Ashley (Lee) McMahon
Counsel | She/Her/Hers
Overview
When businesses and individuals face high-stakes antitrust issues, Ashley (Lee) McMahon delivers with confidence and competence. Lee’s broad practice covering complex civil and criminal litigation, government investigations, mergers and acquisitions, and premerger filings uniquely situates her to advise clients adeptly on all areas of competition law.
Career & Education
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- Connecticut College, B.A., magna cum laude, 2009
- University of Virginia School of Law, J.D., 2016
- District of Columbia
- Virginia
- U.S. District Court for the District of Columbia
Professional Activities and Memberships
- American Bar Association
- Antitrust Section
- Washington Council of Lawyers
- American Bar Association
Ashley (Lee)'s Insights
Webinar | 01.29.25
Looking Backward to Project Forward: Antitrust Enforcement Under Trump 2.0
Our webinar will discuss what to expect from antitrust enforcement in the Trump administration, informed by the enforcement record of the past eight years. This session is designed to provide a comprehensive understanding of the enforcement landscape, key leadership changes, and enforcement activities.
Speaking Engagement | 01.29.25
Client Alert | 3 min read | 01.22.25
Recent HSR Enforcement Actions Offer a Harsh Reminder That “The Rules Are the Rules”
Client Alert | 3 min read | 01.15.25
Speedbump or Roadblock?: Complaint Challenges New Hart-Scott-Rodino Rules
Representative Matters
- Represented a Japanese automotive parts manufacturer in In re Automotive Parts Antitrust Litigation, the multi-district litigation stemming from the largest criminal antitrust investigation in U.S. history” into cartel allegations.
- Represented an aerospace and defense company in class action litigation stemming from a grand jury indictment alleging no-poach agreements.
- Represented a major regional health care provider in class action litigation alleging no-poach agreements.
- Represented client in a grand jury investigation alleging no-poach agreements.
- Represented a multinational telecommunications company in the premerger filing and Second Request process of a billion-dollar sale of an anime streaming business.
- Represented a private equity client in its acquisition of a billion-dollar aerospace & defense products and medical products manufacturer.
- Represented a health care IT solutions company in an FTC investigation and follow-on class action litigation alleging exclusive dealing arrangements related to e-prescriptions.
- Represented a mission critical communications enterprise as a third party in an FTC investigation in the law enforcement body-worn camera industry.
- Represented a pharmaceutical manufacturer in multi-district litigation alleging price-fixing of generic drugs.
Ashley (Lee)'s Insights
Webinar | 01.29.25
Looking Backward to Project Forward: Antitrust Enforcement Under Trump 2.0
Our webinar will discuss what to expect from antitrust enforcement in the Trump administration, informed by the enforcement record of the past eight years. This session is designed to provide a comprehensive understanding of the enforcement landscape, key leadership changes, and enforcement activities.
Speaking Engagement | 01.29.25
Client Alert | 3 min read | 01.22.25
Recent HSR Enforcement Actions Offer a Harsh Reminder That “The Rules Are the Rules”
Client Alert | 3 min read | 01.15.25
Speedbump or Roadblock?: Complaint Challenges New Hart-Scott-Rodino Rules
Insights
|
Cases and Precedents: Cartels: USA 2025
|11.01.24
Global Competition Review
Authored in 2023, 2024, 2025
Ashley (Lee)'s Insights
Webinar | 01.29.25
Looking Backward to Project Forward: Antitrust Enforcement Under Trump 2.0
Our webinar will discuss what to expect from antitrust enforcement in the Trump administration, informed by the enforcement record of the past eight years. This session is designed to provide a comprehensive understanding of the enforcement landscape, key leadership changes, and enforcement activities.
Speaking Engagement | 01.29.25
Client Alert | 3 min read | 01.22.25
Recent HSR Enforcement Actions Offer a Harsh Reminder That “The Rules Are the Rules”
Client Alert | 3 min read | 01.15.25
Speedbump or Roadblock?: Complaint Challenges New Hart-Scott-Rodino Rules