| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 6.97M (12.60%) | 67.39K Increased by +0.97% | Mar 31, 25 |
| 2 | Wellington Management Company LLP | 4.72M (8.54%) | 1.22M Increased by +25.87% | Mar 31, 25 |
| 3 | COMMODORE CAPITAL LP | 4.47M (8.09%) | 598.66K Increased by +13.38% | Mar 31, 25 |
| 4 | RTW INVESTMENTS, LLC | 4.17M (7.54%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 5 | Paradigm Biocapital Advisors LP | 3.37M (6.10%) | 1.68M Increased by +49.85% | Mar 31, 25 |
| 6 | Deerfield Management Co | 3.17M (5.74%) | 201.14K Increased by +6.34% | Mar 31, 25 |
| 7 | venBio Select Advisor LLC | 3.00M (5.43%) | 875.00K Increased by +29.17% | Mar 31, 25 |
| 8 | Samlyn Capital, LLC | 2.38M (4.30%) | -288.75K Decreased by -12.14% | Mar 31, 25 |
| 9 | Franklin Resources Inc | 1.99M (3.60%) | 6.66K Increased by +0.33% | Mar 31, 25 |
| 10 | BRAIDWELL LP | 1.90M (3.44%) | 358.18K Increased by +18.84% | Sep 30, 23 |
| 11 | Boxer Capital LLC | 1.90M (3.44%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 12 | Boxer Capital Management, LLC | 1.90M (3.44%) | 1.90M Increased by +100.00% | Dec 31, 24 |
| 13 | Holocene Advisors, LP | 1.87M (3.39%) | -6.39K Decreased by -0.34% | Mar 31, 25 |
| 14 | Polar Capital Holdings PLC | 1.71M (3.09%) | 624.00 Increased by +0.04% | Mar 31, 25 |
| 15 | Logos Global Management LP | 1.70M (3.08%) | 1.70M Increased by +100.00% | Jun 30, 24 |
| 16 | BlackRock Inc | 1.69M (3.06%) | 104.71K Increased by +6.19% | Mar 31, 25 |
| 17 | Westfield Capital Management Company, L.P. | 1.50M (2.72%) | 508.06K Increased by +33.84% | Mar 31, 25 |
| 18 | Woodline Partners LP | 1.40M (2.53%) | 211.65K Increased by +15.12% | Mar 31, 25 |
| 19 | Morgan Stanley - Brokerage Accounts | 1.35M (2.44%) | -1.65M Decreased by -122.50% | Sep 30, 24 |
| 20 | Bvf Inc | 1.28M (2.31%) | 106.80K Increased by +8.35% | Jun 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Health Care Inv | 2.38M (4.30%) | 797.38K Increased by +33.53% | Mar 31, 25 |
| 2 | Fidelity Select Health Care | 1.19M (2.15%) | 87.10K Increased by +7.32% | Mar 31, 25 |
| 3 | Polar Capital Healthcare Opports Inc | 948.58K (1.72%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 4 | HBM Healthcare Investments AG Ord | 917.41K (1.66%) | 62.21K Increased by +6.78% | Mar 31, 25 |
| 5 | Franklin Biotechnology Discv A(acc)USD | 870.48K (1.57%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 6 | Fidelity Select Biotechnology | 856.75K (1.55%) | -18.20K Decreased by -2.12% | Mar 31, 25 |
| 7 | Strategic Advisers Fidelity US TtlStk | 741.45K (1.34%) | 26.91K Increased by +3.63% | Mar 31, 25 |
| 8 | Fidelity® Select Biotechnology | 730.45K (1.32%) | -63.80K Decreased by -8.73% | Nov 30, 23 |
| 9 | Federated Hermes Kaufmann Small Cap A | 707.29K (1.28%) | -234.20K Decreased by -33.11% | Mar 31, 25 |
| 10 | Federated Hermes Kaufmann Small Cap Grow | 707.29K (1.28%) | -234.20K Decreased by -33.11% | Mar 31, 25 |
| 11 | Fidelity Advisor Health Care I | 696.08K (1.26%) | 24.28K Increased by +3.49% | Mar 31, 25 |
| 12 | Federated Hermes Kaufmann Growth | 634.06K (1.15%) | -240.94K Decreased by -38.00% | Dec 31, 24 |
| 13 | Federated Hermes Kaufmann R | 634.06K (1.15%) | -240.94K Decreased by -38.00% | Dec 31, 24 |
| 14 | Lord Abbett Developing Growth A | 554.74K (1.00%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 15 | Fidelity Small Cap Growth | 550.82K (1.00%) | 0.00 Increased by 0.00% | Feb 28, 25 |
| 16 | Pictet-Biotech P USD | 545.29K (0.99%) | 8.68K Increased by +1.59% | Jan 31, 25 |
| 17 | Franklin Small Cap Growth Adv | 524.70K (0.95%) | -4.36K Decreased by -0.83% | Mar 31, 25 |
| 18 | Franklin US Small Cap Growth Equity | 524.70K (0.95%) | -4.36K Decreased by -0.83% | Mar 31, 25 |
| 19 | Franklin Biotechnology Discovery A | 499.70K (0.90%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 20 | Polar Capital Biotech S Inc | 450.00K (0.81%) | 0.00 Increased by 0.00% | Mar 31, 25 |