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John Nathanson is a partner in the firm’s litigation practice. His practice focuses on United States Department of Justice inquiries, Securities and Exchange Commission and other regulatory matters, internal investigations and civil securities litigation.
Prior to joining the firm in 2009, John served for five years as an Assistant United States Attorney in the Eastern District of New York, where he was assigned to the business and securities fraud unit for four years. He also served as Acting Deputy Chief of the general crimes unit. During his time at the US Attorney’s Office, John investigated and prosecuted numerous securities fraud matters, including cases involving collateralised debt obligations (Bear Stearns asset managers), options backdating, private investment in public equity (PIPE), insider trading and other complex accounting and securities frauds.
Before the US Attorney’s Office, from 2001 to 2004, John served as an Assistant District Attorney in the Frauds Bureau of the Manhattan District Attorney’s Office. While an ADA, he investigated and prosecuted securities and other business fraud cases, including the successful prosecution of brokerage D H Blair & Co, and several of its executives.
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