Ryan's 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 aerospace and defense, aggregates, agribusiness, alcohol beverages, chemicals, healthcare, media, metals, oil and gas, pharmaceuticals, and transportation. He has been praised by clients in The Legal 500 for providing "excellent service," as well as "practical and thoughtful advice."

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.



Representative matters

Chevron Corporation in its proposed acquisition of Hess Corporation.

JetBlue Airways in its proposed acquisition of Spirit Airlines.

JetBlue Airways in its Northeast Alliance with American Airlines.

Chevron Corporation in its acquisition of Noble Energy, Inc.

Published Work

  • Co-Author, "Merger Remedies in the US: An overview of the leading cases", Concurrences (July 2022)
  • Co-Author, "How to Deal with New Vertical Merger Enforcement Risks",Law360 (February 2018)
  • Co-Author, "Antitrust Concerns in Defense Transactions Under Trump", Law360 (December 2016)

Leadership Positions And Professional Affiliations

  • American Bar Association, Section of Antitrust Law
  • Corporate Counseling Committee, Young Lawyer Representative 2020-2021, 2023-2024



Attorney-at-Law, District of Columbia

Attorney-at-Law, New York

Attorney-at-Law, New Jersey


United States District Court for the District of Columbia


Tulane University Law School J.D., magna cum laude

Order of the Coif
Managing Editor, Tulane Law Review
Senior Articles Editor, The Sports Lawyer

The Wharton School University of Pennsylvania B.S., cum laude

University of Pennsylvania B.A., cum laude

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.