Skip to main content

Mintz Expands Securities Litigation Practice with Addition of Sean Prosser

Mintz today announced that Sean T. Prosser, a former SEC enforcement attorney, has joined the firm’s Litigation Department as a Member. He joins from Perkins Coie, where he led their White Collar, Government Investigations and Securities Litigation practices in Southern California.

Mr. Prosser defends clients facing shareholder litigation, SEC, FINRA and DOJ investigations, and enforcement actions, and other civil and criminal government and regulatory investigations and enforcement proceedings. His clients have included public and private companies, officers and directors, board committees, broker-dealers, banks, investment advisors, hedge funds, certified public accountants, individual stock traders and public officials.

“We are excited to have Sean join the firm,” said Bob Bodian, Managing Member of Mintz. "Adding someone with his skill, reputation and expertise further enhances our expanding capabilities in securities litigation and regulatory matters. Growing a premier practice with national scope has long been a key strategic objective for the firm, and Sean is the latest addition in a string of top talent to recently join the group, including Jason Halperin, David Siegel, Pete Michaels, David Ward and Dan Conley.”

He has particular practice depth defending clients in securities investigations and white collar actions initiated by regulatory authorities across the country and with a focus on California, including the U.S. Securities and Exchange Commission (SEC); U.S. Department of Justice (DOJ), including U.S. Department of the Treasury (USDT); the Financial Industry Regulatory Authority (FINRA); NYSE, NASDAQ, and other stock exchanges; California Department of Business Oversight (DBO); and the Public Company Accounting Oversight Board (PCAOB). 

Mr. Prosser also has a significant securities litigation practice. He regularly defends public companies and their executives facing shareholder lawsuits and derivative actions in state and federal courts across the country, including in the Delaware Court of Chancery.

During the course of his career, Mr. Prosser has represented such companies as: American Pacific Corporation; AML Communications; Ascend Communications; Cogent, Inc.; Comps.com; Digital Lightwave; dj Orthopedics; Dura Pharmaceuticals; EEX Corp.; Gemstar-TV Guide International; Goya Foods; Kintera; Kratos Defense & Security Solutions; Ligand Pharmaceuticals; Mentor Corp.; Netlist; NETSOL Technologies; Mallinckrodt Pharmaceuticals; PepperBall Technologies; Schlotzsky’s; SoftBank Corp.; Steakhouse Partners; Unison Healthcare; Wireless Facilities; and others.

He is recognized by Best Lawyers in America, Super Lawyers and The Legal 500. Mr. Prosser also sits on the Board of Editors of The Corporate Counselor. He has written and spoken extensively about SEC enforcement and securities matters, with a focus on insider trading, anti-money laundering, derivative claims and mergers, and fiduciary duty issues.

For more information about Mintz, please visit www.mintz.com.