13D Filings
Biomea Fusion, Inc.
BMEA
Amendment
Ownership

5.31%

Total Shares

3,681,664

Issuer CIK

1840439

CUSIP

09077A106

Event Date

Oct 7, 2025

Accepted

Oct 10, 2025, 04:06 PM

Reporting Persons (6)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Chen Bihua
Individual
5.31%3,681,664110,7923,570,872
Cormorant Asset Management, LP
Partnership
5.15%3,570,87203,570,872
Cormorant Global Healthcare Master Fund, LP
Partnership
2.59%1,795,92801,795,928
Cormorant Global Healthcare GP, LLC
Other
2.59%1,795,92801,795,928
Cormorant Private Healthcare Fund III LP
Partnership
2.48%1,717,23201,717,232
Cormorant Private Healthcare GP III, LLC
Other
2.48%1,717,23201,717,232
Disclosure Items (3)

Security Title

Common Stock

Issuer Name

Biomea Fusion, Inc.

Issuer Address

1599 INDUSTRIAL ROAD, SAN CARLOS, CA, 94070

Filing Persons

Cormorant Global Healthcare Master Fund, LP Cormorant Global Healthcare GP, LLC Cormorant Private Healthcare Fund III, LP Cormorant Private Healthcare GP III, LLC Cormorant Asset Management, LP Bihua Chen

Business Address

200 Clarendon Street, 52nd Floor Boston, MA 02116

Citizenship

Cormorant Global Healthcare Master Fund, LP - Cayman Islands Cormorant Global Healthcare GP, LLC - Delaware Cormorant Private Healthcare Fund III, LP - Delaware Cormorant Private Healthcare GP III, LLC - Delaware Cormorant Asset Management, LP - Delaware Bihua Chen - United States

Percentage of Class

See Items 7-13 of the cover page and Item 2.

Number of Shares

See Items 7-13 of the cover page and Item 2. The percentages reported herein with respect to the Reporting Persons' holdings are calculated based upon (i) a statement in a Prospectus filed by the Issuer on October 7, 2025 that there would be 69,322,377 shares of Common Stock outstanding following the closing of a public offering described therein, and (ii) a statement in a Current Report on Form 8-K filed by the Issuer on October 7, 2025 reporting that the public offering was expected to close on October 8, 2025. The shares reported for Bihua Chen reflect shares of Common Stock that she has the right to receive within 60 days upon the exercise of stock options granted to her in her capacity as a director of the Issuer.

Transactions

The Reporting Persons did not engage in any transactions in securities of the Issuer during the sixty day period prior to the filing of this Schedule 13D.

Shareholders

Not applicable.

Date of 5% Ownership

Not applicable.

Biomea Fusion, Inc. — Schedule 13D | 13D Filings