SCHEDULE: JRJ Group and Affiliates Maintain Significant 9.99% Stake in Marex Group plc

JRJ Investor 1 LP, Amphitryon Limited (in liquidation), JRJ Group Limited, Sir Jeremy Isaacs, and Mr. Roger Nagioff collectively report a continued beneficial ownership of 9.99% in Marex Group plc, totaling 7,160,826 common shares.

Summary

• JRJ Investor 1 LP, Amphitryon Limited (in liquidation), JRJ Group Limited, Sir Jeremy Isaacs, and Mr. Roger Nagioff are reporting persons for Marex Group plc common stock.
• Amphitryon Limited (in liquidation) is the record holder of 7,160,826 shares.
• JRJ Investor 1 LP is the indirect sole shareholder of Amphitryon Limited.
• JRJ Investor 1 LP is indirectly controlled by JRJ Group Limited, which is controlled by Sir Jeremy Isaacs and Mr. Roger Nagioff.
• The aggregate amount beneficially owned by each reporting person is 7,160,826 shares.
• This represents 9.99% of the class, based on 71,699,922 shares outstanding as of June 30, 2025.
• The calculation excludes 1,199,156 ordinary shares held by the company's employee benefit trust.

Sentiment

Score: 5

Explanation: The filing is a routine disclosure of beneficial ownership, providing factual information without indicating positive or negative operational or financial performance.

Positives

• A significant beneficial ownership stake of 9.99% is maintained by a group of investors, indicating continued interest in Marex Group plc.

Negatives

• Amphitryon Limited, the record holder of the shares, is noted as being 'in liquidation', which is a factual status update.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders are informed about the significant ownership stake held by JRJ Investor 1 LP and its affiliates, which can influence perceptions of stability and control.

Key Dates

Keywords

Marex Group plc, JRJ Investor 1 LP, Amphitryon Limited, JRJ Group Limited, Sir Jeremy Isaacs, Roger Nagioff, Beneficial Ownership, Schedule 13G, Common Stock, Financial Services