First Tracks Biotherapeutics
TRAX · NASDAQ
$41.25+$4.97 (+13.70%)TodayMarket closed ·
Prev close $36.28
Who owns TRAX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 53.6% of TRAX’s shares.
- EcoR1 Capital, LLC9.1%
- TCG Crossover Management, LLC8.3%
- Sirenia Capital Management LP7.2%
- Affinity Asset Advisors LLC5.8%
- Next 6 largest institutions23.2%
- All other shareholders46.4%
| Holder | Shares | % of shares |
|---|---|---|
| EcoR1 Capital, LLC | 3.17M | 9.10% |
| TCG Crossover Management, LLC | 2.90M | 8.30% |
| Sirenia Capital Management LP | 2.50M | 7.15% |
| Affinity Asset Advisors LLC | 2.03M | 5.82% |
| BlackRock Institutional Trust Company, N.A. | 1.75M | 5.01% |
| Trails Edge Capital Partners LP | 1.51M | 4.34% |
| Vanguard Capital Management, LLC | 1.45M | 4.16% |
| Fidelity Management & Research Company LLC | 1.25M | 3.58% |
| Janus Henderson Investors | 1.09M | 3.13% |
| State Street Investment Management (US) | 1.05M | 3.00% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.11M | 3.19% |
| State Street SPDR S&P Biotech ETF | 981.79K | 2.81% |
| iShares Russell 2000 ETF | 605.34K | 1.73% |
| Fidelity Select Health Care Portfolio | 400.00K | 1.15% |
| Fidelity Advisor Biotechnology Fund | 341.15K | 0.98% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $66.76M (2 trades) of TRAX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Orwin John A | Option exercise | 1.30K | — |
| Orwin John A | Option exercise | 1.30K | — |
| Ware J. Anthony | Option exercise | 10.69K | — |
| Ware J. Anthony | Option exercise | 28.57K | — |
| Ware J. Anthony | Sale | 39.27K | $1.76M |
| Ware J. Anthony | Option exercise | 39.27K | $225.38K |
| STONE BENJAMIN | Award | 60.49K | — |
| Lizzul Paul F. | Award | 60.49K | — |
| Faga Daniel | Award | 193.57K | — |
| STONE BENJAMIN | Award | 60.49K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.19M
- Days to cover
- 6.19
- % of shares outstanding
- 14.88%
- Average daily volume
- 837.99K
- Change since last report
- +15.3%
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