (the "Merger Agreement"), by and among the Issuer, The Interpublic Group of Companies, Inc. ("IPG") and EXT Subsidiary Inc. ("Merger Sub"), Merger Sub merged with and into IPG, with IPG surviving as a wholly owned subsidiary of the Issuer. Pursuant to the Merger Agreement, the Reporting Person's IPG common stock converted into the Issuer's common stock, according to the terms of the Merger Agreement.
F2	Pursuant to the Merger Agreement, the Reporting Person's option to purchase IPG common stock converted into a vested option to purchase Issuer common stock, according to the terms of the Merger Agreement.

Content

Pursuant to that certain Agreement and Plan of Merger, dated as of December 8, 2024 (the "Merger Agreement"), by and among the Issuer, The Interpublic Group of Companies, Inc. ("IPG") and EXT Subsidiary Inc. ("Merger Sub"), Merger Sub merged with and into IPG, with IPG surviving as a wholly owned subsidiary of the Issuer. Pursuant to the Merger Agreement, the Reporting Person's IPG common stock converted into the Issuer's common stock, according to the terms of the Merger Agreement.

Pursuant to the Merger Agreement, the Reporting Person's option to purchase IPG common stock converted into a vested option to purchase Issuer common stock, according to the terms of the Merger Agreement.