Jason Yonan is Chief of the Securities and Commodities Fraud Section at the United States Attorney’s Office for the Northern District of Illinois. In that position, Mr. Yonan supervises six Assistant United States Attorneys who focus on securities, commodities, and other investment frauds. Before becoming Section Chief, Mr. Yonan served as a Deputy Chief in the United States Attorney’s Financial Crimes and Special Prosecutions Section. Prior to becoming an Assistant United States Attorney, Mr. Yonan worked at the U.S. Securities and Exchange Commission in Chicago as a staff attorney and senior attorney in the Division of Enforcement. Before his time at the SEC, Mr. Yonan clerked for U.S. District Court Judge Joan H. Lefkow. Mr. Yonan received his J.D. from the University of Illinois College of Law.