By Alexander Svanidze, Ava Singer, Ryan Leo, Julianna Zelnhefer (Boston University); Alvaro Aguilar De Nalda (ESADE); Rasmus Sjögren, Alexander Henje, Haris Jasarevic, Nikolas Kakona (SSE) Photo: Quick PS (Unsplash) Overview of the deal Acquirer:  Omnicom Group Target:  Interpublic Group Implied Equity Value : $13.25 billion USD Total Transaction Size:  $13.25 billion USD Closing Date:  November 26, 2025  Target Advisor:  Morgan Stanley (Financial), Willkie Farr & Gallagher L