Joan Loughnane

JOAN LOUGHNANE is a global co-leader of Sidley’s White-Collar Defense and Investigations practice. With 25 years of experience as a former federal prosecutor and defense attorney, Joan is a trusted advisor to companies, boards, and individuals facing high-stakes investigations and criminal and regulatory enforcement matters.

Joan represents clients across a broad array of industries, including financial services, fintech, life sciences, and technology companies. She handles sensitive investigations and complex enforcement actions by the United States Department of Justice (DOJ), the Securities and Exchange Commission (SEC), the New York Department of Financial Services, state attorneys general, and other federal and state regulators. Joan joined Sidley after serving in a series of leadership positions in the United States Attorney’s Office for the Southern District of New York, including Acting Deputy United States Attorney