Private company
Atlas Venture Fund X, L.P.
American company, incorporated in Delaware. Summary from the record
Last updated Oct 21, 2026.
Overview
- HeadquartersDE1
Corporate structure
Atlas Venture Fund X, L.P. sits at the top of its group. 10 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
- Atlas Venture Fund X, L.P. DE
- Disc Medicine, Inc. Stake · Watertown, Massachusetts
- Generation Bio Co. Stake · Cambridge, Massachusetts
- ImageneBio, Inc. Stake · San Diego, California
- Kymera Therapeutics Stake · Watertown
- Magenta Therapeutics Stake · Cambridge, Massachusetts, United States
- Obsidian Therapeutics, Inc. Stake · Cambridge, Massachusetts
- Q32 Bio Inc. Stake · Waltham, Massachusetts
- Replimune Group, Inc. Stake · Woburn, Massachusetts, United States
- Tectonic Therapeutic, Inc. Stake · Watertown, Massachusetts
Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (9 companies). Each entity in the chart links to its source.
Stakes it holds
Atlas Venture Fund X, L.P. has told the SEC it owns more than 5% of 9 companies, latest first (Schedules 13D and 13G).
- Kymera TherapeuticsSCHEDULE 13G/A Feb 11, 2022 to Aug 13, 20262
- Obsidian Therapeutics, Inc.SCHEDULE 13G Aug 10, 20263
- Q32 Bio Inc.SCHEDULE 13D/A Apr 1, 2024 to May 28, 20264
- Generation Bio Co.SCHEDULE 13G/A Feb 11, 2022 to May 14, 20265
- Disc Medicine, Inc.SCHEDULE 13D/A Feb 14, 2023 to Dec 17, 20256
- ImageneBio, Inc.SCHEDULE 13D/A Feb 11, 2022 to Jul 29, 20257
- Tectonic Therapeutic, Inc.SC 13D/A Oct 28, 20248
- Magenta TherapeuticsSC 13D/A May 5, 2022 to Sep 15, 20239
- Replimune Group, Inc.SC 13D/A Sep 14, 2022 to Dec 6, 202210
Sources
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