Jack Dorsey Chairman after Dick Costolo replaced Williams as the CEO. On June 10, 2015, Costolo announced that he was resigning as CEO of Twitter, effective July 1, 2015. Dorsey would assume the post of Interim CEO upon Costolo's departure. He was named permanent CEO of Twitter on October 5, 2015. On the day after the controversy about Twitter's new algorithms for tweets, Dorsey responded to the trend, saying it was only a hoax. In May 2016, Dorsey announced that Twitter would not count photos and links in the 140-character limit to free up more space for text. This move was an
Evan Spiegel Evan Spiegel Evan Thomas Spiegel (born June 4, 1990) is the co-founder and CEO of the American multinational technology and social media company Snap Inc., which he created (as Snapchat Inc.) with Bobby Murphy and Reggie Brown while they were students at Stanford University. Spiegel was named the youngest billionaire in the world in 2015. Evan was born in Los Angeles, California, to John W Spiegel and Melissa Ann Thomas, both lawyers. Spiegel grew up in Pacific Palisades, California, where he was raised Episcopalian. He was educated at the Crossroads School for Arts and Sciences in Santa Monica, and attended