| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 4.37M (18.68%) | 24.36K Increased by +0.56% | Mar 31, 26 |
| 2 | BlackRock Inc | 3.94M (16.83%) | 2.64K Increased by +0.07% | Mar 31, 26 |
| 3 | venBio Select Advisor LLC | 2.89M (12.34%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 4 | Vanguard Group Inc | 2.78M (11.87%) | -13.36K Decreased by -0.48% | Dec 31, 25 |
| 5 | Vanguard Portfolio Management, LLC | 1.46M (6.22%) | 1.46M Increased by +100.00% | Mar 31, 26 |
| 6 | State Street Corp | 1.31M (5.61%) | -27.87K Decreased by -2.12% | Mar 31, 26 |
| 7 | Vanguard Capital Management, LLC | 1.17M (4.98%) | 1.17M Increased by +100.00% | Mar 31, 26 |
| 8 | Soleus Capital Management, L.P. | 1.15M (4.92%) | 212.03K Increased by +18.39% | Mar 31, 26 |
| 9 | State Street Corporation | 944.55K (4.03%) | -292.95K Decreased by -31.01% | Mar 31, 24 |
| 10 | Capital World Investors | 824.72K (3.52%) | 15.22K Increased by +1.85% | Mar 31, 26 |
| 11 | BRAIDWELL LP | 727.81K (3.11%) | 327.07K Increased by +44.94% | Jun 30, 25 |
| 12 | Point72 Asset Management, L.P. | 698.16K (2.98%) | 138.90K Increased by +19.89% | Sep 30, 23 |
| 13 | Redmile Group, LLC | 673.50K (2.88%) | -4.20K Decreased by -0.62% | Mar 31, 26 |
| 14 | Geode Capital Management, LLC | 643.98K (2.75%) | 32.10K Increased by +4.98% | Mar 31, 26 |
| 15 | Hood River Capital Management LLC | 619.59K (2.65%) | 6.28K Increased by +1.01% | Mar 31, 26 |
| 16 | Goldman Sachs Group Inc | 530.36K (2.26%) | 296.72K Increased by +55.95% | Jun 30, 25 |
| 17 | T. Rowe Price Associates, Inc. | 485.07K (2.07%) | -44.88K Decreased by -9.25% | Mar 31, 26 |
| 18 | Bellevue Group AG | 481.79K (2.06%) | 71.46K Increased by +14.83% | Mar 31, 26 |
| 19 | Frazier Life Sciences Management, L.P. | 481.31K (2.06%) | -7.15K Decreased by -1.49% | Mar 31, 26 |
| 20 | Dimensional Fund Advisors, Inc. | 468.99K (2.00%) | -23.98K Decreased by -5.11% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Fidelity® Select Biotechnology | 1.99M (8.48%) | 0.00 Increased by 0.00% | Nov 30, 23 |
| 2 | Fidelity Select Biotechnology | 1.80M (7.70%) | -3.90K Decreased by -0.22% | Apr 30, 26 |
| 3 | iShares Core S&P Small-Cap ETF | 1.57M (6.69%) | 540.00 Increased by +0.03% | May 29, 26 |
| 4 | Fidelity Growth Compy Commingled Pl S | 1.05M (4.48%) | 691.00 Increased by +0.07% | Apr 30, 26 |
| 5 | Fidelity Growth Compy Commingled Pl O | 915.43K (3.91%) | 0.00 Increased by 0.00% | Aug 31, 24 |
| 6 | Vanguard Total Stock Mkt Idx Inv | 837.32K (3.58%) | 6.41K Increased by +0.76% | Apr 30, 26 |
| 7 | Vanguard US Total Market Shares ETF | 824.72K (3.52%) | 704.00 Increased by +0.09% | Sep 30, 24 |
| 8 | Fidelity Growth Company Fund | 785.52K (3.35%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 9 | American Funds SMALLCAP World A | 752.24K (3.21%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 10 | Vanguard Small Cap Index | 606.14K (2.59%) | -1.23K Decreased by -0.20% | Apr 30, 26 |
| 11 | iShares Russell 2000 ETF | 592.60K (2.53%) | 5.46K Increased by +0.92% | May 29, 26 |
| 12 | SPDR® S&P Biotech ETF | 423.10K (1.81%) | 945.00 Increased by +0.22% | Aug 31, 25 |
| 13 | State Street® SPDR® S&P® Biotech ETF | 367.77K (1.57%) | -2.27K Decreased by -0.62% | May 31, 26 |
| 14 | Vanguard Small Cap Growth Index Inv | 339.81K (1.45%) | -248.00 Decreased by -0.07% | Apr 30, 26 |
| 15 | Hood River Small-Cap Growth Instl | 329.78K (1.41%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 16 | First Trust NYSE Arca Biotech ETF | 298.25K (1.27%) | -1.29K Decreased by -0.43% | May 31, 26 |
| 17 | Vanguard Institutional Extnd Mkt Idx Tr | 291.25K (1.24%) | 2.87K Increased by +0.99% | Apr 30, 26 |
| 18 | CS (Lux) Digital Health Equity SB USD | 290.00K (1.24%) | -40.00K Decreased by -13.79% | Mar 31, 24 |
| 19 | T. Rowe Price Health Sciences | 281.65K (1.20%) | -13.90K Decreased by -4.94% | Mar 31, 26 |
| 20 | Fidelity Small Cap Index | 243.00K (1.04%) | 427.00 Increased by +0.18% | Mar 31, 26 |