SAC’s Villhauer Said to Be Head Trader Cited in Martoma Case

SAC’s Villhauer Said to Be Head Trader Cited in Martoma Case

Jin Lee/Bloomberg

Mathew Martoma, a former portfolio manager at a unit of SAC Capital Advisors LP, right, exits federal court with defense lawyer Charles Stillman, left, in New York, on Nov. 26, 2012.