Global ad giant Publicis is spending big to position itself as the top agency for brands riding the digital wave, after it announced a deal that sees it acquire Sapient for $3.7 billion. Publicis is paying $25.00 per share in an all-cash transaction at a total valuation that is a 44% premium to Nasdaq-listed Sapient’s most recent share price, as of October 31. The deal, which is described as a merger, will see Sapient become a wholly-owned subsidiary of Publicis Groupe.