Are Omnicom and Publicis Laying Grounds for a Divorce?

Suddenly, merger obstacles are looming large

By raising tax domicile issues related to its megamerger with Publicis Groupe, Omnicom Group has drawn a line in the sand. And in doing so, the American company has only fanned speculation of mounting marriage troubles, with CEO John Wren stressing to investors that there is no “Plan B” should the combined company fail to establish U.K. tax residency and incorporation in the Netherlands.