Ryan Cohen's attempts to wrest control of eBay have been met with investor doubts but having amassed a 10% stake, Cohen is now a mover and shaker at the online market.

GameStop CEO Ryan Cohen is pressing ahead with his bid for eBay despite its rejection of the company's $56 billion offer in May.

Ryan Cohen's attempts to wrest control of eBay have been met with investor doubts but having amassed a 10% stake, Cohen is now a mover and shaker at the online market.