David Einhorn attempts to sue apple after filing a complaint with a court in New York.
He wants Apple to share some of its $137bn cash reserves to its investors, his hedge fund Green Light Capital owns 0.12% of the company.
Mr Einhorn has already been in touch with Apples CFO but the suggestion was rejected. He says the company is playing safe by holding a large sum of cash. Apple is currently 35% below its record share price in September 2012.