Jeff D'OnofrioWho is CEO of Tumblr?
David Karp (born July 6, 1986) is an American web developer and entrepreneur. He is the founder and former CEO of the short-form blogging platform Tumblr. Karp remained CEO of the company. Karp announced in November 2017 that he would be leaving Tumblr by the end of the year.Who is CEO of Tumblr?