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Ex-Twitter CEO is shutting down his fitness startup

Photo: Justin Sullivan/Getty Images

Former Twitter CEO Dick Costolo is shutting down Chorus, a social fitness startup he debuted just over a year ago.

Why it matters: This was Costolo's next act after his high-profile role with Twitter, which he led between 2010 and 2015.

Chorus had raised $9 million in VC funding from firms like Index Ventures, where Costolo serves as a mentor.