New York, NY (February 26, 2026) — Willkie Farr & Gallagher LLP today announced that leading antitrust practitioner Greg Olsen is joining as a partner in the Antitrust & Competition Department in the Firm’s London office. With more than 30 years of experience, Greg focuses his practice on major UK and EU competition matters, including mergers, joint ventures, market investigations, cartels and antitrust investigations across a wide range of sectors. He will be stepping down from his present role as an Ordinary Member of the UK Competition Appeal Tribunal once he has fulfilled his existing commitments. Prior to being a member of the Tribunal, Greg was Head of the London Antitrust Practice at two different international law firms. Willkie Chairman Matthew Feldman commented: “We are thrilled to welcome Greg to Willkie. His arrival is the latest demonstration of our continued investment in our global Antitrust & Competition practice. His varied experience, including representing some of the world’s leading corporate, private equity and financial institutions, will benefit our clients as they continue to navigate a changing regulatory landscape.” Greg has built a strong reputation over many years centered on the use of innovative solutions to secure timely first and second stage merger control clearances in complex global transactions.  He has also secured the successful resolution of multiple challenging and detailed behavioral investigations before the UK and EU competition authorities in the financial services, technology, media and consumer goods sectors. Greg commented: “Willkie is well known for its superb representation of clients on both transactional and contentious competition matters.  It is an exciting time to join this ambitious team and I relish the opportunity to help steer and fuel Willkie’s continued European expansion.  I look forward to collaborating with my talented new colleagues across the globe to provide clients with critical strategic guidance, support and solutions to all of their competition and antitrust needs.” Willkie’s Antitrust & Competition Practice Group serves an antitrust world without borders with a well-integrated team of competition lawyers in the United States and across Europe and with contacts throughout Asia, Latin America and Africa. Our antitrust team represents a global client base in national and international merger filings, U.S. and European investigations of all forms of anticompetitive activity, class action and private litigation, and business ventures, in multiple jurisdictions and across a host of sectors.

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