First Tracks Biotherapeutics (TRAX) Ownership
TRAX ownership summary
as of October 18, 2026- Institutions
- 100.6% of shares outstanding
- Insiders
- 8.70% of shares outstanding
- Shares outstanding
- 35.7M
- Float
- 26.2M shares available to trade
- Short interest
- — 5.2M shares short
- Days to cover
- 7.05 short interest up 15.3% vs prior month
- Institutions 100.63%
- Insiders 8.70%
TRAX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | EcoR1 Capital, LLC | 8.88% | 3.2M | $109.4M | +3.2M (0.0%) | June 30, 2026 |
| 2 | TCG Crossover Management, LLC | 8.10% | 2.9M | $99.8M | +2.9M (0.0%) | June 30, 2026 |
| 3 | FMR Inc | 5.75% | 2.1M | $70.8M | +1.6M (+334.5%) | June 30, 2026 |
| 4 | Affinity Asset Advisors, LLC | 5.69% | 2.0M | $70.0M | +2.0M (0.0%) | June 30, 2026 |
| 5 | BlackRock Inc | 5.50% | 2.0M | $67.7M | +2.0M (0.0%) | June 30, 2026 |
| 6 | Trails Edge Capital Partners, LP | 4.24% | 1.5M | $52.2M | +1.5M (0.0%) | June 30, 2026 |
| 7 | State Street Corp | 4.23% | 1.5M | $52.1M | +1.5M (0.0%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 4.06% | 1.5M | $50.0M | +1.5M (0.0%) | June 30, 2026 |
| 9 | Jupiter Topco LLC | 3.05% | 1.1M | $37.6M | +1.1M (0.0%) | June 30, 2026 |
| 10 | Vestal Point Capital LP | 2.84% | 1.0M | $34.9M | +1.0M (0.0%) | June 30, 2026 |
| 11 | Woodline Partners LP | 2.57% | 917K | $31.6M | +917,176 (0.0%) | June 30, 2026 |
| 12 | Sanofi | 2.30% | 822K | $28.3M | +821,917 (0.0%) | June 30, 2026 |
| 13 | Morgan Stanley - Brokerage Accounts | 2.19% | 782K | $26.9M | +781,534 (0.0%) | June 30, 2026 |
| 14 | Adage Capital Partners Gp LLC | 2.04% | 729K | $25.1M | +729,000 (0.0%) | June 30, 2026 |
| 15 | Balyasny Asset Management LLC | 2.00% | 715K | $24.6M | +710,043 (+14,475.9%) | June 30, 2026 |
| 16 | Geode Capital Management, LLC | 1.96% | 702K | $24.2M | +702,087 (0.0%) | June 30, 2026 |
| 17 | Bank of America Corp | 1.81% | 648K | $22.3M | +647,962 (0.0%) | June 30, 2026 |
| 18 | StemPoint Capital LP | 1.74% | 623K | $21.5M | +622,723 (0.0%) | June 30, 2026 |
| 19 | Palo Alto Investors, LLC | 1.69% | 603K | $20.8M | +603,489 (0.0%) | June 30, 2026 |
| 20 | Sofinnova Ventures | 1.58% | 565K | $19.5M | +565,199 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 20 holders added 25.3M shares and 0 cut 0.
TRAX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.11% | 1.1M | $38.3M | — | August 31, 2026 |
| 2 | State Street® SPDR® S&P® Biotech ETF | 2.46% | 880K | $30.3M | −16,800 (−1.9%) | September 30, 2026 |
| 3 | iShares Russell 2000 ETF | 2.42% | 865K | $29.8M | −9,984 (−1.1%) | September 30, 2026 |
| 4 | Fidelity Select Health Care | 1.12% | 400K | $13.8M | — | August 31, 2026 |
| 5 | Federated Hermes Kaufmann Small Cap A | 0.81% | 290K | $10.0M | +290,000 (0.0%) | June 30, 2026 |
| 6 | Invesco Main Street Small Cap R6 | 0.72% | 258K | $8.9M | +62,172 (+31.8%) | August 31, 2026 |
| 7 | Fidelity Small Cap Index | 0.71% | 255K | $8.8M | +2,781 (+1.1%) | July 31, 2026 |
| 8 | iShares Russell 2000 Growth ETF | 0.61% | 219K | $7.5M | −277 (−0.1%) | September 30, 2026 |
| 9 | Fidelity Advisor Biotechnology I | 0.61% | 218K | $7.5M | −123,400 (−36.2%) | August 31, 2026 |
| 10 | Fidelity Advisor Health Care I | 0.56% | 200K | $6.9M | — | August 31, 2026 |
| 11 | Victory Science & Technology | 0.53% | 188K | $6.5M | +187,893 (0.0%) | June 30, 2026 |
| 12 | Schwab US Small-Cap ETF™ | 0.45% | 161K | $5.6M | +108 (+0.1%) | September 30, 2026 |
| 13 | Vanguard Strategic Equity Inv | 0.43% | 153K | $5.3M | −17,584 (−10.3%) | June 30, 2026 |
| 14 | Fidelity Series Small Cap Core | 0.43% | 153K | $5.3M | −64,000 (−29.5%) | July 31, 2026 |
| 15 | Invesco V.I. Main Street Small Cap I | 0.38% | 137K | $4.7M | +31,986 (+30.5%) | August 31, 2026 |
| 16 | Vanguard Russell 2000 ETF | 0.38% | 134K | $4.6M | +3,174 (+2.4%) | August 31, 2026 |
| 17 | Fidelity Extended Market Index | 0.37% | 131K | $4.5M | −1,955 (−1.5%) | August 31, 2026 |
| 18 | DWS ESG Biotech LC | 0.36% | 129K | $4.4M | +923 (+0.7%) | August 31, 2026 |
| 19 | iShares Micro-Cap ETF | 0.30% | 106K | $3.6M | −729 (−0.7%) | September 30, 2026 |
| 20 | Vanguard Explorer Inv | 0.28% | 98K | $3.4M | +98,262 (0.0%) | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns TRAX
Institutional investors own 100.6% of First Tracks Biotherapeutics's shares and insiders 8.70%. The largest holder is EcoR1 Capital, LLC with 8.88% of the shares (3.2M), as of June 30, 2026. Among the top 20 institutions, 20 added shares and 0 reduced their stake in the latest filings.
Related: TRAX analyst forecast, TRAX key metrics. See the TRAX stock overview for the latest quote and news.
TRAX ownership FAQ
Who owns the most First Tracks Biotherapeutics stock?
The largest shareholders of First Tracks Biotherapeutics are EcoR1 Capital, LLC (8.88%), TCG Crossover Management, LLC (8.10%), FMR Inc (5.75%), Affinity Asset Advisors, LLC (5.69%), BlackRock Inc (5.50%).
What percentage of First Tracks Biotherapeutics is owned by institutions?
Institutions hold 100.6% of First Tracks Biotherapeutics's shares outstanding; insiders hold 8.70%.
Which funds own First Tracks Biotherapeutics?
The largest fund holders of First Tracks Biotherapeutics are Vanguard MStar Total Stk Mkt Idx Invest (3.11%), State Street® SPDR® S&P® Biotech ETF (2.46%), iShares Russell 2000 ETF (2.42%), Fidelity Select Health Care (1.12%), Federated Hermes Kaufmann Small Cap A (0.81%).
How many shares of First Tracks Biotherapeutics are outstanding?
First Tracks Biotherapeutics has 35.7M shares outstanding, of which 26.2M are in the public float.