# Avrobio funding: rounds and investors

> Avrobio has raised $85M across 2 rounds since 2016. Investors include Atlas Venture, Morningside Group and Cormorant Asset Management.

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

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

# Who invested in *Avrobio*

2 rounds we have observed, with the 10 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

**$85M** raised across 2 rounds since 2016, from 2 sources

**$25M** Series A **$60M** Round

- **Latest round:** Round, $60M Feb 2018
- **Step-up i:** 2.4×
- **Investors:** 10

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.

2017 2018

**$25M** Series A

**$60M** Round

- **First round:** Series A, $25M
- **Biggest round:** $60M
- **Between rounds:** 18 months

## The rounds

- **Feb 2018** Round **$60M** *8 new* [Morningside Group](https://millionrounds.com/fund/morningside) [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) [Atlas](https://millionrounds.com/fund/atlas-2) [Brace Pharma](https://millionrounds.com/fund/brace-pharma) [Eventide](https://millionrounds.com/fund/eventide) Clarus SV Health Surveyor Capital/ Aisling Reported by FinSMEs SEC filing: $60M sold, first sale Jan 2018
- **Aug 2016** Series A **$25M** *2 new* [Atlas Venture](https://millionrounds.com/fund/atlas-venture) Clarus & Life Sciences Reported by Businesswire SEC filing: $7.5M sold, first sale Jul 2016

## Founders and team

From the SEC filings it signed: 5 on the team.

- **Christopher Mason** Executive Officer i
- **Deanna Petersen** Executive Officer i
- **Geoffrey MacKay** Executive Officer, Director i
- **Katina Dorton** Executive Officer i
- **Kim Warren** Executive Officer i

On the board, as filed i *Bruce Booth* *Christopher Paige* *Ian Clark* *Joshua Resnick* *Scott Requadt*

## 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** 2016 **Round** 2018 [Atlas Venture](https://millionrounds.com/fund/atlas-venture) [Morningside Group](https://millionrounds.com/fund/morningside) [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) [Atlas](https://millionrounds.com/fund/atlas-2) [Brace Pharma](https://millionrounds.com/fund/brace-pharma) [Eventide](https://millionrounds.com/fund/eventide) Clarus Clarus & Life Sciences Surveyor Capital/ Aisling SV Health

## Everyone who backed them

[Atlas Venture](https://millionrounds.com/fund/atlas-venture) VC firm **1** round

[Morningside Group](https://millionrounds.com/fund/morningside) VC firm **1** round

[Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) Private equity **1** round

[Atlas](https://millionrounds.com/fund/atlas-2) Private equity **1** round

[Brace Pharma](https://millionrounds.com/fund/brace-pharma) Company **1** round

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

Clarus no record of our own yet **1** round

Clarus & Life Sciences no record of our own yet **1** round

Surveyor Capital/ Aisling no record of our own yet **1** round

SV Health no record of our own yet **1** round

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

## Also claim to have backed them

These 2 firms list Avrobio 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.

[Aisling Capital](https://millionrounds.com/fund/aisling-capital) Private equity Per its own site

[Brace Pharma](https://millionrounds.com/fund/brace-pharma-capital) VC firm Per its own site

## Quick answers about Avrobio

### Who invested in Avrobio?

Avrobio's investors include Atlas Venture, Morningside Group, Cormorant Asset Management, Atlas and Brace Pharma, and 5 more on record.

### How much has Avrobio raised?

Avrobio has raised $85M across 2 rounds since 2016.

### When did Avrobio last raise?

Avrobio's most recent round was an Undisclosed round of $60M in Feb 2018.

### What was Avrobio's biggest round?

Its most recent round, $60M in Feb 2018, is also its largest on record.

### Who backed Avrobio first?

Avrobio's first round on record, in Aug 2016, was backed by Atlas Venture and Clarus & Life Sciences.

### What stage is Avrobio at?

Avrobio's latest named round is an Undisclosed round, in Feb 2018.

### Where is Avrobio based?

Avrobio is based in the United States.

## Companies like Avrobio

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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