# Gritstone bio funding: rounds and investors

> Gritstone bio has raised $33M across 1 round since 2024. Investors include Redmile Group, Lilly Asia Ventures and Casdin Capital. Every round with its source.

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

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

# Who invested in *Gritstone bio*

One round we have observed, with the 4 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

**$33M** raised across 1 round since 2024, from 1 source

- **Latest round:** Round, $33M Apr 2024
- **Investors:** 4

See who backed them

## The rounds

- **Apr 2024** Round **$33M** [Redmile Group](https://millionrounds.com/fund/redmile-group) [Lilly Asia Ventures](https://millionrounds.com/fund/lilly-asia-ventures) [Casdin Capital](https://millionrounds.com/fund/casdin-capital) [Hercules Capital](https://millionrounds.com/fund/hercules-capital) Source recorded

## Founders and team

From Gritstone bio's own website and the SEC filings it signed: 7 on the team.

- **Wayne Robinson** CEO
- **Rachel Miller** VP of Operations
- **Andrew Allen** Executive Officer, Director i
- **Erin E. Jones** Executive Officer i
- **Karin E. Joos** Executive Officer i
- **Matthew Hawryluk** Executive Officer i
- **Vassiliki Economides** Executive Officer i

On the board, as filed i *Clare A. Fisher* *Elaine E. Jones* *Lawrence E. Corey* *Naiyer A. Rizvi* *Shefali E. Agarwal* *Steve A. Krognes*

## Everyone who backed them

[Redmile Group](https://millionrounds.com/fund/redmile-group) VC firm **1** round

[Lilly Asia Ventures](https://millionrounds.com/fund/lilly-asia-ventures) VC firm **1** round

[Casdin Capital](https://millionrounds.com/fund/casdin-capital) VC firm **1** round

[Hercules Capital](https://millionrounds.com/fund/hercules-capital) Venture debt **1** round

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

## Also claim to have backed them

This firm lists Gritstone bio 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.

[Frazier Life Sciences](https://millionrounds.com/fund/frazier-life-sciences) VC firm Per its own site

## Quick answers about Gritstone bio

### Who invested in Gritstone bio?

Gritstone bio's investors include Redmile Group, Lilly Asia Ventures, Casdin Capital and Hercules Capital.

### How much has Gritstone bio raised?

Gritstone bio has raised $33M across 1 round since 2024.

### When did Gritstone bio last raise?

Gritstone bio's most recent round was an Undisclosed round of $33M in Apr 2024.

### What was Gritstone bio's biggest round?

Its most recent round, $33M in Apr 2024, is also its largest on record.

### Who backed Gritstone bio first?

Gritstone bio's first round on record, in Apr 2024, was backed by Redmile Group, Lilly Asia Ventures and Casdin Capital and 1 others.

### What stage is Gritstone bio at?

Gritstone bio's latest named round is an Undisclosed round, in Apr 2024.

### Where is Gritstone bio based?

Gritstone bio is based in the United States.

## Companies like Gritstone bio

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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