Marex Group plc USDC – Southern District of New York october 23, 2025 CLASS PERIOD: May 16, 2024 – August 5, 2025LEAD PLAINTIFF DEADLINE: december 8, 2025 Please complete the form below to contact Kaplan Fox regarding the Marex Group Investigation: Join a Case First Name * Last Name * Email Address * Phone Number * Ticker Symbol Or Company Name * Please Insert Your Estimation Of Losses In USD * Are you a current or former employee of the company mentioned having traded above? * Yes No Captcha Submit If you are human, leave this field blank. Principle Contacts Pamela MayerPMayer@kaplanfox.comLaurence D. KingLKing@kaplanfox.com Kaplan Fox Alerts Investors of Marex Group plc (MRX) to a Securities Class Action Deadline on December 8, 2025 Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Marex Group plc (“Marex” or the “Company”) (NASDAQ: MRX) on behalf of investors that purchased or otherwise acquired Marex securities between May 16, 2024 and August 5, 2025 (the “Class Period”). CLICK HERE TO JOIN THE CASE If you purchased Marex securities during the Class Period and have suffered losses, you may CLICK HERE to contact us. You may also contact Kaplan Fox by emailing pmayer@kaplanfox.com or by calling (646) 315-9003. DEADLINE REMINDER: If you are a member of the proposed Class, you may move the court no later than December 8, 2025 to serve as a lead plaintiff for the purported class. If you have losses, we encourage you to contact us to learn more about the lead plaintiff process. You need not seek to become a lead plaintiff in order to share in any possible recovery. On August 5, 2025, NINGI Research published a report entitled “Marex Group plc: A Financial House of Cards.” According to the complaint, the NINGI Research report alleges that Marex “has engaged in a multi-year accounting scheme involving a web of opaque off-balance sheet entities, fictitious intercompany transactions, and misleading to conceal significant losses, inflate profits, and mask its true risk exposure.” Following this news, the price of Marex shares fell $2.33 per share, over 6%, to close at $35.31 per share on August 5, 2025. The complaint alleges, among other things, that throughout the Class Period, Defendants made false and/or misleading statements and/or failed to disclose that (i) the Company sold over-the-counter financial instruments to itself; and (ii) Marex had inconsistencies in its financial statements between its subsidiaries and related parties, including as to intercompany receivables and loans. WHY CONTACT KAPLAN FOX Kaplan Fox is a leading national law firm focusing on complex litigation with offices in New York, Oakland, Los Angeles, Chicago and New Jersey. With over 50 years of experience in securities litigation, Kaplan Fox offers the professional experience and track record that clients demand. Through prosecuting cases on the federal and state levels, Kaplan Fox has successfully shaped the law through winning many important decisions on behalf of our clients. For more information about Kaplan Fox & Kilsheimer LLP, you may visit our website at www.kaplanfox.com. This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules. If you have any questions about this Notice, your rights, or your interests, please contact: CONTACT:Pamela A. MayerKAPLAN FOX & KILSHEIMER LLP800 Third Avenue, 38th FloorNew York, New York 10022(646) 315-9003pmayer@kaplanfox.com Laurence D. KingKAPLAN FOX & KILSHEIMER LLP1999 Harrison Street, Suite 1560Oakland, California 94612(415) 772-4704lking@kaplanfox.com The submission of this form does not create an attorney-client relationship, nor an obligation on the part of Kaplan Fox to retain you as a client. Any information you submit will be maintained as confidential. If Kaplan Fox, in its sole discretion, believes that you might be an appropriate client, Kaplan Fox will contact you to discuss the matter and whether to establish an attorney client relationship. By signing this form you are authorizing us to contact you regarding this case and/or future cases. Connect with Kaplan Fox. Receive a complimentary case review now. Contact Us Marex Group plc See the Case CarMax, Inc. See the Case Fluor Corporation See the Case KBR, Inc. See the Case RCI Hospitality Holdings, Inc. See the Case Barnes & Noble Education, Inc. See the Case Dow, Inc. See the Case Semler Scientific, Inc. See the Case LifeMD, Inc. See the Case C3.ai, Inc. See the Case Snap, Inc. See the Case KinderCare Learning Companies, Inc. See the Case