Mary Hansen is a partner on the firm's White Collar Criminal Defense & Corporate Investigations team, where she focuses her practice on defending clients in regulatory investigations as well as white collar criminal proceedings in the securities industry. She also assists clients with internal investigations and compliance and prevention strategies.

Prior to joining the firm, Mary was an Assistant Director of the U.S. Securities & Exchange Commission's Division of Enforcement, where she was a member of the division's Market Abuse and Municipal Securities and Public Pensions units.

In that role, Mary supervised complex investigations involving a range of violations, including institutional insider trading, broker-dealer fraud, investment adviser fraud and municipal securities fraud. She established investigative plans, guidelines and priorities for staff attorneys, and developed litigation strategies for matters that went to trial.

Mary led several high-profile investigations, including one that resulted in charges of securities fraud against the State of New Jersey, the first time the SEC charged a state. She also led an investigation resulting in the SEC charging four brokers who worked on the cash desk at a New York-based broker-dealer with illegally overcharging customers $18.7 million by using hidden markups and markdowns and secretly keeping portions of profitable customer trades.

In general, Mary is a frequent speaker, addressing issues such as insider trading training and high frequency training investigations. Prior to law school, Mary worked at a large, multi-national broker-dealer. She earned her law degree, magna cum laude, from St. John's University School of Law and her bachelor's degree from University at Albany, State University of New York. Mary is also a Certified Fraud Examiner.