SCHEDULE: Rainer Erdtmann Amends Biomea Fusion Stake to 3.9%
Beneficial Ownership Disclosure
Rainer M. Erdtmann updated his beneficial ownership in Biomea Fusion, Inc., now holding 3.9% of common stock after resigning from Point Sur Investors.
Summary
- Rainer M. Erdtmann beneficially owns 2,782,707 shares of Biomea Fusion, Inc. common stock.
- This ownership represents 3.9% of the company's outstanding common stock.
- The beneficial ownership includes 690,677 shares issuable from stock options, 572,427 shares held directly, 210,000 shares held by his children, 174,614 shares held by Trust 1, and 1,134,989 shares held by Trust 2.
- Effective December 19, 2025, Rainer M. Erdtmann resigned as a Managing Member of Point Sur Investors, LLC, and no longer beneficially owns shares held by Point Sur Investors Fund I, LP and Point Sur Investors, LLC.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this filing as neutral. It is a routine disclosure of beneficial ownership changes by an individual, primarily reflecting a structural shift in holdings rather than a performance-driven investment or divestment.
Future Outlook
This filing is a disclosure of past beneficial ownership changes and does not contain any forward-looking statements or guidance regarding Biomea Fusion, Inc.'s future performance or strategy.
Industry Context
StockSavvy.ai notes that changes in beneficial ownership by significant individuals, especially those with prior affiliations to investment funds, are routinely disclosed via Schedule 13G filings. While a 3.9% stake is notable, this amendment primarily reflects a structural change in how Rainer M. Erdtmann holds his shares, rather than a direct investment or divestment decision related to Biomea Fusion's operational performance.
Stakeholder Impact
- Shareholders: Provides transparency regarding the beneficial ownership structure of a significant individual investor, clarifying the composition of his stake in Biomea Fusion, Inc.
Key Dates
| Date | Description |
|---|---|
| 2025-10-31 | Date as of which 70,703,639 shares of Common Stock were outstanding, as disclosed in the Issuer's Quarterly Report on Form 10-Q. |
| 2025-12-19 | Effective date of Rainer M. Erdtmann's resignation as a Managing Member of Point Sur Investors, LLC. |
| 2025-12-31 | Date of event which requires the filing of this Schedule 13G statement. |
| 2026-02-06 | Date of signature for this Schedule 13G Amendment No. 4 filing. |
Keywords
Biomea Fusion, Rainer Erdtmann, beneficial ownership, Schedule 13G, common stock, institutional ownership, equity stake
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