SCHEDULE 13G/A 0001104659-24-118290 0002040367 XXXXXXXX LIVE 1 Common Stock, par value $0.001551 per share 06/30/2025 0001997464 Marex Group plc G5S37H101 155 Bishopsgate London X0 EC2M 3TQ Rule 13d-1(d) JRJ Investor 1 LP b Y9 0.00 7160826.00 0.00 7160826.00 7160826.00 N 9.99 PN Amphitryon Limited is the record holder of the shares reported herein. JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the ordinary shares held directly by Amphitryon Limited. Amphitryon Limited (in liquidation) b Y9 0.00 7160826.00 0.00 7160826.00 7160826.00 N 9.99 CO Amphitryon Limited is the record holder of the shares reported herein. JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the ordinary shares held directly by Amphitryon Limited. JRJ Group Limited b Y9 0.00 7160826.00 0.00 7160826.00 7160826.00 N 9.99 CO Amphitryon Limited is the record holder of the shares reported herein. JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the ordinary shares held directly by Amphitryon Limited. Sir Jeremy Isaacs b X0 0.00 7160826.00 0.00 7160826.00 7160826.00 N 9.99 IN Amphitryon Limited is the record holder of the shares reported herein. JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the ordinary shares held directly by Amphitryon Limited. Mr. Roger Nagioff b X0 0.00 7160826.00 0.00 7160826.00 7160826.00 N 9.99 IN Amphitryon Limited is the record holder of the shares reported herein. JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the ordinary shares held directly by Amphitryon Limited. Marex Group plc 155 Bishopsgate London, United Kingdom, EC2M 3TQ (i) JRJ Investor 1 LP ("JRJ Investor 1") 44 Esplanade, St. Helier, JE4 9WG, Jersey Citizenship: Limited partnership organized under the laws of Jersey (ii) Amphitryon Limited (in liquidation) ("Amphitryon Ltd.") 44 Esplanade, St. Helier, JE4 9WG, Jersey Citizenship: Company organized under the laws of Jersey (iii) JRJ Group Limited ("JRJ Group") 44 Esplanade, St. Helier, JE4 9WG, Jersey Citizenship: Company organized under the laws of Jersey (iv) Sir Jeremy Isaacs 44 Esplanade, St. Helier, JE4 9WG, Jersey Citizenship: British Citizen (v) Mr. Roger Nagioff 44 Esplanade, St. Helier, JE4 9WG, Jersey Citizenship: British Citizen Y As of July 24, 2025, Amphitryon Ltd. directly held 7,160,826 Shares. JRJ Investor 1 is the indirect sole shareholder of Amphitryon Ltd. JRJ Investor 1 is indirectly controlled by JRJ Group, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff. As such, they may be deemed to have or share beneficial ownership of the Shares held directly by Amphitryon Ltd. Each of the Reporting Persons may be deemed to be the beneficial owner of the percentage of Shares listed on such Reporting Person's cover page. Calculations of the percentage of Shares beneficially owned are based on 71,699,922 Shares outstanding as of June 30, 2025, which excludes 1,199,156 Ordinary Shares that were held by the Company's employee benefit trust, based on information provided by the Issuer to the Reporting Persons. 0 7,160,826 0 7,160,826 Y Y Y Y Y Y JRJ Investor 1 LP /s/ Nigel Crocker 07/24/2025 Amphitryon Limited (in liquidation) /s/ Jacques van Oorschot 07/24/2025 JRJ Group Limited /s/ Nigel Crocker 07/24/2025 Sir Jeremy Isaacs /s/ Jeremy Isaacs 07/24/2025 Mr. Roger Nagioff /s/ Roger Nagioff 07/24/2025 JRJ JERSEY LIMITED, AS GENERAL PARTNER OF JRJ INVESTOR 1 LP