SCHEDULE: LMR Partners Discloses 7.9% Stake in CompoSecure

LMR Partners and its affiliates have reported a 7.9% beneficial ownership stake in CompoSecure, Inc., totaling 8,726,591 Class A Common Stock shares.

Summary

• LMR Partners LLP, LMR PARTNERS Ltd, LMR Partners LLC, LMR Partners AG, LMR Partners (DIFC) Ltd, LMR Partners (Ireland) Limited (collectively, the "LMR Investment Managers"), along with individuals Ben Levine and Stefan Renold, collectively reported beneficial ownership of CompoSecure, Inc. Class A Common Stock.
• As of June 30, 2025, the reporting persons beneficially owned an aggregate of 8,726,591 shares of Class A Common Stock.
• This ownership represents 7.9% of CompoSecure's Class A Common Stock outstanding.
• The percentage is calculated based on 102,357,732 shares of Class A Common Stock outstanding as of June 30, 2025, as reported in CompoSecure's Form 10-Q filed on August 7, 2025, plus shares acquirable within 60 days.
• The shares are held directly by LMR Multi-Strategy Master Fund Limited (4,313,014 shares via warrants) and LMR CCSA Master Fund Ltd (4,413,577 shares via warrants).
• The reporting persons have shared voting and shared dispositive power over all 8,726,591 shares.
• The securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer.

Sentiment

Score: 6

Explanation: The filing indicates a significant, passive investment by a reputable investment firm, which can be seen as a positive signal of confidence in the issuer. However, it provides no new operational or financial data to assess the company's performance, thus a neutral-to-slightly positive score.

Positives

• A significant stake by an investment manager like LMR Partners can be viewed as a vote of confidence in CompoSecure's long-term prospects.
• The passive nature of the investment (not for control) suggests a belief in the current management and strategy.

Future Outlook

NA

Industry Context

This filing indicates a significant investment by a multi-strategy investment firm in a company like CompoSecure, which operates in the secure payment card and authentication solutions industry. Such investments reflect investor interest in the sector's growth potential, particularly in areas like metal payment cards and digital security.

Stakeholder Impact

• Shareholders: The disclosure of a significant passive stake by LMR Partners may instill confidence among existing shareholders and potentially attract new investors, signaling institutional interest in CompoSecure.
• Management: The passive nature of the investment suggests LMR Partners is not seeking to influence control, which could be viewed positively by current management as it implies support for their existing strategy.

Key Dates

Recommendation

This Schedule 13G filing primarily discloses a passive ownership stake by LMR Partners. While a significant institutional investment can be a positive signal, the filing itself does not provide sufficient financial or operational data to warrant a "buy" or "sell" recommendation. It indicates a vote of confidence from a large investor, suggesting a "hold" position for existing investors and a "wait-and-see" approach for potential new investors until more comprehensive financial results or strategic updates are available.

Keywords

CompoSecure, LMR Partners, Class A Common Stock, beneficial ownership, Schedule 13G, investment, financial services, SEC filing, equity