# IGM Biosciences funding: rounds and investors

> IGM Biosciences has raised $209M across 2 rounds since 2019. Investors include Janus Henderson Investors, Vivo Capital and Redmile Group.

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

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

# Who invested in *IGM Biosciences*

2 rounds we have observed, with the 3 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.

Biotech Healthcare

Funding summary Updated 26 Oct 2026

**$209M** raised across 2 rounds since 2019, from 2 sources

**$102M** Series C **$107M** Round

- **Latest round:** Round, $107M Jun 2023
- **Investors:** 3

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.

2020 2021 2022 2023

**$102M** Series C

**$107M** Round

- **First round:** Series C, $102M
- **Biggest round:** $107M
- **Between rounds:** 3.9 years

## The rounds

- **Jun 2023** Round **$107M** *3 returning* [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Redmile Group](https://millionrounds.com/fund/redmile-group) Source recorded SEC filing: $23M sold, first sale Jun 2023
- **Jul 2019** Series C **$102M** *3 new* [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Redmile Group](https://millionrounds.com/fund/redmile-group) Reported by FinSMEs

## Founders and team

From the SEC filings it signed: 6 on the team.

- **Bruce A Keyt** Executive Officer i
- **Chris H. Takimoto** Executive Officer i
- **Fred M. Schwarzer** Executive Officer, Director i
- **George A Gauthier** Executive Officer i
- **Lisa L. Decker** Executive Officer i
- **Misbah A Tahir** Executive Officer i

On the board, as filed i *Christina Teng Topsoe* *Felix J. Baker* *Jakob Haldor Topsoe* *Julie J. Hambleton* *M. Kathleen J. Behrens* *Michael J. Lee* *Michael J. Loberg* *William J. Strohl*

## 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.

**Series C** 2019 **Round** 2023 [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Redmile Group](https://millionrounds.com/fund/redmile-group)

## Everyone who backed them

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

[Vivo Capital](https://millionrounds.com/fund/vivo-capital) Private equity **2** rounds

[Redmile Group](https://millionrounds.com/fund/redmile-group) VC firm **2** rounds

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

## Quick answers about IGM Biosciences

### Who invested in IGM Biosciences?

IGM Biosciences's investors include Janus Henderson Investors, Vivo Capital and Redmile Group.

### How much has IGM Biosciences raised?

IGM Biosciences has raised $209M across 2 rounds since 2019.

### When did IGM Biosciences last raise?

IGM Biosciences's most recent round was an Undisclosed round of $107M in Jun 2023.

### What was IGM Biosciences's biggest round?

Its most recent round, $107M in Jun 2023, is also its largest on record.

### Who backed IGM Biosciences first?

IGM Biosciences's first round on record, in Jul 2019, was backed by Janus Henderson Investors, Vivo Capital and Redmile Group.

### What stage is IGM Biosciences at?

IGM Biosciences's latest named round is an Undisclosed round, in Jun 2023.

### Where is IGM Biosciences based?

IGM Biosciences is based in the United States.

## Companies like IGM Biosciences

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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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