Omnicom (NYSE: OMC) CFO reports 4,476-share tax-withholding disposition

Rhea-AI Filing Summary

OMNICOM GROUP INC. Executive Vice President & CFO Philip J. Angelastro reported a tax-withholding disposition of 4,476 shares of common stock at $70.83 per share. After this transaction, he directly holds 518,500 shares and indirectly holds 1,770 shares through a 401(K) plan.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider ANGELASTRO PHILIP J

Role Executive Vice President & CFO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, par value $0.15 per share	4,476	$70.83	$317K
holding	Common Stock, par value $0.15 per share	--	--	--

Holdings After Transaction: Common Stock, par value $0.15 per share — 518,500 shares (Direct, null); Common Stock, par value $0.15 per share — 1,770 shares (Indirect, By 401(K) Plan)

Footnotes (1)

Key Figures

Tax-withholding shares: 4,476 shares Tax-withholding price: $70.83 per share Direct holdings after transaction: 518,500 shares +1 more

4 metrics

Tax-withholding shares 4,476 shares F-coded disposition of common stock

Tax-withholding price $70.83 per share Value applied to 4,476 shares

Direct holdings after transaction 518,500 shares Common stock held directly by CFO

Indirect 401(K) holdings 1,770 shares Common stock held via 401(K) plan

Key Terms

tax-withholding disposition, 401(K) Plan, Common Stock, par value $0.15 per share, Form 4

4 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" for 4,476 shares of common stock"

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.

401(K) Plan financial

"nature_of_ownership: "By 401(K) Plan" for 1,770 indirectly held shares"

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

Common Stock, par value $0.15 per share financial

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

Form 4 regulatory

"INSIDER FILING DATA (Form 4) for Omnicom Group Inc. insider transactions"

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^*

ANGELASTRO PHILIP J

(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)
	Executive Vice President & CFO

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		4,476	D	$70.83	518,500	D
Common Stock, par value $0.15 per share								1,770	I	By 401(K) Plan

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 Philip J. Angelastro	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 CFO Philip Angelastro?

Omnicom reported that CFO Philip J. Angelastro had 4,476 shares of common stock disposed of as a tax-withholding transaction at $70.83 per share. This was coded as an F transaction, indicating payment of tax liability or exercise price by delivering securities.

Did the Omnicom (OMC) CFO sell shares in the open market?

The filing shows an F-coded tax-withholding disposition, not an open-market sale. Shares were delivered to satisfy tax or exercise obligations, which is typically a mechanical event tied to compensation rather than a discretionary buy or sell decision in the market.

How many Omnicom (OMC) shares does the CFO hold after this Form 4?

After the reported tax-withholding disposition, CFO Philip J. Angelastro directly holds 518,500 shares of Omnicom common stock. He also has an additional 1,770 shares held indirectly through a 401(K) plan, reflecting both direct and retirement-related holdings in the company.

What price was used for the Omnicom (OMC) tax-withholding shares?

The tax-withholding disposition for Omnicom’s CFO used a price of $70.83 per share for 4,476 common shares. This price is the value applied to the shares delivered to cover tax or exercise obligations associated with the underlying equity compensation event.

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

Transaction code F indicates a tax-withholding disposition, where shares are delivered to pay an exercise price or tax liability. For Omnicom’s CFO, 4,476 shares were used this way, meaning the event reflects a compensation-related withholding rather than a standard market sale.

Are there any derivative securities reported for the Omnicom (OMC) CFO in this filing?

The derivative section in this Form 4 is empty, indicating no new derivative transactions were reported for the Omnicom CFO in this filing. The focus is solely on common stock, including the tax-withholding disposition and the remaining direct and 401(K) plan share holdings.