OMNICOM GROUP INC. — Director's Dealing 2025

May 15, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC. (OMC)
CIK: 0000029989
Period of Report: 2025-05-12

Reporting Person: WREN JOHN (Director, Chairman and CEO)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-12	Employee Stock Option (right to buy)	$77.60	A	4000000	Acquired	2032-05-12	Common Stock (4000000)	Direct

Footnotes

F1: The employee stock options were granted in connection with Mr. Wren's entry into an amended and restated employment agreement (the "Employment Agreement"), pursuant to which, among other things, Mr. Wren's term as Chairman and Chief Executive Officer of Omnicom Group Inc. will continue until December 31, 2028 and Mr. Wren's annual base salary was reduced from $1 million to $1.00. Pursuant to the Employment Agreement, Mr. Wren will not be entitled to receive any additional incentive compensation during the term specified in the Employment Agreement.

F2: The employee stock options will vest proportionately over 42 months, with the first vesting date occurring on July 1, 2025.