| 2026-07-28 | Press release | Omnicom Reports Second Quarter 2026 Results |
| 2026-07-28 | Earnings deck | Presentation |
| 2026-07-28 | Press release | Press Release |
| 2026-07-16 | Press release | Omnicom Declares Dividend |
| 2026-07-07 | Press release | Omnicom Schedules Second Quarter 2026 Earnings Release and Conference Call |
| 2026-06-23 | Press release | Omnicom Launches Acxiom Fan Graph to Give Brands a More Complete View of Sports Fandom |
| 2026-06-16 | Press release | Omnicom Named World's Most Effective Holding Group in 2025 Effie Index |
| 2026-05-13 | Press release | OMNICOM TO PRESENT AT THE J.P. MORGAN GLOBAL TECHNOLOGY, MEDIA AND COMMUNICATIONS CONFERENCE |
| 2026-05-05 | Press release | Omnicom Declares Dividend |
| 2026-05-04 | Press release | Omnicom Elevates Christine Gambino to CEO of Omni Platform |
| 2026-04-28 | Earnings deck | Presentation
of Q1 2026, PDF file, (opens in new window) |
| 2026-04-28 | Press release | Omnicom Reports First Quarter 2026 Results |
| 2026-04-28 | Press release | https://www.prnewswire.com/news-releases/omnicom-reports-first-quarter-2026-results-302756255.html |
| 2026-04-28 | Press release | Press Release
of Q1 2026, PDF file, (opens in new window) |
| 2026-04-02 | Press release | Omnicom Schedules First Quarter 2026 Earnings Release and Conference Call |
| 2026-03-26 | Proxy statement | 2026 Proxy Statement of 2025 Annual Report, PDF file, (opens in new window) |
| 2026-03-26 | Annual report | Read Chairman's Letter |
| 2026-03-24 | Press release | Omnicom Agencies Dominate Fast Company's Most Innovative Companies 2026 |
| 2026-02-25 | Press release | OMNICOM PRICES SENIOR NOTES OFFERINGS |
| 2026-02-19 | Press release | Omnicom Declares Dividend |
| 2026-02-19 | Press release | Omnicom Announces 2026 Investor Day |
| 2026-02-18 | Press release | Omnicom Announces $5 Billion Share Repurchase Program and Entry into $2.5 Billion of Accelerated Share Repurchase Arrang |
| 2026-02-18 | Press release | https://www.prnewswire.com/news-releases/omnicom-reports-fourth-quarter-and-full-year-2025-results-302691987.html |
| 2026-02-18 | Press release | Earnings Release Open Event Link, PDF file, February 18, 2026, (opens in new window) |
| 2026-02-18 | Press release | Omnicom Reports Fourth Quarter and Full Year 2025 Results |
| 2026-02-17 | Press release | Omnicom Named a Leader in Commerce Services by Independent Research Firm |
| 2026-02-11 | Press release | Omnicom Schedules Fourth Quarter and Full Year 2025 Earnings Release and Conference Call |
| 2026-01-29 | Press release | Omnicom Appoints Jantzen Bridges as Global President of its Enterprise Transformation Consultancy |
| 2026-01-07 | Press release | Omnicom Unveils the New Omni: an AI-Driven Marketing Intelligence Platform Delivering Measurable Sales Growth for Brands |
| 2025-10-21 | Press release | https://www.prnewswire.com/news-releases/omnicom-reports-third-quarter-2025-results-302590566.html |
| 2025-10-21 | Press release | Press Release of Q3 2025 Report, (opens in new window) |
| 2025-07-15 | Presentation | Presentation of Q2 2025 Report, (opens in new window) |
| 2025-07-15 | Press release | https://www.prnewswire.com/news-releases/omnicom-reports-second-quarter-2025-results-302505978.html |
| 2025-07-15 | Press release | Press Release of Q2 2025 Report, (opens in new window) |
| 2025-04-15 | Earnings deck | Q1 (opens in new window) |
| 2025-04-15 | Press release | Press Release |
| 2025-03-27 | Proxy statement | 2025 Proxy Statement of 2024 Annual Report, PDF file, (opens in new window) |
| 2024-02-06 | Press release | Q4 |
| Press release | Omnicom Appoints Casey Santos to Board of Directors |
| Press release | Omnicom Declares Dividend |