Form 4: FMR LLC Reduces Metsera Stake via Gift

FMR LLC, a significant shareholder in Metsera, Inc., reported a disposition of 633,715 common shares as a gift.

Summary

• FMR LLC, identified as a 10% owner of Metsera, Inc. [MTSR], reported a transaction.
• On October 6, 2025, FMR LLC disposed of 633,715 shares of Metsera, Inc. Common Stock.
• The transaction price for these shares was $0.00, indicating a gift or transfer rather than a sale.
• Following this transaction, FMR LLC indirectly beneficially owns 473,832 shares of Metsera, Inc. Common Stock.
• Indirect ownership is held through F-Prime Capital Partners Life Sciences Fund VIII LP and F-Prime Inc.
• Abigail P. Johnson, a Director, Chairman, and CEO of FMR LLC, is part of the Johnson family, who are predominant owners of FMR LLC.

Sentiment

Score: 4

Explanation: The disposition of shares by a major holder, even as a gift, represents a reduction in their stake, which can be interpreted as a slightly negative signal, though not as strong as a direct sale.

Negatives

• A significant reduction in indirect beneficial ownership by a major shareholder (FMR LLC) could be perceived as a slight negative, even if it's a gift, as it reduces their overall stake.

Future Outlook

No forward-looking statements or guidance for Metsera, Inc. were provided in this filing.

Industry Context

This filing is an insider transaction report and does not provide information related to broader industry trends or competitors for Metsera, Inc.

Related Party Transactions

• The reported disposition of shares by FMR LLC, a 10% owner, is inherently a related party transaction.
• F-Prime Capital Partners Life Sciences Fund VIII LP and F-Prime Inc., through which FMR LLC holds indirect beneficial ownership, are related to FMR LLC. F-Prime Inc. is a wholly-owned subsidiary of FMR LLC, and F-Prime Capital Partners Life Sciences Advisors Fund VIII LP is managed by entities owned by FMR LLC shareholders and employees, including members of the Johnson family.

Stakeholder Impact

• Shareholders: The reduction in a major institutional investor's stake, even via gift, could lead to questions about long-term commitment or future strategy, potentially influencing investor sentiment.

Key Dates

Recommendation

This Form 4 filing details an insider transaction (a gift of shares) by a significant shareholder, FMR LLC. While it reduces their overall stake, it does not provide fundamental information about Metsera, Inc.'s operational performance, financial health, or strategic direction. Therefore, based solely on this filing, a 'hold' recommendation is appropriate as it's an informational update on insider activity rather than a catalyst for a change in investment thesis.

Keywords

Metsera Inc., MTSR, FMR LLC, Insider Transaction, Form 4, Share Disposition, Beneficial Ownership, F-Prime Capital