Omnicom (NYSE: OMC) insider uses 1,849 shares to cover tax costs

Rhea-AI Filing Summary

OMNICOM GROUP INC. Senior VP, General Counsel & Secretary Louis F. Januzzi reported a routine share disposition related to tax or exercise obligations. On May 15, 2026, 1,849 shares of common stock were delivered at $70.83 per share under a transaction coded as a tax-withholding disposition. This was not reported as an open-market sale. After the transaction, he directly held about 33,146.453 shares of Omnicom common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Januzzi Louis F

Role Senior VP, Gen. Counsel & Sec.

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, par value $0.15 per share	1,849	$70.83	$131K

Holdings After Transaction: Common Stock, par value $0.15 per share — 33,146.453 shares (Direct, null)

Footnotes (1)

Key Figures

Shares used for tax withholding: 1,849 shares Transaction price per share: $70.83 per share Shares held after transaction: 33,146.453 shares +1 more

4 metrics

Shares used for tax withholding 1,849 shares Tax-withholding disposition on May 15, 2026

Transaction price per share $70.83 per share Price applied to tax-withholding shares

Shares held after transaction 33,146.453 shares Direct Omnicom common stock holdings post-transaction

Transaction code F Payment of exercise price or tax liability by delivering securities

Key Terms

tax-withholding disposition, Common Stock, par value $0.15 per share, Payment of exercise price or tax liability by delivering securities

3 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock, par value $0.15 per share financial

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

Payment of exercise price or tax liability by delivering securities financial

"transaction_code_description: "Payment of exercise price or tax liability by delivering securities""

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^*

Januzzi Louis F

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior VP, Gen. Counsel & Sec.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		F		1,849	D	$70.83	33,146.453	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:

	/s/ Eric J. Cleary, Attorney in Fact for Louis F. Januzzi	05/19/2026
	** 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 (OMC) report for Louis F. Januzzi?

Omnicom reported that Louis F. Januzzi had 1,849 common shares disposed of on May 15, 2026. The transaction was a tax-withholding disposition, used to pay exercise price or tax liabilities by delivering shares.

Was the Omnicom (OMC) insider transaction an open-market sale?

No, the transaction was coded F, indicating a tax-withholding disposition rather than an open-market sale. Shares were delivered to cover exercise price or tax obligations, not sold voluntarily in the market.

How many Omnicom (OMC) shares were involved in the tax-withholding event?

The filing shows 1,849 shares of Omnicom common stock were used in the tax-withholding disposition. The price per share recorded for this transaction was $70.83, according to the Form 4 data.

How many Omnicom (OMC) shares does Louis F. Januzzi hold after the transaction?

Following the tax-withholding disposition, Louis F. Januzzi directly holds 33,146.453 Omnicom common shares. This remaining position indicates the transaction affected only a small portion of his reported holdings.

What does transaction code F mean in the Omnicom (OMC) Form 4?

Transaction code F identifies a payment of exercise price or tax liability by delivering securities. In this case, 1,849 Omnicom shares were disposed of to satisfy such obligations, rather than being sold on the open market.