Omnicom director Gracia C. Martore awarded 696 shares

The director elected to defer receipt under the 2026 Incentive Award Plan; reported direct holdings include reinvested dividends credited July 9, 2026.

Rhea-AI Filing Summary

Omnicom Group Inc. director Gracia C. Martore acquired 696 shares of common stock on October 1, 2026, as a grant/award reported at $0.00 per share. She elected to defer receipt under the 2026 Incentive Award Plan. Her reported direct holdings following the transaction were 29,355 shares, including dividends on deferred shares reinvested in company stock and credited July 9, 2026.

Insider Trade Summary

Grant/Award: 696.05 shares

Grant/Award 1 txn

Insider MARTORE GRACIA C

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.15 per share F1, F2	696.05	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.15 per share — 29,354.54 shares (Direct)

Footnotes (2)

1. F1. The reporting person elected to defer receipt of these shares under the terms of the Omnicom Group Inc. 2026 Incentive Award Plan.
2. F2. Includes dividends on deferred shares that are reinvested in company stock, credited on July 9, 2026.

Key Figures

Shares acquired: 696 shares Reported price per share: $0.00 per share Direct shares following transaction: 29,355 shares

3 metrics

Shares acquired 696 shares Grant/award on October 1, 2026

Reported price per share $0.00 per share Grant/award on October 1, 2026

Direct shares following transaction 29,355 shares Reported after the October 1, 2026 transaction; includes dividends on deferred shares credited July 9, 2026

Key Terms

defer receipt, deferred shares, reinvested in company stock

3 terms

defer receipt financial

"elected to defer receipt of these shares under the terms"

deferred shares financial

"dividends on deferred shares that are reinvested"

Deferred shares are a class of stock whose economic benefits or certain shareholder rights are delayed or paid later than ordinary shares—for example, dividends may be paid only after other shareholders receive theirs, or voting or redemption rights may be postponed. For investors, that timing difference matters because deferred shares typically offer lower near-term income and different risk, affecting expected returns, priority in payouts, and the share’s market value; think of them like a delayed paycheck compared with a regular salary.

reinvested in company stock financial

"reinvested in company stock, credited on July 9, 2026"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many OMC shares did director Gracia C. Martore acquire?

Gracia C. Martore acquired 696 shares of Omnicom common stock on October 1, 2026, as a grant/award under the 2026 Incentive Award Plan. She elected to defer receipt of the shares.

How many OMC shares did Gracia C. Martore hold after the award?

Gracia C. Martore's reported direct holdings following the transaction were 29,355 shares. The amount includes dividends on deferred shares reinvested in company stock and credited July 9, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/05/2026 - 04:31 PM Accepted by SEC EDGAR 10/05/2026 - 04:31 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^*

MARTORE GRACIA C

(Last) (First) (Middle)

C/O OMNICOM GROUP INC.

280 PARK AVENUE

(Street)

NEW YORK NEW YORK 10017

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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

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

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

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	10/01/2026		A		696.05(1)	A	$0	29,354.54(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. 2026 Incentive Award Plan.

2. Includes dividends on deferred shares that are reinvested in company stock, credited on July 9, 2026.

	/s/ Eric J. Cleary, Attorney in Fact for Gracia C. Martore	10/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)