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Global Leader

Competition 2019

Professional Biography

WWL Ranking: Recommended

WWL says

William Stallings is an “energetic and smart” lawyer, according to respondents who effuse he is “persuasive in front of agencies in M&A-related matters”.

Biography

William H Stallings is an antitrust & competition partner in Mayer Brown's Washington DC office. Bill advises clients on competition and consumer protection issues, including merger reviews, government investigations, cartel matters and litigation. He regularly appears before the US DOJ and FTC.

Before joining Mayer Brown in 2015, Bill spent 17 years at the US DOJ's antitrust division, where he held several key roles, including chief of the transportation, energy and agriculture section. Bill had responsibility for second request merger reviews, civil conduct investigations, and litigating cases in industries such as airlines, oilfield services, meatpacking, shipping, agricultural products, energy generation and distribution, and financial services. He helped shape division policies, achieved precedent-setting results, and regularly engaged with counterparts from competition agencies around the world. For his outstanding service in antitrust enforcement, the DOJ awarded Bill the prestigious Neil E Roberts Award (2015). In 2016, the National Law Journal recognised Bill as an “antitrust trailblazer”.

Since joining Mayer Brown, Bill focuses on M&A and is recognised for providing straightforward antitrust advice and creative solutions. His high-profile matters include serving as antitrust counsel to an airline in a multibillion-dollar merger that closed successfully following a DOJ second request investigation and private litigation.  He also has favourably resolved a significant cartel matter and convinced the FTC to close – without taking action – a long-running consumer protection investigation.

Bill serves as a non-governmental adviser to the International Competition Network, an organisation of more than 100 competition agencies; he is on the governing committee of the ABA's Air & Space Forum; and he is a co-leader of Mayer Brown's aviation group.

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