Casey O'Neill
Casey has more than fifteen years' experience handling complex disputes and investigations. As a skilled trial lawyer and former federal prosecutor, he has led hundreds of high-stakes government enforcement cases. His experience spans securities fraud and insider trading, digital currency and cryptocurrency fraud and manipulation, bank, wire and mail fraud, tax evasion, money laundering, sanctions compliance, foreign bribery under the FCPA and criminal and civil antitrust. In addition, Casey routinely litigates and advises on private disputes, including commercial, fiduciary and securities matters.
Before joining Fenwick, Casey served as a federal prosecutor with the United States Department of Justice, Criminal Division, Fraud Section, Securities & Financial Fraud Unit, based in Washington, D.C. There, he led and co-led investigations and prosecutions across the country, including insider trading and other securities fraud matters, and bank, tax, procurement and investment fraud cases.
- Member, Federal Bar Association’s Northern District of California Chapter
- Member, Federal Bar Council's Criminal Sentencing Committee
- Member, White Collar Crime Committee of the National Association of Criminal Defense Lawyers
- Advisory Board Member, White Collar Law360
- “U.S. Department of Justice’s Deconfliction Policy – Ripe for Review,” N.D. Cal. ABTL Report, 2021
- “Alleged ICO Fraud Highlights Compliance Considerations,” Law360, 2020
- “WrkRiot: Rite of Passage or Federal Offense?,” Law360, 2017
- “Fewer Corporate Prosecutions: A More Effective Approach?,” Law360, 2012
- “Confidentiality Waivers in Global Cartel Investigations,” ABA International Cartel Workshop, 2012