Jeff Lawson, founder, CEO and chairman of Twilio, speaks at a press conference during the Mobile World Congress on March 1, 2017 in Barcelona, Spain Twilio co-founder Jeff Lawson on Monday said he is stepping down as CEO of the enterprise communications software company. The move comes as company grapples with two activist investors who have been pushing for significant changes at the company. Shares of Twilio are up about 7.3% on the news. "The time has come for me to pass the reins of this extraordinary c ...