TRAX First Tracks Biotherapeutics, Inc.: institutional ownership and insider trading
150 funds reported holding $684M of First Tracks Biotherapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net bought $664M, with 149 new positions and 0 funds selling out; over the last 12 months insiders bought $0 and sold $66.7M on the open market.
Famous investors holding TRAX
- Ken Griffin (Citadel Advisors): $3.40M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $2.58M, 0.0% of the portfolio
Largest institutional holders of TRAX
- EcoR1 Capital, LLC — $63.9M
- TCG Crossover Management, LLC — $58.3M
- FMR LLC — $41.3M
- Affinity Asset Advisors, LLC — $40.9M
- BlackRock, Inc. (BLK) — $39.5M
- Trails Edge Capital Partners, LP — $30.5M
- STATE STREET CORP (STT, STT-PG) — $30.4M
- VANGUARD CAPITAL MANAGEMENT LLC — $29.2M
- Jupiter Topco LLC — $22.0M
- Vestal Point Capital, LP — $20.4M
Recent TRAX insider trades
- Sep 2, 2026: Ware J. Anthony sold 39,265 shares ($1.76M)
- Apr 20, 2026: EcoR1 Capital, LLC sold 4,705,575 shares ($65.0M)
5%+ owners
- EcoR1 Capital, LLC: 9.1% (Schedule 13G, filed Apr 22, 2026)
- Chen Yu: 8.3% (Schedule 13G, filed Aug 14, 2026)
- Sirenia Capital Management LP: 7.2% (Schedule 13G, filed Aug 14, 2026)
- FMR LLC: 5.9% (Schedule 13G, filed Aug 6, 2026)
- Affinity Asset Advisors, LLC: 5.8% (Schedule 13G, filed Aug 13, 2026)
- BlackRock, Inc.: 5.5% (Schedule 13G, filed Jul 28, 2026)