Twitter Ex-CEO Costolo Plans Fitness Startup, Joins VC Firm

  • Executive teams up with Oki to start `fun and social' platform
  • Also tweets he's becoming a partner at Index Ventures

Dick Costolo.

Photographer: David Paul Morris/Bloomberg
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Dick Costolo, who resigned as Twitter Inc.’s chief executive officer last year, is starting a new company -- one that’s focused on personal fitness.

Taking to the social-media service he helped build, Costolo tweeted a couple of screenshots of his announcement. He and Bryan Oki, who runs a health and wellness consulting firm, will work together to create a software platform aimed at helping motivate users to work out. Costolo also said he will join Index Ventures as a venture partner, to invest in new companies and work with startups already in the firm’s portfolio.