Michael Osnato

Michael J. Osnato, Jr., former Chief of the Complex Financial Instruments Unit of the Securities and Exchange Commission’s Enforcement Division, is a Litigation Partner and member of the Firm’s Government and Internal Investigations Practice. Drawing on his deep breadth of experience at the SEC, Mike is also the Head of Simpson Thacher’s Asset Management Regulatory and Enforcement group. He focuses on high-stakes regulatory and criminal matters, government investigations, sensitive whistleblower complaints and SEC examination and compliance counseling, including with respect to regulatory developments involving cryptocurrency and other digital assets. Representative matters include high-profile accounting fraud, asset valuation, FCPA, cryptocurrency, insider trading, public company disclosure and adviser conflicts of interest investigations before multiple government agencies.

Joined the Firm in 2017; U.S. Securities and Exchange Commission from 2008-2017; prior practice at prominent global law firms.

American Bar Association; New York City Bar Association White Collar Committee; SEC Enforcement Alumni; Law360 Compliance Editorial Advisory Board.

Co-author of Simpson Thacher Regulatory and Enforcement Alert.

J.D. with honors from Fordham Law School in 1997; B.A. with honors from Williams College in 1994.