Omnicom director updates holdings after deferred stock election

Omnicom Group Inc. director Leonard S. Coleman reported a routine change in his shareholdings.

Rhea-AI Filing Summary

Omnicom Group Inc. director Leonard S. Coleman reported a routine change in his shareholdings. On 01/01/2026, he acquired 634.68 shares of Omnicom common stock at a price of $0 per share, reflecting an election to defer receipt of these shares under the Omnicom Group Inc. 2021 Incentive Award Plan.

Following this deferred stock transaction, Coleman beneficially owns 48,289.03 Omnicom shares directly. This total includes dividends on deferred shares that were reinvested in company stock and credited on October 10, 2025. The filing indicates the transaction was reported by a single reporting person in the capacity of a director.

Insider Trade Summary

Grant/Award: 634.68 shares

Grant/Award 1 txn

Insider COLEMAN LEONARD S JR

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.15 per share	634.68	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.15 per share — 48,289.03 shares (Direct)

Footnotes (2)

1. F1. The reporting person elected to defer receipt of these shares under the terms of the Omnicom Group Inc. 2021 Incentive Award Plan.
2. F2. Includes dividends on deferred shares that are reinvested in company stock, credited on October 10, 2025.

FAQ

What insider transaction did Omnicom Group Inc. (OMC) disclose in this filing?

The filing reports that director Leonard S. Coleman acquired 634.68 shares of Omnicom Group Inc. common stock on 01/01/2026 at a price of $0 per share through a deferred stock election under the company’s 2021 Incentive Award Plan.

How many Omnicom (OMC) shares does the reporting person own after this transaction?

After the reported transaction, the director beneficially owns 48,289.03 shares of Omnicom Group Inc. common stock, held in direct ownership form.

Why was the Omnicom (OMC) stock acquisition priced at $0 per share?

The $0 per share price reflects that the director elected to defer receipt of these shares under the Omnicom Group Inc. 2021 Incentive Award Plan, rather than purchasing them in the open market.

Does this Omnicom (OMC) Form 4 involve derivative securities like options or warrants?

No. Table II for derivative securities is present but contains no entries, and the reported activity relates only to non-derivative common stock acquired through a deferral election.

How are dividends on the deferred Omnicom (OMC) shares treated for this director?

The total holding of 48,289.03 shares includes dividends on deferred shares that were reinvested in company stock and credited on October 10, 2025.

What is the reporting person’s relationship to Omnicom Group Inc. (OMC)?

The reporting person is identified as a Director of Omnicom Group Inc., with the form indicating it is filed by one reporting person.

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Accepted by SEC EDGAR 01/05/2026 - 07:55 PM Learn about SEC filing dates

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^*

COLEMAN LEONARD S JR

(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)
01/01/2026

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	01/01/2026		A		634.68(1)	A	$0	48,289.03(2)	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. The reporting person elected to defer receipt of these shares under the terms of the Omnicom Group Inc. 2021 Incentive Award Plan.

2. Includes dividends on deferred shares that are reinvested in company stock, credited on October 10, 2025.

	/s/ Eric J. Cleary, Attorney in Fact for Leonard S. Coleman	01/05/2026
	** 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.