Twitter chief executive Dick Costolo steps down
June 12 , 2015
Dick Costolo has stepped down as chief executive officer of Twitter, the social media firm announced.
Twitter co-founder Jack Dorsey will be the interim boss from July 1, till a replacement is found.
Costolo, who faced pressure from investors unsatisfied with the internet company’s user growth, said in a statement that he was "tremendously proud” of his team.
Dorsey indicated that the next chief executive of Twitter could be an insider or an outsider.