# Graviton Bioscience funding: rounds and investors

> Graviton Bioscience has raised $25M across 1 round since 2024. Investors include Sanofi. Every round with its source.

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

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

# Who invested in *Graviton Bioscience*

One round we have observed, with the one investor 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 2024, from 1 source

- **Latest round:** Growth, $25M Jan 2024
- **Investors:** 1

See who backed them

## The rounds

- **Jan 2024** Growth **$25M** [Sanofi](https://millionrounds.com/fund/sanofi) Source recorded SEC filing: $25M sold, first sale Nov 2023

## Founders and team

From the SEC filings it signed: 1 founder, 1 on the team.

**Dr. Samuel Waksal** Founder and Chief Executive Officer of Graviton Bioscience *Named on its 2024 Form D*

- **James D Boylan** Chief Executive Officer of Enavate Sciences

On the board, as filed i *Bihua Chen* *David D MacMillan* *Jeremy D Levin* *Ran D Nussbaum* *Stelios D Papadopoulos*

## Everyone who backed them

[Sanofi](https://millionrounds.com/fund/sanofi) Investment firm **1** round

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

## Quick answers about Graviton Bioscience

### Who invested in Graviton Bioscience?

Graviton Bioscience's investors include Sanofi.

### How much has Graviton Bioscience raised?

Graviton Bioscience has raised $25M across 1 round since 2024.

### When did Graviton Bioscience last raise?

Graviton Bioscience's most recent round was a Growth of $25M in Jan 2024.

### What was Graviton Bioscience's biggest round?

Its most recent round, $25M in Jan 2024, is also its largest on record.

### Who backed Graviton Bioscience first?

Graviton Bioscience's first round on record, in Jan 2024, was backed by Sanofi.

### What stage is Graviton Bioscience at?

Graviton Bioscience's latest named round is a Growth, in Jan 2024.

### Where is Graviton Bioscience based?

Graviton Bioscience is based in the United States.

## Companies like Graviton Bioscience

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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