# Generation Bio funding: rounds and investors

> Generation Bio has raised $176M across 2 rounds since 2018. Investors include Casdin Capital, Fidelity and Wellington Management. Every round with its source.

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

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

# Who invested in *Generation Bio*

2 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 Healthcare

Funding summary Updated 26 Oct 2026

**$176M** raised across 2 rounds since 2018, from 2 sources

**$100M** Series B **$76M** Round

- **Latest round:** Round, $76M Mar 2023
- **Biggest round:** $100M Series B · Feb 2018
- **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.

2018 2019 2020 2021 2022 2023

**$100M** Series B

**$76M** Round

- **First round:** Series B, $100M
- **Biggest round:** $100M
- **Between rounds:** 5 years

## The rounds

- **Mar 2023** Round **$76M** *3 new* *1 returning* [Fidelity](https://millionrounds.com/fund/fidelity) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [Casdin Capital](https://millionrounds.com/fund/casdin-capital) Source recorded
- **Feb 2018** Series B **$100M** *4 new* [Deerfield](https://millionrounds.com/fund/deerfield) [Casdin Capital](https://millionrounds.com/fund/casdin-capital) [Foresite](https://millionrounds.com/fund/foresite) Fidelity Management & Research Company/ Invus Reported by FinSMEs SEC filing: $100M sold, first sale Feb 2018

## Founders and team

From the SEC filings it signed: 3 on the team.

- **Geoffrey McDonough** Executive Officer, Director i
- **Mark Angelino** Executive Officer i
- **Thomas Graney** Executive Officer i

On the board, as filed i *Anthony Quinn* *Catherine Stehman-Breen* *Charlie Rowland* *Donald Nicholson* *Gustav Christensen* *Jason Rhodes* *Jeff Jonas*

## 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 B** 2018 **Round** 2023 [Casdin Capital](https://millionrounds.com/fund/casdin-capital) [Fidelity](https://millionrounds.com/fund/fidelity) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Deerfield](https://millionrounds.com/fund/deerfield) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [Foresite](https://millionrounds.com/fund/foresite) Fidelity Management & Research Company/ Invus

## Everyone who backed them

[Casdin Capital](https://millionrounds.com/fund/casdin-capital) VC firm **2** rounds

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

[Wellington Management](https://millionrounds.com/fund/wellington-management) VC firm **1** round

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

[Foresite Capital](https://millionrounds.com/fund/forsite-capital) Private equity **1** round

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

Fidelity Management & Research Company/ Invus 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=generation-bio).

## Also claim to have backed them

This firm lists Generation 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.

[Atlas Venture](https://millionrounds.com/fund/atlas-venture) VC firm Per its own site

## Quick answers about Generation Bio

### Who invested in Generation Bio?

Generation Bio's investors include Casdin Capital, Fidelity, Wellington Management, Deerfield and Foresite Capital, and 2 more on record.

### How much has Generation Bio raised?

Generation Bio has raised $176M across 2 rounds since 2018.

### When did Generation Bio last raise?

Generation Bio's most recent round was an Undisclosed round of $76M in Mar 2023.

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

Generation Bio's largest round on record is $100M (Series B), in Feb 2018.

### Who backed Generation Bio first?

Generation Bio's first round on record, in Feb 2018, was backed by Deerfield, Casdin Capital and Foresite and 1 others.

### What stage is Generation Bio at?

Generation Bio's latest named round is an Undisclosed round, in Mar 2023.

### Where is Generation Bio based?

Generation Bio is based in the United States.

## Companies like Generation 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)[**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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