# Obsidian Therapeutics funding: rounds and investors

> Obsidian Therapeutics has raised $210M across 2 rounds since 2017. Investors include RA Capital Management, Wellington Management and Vertex Ventures.

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

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

# Who invested in *Obsidian Therapeutics*

2 rounds we have observed, with the 13 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

**$210M** raised across 2 rounds since 2017, from 2 sources

**$50M** Series A **$161M** Series C

- **Latest round:** Series C, $161M Apr 2024
- **Step-up i:** 3.2×
- **Investors:** 13

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 2024

**$50M** Series A

**$161M** Series C

- **First round:** Series A, $50M
- **Biggest round:** $161M
- **Between rounds:** 6.3 years

## The rounds

- **Apr 2024** Series C **$161M** *7 new* [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Vertex Ventures](https://millionrounds.com/fund/vertex-ventures) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) [Blue Owl](https://millionrounds.com/fund/blue-owl) Source recorded
- **Dec 2017** Series A **$50M** *6 new* [Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) [Amgen](https://millionrounds.com/fund/amgen) [Vertex](https://millionrounds.com/fund/vertex) [Takeda Digital Ventures](https://millionrounds.com/fund/takeda) [GV Atlas](https://millionrounds.com/fund/gv-atlas) [ShangPharma](https://millionrounds.com/fund/shangpharma) Reported by FinSMEs SEC filing: $32M sold, first sale Nov 2017

## Founders and team

From Obsidian Therapeutics's own website and the SEC filings it signed: 6 on the team.

- **Dana Alexander** Chief Technical Officer
- **Jennifer Peterson** Chief People Officer
- **Julie Feder** Chief Financial Officer
- **David Neafus** Executive Officer i
- **Michael Gilman** Executive Officer, Director i
- **Peter Barrett** Executive Officer, Director i

On the board, as filed i *Carolyn Ng* *Jason Gardner* *Karen Hong*

## 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** 2017 **Series C** 2024 [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Vertex Ventures](https://millionrounds.com/fund/vertex-ventures) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) [Blue Owl](https://millionrounds.com/fund/blue-owl) [Amgen](https://millionrounds.com/fund/amgen) [Vertex](https://millionrounds.com/fund/vertex)

## Everyone who backed them

[RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **1** round

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

[Vertex Ventures](https://millionrounds.com/fund/vertex-ventures) VC firm **1** round

[Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round

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

[Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) VC firm **1** round

[Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) VC firm **1** round

[Blue Owl](https://millionrounds.com/fund/blue-owl) Asset manager **1** round

[Amgen](https://millionrounds.com/fund/amgen) Corporate VC **1** round

[Vertex](https://millionrounds.com/fund/vertex) Hedge fund **1** round

[Takeda Digital Ventures](https://millionrounds.com/fund/takeda) Company **1** round

[GV Atlas](https://millionrounds.com/fund/gv-atlas) Investment firm **1** round

[ShangPharma](https://millionrounds.com/fund/shangpharma) Corporate VC **1** round

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

## Quick answers about Obsidian Therapeutics

### Who invested in Obsidian Therapeutics?

Obsidian Therapeutics's investors include RA Capital Management, Wellington Management, Vertex Ventures, Janus Henderson Investors and Foresite Capital, and 8 more on record.

### How much has Obsidian Therapeutics raised?

Obsidian Therapeutics has raised $210M across 2 rounds since 2017.

### When did Obsidian Therapeutics last raise?

Obsidian Therapeutics's most recent round was a Series C of $161M in Apr 2024.

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

Its most recent round, $161M in Apr 2024, is also its largest on record.

### Who backed Obsidian Therapeutics first?

Obsidian Therapeutics's first round on record, in Dec 2017, was backed by Alexandria Real Estate Equities, Amgen and Vertex and 3 others.

### What stage is Obsidian Therapeutics at?

Obsidian Therapeutics's latest named round is a Series C, in Apr 2024.

### Where is Obsidian Therapeutics based?

Obsidian Therapeutics is based in the United States.

## Companies like Obsidian 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)[**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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