Third Rock Ventures
Not publicly disclosed in the reviewed sources. · company-creation, seed, series-a · US
US life-sciences company-creation firm with a $1.1B Fund VI.
Tier 2 · ranked #80bio
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Key facts
| Fund size | $1.1B Fund VI |
| Stage | company-creation, seed, series-a |
| Typical first check | Not publicly disclosed in the reviewed sources. |
| Sectors | bio, therapeutics |
| Geography | US |
| Status | open |
Always confirm on the official page before applying — dates and terms change.
Background
US life-sciences company-creation firm with a $1.1B Fund VI. This pass separates published fund behavior from private mechanics and catalog assumptions.
How the application really works
No dedicated public pitch route was confirmed; route through a relevant investor's published professional profile or a trusted introduction.
Tips
- Show direct fit to company-creation / seed / series-a and the published thesis.
- Route to a named investor whose current remit matches the company.
- State geography, round size, traction and why this firm is the right partner.
Watch out for
- Outside the published stage, geography or sector mandate.
- Treating a generic media or LP channel as a founder intake.
- Assuming unpublished check, ownership or timing data.
Track record
- Third Rock reported 60 companies and 18 products brought to market.
No comparable acceptance rate is published.
Investment thesis
Create and build transformative biotechnology and healthcare companies.
How to reach them
- No dedicated public pitch route was confirmed; route through a relevant investor's published professional profile or a trusted introduction.
Notable portfolio
Bluebird BioSage TherapeuticsRelay Therapeutics
Frequently asked questions
- What stages does the fund target?
- company-creation, seed, series-a
- Where does it invest?
- US
- What is the latest disclosed vehicle or capital base?
- $1.1B Fund VI
- What check size does it write?
- Not publicly disclosed in the reviewed sources.
- How can a founder approach the firm?
- No dedicated public pitch route was confirmed; route through a relevant investor's published professional profile or a trusted introduction.
- What remains unknown?
- Investment acceptance rate is not published. check min is not publicly disclosed. check max is not publicly disclosed. leads rounds is not publicly disclosed.
Related venture funds
Sources
- www.thirdrockventures.com — Current official strategy, geography and activity. (checked 2026-08-10)
- www.thirdrockventures.com/people — Current official investing-team roster. (checked 2026-08-10)
- www.thirdrockventures.com/media-center — Official current vehicle or capital-scale evidence. (checked 2026-08-10)