# Octant Bio funding: rounds and investors

> Octant Bio has raised $80M across 1 round since 2022. Investors include Andreessen Horowitz, SV Angel and Gaingels. Every round with its source.

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

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

# Who invested in *Octant Bio*

One round we have observed, with the 6 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

**$80M** raised across 1 round since 2022, from 1 source

- **Latest round:** Series B, $80M Apr 2022
- **Investors:** 6

See who backed them

## The rounds

- **Apr 2022** Series B **$80M** [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [SV Angel](https://millionrounds.com/fund/sv-angel) [Gaingels](https://millionrounds.com/fund/gaingels) [8VC](https://millionrounds.com/fund/8vc) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) Source recorded

## Everyone who backed them

[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round

[SV Angel](https://millionrounds.com/fund/sv-angel) VC firm **1** round

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **1** round

[8VC](https://millionrounds.com/fund/8vc) VC firm **1** round

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

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

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

## Also claim to have backed them

This firm lists Octant 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.

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

## Quick answers about Octant Bio

### Who invested in Octant Bio?

Octant Bio's investors include Andreessen Horowitz, SV Angel, Gaingels, 8VC and Lux Capital, and 1 more on record.

### How much has Octant Bio raised?

Octant Bio has raised $80M across 1 round since 2022.

### When did Octant Bio last raise?

Octant Bio's most recent round was a Series B of $80M in Apr 2022.

### What was Octant Bio's biggest round?

Its most recent round, $80M in Apr 2022, is also its largest on record.

### Who backed Octant Bio first?

Octant Bio's first round on record, in Apr 2022, was backed by Andreessen Horowitz, SV Angel and Gaingels and 3 others.

### What stage is Octant Bio at?

Octant Bio's latest named round is a Series B, in Apr 2022.

### Where is Octant Bio based?

Octant Bio is based in the United States.

## Companies like Octant 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)

## 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