United States · 
Who invested in 2seventy bio?
2seventy bio's investors include Janus Henderson Investors, RTW Investments LLC and Bain Capital Life Sciences.
United States · Funded startup
Who invested in 2seventy bio
Funding summaryUpdated 26 Oct 2026
$125Mraised across 1 round since 2023, from 1 source
- Latest round
- Round, $125MFeb 2023
- Investors
- 3
The rounds
- Feb 2023
Founders and team
From the SEC filings it signed: 4 on the team.
- Nick LeschlyExecutive Officer, Directori
- Nicola HeffronExecutive Officeri
- Philip D. GregoryExecutive Officeri
- William D. BairdExecutive Officeri
On the board, as filediDaniel D. LynchDenice R. TorresMarcela V. MausRamy R. IbrahimSarah JS GlickmanWilliam R. Sellers
Everyone who backed them
Bain Capital Life SciencesPrivate equity1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about 2seventy bio
How much has 2seventy bio raised?
2seventy bio has raised $125M across 1 round since 2023.
When did 2seventy bio last raise?
2seventy bio's most recent round was an Undisclosed round of $125M in Feb 2023.
What was 2seventy bio's biggest round?
Its most recent round, $125M in Feb 2023, is also its largest on record.
Who backed 2seventy bio first?
2seventy bio's first round on record, in Feb 2023, was backed by Janus Henderson Investors, RTW Investments LLC and Bain Capital Life Sciences.
What stage is 2seventy bio at?
2seventy bio's latest named round is an Undisclosed round, in Feb 2023.
Where is 2seventy bio based?
2seventy bio is based in the United States.
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