| Filed | Form | Description | |
|---|---|---|---|
| 12/22/25 | DEF 14A | DEF 14A | → |
| 12/10/25 | PRE 14A | PRE 14A | → |
| 3/27/25 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | → |
| 3/27/25 | DEF 14A | DEF 14A | → |
| 3/28/24 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | → |
| 3/28/24 | DEF 14A | DEF 14A | → |
| ↓ | |||
| Filed | Form | Description | |
|---|---|---|---|
| 3/4/26 | 4 | 4 | → |
| 1/5/26 | 4 | 4 | → |
| 1/5/26 | 4 | 4 | → |
| 1/5/26 | 4 | 4 | → |
| 1/5/26 | 4 | 4 | → |
| 1/5/26 | 4 | 4 | → |
| ↓ | |||
Omnicom Group Inc. is an American global media, marketing, and corporate communications holding company, headquartered in New York City.