A former SAC Capital Advisors trader, set to go on trial next month on insider trading charges, wants to cite in court some 2012 testimony given by the hedge fund's founder Steven Cohen, claiming it rebuts the government's case.

Mathew Martoma, the ex-SAC portfolio manager is scheduled for trial on Jan. 6. He filed court papers late Friday seeking to use testimony given by Cohen to the U.S. Securities and Exchange Commission in May 2012.