# Sio Gene Therapies funding: rounds and investors

> Sio Gene Therapies has raised $75M across 1 round since 2020. Investors include Hercules Capital. Every round with its source.

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

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

# Who invested in *Sio Gene Therapies*

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.

Pharma

Funding summary Updated 26 Oct 2026

**$75M** raised across 1 round since 2020, from 1 source

- **Latest round:** Round, $75M Feb 2020
- **Investors:** 1

See who backed them

## The rounds

- **Feb 2020** Round **$75M** [Hercules Capital](https://millionrounds.com/fund/hercules-capital) Source recorded

## Everyone who backed them

[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=sio-gene-therapies).

## Quick answers about Sio Gene Therapies

### Who invested in Sio Gene Therapies?

Sio Gene Therapies's investors include Hercules Capital.

### How much has Sio Gene Therapies raised?

Sio Gene Therapies has raised $75M across 1 round since 2020.

### When did Sio Gene Therapies last raise?

Sio Gene Therapies's most recent round was an Undisclosed round of $75M in Feb 2020.

### What was Sio Gene Therapies's biggest round?

Its most recent round, $75M in Feb 2020, is also its largest on record.

### Who backed Sio Gene Therapies first?

Sio Gene Therapies's first round on record, in Feb 2020, was backed by Hercules Capital.

### What stage is Sio Gene Therapies at?

Sio Gene Therapies's latest named round is an Undisclosed round, in Feb 2020.

## Companies like Sio Gene Therapies

In the same sector, and raised in the last eighteen months.

[**Cheiron** $8.0M · Jul 2026](https://millionrounds.com/company/cheiron)[**Celloid** $6.1M · Mar 2026](https://millionrounds.com/company/celloid)[**CSR Biotech** Mar 2026](https://millionrounds.com/company/csr-biotech)[**Validfor** $1.2M · Feb 2026](https://millionrounds.com/company/validfor)[**Huixin Bio** $14M · Feb 2026](https://millionrounds.com/company/huixin-bio)[**Alioth** $14M · Jan 2026](https://millionrounds.com/company/alioth)

## 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