# Arialys Therapeutics funding: rounds and investors

> Arialys Therapeutics has raised $73M across 2 rounds since 2023. Investors include Alexandria Venture Investments. Every round with its source.

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

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

# Who invested in *Arialys Therapeutics*

2 rounds we have observed, with the one investor 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.

Healthcare

Funding summary Updated 26 Oct 2026

**$73M** raised across 2 rounds since 2023, from 2 sources

**$58M** Seed **$15M** Venture

- **Latest round:** Venture, $15M Jun 2025
- **Biggest round:** $58M Seed · Sept 2023
- **Investors:** 1

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.

2024 2025

**$58M** Seed

**$15M** Venture

- **First round:** Seed, $58M
- **Biggest round:** $58M
- **Between rounds:** 21 months

## The rounds

- **Jun 2025** Venture **$15M** *1 returning* [Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) Source recorded SEC filing: $15M sold, first sale Jun 2025
- **Sept 2023** Seed **$58M** *1 new* [Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) Source recorded

## Founders and team

From Arialys Therapeutics's own website: 2 on the team.

- **April Purcell** Director, Clinical Operations
- **Jeff Littler** Board of Directors

## Everyone who backed them

[Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) VC firm **2** rounds

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

## Quick answers about Arialys Therapeutics

### Who invested in Arialys Therapeutics?

Arialys Therapeutics's investors include Alexandria Venture Investments.

### How much has Arialys Therapeutics raised?

Arialys Therapeutics has raised $73M across 2 rounds since 2023.

### When did Arialys Therapeutics last raise?

Arialys Therapeutics's most recent round was a Venture of $15M in Jun 2025.

### What was Arialys Therapeutics's biggest round?

Arialys Therapeutics's largest round on record is $58M (Seed), in Sept 2023.

### Who backed Arialys Therapeutics first?

Arialys Therapeutics's first round on record, in Sept 2023, was backed by Alexandria Venture Investments.

### What stage is Arialys Therapeutics at?

Arialys Therapeutics's latest named round is a Venture, in Jun 2025.

### Where is Arialys Therapeutics based?

Arialys Therapeutics is based in the United States.

## Companies like Arialys Therapeutics

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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)

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