Rainer M. Erdtmann - 31 Dec 2025 Form 5 Insider Report for Biomea Fusion, Inc. (BMEA)

Reporting relationship: Officer, Director
Issuer ticker: BMEA
Reported as of: 31 Dec 2025
Net transaction value: $0
SEC form: 5
Accepted by SEC: 06 Feb 2026, 16:15:03 UTC
Prior SEC filing: 15 Dec 2025
Next SEC filing: 03 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Rainer M. Erdtmann

Key filing fact

Rainer M. Erdtmann filed Form 5 for Biomea Fusion, Inc. (BMEA) on 06 Feb 2026.

Key facts

This page summarizes Rainer M. Erdtmann's Form 5 filing for Biomea Fusion, Inc. (BMEA).
6 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 06 Feb 2026, 16:15.

Change

Previous filing in this sequence was filed on 15 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 5 disclosures.

View source filing

Reporting Owners (1)

CIK 0001455767 Primary reporting owner

Erdtmann Rainer M

Relationship: Officer, Director
Address: C/O BIOMEA FUSION, INC., 1599 INDUSTRIAL ROAD, SAN CARLOS
Signature: /s/ Rainer M. Erdtmann
Signature date: 06 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: -50,600
Change %: -7%
Price: $0.000000
Shares after: 672,427
Date: 31 Dec 2025
Ownership: Direct

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: +50,600
Change %: +261%
Price: $0.000000
Shares after: 70,000
Date: 31 Dec 2025
Ownership: By daughter

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: -50,000
Change %: -7.4%
Price: $0.000000
Shares after: 622,427
Date: 31 Dec 2025
Ownership: Direct

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: +50,000
Change %: +250%
Price: $0.000000
Shares after: 70,000
Date: 31 Dec 2025
Ownership: By son

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: -50,000
Change %: -8%
Price: $0.000000
Shares after: 572,427
Date: 31 Dec 2025
Ownership: Direct

BMEA transaction

Common Stock

Gift

Transaction value: $0
Shares: +50,000
Change %: +250%
Price: $0.000000
Shares after: 70,000
Date: 31 Dec 2025
Ownership: By daughter

BMEA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 174,614
Date: 31 Dec 2025
Ownership: See Footnote
Footnotes: F1

BMEA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,134,989
Date: 31 Dec 2025
Ownership: See Footnote
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The shares are held by a trust having an independent trustee ("Trust 1"). The Reporting Person disclaims Section 16 beneficial ownership of the securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose.

Footnote F2

The shares are held by a trust having an independent trustee ("Trust 2"). The Reporting Person disclaims Section 16 beneficial ownership of the securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose.

SEC remarks

President, Chief Operating Officer, Principal Financial Officer, and Principal Accounting Officer. Effective December 19, 2025, the Reporting Person resigned as a Managing Member of Point Sur Investors, LLC, the general partner of Point Sur Investors Fund I, LP and no longer may be deemed a beneficial owner of any of the Issuer's securities held directly by Point Sur Investors Fund I, LP and Point Sur Investors, LLC.