Shearman & Sterling (Washington)

Ryan Leske

Shearman & Sterling (Washington)

Ryan Leske is an associate in the Antitrust practice, based in Washington, D.C. His practice focuses on defending mergers and acquisitions before the Federal Trade Commission, Department of Justice, state antitrust authorities, and foreign competition authorities. He also counsels clients on a range of antitrust matters including private and class action litigation as well as government investigations. Ryan has represented clients in a variety of industries, including healthcare, aerospace and defense, aggregates, agribusiness, alcohol beverages, oil and gas, and metals. Prior to joining the firm, Ryan worked as an associate for another international law firm on antitrust matters. He also interned with the U.S. Securities and Exchange Commission’s Division of Enforcement and the New Orleans Saints.

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1835 Bulletin

Jessica K. Delbaum, Ryan Leske Merger remedies in the US : An overview of the leading cases


This Special Issue presents a collection of important U.S. federal antitrust merger remedies since 2000. For anyone trying to understand the U.S. approach to merger remedies, the guidance documents issued by the U.S. federal antitrust enforcement agencies, the Antitrust Division of the United States Department of Justice (“DOJ”) and the Federal Trade Commission (“FTC”) (each, an “Agency,” or collectively, the “Agencies”), are the right starting point. The Agencies, however, have recently called their own prior policies into question. New developments suggest that the Agencies may be less likely to accept remedies or will press for more robust protections. Therefore, it is important to actively monitor new developments in this dynamic environment.

David A. Higbee, Jessica K. Delbaum, Ben Gris, Jonathan Cheng, Ryan Leske, Noni Nelson, Alicia E. Bello The US FTC announces annual changes to the thresholds for the Hart-Scott-Rodino Antitrust Improvements Act of 1976


On January 21, 2022, the U.S. Federal Trade Commission (FTC) announced the annual changes to the thresholds for the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”). The official publication is expected to be released in the Federal Register on January 24, 2022. (...)


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