[Form 4] OMNICOM GROUP INC. Insider Trading Activity

Rhea-AI Filing Summary

OMNICOM GROUP INC. director Linda Johnson Rice received a stock award of 681 shares of common stock at no cost. This grant, reported as a compensation-related acquisition, increased her direct holdings to 12,287.76 shares. The position includes dividends on deferred shares that were reinvested in company stock and credited on January 9, 2026.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider RICE LINDA JOHNSON

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 — 12,287.76 shares (Direct)

Footnotes (1)

1. [object Object]

Key Figures

Stock award size: 681 shares Award price per share: $0.00 per share Total shares after transaction: 12,287.76 shares +1 more

4 metrics

Stock award size 681 shares Common Stock grant to director Linda Johnson Rice

Award price per share $0.00 per share Compensation-related grant, not open-market purchase

Total shares after transaction 12,287.76 shares Direct holdings following the April 1, 2026 award

Dividend credit date January 9, 2026 Dividends on deferred shares reinvested in company stock

Key Terms

Grant, award, or other acquisition, deferred shares, dividends on deferred shares

3 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

deferred shares financial

"Includes dividends on deferred shares that are reinvested in company stock"

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.

dividends on deferred shares financial

"Includes dividends on deferred shares that are reinvested in company stock, credited on January 9, 2026"

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^*

RICE LINDA JOHNSON

(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	12,287.76(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. Includes dividends on deferred shares that are reinvested in company stock, credited on January 9, 2026.

	/s/ Eric J. Cleary, Attorney in Fact for Linda Johnson Rice	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)

FAQ

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

Omnicom Group reported that director Linda Johnson Rice received a stock award of 681 shares of common stock. The shares were granted at no cost as a compensation-related acquisition, rather than purchased on the open market, and were added to her direct holdings.

How many Omnicom Group (OMC) shares does Linda Johnson Rice hold after this grant?

After the reported transaction, Linda Johnson Rice directly holds 12,287.76 shares of Omnicom common stock. This total reflects her position following the 681-share stock award and includes shares associated with reinvested dividends on deferred shares credited on January 9, 2026.

Was the Omnicom Group (OMC) Form 4 transaction an open-market purchase or a stock award?

The transaction was a stock award, not an open-market purchase. It is coded as a grant or award acquisition, with 681 shares of common stock received at a price of $0.00 per share, indicating compensation rather than a voluntary market buy.

What does the footnote about dividends on deferred shares mean for Omnicom Group (OMC)?

The footnote explains that the reported holdings include dividends on deferred shares that were reinvested in Omnicom stock. These reinvested dividends were credited on January 9, 2026, increasing Linda Johnson Rice’s overall share balance as part of her deferred compensation arrangements.

What role does Linda Johnson Rice hold at Omnicom Group (OMC) in this filing?

Linda Johnson Rice is identified as a director of Omnicom Group in the filing. The reported 681-share stock award reflects part of her director compensation, adding to her direct ownership stake in the company’s common stock as of the reported transaction date.