[Form 4] OMNICOM GROUP INC. Insider Trading Activity

Rhea-AI Filing Summary

WYATT E LEE reported acquisition or exercise transactions in this Form 4 filing.

OMNICOM GROUP INC. director Wyatt E. Lee received a grant of 681 shares of common stock on April 1, 2026 at no purchase price, increasing his directly held stake to 23,797 shares. This total includes 212 shares that were previously omitted from a Form 4 filed on January 5, 2026.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WYATT E LEE

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.15 per share	681	$0.00	--

Holdings After Transaction: Common Stock, par value $0.15 per share — 23,797 shares (Direct)

Footnotes (1)

1. [object Object]

Key Figures

Shares granted: 681 shares Grant price: $0.00 per share Direct holdings after grant: 23,797 shares +1 more

4 metrics

Shares granted 681 shares Stock grant on April 1, 2026

Grant price $0.00 per share Award of common stock

Direct holdings after grant 23,797 shares Common stock held directly by Wyatt E. Lee

Previously omitted shares 212 shares Added from Form 4 originally filed January 5, 2026

Key Terms

grant/award acquisition, Common Stock, par value $0.15 per share, Form 4

3 terms

grant/award acquisition financial

"transaction_action": "grant/award acquisition""

Common Stock, par value $0.15 per share financial

"security_title": "Common Stock, par value $0.15 per share""

Form 4 regulatory

"omitted from the amount of securities acquired by the reporting person on the reporting person's Form 4 filed on January 5, 2026"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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^*

WYATT E LEE

(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)
04/01/2026

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	04/01/2026		A		681	A	$0	23,797(1)	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 amount reported herein includes 212 shares that were omitted from the amount of securities acquired by the reporting person on the reporting person's Form 4 filed on January 5, 2026.

	/s/ Eric J. Cleary, Attorney in Fact for E. Lee Wyatt Jr.	04/03/2026
	** 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)