# Caribou Biosciences funding: rounds and investors

> Caribou Biosciences has raised $139M across 3 rounds since 2014. Investors include Novartis, National Science Foundation and Janus Henderson Investors.

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

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

# Who invested in *Caribou Biosciences*

3 rounds we have observed, with the 7 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

Funding summary Updated 26 Oct 2026

**$139M** raised across 3 rounds since 2014, from 3 sources

**$2.9M** Series A **$12M** Series A **$125M** Round

- **Latest round:** Round, $125M Jul 2023
- **Step-up i:** 10.8×
- **Investors:** 7

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.

2016 2018 2020 2022

**$2.9M** Series A

**$12M** Series A

**$125M** Round

- **First round:** Series A, $2.9M
- **Biggest round:** $125M
- **Usual gap between rounds:** 8.3 years

## The rounds

- **Jul 2023** Round **$125M** *4 new* *1 returning* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Novartis](https://millionrounds.com/fund/novartis) [Maverick Ventures](https://millionrounds.com/fund/maverick-ventures) [AbbVie](https://millionrounds.com/fund/abbvie) Source recorded
- **Mar 2015** Series A **$12M** *3 new* [Marc Bell Capital](https://millionrounds.com/fund/marc-bell-capital) [Novartis](https://millionrounds.com/fund/novartis) [Jenny Rooke](https://millionrounds.com/fund/jenny-rooke) From a historical funding record SEC filing: $12M sold, first sale Sept 2014
- **Oct 2014** Series A **$2.9M** No investor was named in the report. From a historical funding record SEC filing: $2.9M sold, first sale Sept 2014

## Founders and team

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

- **Reigin Zawadzki** Chief people officer
- **Sri Ryali** Chief financial officer
- **Andrew Guggenhime** Board of directors
- **Barbara G. McClung** Executive Officer i
- **Jason B. O'Byrne** Executive Officer i
- **Rachel E. Haurwitz** Executive Officer, Director i
- **Steven B. Kanner** Executive Officer i

On the board, as filed i *Jeffrey G. Long-McGie* *Natalie R. Sacks* *Robert E. Weisskoff* *Santhosh G. Palani*

## 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 A** 2014 **Series A** 2015 **Round** 2023 [Novartis](https://millionrounds.com/fund/novartis) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Marc Bell Capital](https://millionrounds.com/fund/marc-bell-capital) [Maverick Ventures](https://millionrounds.com/fund/maverick-ventures) [AbbVie](https://millionrounds.com/fund/abbvie) [Jenny Rooke](https://millionrounds.com/fund/jenny-rooke)

## Everyone who backed them

[Novartis](https://millionrounds.com/fund/novartis) VC firm **2** rounds

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round

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

[Marc Bell Capital](https://millionrounds.com/fund/marc-bell-capital) Family office **1** round

[Maverick Ventures](https://millionrounds.com/fund/maverick-ventures) VC firm **1** round

[AbbVie](https://millionrounds.com/fund/abbvie) Corporate VC **1** round

[Jenny Rooke](https://millionrounds.com/fund/jenny-rooke) Angel **1** round

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

## Also claim to have backed them

These 2 firms list Caribou Biosciences as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Jesse Robbins](https://millionrounds.com/fund/jesse-robbins) VC firm Per its own site

[Hyperspeed Ventures](https://millionrounds.com/fund/hyperspeed-ventures) VC firm Per its own site

## Quick answers about Caribou Biosciences

### Who invested in Caribou Biosciences?

Caribou Biosciences's investors include Novartis, National Science Foundation, Janus Henderson Investors, Marc Bell Capital and Maverick Ventures, and 2 more on record.

### How much has Caribou Biosciences raised?

Caribou Biosciences has raised $139M across 3 rounds since 2014.

### When did Caribou Biosciences last raise?

Caribou Biosciences's most recent round was an Undisclosed round of $125M in Jul 2023.

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

Its most recent round, $125M in Jul 2023, is also its largest on record.

### Who backed Caribou Biosciences first?

Caribou Biosciences's first round on record, in Mar 2015, was backed by Marc Bell Capital, Novartis and Jenny Rooke.

### What stage is Caribou Biosciences at?

Caribou Biosciences's latest named round is an Undisclosed round, in Jul 2023.

### Where is Caribou Biosciences based?

Caribou Biosciences is based in the United States.

## Companies like Caribou 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)[**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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