Omnicom (NYSE: OMC) director reports 22,269-share stake from IPG merger

Rhea-AI Filing Summary

Omnicom Group Inc. director Patrick Moore reported acquiring common stock in connection with the company’s merger with The Interpublic Group of Companies, Inc. (IPG). On 11/26/2025, Moore acquired 22,269 shares of Omnicom common stock, par value $0.15 per share, and now beneficially owns the same amount directly. The shares were received when Moore’s IPG common stock and restricted stock awards were converted into Omnicom common stock under the terms of the previously signed merger agreement, after IPG became a wholly owned subsidiary of Omnicom.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Moore Patrick Q

(Last) (First) (Middle)

C/O OMNICOM GROUP INC.

280 PARK AVENUE

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
OMNICOM GROUP INC. [ OMC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/26/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.15 per share	11/26/2025		A		22,269	A	(1)	22,269	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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 and restricted stock awards converted into the Issuer's common stock, according to the terms of the Merger Agreement.

	/s/ Eric J. Cleary, Attorney-in-Fact for Patrick Moore	11/28/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Omnicom (OMC) disclose in this Form 4?

Omnicom disclosed that director Patrick Moore acquired 22,269 shares of Omnicom common stock on 11/26/2025, as reported in a Form 4 filing.

How many Omnicom (OMC) shares does the reporting person now own?

After the reported transaction, Patrick Moore beneficially owns 22,269 shares of Omnicom Group Inc. common stock, held in direct ownership form.

What caused the share acquisition reported for Omnicom (OMC)?

The acquisition resulted from the merger where EXT Subsidiary Inc. merged into IPG, making IPG a wholly owned subsidiary of Omnicom, and Moore’s IPG common and restricted stock awards were converted into Omnicom common stock.

What is the relationship of the reporting person to Omnicom (OMC)?

The reporting person, Patrick Moore, is identified as a Director of Omnicom Group Inc. in the filing.

Was this Omnicom (OMC) transaction part of a merger agreement?

Yes. The filing explains that the transaction was made under an Agreement and Plan of Merger dated December 8, 2024 among Omnicom, IPG, and EXT Subsidiary Inc., which governed the conversion of IPG equity into Omnicom stock.

Is the Omnicom (OMC) Form 4 filed by one or multiple reporting persons?

The Form 4 is indicated as being filed by one reporting person, reflecting Patrick Moore’s holdings and transaction.