INTRODUCTION Contributed by: Franz Hoffet, Homburger
the United Kingdom, the Merricks v Mastercard col - lective proceedings, seeking damages on behalf of approximately 46 million consumers for interchange fee overcharges, were settled in May 2025 for a pay - ment of GBP200 million by Mastercard. The importance of third-party litigation funding has been explicitly recognised by the UK’s Competition Appeals Tribunal (CAT) and has transformed the eco - nomics of private claims, enabling better-resourced claimants to pursue cases that would previously have settled at a discount. Understanding the disclosure obligations, settlement dynamics, and regulatory treatment of litigation funding has become an essen - tial component of antitrust practice across major juris - dictions.
7 A NTITRUST LI T IGATI O N 2026
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