https://www.recode.net/2017/11/27/16706032/tumblr-david-karp-leaves-ceo-yahoo-oath

Tumblr CEO David Karp, who founded the blogging service back in 2007, is leaving the company.

Karp posted the announcement on his personal blog Monday after sharing it internally with Tumblr’s team. Jeff D'Onofrio, Tumblr’s president and COO, will take over while the company seeks a permanent replacement, according to The Verge.