Discord co-founder Jason Citron will be replaced as CEO by Humam Sakhnini, former vice chairman of Activision Blizzard.

Discord Inc., the popular chat app, named a new chief executive officer, replacing co-founder and current CEO Jason Citron.

Discord is entering its second decade as a company and is seeking to go public. Along the way, it’s changed the way that online communities interact, turning groups that may have previously ...