Mathew Martoma (born May 18, 1974, as Ajai Mathew Mariamdani Thomas) is an American former hedge fund trader. As a portfolio manager at S.A.C. Capital Advisors, he was accused of generating possibly the largest single insider trading transaction profit in history at a value of $276 million.
A jury convicted him, and in November 2014 he began serving a nine-year prison sentence. He is currently incarcerated at FCI Miami as inmate 01138-104, and scheduled for early release on 19 July 2021.