Home Business Slimmed-down WPP to net $3.1 billion selling Kantar stake to Bain Business Slimmed-down WPP to net $3.1 billion selling Kantar stake to Bain By Genpie - July 12, 2019 156 0 Facebook Twitter Google+ Pinterest WhatsApp WPP is selling a 60% stake in Kantar to private equity firm Bain Capital, valuing the data analytics business at about $4 billion and giving the British owner of agencies including Ogilvy and Wunderman Thompson funds to cut debt and rebuild.