| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Deerfield Management Co | 17.99M (43.42%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 2 | FMR Inc | 9.94M (23.98%) | 282.87K Increased by +2.85% | Mar 31, 25 |
| 3 | Paradigm Biocapital Advisors LP | 5.27M (12.72%) | -93.95K Decreased by -1.78% | Mar 31, 25 |
| 4 | Vanguard Group Inc | 4.44M (10.72%) | -60.03K Decreased by -1.35% | Mar 31, 25 |
| 5 | BlackRock Inc | 3.75M (9.05%) | -103.22K Decreased by -2.75% | Mar 31, 25 |
| 6 | COMMODORE CAPITAL LP | 1.85M (4.48%) | 233.40K Increased by +12.58% | Mar 31, 25 |
| 7 | State Street Corporation | 1.70M (4.11%) | 440.77K Increased by +25.91% | Dec 31, 23 |
| 8 | Perceptive Advisors LLC | 1.63M (3.94%) | -986.01K Decreased by -60.34% | Mar 31, 25 |
| 9 | T. Rowe Price Associates, Inc. | 1.45M (3.50%) | 152.69K Increased by +10.53% | Mar 31, 25 |
| 10 | Bain Capital Life Sciences Investors, LLC | 1.45M (3.49%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 11 | Wellington Management Company LLP | 1.44M (3.48%) | 157.81K Increased by +10.94% | Mar 31, 25 |
| 12 | State Street Corp | 1.43M (3.45%) | -59.02K Decreased by -4.13% | Mar 31, 25 |
| 13 | HHG PLC | 1.31M (3.16%) | 1.29M Increased by +98.73% | Mar 31, 25 |
| 14 | Woodline Partners LP | 1.21M (2.91%) | 604.00 Increased by +0.05% | Mar 31, 25 |
| 15 | Boxer Capital LLC | 1.12M (2.70%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 16 | Boxer Capital Management, LLC | 1.12M (2.70%) | 1.12M Increased by +100.00% | Dec 31, 24 |
| 17 | Vestal Point Capital LP | 1.07M (2.59%) | 475.00K Increased by +44.19% | Mar 31, 25 |
| 18 | Polar Capital Holdings PLC | 946.72K (2.29%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 19 | Geode Capital Management, LLC | 893.46K (2.16%) | 21.97K Increased by +2.46% | Mar 31, 25 |
| 20 | BRAIDWELL LP | 840.95K (2.03%) | 599.71K Increased by +71.31% | Mar 31, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Fidelity Growth Compy Commingled Pl O | 2.48M (5.97%) | 0.00 Increased by 0.00% | Mar 31, 24 |
| 2 | Fidelity Growth Compy Commingled Pl S | 2.44M (5.88%) | 2.32K Increased by +0.10% | Jun 30, 25 |
| 3 | Fidelity Growth Company Fund | 1.73M (4.16%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 4 | Fidelity® Growth Company | 1.60M (3.87%) | 36.30K Increased by +2.27% | Nov 30, 23 |
| 5 | Vanguard Total Stock Mkt Idx Inv | 1.50M (3.61%) | 7.11K Increased by +0.48% | Jun 30, 25 |
| 6 | Vanguard Small Cap Index | 1.14M (2.74%) | -33.18K Decreased by -2.92% | Jun 30, 25 |
| 7 | iShares Russell 2000 ETF | 1.03M (2.49%) | -16.74K Decreased by -1.62% | Jul 30, 25 |
| 8 | Vanguard Small Cap Value Index Inv | 724.38K (1.75%) | -26.62K Decreased by -3.67% | Jun 30, 25 |
| 9 | Fidelity Select Health Care | 700.00K (1.69%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 10 | Fidelity® Growth Company K6 | 617.41K (1.49%) | 540.00 Increased by +0.09% | Nov 30, 23 |
| 11 | Vanguard Institutional Extnd Mkt Idx Tr | 593.56K (1.43%) | 2.17K Increased by +0.37% | Jun 30, 25 |
| 12 | SPDR® S&P Biotech ETF | 587.43K (1.42%) | 14.46K Increased by +2.46% | Jul 31, 25 |
| 13 | Fidelity® Small Cap Growth | 549.27K (1.33%) | -667.00 Decreased by -0.12% | Oct 31, 23 |
| 14 | Vanguard Health Care Inv | 534.47K (1.29%) | 144.97K Increased by +27.12% | Jun 30, 25 |
| 15 | Fidelity Growth Company K6 | 518.28K (1.25%) | -2.32K Decreased by -0.45% | Jun 30, 25 |
| 16 | T. Rowe Price New Horizons | 516.87K (1.25%) | 36.82K Increased by +7.12% | Jun 30, 25 |
| 17 | US Small-Cap Growth II Equity Comp | 516.87K (1.25%) | 47.62K Increased by +9.21% | Jun 30, 25 |
| 18 | Fidelity Small Cap Growth | 512.71K (1.24%) | 0.00 Increased by 0.00% | May 31, 25 |
| 19 | T. Rowe Price Small-Cap Stock | 490.46K (1.18%) | -575.00 Decreased by -0.12% | Jun 30, 25 |
| 20 | T. Rowe Price US Small-Cap Core Equity | 490.46K (1.18%) | 490.46K Increased by +100.00% | Jun 30, 25 |