# Biomea Fusion funding: rounds and investors

> Biomea Fusion has raised $25M across 1 round since 2025. Investors include Janus Henderson Investors, Cormorant Asset Management and RTW Investments LLC.

Source: https://millionrounds.com/company/biomea-fusion (Millionrounds; every figure on the page links to its filing or article)

United States · [Funded startup](https://millionrounds.com/companies)

# Who invested in *Biomea Fusion*

One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Funding summary Updated 26 Oct 2026

**$25M** raised across 1 round since 2025, from 1 source

- **Latest round:** Round, $25M Oct 2025
- **Investors:** 3

See who backed them

## The rounds

- **Oct 2025** Round **$25M** [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) [RTW Investments LLC](https://millionrounds.com/fund/rtw-investments-lp) Source recorded

## Founders and team

From Biomea Fusion's own website and the SEC filings it signed: 4 on the team.

- **Caroline Perez-Dupont** Senior Vice President, Legal
- **Ramses Erdtmann** Chief Development Officer
- **Heow Tan** Executive VP, Research
- **Thomas Butler** Executive Officer, Director i

## Everyone who backed them

[Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round

[Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) Private equity **1** round

[RTW Investments LLC](https://millionrounds.com/fund/rtw-investments-lp) Growth equity **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=biomea-fusion).

## Also claim to have backed them

This firm lists Biomea Fusion as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Aisling Capital](https://millionrounds.com/fund/aisling-capital) Private equity Per its own site

## Quick answers about Biomea Fusion

### Who invested in Biomea Fusion?

Biomea Fusion's investors include Janus Henderson Investors, Cormorant Asset Management and RTW Investments LLC.

### How much has Biomea Fusion raised?

Biomea Fusion has raised $25M across 1 round since 2025.

### When did Biomea Fusion last raise?

Biomea Fusion's most recent round was an Undisclosed round of $25M in Oct 2025.

### What was Biomea Fusion's biggest round?

Its most recent round, $25M in Oct 2025, is also its largest on record.

### Who backed Biomea Fusion first?

Biomea Fusion's first round on record, in Oct 2025, was backed by Janus Henderson Investors, Cormorant Asset Management and RTW Investments LLC.

### What stage is Biomea Fusion at?

Biomea Fusion's latest named round is an Undisclosed round, in Oct 2025.

### Where is Biomea Fusion based?

Biomea Fusion is based in the United States.

## Companies like Biomea Fusion

In the same sector, and raised in the last eighteen months.

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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