Private company
Third Rock Ventures IV, L.P.
American company, incorporated in Massachusetts. Summary from the record
Last updated Oct 21, 2026.
Overview
- HeadquartersMA1
Corporate structure
Third Rock Ventures IV, L.P. sits at the top of its group. 4 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
- Third Rock Ventures IV, L.P. MA
- Magenta Therapeutics Stake · Cambridge, Massachusetts, United States
- Maze Therapeutics, Inc. Stake · South San Francisco, California
- Tango Therapeutics (United States) Stake · Boston, Massachusetts
Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (3 companies). Each entity in the chart links to its source.
Stakes it holds
Third Rock Ventures IV, L.P. has told the SEC it owns more than 5% of 3 companies, latest first (Schedules 13D and 13G).
- Maze Therapeutics, Inc.SCHEDULE 13G/A May 9, 2025 to Feb 13, 20262
- Tango Therapeutics (United States)SCHEDULE 13D/A Sep 4, 2024 to Feb 10, 20263
- Magenta TherapeuticsSC 13G/A Feb 14, 2022 to Feb 14, 20244
Sources
The numbers on this page point here. Each one links to the record it came from.
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