New York, NY – Law firm Pomerantz LLP has announced the filing of a class action lawsuit against Marex Group Plc (“Marex” or the “Company”), alleging securities fraud and other unlawful business practices by the company and certain officers or directors.

Investors who purchased or acquired Marex securities during the Class Period are advised to contact Danielle Peyton at [email protected] or by phone at 646-581-9980 (toll-free 888-4-POMLAW, Ext. 7980). Interested parties are encouraged to provide their mailing address, telephone number, and the number of shares purchased.

The class action stems from a report published by NINGI Research on August 5, 2025, titled “Marex Group plc: A Financial House of Cards.” The report alleged that Marex engaged in a multi-year accounting scheme using off-balance-sheet entities, fictitious intercompany transactions, and misleading disclosures to conceal losses, inflate profits, and mask risk exposure. Following the publication, Marex’s stock dropped $2.33 per share, or 6.19%, closing at $35.31 on the same day.

Investors have until December 8, 2025, to petition the Court to be appointed as Lead Plaintiff in the class action. A copy of the complaint is available at www.pomerantzlaw.com.

Pomerantz LLP, with offices in New York, Chicago, Los Angeles, London, Paris, and Tel Aviv, is recognized as a leading firm in corporate, securities, and antitrust class litigation. Founded by the late Abraham L. Pomerantz, the firm has a long-standing history of representing victims of securities fraud and corporate misconduct, securing numerous multimillion-dollar recoveries for class members.

For more information about joining the class action, visit Pomerantz LLP.