He was arrested Tuesday on allegations that he used the information to advise other investment professionals to buy shares in the companies developing the drug, then later to dump those investments and place financial bets against the companies when the tests returned disappointing results.Martoma's trades helped reap a hefty profit from 2006 through July 2008, while he worked for CR Intrinsic Investors LLC of Stamford, Conn., an affiliate of SAC Capital Advisors, a firm owned by Steven A. Cohen, one of the nation's wealthiest hedge fund managers.
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