| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 15.00M (17.73%) | 608.65K Increased by +4.06% | Jun 30, 25 |
| 2 | RA Capital Management, LLC | 9.70M (11.46%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 3 | BlackRock Inc | 8.28M (9.79%) | -857.04K Decreased by -10.35% | Mar 31, 25 |
| 4 | Vanguard Group Inc | 5.99M (7.08%) | -65.34K Decreased by -1.09% | Jun 30, 25 |
| 5 | T. Rowe Price Associates, Inc. | 4.88M (5.76%) | 4.20M Increased by +86.13% | Jun 30, 25 |
| 6 | Deep Track Capital, LP | 4.63M (5.48%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 7 | EcoR1 Capital, LLC | 4.06M (4.80%) | 0.00 Increased by 0.00% | Mar 31, 24 |
| 8 | State Street Corporation | 3.92M (4.63%) | 797.64K Increased by +20.37% | Mar 31, 24 |
| 9 | Merck & Co Inc | 3.55M (4.19%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 10 | BRAIDWELL LP | 2.16M (2.55%) | -222.46K Decreased by -10.31% | Sep 30, 24 |
| 11 | Eversept Partners, LLC | 1.99M (2.35%) | 1.37M Increased by +68.91% | Jun 30, 25 |
| 12 | Geode Capital Management, LLC | 1.96M (2.32%) | 47.85K Increased by +2.44% | Mar 31, 25 |
| 13 | ADAR1 Capital Management LLC | 1.72M (2.04%) | 1.34M Increased by +77.93% | Jun 30, 25 |
| 14 | State Street Corp | 1.64M (1.94%) | -209.03K Decreased by -12.74% | Mar 31, 25 |
| 15 | JPMorgan Chase & Co | 1.49M (1.76%) | -156.42K Decreased by -10.53% | Mar 31, 25 |
| 16 | Acadian Asset Management LLC | 1.44M (1.70%) | 1.38M Increased by +96.10% | Mar 31, 25 |
| 17 | Jacobs Levy Equity Management, Inc. | 1.32M (1.56%) | -11.15K Decreased by -0.84% | Jun 30, 25 |
| 18 | Euclidean Capital LLC | 1.31M (1.55%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 19 | Verition Fund Managegment, LLC | 1.25M (1.48%) | 1.11M Increased by +88.31% | Mar 31, 24 |
| 20 | Soleus Capital Management, L.P. | 1.21M (1.43%) | -1.03M Decreased by -85.44% | Sep 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Fidelity Growth Compy Commingled Pl S | 5.38M (6.36%) | 7.10K Increased by +0.13% | Jul 31, 25 |
| 2 | Fidelity Growth Compy Commingled Pl O | 5.02M (5.94%) | 13.10K Increased by +0.26% | Aug 31, 24 |
| 3 | Fidelity Growth Company Fund | 3.70M (4.38%) | -22.17K Decreased by -0.60% | Jul 31, 25 |
| 4 | Fidelity Select Biotechnology | 3.59M (4.25%) | 0.00 Increased by 0.00% | Jul 31, 25 |
| 5 | Fidelity® Select Biotechnology | 3.38M (4.00%) | 3.00K Increased by +0.09% | Nov 30, 23 |
| 6 | T. Rowe Price Health Sciences | 3.13M (3.70%) | -661.48K Decreased by -21.12% | Jul 31, 25 |
| 7 | Fidelity® Growth Company | 3.10M (3.67%) | 12.30K Increased by +0.40% | Nov 30, 23 |
| 8 | Vanguard Total Stock Mkt Idx Inv | 2.42M (2.86%) | -53.33K Decreased by -2.21% | Jul 31, 25 |
| 9 | Vanguard US Total Market Shares ETF | 2.37M (2.80%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 10 | iShares Russell 2000 ETF | 1.90M (2.25%) | -21.23K Decreased by -1.12% | Aug 29, 25 |
| 11 | JPMorgan Small Cap Growth A | 1.51M (1.78%) | 605.20K Increased by +40.17% | Sep 30, 24 |
| 12 | Fidelity Growth Company K6 | 1.27M (1.50%) | 15.32K Increased by +1.21% | Jul 31, 25 |
| 13 | Xtrackers S&P 500 Swap ETF 1C | 1.20M (1.42%) | 1.09M Increased by +90.68% | Jun 30, 24 |
| 14 | Fidelity® Growth Company K6 | 1.17M (1.38%) | -16.86K Decreased by -1.44% | Nov 30, 23 |
| 15 | Fidelity Series Growth Company | 999.46K (1.18%) | 0.00 Increased by 0.00% | Jul 31, 25 |
| 16 | Vanguard Institutional Extnd Mkt Idx Tr | 869.37K (1.03%) | -292.93K Decreased by -33.69% | Jul 31, 25 |
| 17 | Vanguard Small Cap Index | 810.62K (0.96%) | 2.51K Increased by +0.31% | Nov 30, 23 |
| 18 | Fidelity Small Cap Index | 809.98K (0.96%) | -31.99K Decreased by -3.95% | Jun 30, 25 |
| 19 | SPDR® S&P Biotech ETF | 797.27K (0.94%) | -24.21K Decreased by -3.04% | Nov 27, 24 |
| 20 | Fidelity® Series Growth Company | 782.36K (0.93%) | 3.90K Increased by +0.50% | Nov 30, 23 |