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Third Rock Ventures

Bio company-creation firm
VC Sector Specialist 📍 Boston, MA Founded 2007
AUM
$3.8B
as of 2026-Q1
SMALL
Third Rock Ventures was founded in 2007 in Boston. Bio-only firm with a company-creation model similar to Flagship's. Founded Agios, Alnylam, Bluebird Bio, and Editas Medicine.

Firm Profile

Firm Type
VC
Subtype
Sector Specialist
Founded
2007
HQ
Boston, MA
Country
USA

Notable Partners

Robert TepperMark LevinCary Pfeffer

Notable Portfolio

alnylamagiossage-therapeutics

Investment Focus

Stages
Seed · Series A
Sectors
Bio · Therapeutics
VCBio SpecialistCompany-Creation
Investor data reflects publicly disclosed AUM, fund sizes, and portfolio holdings as of 2026-Q1. Refreshed periodically.