280 PARK AVENUE, NEW YORK, NY
Andrew Castellaneta Retires as Senior VP and Chief Accounting Officer
Earnings Release
Omnicom Group Inc. Annual Meeting Results; Board Elected and KPMG Ratified
Reports First Quarter 2026 Results
Annual Report to Security Holders
Omnicom Group Inc. Hosts Investor Day to Present Growth Strategy
Omnicom Group Inc. Closes $400M Senior Notes Offering
Investor Presentation
Q2
Q1
FY 2024
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Q0
FY 2023
Certificate
Registration of Securities
Prospectus Filed Pursuant to Rule 424(b)(2)
Registration Statement for Securities to be Offered to Employees
Prospectus filed pursuant to Rule 424(b)(3)
Definitive Proxy Statement
Additional Proxy Materials
PRE 14A
Initial Statement of Beneficial Ownership
Statement of Changes in Beneficial Ownership
Free Writing Prospectus
Correspondence
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