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Bonny E. Sweeney

Bonny E. Sweeney, a leading antitrust litigator, is a Partner in the San Francisco office of Hausfeld.

Bonny has represented clients in some of the most significant antitrust cases in the United States in the last 20 years. She previously served as co-lead counsel on behalf of a class of merchants in In re Payment Card Interchange Fee and Merchant Discount Antitrust Litig. (E.D.N.Y.), a sprawling litigation against the world’s largest credit card companies. Bonny, together with Hausfeld, also served as co-lead counsel in In re Aftermarket Auto Lights Antitrust Litig. (C.D. Cal.), which settled for more than $50 million, and in which counsel obtained a landmark decision denying a leniency applicant’s bid for reduced civil damages under the Antitrust Criminal Penalty Enhancement and Reform Act (ACPERA), because the defendant had not provided satisfactory or timely cooperation under the statute. Bonny is one of the attorneys representing clients in high stakes litigation against some of the largest banks in the world in the In re Foreign Exchange Benchmark Rates Antitrust Litigation, 13-cv-07789 (S.D.N.Y.) which has secured over $2.3 billion in settlements. 

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