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Costolo will reportedly relinquish his seat on the board of directors once a new full-time CEO is found, or by year's end.
Twitter CEO Dick Costolo is out after months of disappointing investors. Twitter co-founder Jack Dorsey becomes interim CEO on July 1.
Twitter CEO Dick Costolo says he's not worried as questions resurface about his job after company's disappointing first-quarter earnings.
The microblogging service's chief is taking personal responsibility for the platform's slow response to user abuse and harassment, according to memos obtained by The Verge.
Despite Twitter’s stock plummet, CEO Dick Costolo’s job seems safe -- for now. But he needs to explain his strategy better.
The social network now allows users to chat privately without feeling constrained by a space limit. Blabbermouths, however, will get cut off at 10,000 characters.
The social network and the NFL sign a new two-year deal to provide "significantly more" game highlights. That could help the struggling service attract new users.
The microblogger's executives say they have no idea when they could see "significant" additions to its monthly active users metric.
Blog publishing platform joins growing list of sites banning threats, harassment and revenge porn.
The mobile-payments firm confidentially files SEC papers to offer stock to the public, say several reports, adding to talk about Square CEO Jack Dorsey and his simultaneous role as interim chief at Twitter.