United States · 
Who invested in Third Arc Bio?
Third Arc Bio's investors include Andreessen Horowitz, Hill House Capital, Janus Henderson Investors, Cormorant Asset Management and Foresite Capital.
United States · Series A startup
Who invested in Third Arc Bio
Funding summaryUpdated 26 Oct 2026
$52Mraised across 1 round since 2026, from 1 source
- Latest round
- Series A, $52MFeb 2026
- Investors
- 5
The rounds
- Feb 2026Series A$52M
Andreessen Horowitz
Hill House Capital
Janus Henderson Investors
Cormorant Asset Management
Foresite Capital
Source recorded
Founders and team
From Third Arc Bio's own website: 4 on the team.
- Jen TetiSenior Vice President, Clinical Operations
- Matt SheroffVice President, Corporate and Business Development
- Tom EvansSenior Vice President, Finance
- Debi WatsonChief Business and Operations Officer
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Third Arc 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.
Quick answers about Third Arc Bio
How much has Third Arc Bio raised?
Third Arc Bio has raised $52M across 1 round since 2026.
When did Third Arc Bio last raise?
Third Arc Bio's most recent round was a Series A of $52M in Feb 2026.
What was Third Arc Bio's biggest round?
Its most recent round, $52M in Feb 2026, is also its largest on record.
Who backed Third Arc Bio first?
Third Arc Bio's first round on record, in Feb 2026, was backed by Andreessen Horowitz, Hill House Capital and Janus Henderson Investors and 2 others.
What stage is Third Arc Bio at?
Third Arc Bio's latest named round is a Series A, in Feb 2026.
Where is Third Arc Bio based?
Third Arc Bio is based in the United States.
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