Holdcos

Dentsu might sell its overseas business; a Prebid update worries the buy side; and Washington State imposes a new ad tax.

Jason Colon, until recently Publicis’ EVP and managing director of retail media, has taken a new role as EVP of Commerce Media at Horizon’s retail media agency Night Market.

Retail media and tech platforms now represent a return to agency scale dynamics. The proposed Omnicom and IPG merger is the latest example.