The Twitter logo is seen on the floor before the company The Twitter logo is seen on the floor before the company's IPO at the New York Stock Exchange in New York, November 7, 2013. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS) - RTX153YP  

Twitter COO Steps Down

Twitter Chief Operations Officer Ali Rowghani is stepping down from his position, according to a tweet posted Thursday morning.

Business Insider speculates the shakeup is because of Twitter’s less than stellar growth since their initial public offering. Rowghani was also in charge of product innovation and growth, two areas where Twitter has been lacking.

He may have irked some of the other executives by selling 300,000 shares for $9.9 million when others committed to keeping their shares. Rowghani said he did so to give money to a group doing research into the disease that killed his father.

Rowghani was also called “co-CEO” by an anonymous employee in a Wall Street Journal profile, something other executives weren’t happy about.

He will continue to serve in an advisory position with his former responsibilities being assumed by other members of management.