Private company

TCG Crossover GP II, LLC

American company, incorporated in Delaware. Summary from the record

Last updated Oct 21, 2026.

Overview

HeadquartersDE¹

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Corporate structure

TCG Crossover GP II, LLC sits at the top of its group. 29 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

TCG Crossover GP II, LLC DE
- ADC Therapeutics SA Stake · V8
- Alector (United States) Stake · South San Francisco, California
- Altimmune, Inc. Stake · Gaithersburg, Maryland, United States
- ALX ONCOLOGY HOLDINGS INC Stake · South San Francisco, California
- Amylyx Pharmaceuticals Stake · Cambridge
- Aura Investments Ltd. Stake · Tel Aviv
- Avalanche Biotechnologies Stake · Redwood City
- Avalo Therapeutics, Inc. Stake · Wayne, Pennsylvania
- Catabasis Pharmaceuticals Stake · Cambridge
- Century Therapeutics (United States) Stake · Philadelphia, Pennsylvania
- Cidara Therapeutics Stake · San Diego, California, United States
- EyePoint Pharmaceuticals Stake · Watertown, Massachusetts, United States
- First Tracks Biotherapeutics, Inc. Stake · San Diego, California, United States
- Fulcrum Therapeutics (United States) Stake · Cambridge, Massachusetts
- LB PHARMACEUTICALS INC Stake · New York, New York
- Magenta Therapeutics Stake · Cambridge, Massachusetts, United States
- Mineralys Therapeutics, Inc. Stake · Radnor, Pennsylvania
- Monte Rosa Therapeutics Stake · Boston, Massachusetts
- Nektar Therapeutics Stake · San Francisco, California, United States
- Perspective Therapeutics, Inc. Stake · Seattle, Washington
- RAPT Therapeutics, Inc. Stake · South San Francisco, California, United States
- Surrozen, Inc./DE Stake · South San Francisco, California
- Tango Therapeutics (United States) Stake · Boston, Massachusetts
- Tectonic Therapeutic, Inc. Stake · Watertown, Massachusetts
- Third Harmonic Bio, Inc. Stake · San Francisco, California
- and 3 more

Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (28 companies). Each entity in the chart links to its source.

Stakes it holds

TCG Crossover GP II, LLC has told the SEC it owns more than 5% of 28 companies, latest first (Schedules 13D and 13G).

ALX ONCOLOGY HOLDINGS INCSCHEDULE 13G/A Feb 6, 2026 to Aug 14, 2026²
First Tracks Biotherapeutics, Inc.SCHEDULE 13G Aug 14, 2026³
Fulcrum Therapeutics (United States)SCHEDULE 13G/A Sep 20, 2024 to Aug 14, 2026⁴
LB PHARMACEUTICALS INCSCHEDULE 13G/A Sep 18, 2025 to Aug 14, 2026⁵
Tango Therapeutics (United States)SCHEDULE 13G/A Nov 20, 2024 to Aug 14, 2026⁶
Surrozen, Inc./DESCHEDULE 13G/A Feb 2, 2026 to Jul 24, 2026⁷
Zai Lab LimitedSCHEDULE 13G Jun 11, 2026⁸
Monte Rosa TherapeuticsSCHEDULE 13G/A Oct 17, 2025 to May 15, 2026⁹
Vistagen Therapeutics, Inc.SCHEDULE 13G/A Oct 16, 2023 to May 15, 2026¹⁰
Aura Investments Ltd.SCHEDULE 13G May 12, 2026¹¹
Avalo Therapeutics, Inc.SCHEDULE 13G May 12, 2026¹²
Altimmune, Inc.SCHEDULE 13G May 1, 2026¹³
Vor Biopharma Inc.SCHEDULE 13G Apr 1, 2026¹⁴
Tectonic Therapeutic, Inc.SCHEDULE 13G Feb 27, 2026¹⁵
ADC Therapeutics SASCHEDULE 13G Feb 17, 2026¹⁶
Amylyx PharmaceuticalsSCHEDULE 13G/A Aug 26, 2024 to Feb 17, 2026¹⁷
EyePoint PharmaceuticalsSCHEDULE 13G/A Nov 7, 2024 to Feb 17, 2026¹⁸
Perspective Therapeutics, Inc.SCHEDULE 13G Feb 6, 2026¹⁹
Century Therapeutics (United States)SCHEDULE 13G Jan 15, 2026²⁰
Alector (United States)SCHEDULE 13G Nov 14, 2025²¹
Cidara TherapeuticsSCHEDULE 13G/A Dec 3, 2024 to Nov 14, 2025²²
Nektar TherapeuticsSCHEDULE 13G/A Mar 15, 2024 to Nov 14, 2025²³
Avalanche BiotechnologiesSCHEDULE 13G/A Feb 15, 2024 to May 15, 2025²⁴
Magenta TherapeuticsSCHEDULE 13G/A Nov 22, 2024 to May 15, 2025²⁵
RAPT Therapeutics, Inc.SCHEDULE 13G Jan 3, 2025²⁶
Catabasis PharmaceuticalsSC 13G/A Jan 16, 2024 to Nov 13, 2024²⁷
Mineralys Therapeutics, Inc.SC 13G/A Feb 15, 2024 to Nov 13, 2024²⁸
Third Harmonic Bio, Inc.SC 13G Sep 27, 2024²⁹

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARTCG Crossover GP II, LLC filings on SEC EDGAR
2
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on ALX ONCOLOGY HOLDINGS INC
3
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on First Tracks Biotherapeutics, Inc.
4
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Fulcrum Therapeutics (United States)
5
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on LB PHARMACEUTICALS INC
6
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Tango Therapeutics (United States)
7
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Surrozen, Inc./DE
8
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Zai Lab Limited
9
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Monte Rosa Therapeutics
10
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Vistagen Therapeutics, Inc.
11
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Aura Investments Ltd.
12
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Avalo Therapeutics, Inc.
13
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Altimmune, Inc.
14
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Vor Biopharma Inc.
15
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Tectonic Therapeutic, Inc.
16
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on ADC Therapeutics SA
17
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Amylyx Pharmaceuticals
18
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on EyePoint Pharmaceuticals
19
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Perspective Therapeutics, Inc.
20
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Century Therapeutics (United States)
21
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on Alector (United States)
22
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Cidara Therapeutics
23
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Nektar Therapeutics
24
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Avalanche Biotechnologies
25
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G/A on Magenta Therapeutics
26
SEC EDGARTCG Crossover GP II, LLC SCHEDULE 13G on RAPT Therapeutics, Inc.
27
SEC EDGARTCG Crossover GP II, LLC SC 13G/A on Catabasis Pharmaceuticals
28
SEC EDGARTCG Crossover GP II, LLC SC 13G/A on Mineralys Therapeutics, Inc.
29
SEC EDGARTCG Crossover GP II, LLC SC 13G on Third Harmonic Bio, Inc.