# Claris Biotherapeutics funding: rounds and investors

> Claris Biotherapeutics has raised $124M across 2 rounds since 2025. Investors include RA Capital Management, Novo Holdings and Janus Henderson Investors.

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

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

# Who invested in *Claris Biotherapeutics*

2 rounds we have observed, with the 5 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Pharma

Raised 4 months ago

Funding summary Updated 26 Oct 2026

**$124M** raised across 2 rounds since 2025, from 2 sources

**$5.6M** Debt **$118M** Series B

- **Latest round:** Series B, $118M Jul 2026
- **Step-up i:** 21.1×
- **Investors:** 5

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

**$5.6M** Debt

**$118M** Series B

- **First round:** Debt, $5.6M
- **Biggest round:** $118M
- **Between rounds:** 16 months

## The rounds

- **Jul 2026** Series B **$118M** *2 new* *3 returning* [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Novo Holdings](https://millionrounds.com/fund/novo-ventures) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) Source recorded SEC filing: $56M sold, first sale Aug 2026
- **Mar 2025** Debt **$5.6M** *3 new* [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Novo Holdings](https://millionrounds.com/fund/novo-ventures) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Source recorded SEC filing: $3.3M sold, first sale Feb 2025

## Founders and team

From Claris Biotherapeutics's own website: 3 on the team.

- **Stephen Brady** President and Chief Executive Officer
- **Brian Baum** Chief Commercial Officer
- **Henry Rath** Chief Business Officer

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Debt** 2025 **Series B** 2026 [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Novo Holdings](https://millionrounds.com/fund/novo-ventures) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital)

## Everyone who backed them

[RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **2** rounds

[Novo Holdings](https://millionrounds.com/fund/novo-ventures) VC firm **2** rounds

[Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **2** rounds

[Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) VC firm **1** round

[Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) VC firm **1** round

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

## Quick answers about Claris Biotherapeutics

### Who invested in Claris Biotherapeutics?

Claris Biotherapeutics's investors include RA Capital Management, Novo Holdings, Janus Henderson Investors, Catalio Capital Management and Samsara BioCapital.

### How much has Claris Biotherapeutics raised?

Claris Biotherapeutics has raised $124M across 2 rounds since 2025.

### When did Claris Biotherapeutics last raise?

Claris Biotherapeutics's most recent round was a Series B of $118M in Jul 2026.

### What was Claris Biotherapeutics's biggest round?

Its most recent round, $118M in Jul 2026, is also its largest on record.

### Who backed Claris Biotherapeutics first?

Claris Biotherapeutics's first round on record, in Mar 2025, was backed by RA Capital Management, Novo Holdings and Janus Henderson Investors.

### What stage is Claris Biotherapeutics at?

Claris Biotherapeutics's latest named round is a Series B, in Jul 2026.

### Where is Claris Biotherapeutics based?

Claris Biotherapeutics is based in the United States.

## Companies like Claris Biotherapeutics

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

[**Matchpoint Therapeutics** $220M · Oct 2026](https://millionrounds.com/company/matchpoint-therapeutics)[**Rx Bandz** Oct 2026](https://millionrounds.com/company/rx-bandz)[**Hera Biotech** $1.8M · Sept 2026](https://millionrounds.com/company/hera-biotech)[**GevRx Nutraceuticals** $300K · Sept 2026](https://millionrounds.com/company/gevrx-nutraceuticals)[**RegCell** $81M · Sept 2026](https://millionrounds.com/company/regcell)[**ClearSight Therapeutics** $307K · Sept 2026](https://millionrounds.com/company/clearsight-therapeutics)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app
