| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 6.97M (10.70%) | 67.39K Increased by +0.97% | Mar 31, 25 |
| 2 | Wellington Management Company LLP | 4.72M (7.25%) | 1.22M Increased by +25.87% | Mar 31, 25 |
| 3 | COMMODORE CAPITAL LP | 4.47M (6.87%) | 598.66K Increased by +13.38% | Mar 31, 25 |
| 4 | RTW INVESTMENTS, LLC | 4.17M (6.41%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 5 | Paradigm Biocapital Advisors LP | 3.37M (5.18%) | 1.68M Increased by +49.85% | Mar 31, 25 |
| 6 | Deerfield Management Co | 3.17M (4.88%) | 201.14K Increased by +6.34% | Mar 31, 25 |
| 7 | venBio Select Advisor LLC | 3.00M (4.61%) | 875.00K Increased by +29.17% | Mar 31, 25 |
| 8 | Samlyn Capital, LLC | 2.38M (3.66%) | -288.75K Decreased by -12.14% | Mar 31, 25 |
| 9 | Franklin Resources Inc | 1.99M (3.06%) | 6.66K Increased by +0.33% | Mar 31, 25 |
| 10 | BRAIDWELL LP | 1.90M (2.92%) | 358.18K Increased by +18.84% | Sep 30, 23 |
| 11 | Boxer Capital LLC | 1.90M (2.92%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 12 | Boxer Capital Management, LLC | 1.90M (2.92%) | 1.90M Increased by +100.00% | Dec 31, 24 |
| 13 | Holocene Advisors, LP | 1.87M (2.88%) | -6.39K Decreased by -0.34% | Mar 31, 25 |
| 14 | Polar Capital Holdings PLC | 1.71M (2.62%) | 624.00 Increased by +0.04% | Mar 31, 25 |
| 15 | Logos Global Management LP | 1.70M (2.61%) | 1.70M Increased by +100.00% | Jun 30, 24 |
| 16 | BlackRock Inc | 1.69M (2.60%) | 104.71K Increased by +6.19% | Mar 31, 25 |
| 17 | Westfield Capital Management Company, L.P. | 1.50M (2.31%) | 508.06K Increased by +33.84% | Mar 31, 25 |
| 18 | Woodline Partners LP | 1.40M (2.15%) | 211.65K Increased by +15.12% | Mar 31, 25 |
| 19 | Morgan Stanley - Brokerage Accounts | 1.35M (2.07%) | -1.65M Decreased by -122.50% | Sep 30, 24 |
| 20 | Bvf Inc | 1.28M (1.97%) | 106.80K Increased by +8.35% | Jun 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Health Care Inv | 1.69M (2.60%) | -687.83K Decreased by -40.69% | Jun 30, 25 |
| 2 | Fidelity Select Health Care | 1.20M (1.84%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 3 | HBM Healthcare Investments AG Ord | 1.00M (1.54%) | 82.59K Increased by +8.26% | Jun 30, 25 |
| 4 | Polar Capital Healthcare Opports Inc | 948.58K (1.46%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 5 | Federated Hermes Kaufmann Small Cap A | 825.00K (1.27%) | 117.71K Increased by +14.27% | Jun 30, 25 |
| 6 | Strategic Advisers Fidelity US TtlStk | 798.29K (1.23%) | 74.90K Increased by +9.38% | Jun 30, 25 |
| 7 | Franklin Biotechnology Discv A(acc)USD | 783.58K (1.20%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 8 | Fidelity® Select Biotechnology | 730.45K (1.12%) | -63.80K Decreased by -8.73% | Nov 30, 23 |
| 9 | Fidelity Select Biotechnology | 708.85K (1.09%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 10 | Federated Hermes Kaufmann Small Cap Grow | 707.29K (1.09%) | -234.20K Decreased by -33.11% | Mar 31, 25 |
| 11 | Fidelity Advisor Health Care I | 690.00K (1.06%) | -10.00K Decreased by -1.45% | Jun 30, 25 |
| 12 | Federated Hermes Kaufmann R | 684.50K (1.05%) | 356.50K Increased by +52.08% | Jun 30, 25 |
| 13 | Federated Hermes Kaufmann Growth | 634.06K (0.97%) | -240.94K Decreased by -38.00% | Dec 31, 24 |
| 14 | T. Rowe Price New Horizons | 592.27K (0.91%) | 113.69K Increased by +19.20% | Jun 30, 25 |
| 15 | US Small-Cap Growth II Equity Comp | 592.27K (0.91%) | 227.79K Increased by +38.46% | Jun 30, 25 |
| 16 | Pictet-Biotech P USD | 582.63K (0.90%) | 61.26K Increased by +10.52% | May 31, 25 |
| 17 | Franklin Small Cap Growth SMA | 565.58K (0.87%) | 565.54K Increased by +99.99% | Jun 30, 25 |
| 18 | Franklin US Small Cap Growth Equity | 565.58K (0.87%) | 40.88K Increased by +7.23% | Jun 30, 25 |
| 19 | Lord Abbett Developing Growth A | 554.74K (0.85%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 20 | Fidelity Small Cap Growth | 550.82K (0.85%) | 0.00 Increased by 0.00% | May 31, 25 |