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Arnold & Porter Strengthens Antitrust Practice With Addition of Bill Efron, Former Director of the FTC’s Northeast Region

Arnold & Porter announced today that Bill Efron, former Director of the Federal Trade Commission’s (FTC) Northeast Regional Office, has joined the firm’s Antitrust practice as a partner, resident in New York.

Debbie Feinstein, chair of Arnold & Porter’s Global Antitrust practice and former Director of the FTC’s Bureau of Competition, said: “Bill’s tenure at the FTC, along with his deep experience in both antitrust and consumer protection, makes him an asset to our leading Antitrust practice. His background in handling high-profile, cutting-edge, and highly complex matters will help our clients successfully navigate the current antitrust enforcement environment.”

Efron has more than two decades of experience, most recently serving in a senior FTC enforcement position for over 12 years. He focuses on antitrust and consumer protection, with an emphasis on merger reviews, government investigations, and litigation. His practice will include anticompetitive conduct matters, government enforcement actions, and private litigation. As Director of the FTC’s Northeast Region, Efron led and supervised prominent antitrust merger and conduct investigations and litigation for the FTC’s Bureau of Competition. He also oversaw complex cases involving alleged unfair and deceptive practices for the FTC’s Bureau of Consumer Protection. During his tenure at the FTC, Efron handled challenging antitrust matters across an array of industries, including healthcare, digital platforms, retail, radiopharmaceuticals, medical devices, industrial products, and marketing data. His experience includes serving as lead trial and appellate counsel in the FTC’s successful challenge to a proposed $2.4 billion hospital merger. He has particular strength in healthcare and possesses significant experience with respect to digital platforms. Earlier in his career, Efron practiced as an antitrust and commercial litigator at an Am Law 100 firm.

In joining the firm, Efron said: “I was drawn to Arnold & Porter’s premier Antitrust team, which is widely known for its strategic resolution of complex matters and its strong understanding of the antitrust agencies. I am excited to work alongside my colleagues, many of whom also have senior government experience.”

Efron earned his B.A. from the University of Pennsylvania, magna cum laude, and his J.D. from the University of Virginia School of Law.