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Twitter Inc said Chief Operating Officer Ali Rowghani has resigned, in the biggest executive departure since the microblogging company's initial public offering last year. Rowghani will continue to be a Twitter employee and act as a strategic advisor to Chief Executive Officer Dick Costolo, the San Francisco-based company said in a filing on Thursday. Twitter said it will not fill the COO role. The move follows reports on technology blog Re/code on Wednesday about internal friction with Rowghani.
Twitter has been on a rocky ride since its November IPO and its stock is down more than 44 per cent this year.
