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Who's Who Legal
Who's Who Legal
Thought Leaders

Thought Leaders

Thought Leader

Thought Leaders - Competition 2021
WWL Ranking: Thought Leader

Global Leader

Competition 2020

Professional Biography

WWL Ranking: Recommended

WWL says

Charles (Rick) Rule is a formidable name in the US antitrust space. He brings experience as a former head of the DOJ's antitrust division to his practice.


A partner and co-chair of the antitrust group, Rick Rule focuses his practice on providing US and international antitrust advice to major corporations in connection with “bet-the-company” matters, particularly high-profile mergers, acquisitions and joint ventures. Formerly head of the Antitrust division of the US DOJ, Rick currently represents corporate clients in connection with civil and grand jury investigations by the DOJ, the US FTC and the European Commission; and in private and governmental litigation at both trial and appellate levels. Rick has played a lead role in the antitrust clearance of some of the highest-profile mergers over the past quarter-century.

Rick is listed as a top-band attorney for antitrust and competition by Chambers USA and Chambers Global; a “leading lawyer” for antitrust civil litigation by The Legal 500: US; and a “top 10 practitioner” for antitrust by Benchmark Litigation. In 2019, Rick was named “Dealmaker of the Year” by The American Lawyer and a Law 360 “Competition MVP” for his work on behalf of Cigna in its acquisition of Express Scripts. In 2018, Rick and his team won the European Deal of the Year at The Deal’s inaugural European Awards for their work on behalf of Monsanto in its acquisition by Bayer. In 2012, Rick’s work on behalf of Microsoft in its acquisition of Skype was named Merger Control Matter of the Year – Europe by GCR. Rick was also named a top legal innovator by the Financial Times in its annual “US Innovative Lawyers” report for his work on behalf of Microsoft. Rick is also ranked by Best Lawyers in America, The Legal Times, Lawdragon, The Washingtonian, Super Lawyers and WWL.

Rick provides US and international antitrust advice to clients facing challenges on transactional, regulatory and litigation fronts. He regularly represents major corporations and private equity firms in contested multibillion-dollar transactions and advises clients on comprehensive strategies when their interests are implicated in another merger in their industry. Rick also represents clients in civil and criminal litigation and has argued on behalf of his clients in courts throughout the country.

Rick represents major global corporations, financial institutions and individuals in connection with criminal grand jury investigations by the DOJ and other enforcement agencies involving allegations of price fixing, market allocation, bid rigging and other criminal conduct both nationally and internationally. He has unique experience counselling on antitrust and competition matters for multinational clients operating in China and guiding companies in complying with China’s foreign antitrust laws as they expand into Asia.

Rick is a frequent author and lecturer on antitrust and regulatory topics, and has served as a distinguished adjunct professor of law at American University’s Washington College of Law. He was the inaugural chair of the corporations, securities and antitrust practice group of the Federalist Society, and served as chair of the economics committee of the American Bar Association’s antitrust section. He is an emeritus member of the advisory board of BNA’s Antitrust & Trade Regulation Report, the Washington Legal Foundation and the Landmark Legal Foundation. He is a member of the board of directors of the Children’s Law Center, and previously served on the visiting committee of the University of Chicago Law School.

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