Stephan Schlegelmilch is a litigation counsel based in the firm’s Washington, D.C. office and a member of the firm’s White Collar & Regulatory Defense Group. His practice focuses on securities enforcement and government investigations, internal investigations, and complex commercial litigation.

Mr. Schlegelmilch brings to the firm extensive experience in investigations and litigation involving securities laws violations, including those related to digital assets and cryptocurrencies. Prior to joining Debevoise, Mr. Schlegelmilch was at the U.S. Securities and Exchange Commission’s (SEC) Division of Enforcement as a Supervisory Trial Counsel in the Division’s Home Office Trial Unit, where he managed a team of trial attorneys while overseeing numerous matters related to market structure, insider trading, market manipulation, and antifraud violations involving issuers, broker dealers, and investment advisers. In his role, he first-chaired trials and administrative proceedings for the SEC, and he regularly handled all aspects of litigation brought by the Commission, including civil discovery, experts, evidentiary hearings, and dispositive motions. He also led and advised many of the SEC’s recent enforcement actions involving cryptocurrencies and other digital assets. Mr. Schlegelmilch received the Arthur F. Mathews Award and the Chair’s Award for Excellence for his accomplishments in litigation for the SEC.

Prior to joining the SEC, Mr. Schlegelmilch was a partner at a major law firm where he defended clients in diverse white collar and securities litigation matters. Following law school, he also served as a law clerk to Judge John M. Manos in the U.S. District Court for the Northern District of Ohio.

Mr. Schlegelmilch is the author of the chapter “Litigating with the SEC” in Practicing Law Institute’s SEC Compliance and Enforcement Answer Book (2023). He is a co-author of “The Most-Read Securities Law360 Guest Articles Of 2023,” Law360  (December, 2023); “2nd Circ. Holding Could Disrupt SEC Disgorgement Methods,” Law360 (November, 2023); “The SEC's first NFT enforcement action or just another ICO case?,” Westlaw (September, 2023) and “D.C. Circ. Ruling Could Mean FINRA Hearings Are On Thin Ice,” Law360 (July, 2023).

Mr. Schlegelmilch received his J.D. from Case Western Reserve University School of Law in 2000, and his B.A. from Case Western Reserve University in 1997.


  • Case Western Reserve University, 1997, B.A.
  • Case Western Reserve University School of Law, 2000, J.D.

Bar Admissions

  • Ohio
  • District of Columbia