NEW YORK, October 16, 2026 – Omnicom (NYSE: OMC) will publish its third quarter 2026 results on Thursday, October 22, 2026 after the New York Stock Exchange close of trading. The company will also host a conference call to review such financial results on Thursday, October 22, 2026, starting at 4:30 p.m. Eastern Time. A live webcast of the call will be available at Omnicom’s investor relations website, investor.omc.com, along with the related earnings press release and slide presentation. A webcast replay will be made available after the call concludes.

About Omnicom

Omnicom (NYSE: OMC) is the world’s leading marketing and sales company. Powered by Omni, its proprietary data and identity platform, Omnicom’s Connected Capabilities unite the company’s agency brands, talent, and domain expertise across media, commerce, consulting, precision marketing, advertising, production, health, public relations, branding, and experiential to address clients’ most critical growth priorities. For more information, visit www.omc.com.