Mary K. Treanor is an associate in the Litigation Department. She focuses her practice on white collar matters, complex commercial litigation, and agency investigations and enforcement actions. Mary represents corporations and individuals in SEC, CFTC, FERC, and FINRA investigations. She also conducts and provides advice relating to internal investigations ranging from potential Ponzi schemes to violations of company policies and procedures. Additionally, she advises and assists in training financial institutions on Bank Secrecy Act and Anti-Money Laundering compliance.
Mary also provides pre-indictment and post-indictment representation on securities fraud and other allegations. Additionally, she responds to subpoenas on behalf of companies and individuals.
- Second chairing a three-week federal jury trial concerning securities fraud, market manipulation, and obstruction of justice charges
- Representing multiple national energy companies facing FERC enforcement actions and district court litigation related to alleged market manipulation violations
- Representing a national bank in federal lawsuits alleging tort and Bank Secrecy Act violations
Pro Bono Experience
Member of Ballard Spahr's Hiring and Summer Associate Committees
Recognition & Accomplishments
The Best Lawyers in America, "Ones to Watch," Commercial Litigation (Philadelphia), 2022
Award Recipient for Best Oral Argument in Wiley Rutledge Moot Court Competition
Speaker, "A Look at Two Recent OCC Bank Secrecy Act/Anti-Money Laundering Consent Orders: Lessons Learned" Consumer Finance Monitor Podcast, April 2, 2020
Co-author, "Supreme Court Forecloses Reimbursement for Certain Internal Investigations Under Mandatory Victims Restitution Act," Law Journal Newsletters, November 2018
Washington University School of Law (J.D. 2014, cum laude)
Executive Notes and Projects Editor, Washington University Journal of Law and Policy
College of the Holy Cross (B.A. 2008)