Mark Sylvester

Mark Sylvester is Co-Chief of the SEC's Crypto Assets & Cyber Unit.

Mr. Sylvester was previously an Assistant Director in the Division of Enforcement’s Crypto Assets & Cyber Unit in the New York Regional Office of the U.S. Securities and Exchange Commission. In this role, Mark supervises a variety of investigations into potential crypto-related violations of the securities laws. Prior to becoming an Assistant Director, he was a senior trial counsel in the Division of Enforcement and was detailed as counsel to the Co-Directors of Enforcement. Prior to joining the Commission, Mark was a litigation associate at Arnold & Porter LLP in New York and a law clerk to the Honorable Juan R. Sánchez of the U.S. District Court for the Eastern District of Pennsylvania.