‘Largest’ Class Certified In Antitrust Dispute With Amazon Over Monopolization

( September 5, 2025, 2:30 PM EDT) -- SEATTLE — A Washington federal judge granted class certification in a Sherman Act antitrust suit against Amazon.com Inc. for its alleged monopolization of the market by stopping rivals from lowering prices related to the purchase on Amazon marketplace of physical goods from third-party sellers, finding that the requirements for class certification have been met, including numerosity, which according to plaintiffs’ economic expert, relates to “around 300 million” U.S. consumers....