Ex-Fund Manager Pleads Not Guilty to Insider Trading The Associated Press January 4, 2013 | 0 Comments share share on linkedin Facebook share on twitter share on google+ Share With Email Send Thank you for sharing! Your article was successfully shared with the contacts you provided. print reprints The arrest of Mathew Martoma has increased speculation that the government is taking a hard look at the practices of billionaire hedge fund owner Steven A. Cohen. VIEW COMMENTS ( 0 ) ADD COMMENT What's being said Sign In Terms & Conditions Comments are not moderated. To report offensive comments, click here. Preparing comment abuse report for Article #1202583243538 Send Thank you! This article's comments will be reviewed.