| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Baker Bros Advisors LP | 10.89M (577.67%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 2 | Point72 Asset Management, L.P. | 3.69M (195.93%) | -862.83K Decreased by -23.37% | Mar 31, 25 |
| 3 | FCPM III SERVICES BV | 3.45M (183.21%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 4 | Paradigm Biocapital Advisors LP | 3.25M (172.30%) | -460.24K Decreased by -14.18% | Mar 31, 24 |
| 5 | Armistice Capital, LLC | 2.67M (141.80%) | 476.00K Increased by +17.81% | Mar 31, 25 |
| 6 | Westfield Capital Management Company, L.P. | 2.66M (141.02%) | 46.97K Increased by +1.77% | Mar 31, 25 |
| 7 | Westfield Capital Management Company, LP | 1.85M (98.23%) | 327.09K Increased by +17.67% | Sep 30, 24 |
| 8 | Siren, L.L.C. | 1.81M (96.20%) | -26.65K Decreased by -1.47% | Mar 31, 25 |
| 9 | T. Rowe Price Associates, Inc. | 1.54M (81.54%) | -48.54K Decreased by -3.16% | Mar 31, 25 |
| 10 | Long Focus Capital Management, LLC | 1.29M (68.66%) | 750.66K Increased by +58.02% | Mar 31, 25 |
| 11 | BRAIDWELL LP | 1.29M (68.45%) | 1.29M Increased by +100.00% | Sep 30, 23 |
| 12 | BNP Paribas Investment Partners SA | 1.22M (64.73%) | 64.04K Increased by +5.25% | Mar 31, 25 |
| 13 | Candriam Luxembourg S.C.A. | 1.21M (63.96%) | 117.33K Increased by +9.74% | Mar 31, 25 |
| 14 | RA Capital Management, LLC | 1.09M (58.03%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 15 | Fairmount Funds Management LLC | 1.07M (56.74%) | 1.07M Increased by +100.00% | Jun 30, 24 |
| 16 | Polar Capital Holdings PLC | 1.00M (53.22%) | -1.75K Decreased by -0.18% | Sep 30, 24 |
| 17 | Morgan Stanley - Brokerage Accounts | 999.84K (53.06%) | 137.70K Increased by +13.77% | Mar 31, 25 |
| 18 | First Light Asset Management, LLC | 967.01K (51.32%) | -417.76K Decreased by -43.20% | Sep 30, 24 |
| 19 | Camber Capital Management LLC | 915.00K (48.56%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 20 | Suvretta Capital Management, LLC | 914.48K (48.53%) | 0.00 Increased by 0.00% | Mar 31, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | T. Rowe Price Health Sciences | 1.17M (62.01%) | -17.65K Decreased by -1.51% | Mar 31, 25 |
| 2 | Harbor Small Cap Growth Instl | 1.00M (53.11%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 3 | Westfield Capital Mgt Co Sm-Cap Gr Eq | 1.00M (53.11%) | 14.32K Increased by +1.43% | Mar 31, 25 |
| 4 | Candriam Eqs L Biotech C USD Cap | 643.68K (34.16%) | -5.19K Decreased by -0.81% | Apr 30, 25 |
| 5 | BNP Paribas Health Cr Innovtr Cl Cap | 568.23K (30.16%) | -108.78K Decreased by -19.14% | Apr 30, 25 |
| 6 | Candriam Global Equities Oncology | 492.11K (26.12%) | 125.18K Increased by +25.44% | Sep 30, 24 |
| 7 | BNP Paribas US Small Cap Classic R | 477.48K (25.34%) | -69.83K Decreased by -14.63% | Apr 30, 25 |
| 8 | Janus Henderson Global Life Sciences | 385.75K (20.47%) | -89.69K Decreased by -23.25% | Sep 30, 23 |
| 9 | Janus Henderson Global Life Sciences D | 385.75K (20.47%) | -89.69K Decreased by -23.25% | Sep 30, 23 |
| 10 | Belfius Equities Cure C Cap | 367.15K (19.48%) | 0.00 Increased by 0.00% | May 31, 25 |
| 11 | MEDICAL BioHealth EUR Acc | 343.42K (18.22%) | -32.65K Decreased by -9.51% | Mar 31, 25 |
| 12 | Janus Selection Global Life Science AUSD | 298.27K (15.83%) | -76.67K Decreased by -25.71% | Sep 30, 23 |
| 13 | Polar Capital Biotech S Inc | 297.67K (15.80%) | -592.95K Decreased by -199.20% | Nov 30, 24 |
| 14 | Principal SmallCap R5 | 289.90K (15.38%) | -3.40K Decreased by -1.17% | May 31, 25 |
| 15 | Principal U.S. Small Cap Equity | 288.90K (15.33%) | 93.50K Increased by +32.36% | Mar 31, 25 |
| 16 | AXA Framlington Health R Inc | 279.70K (14.84%) | -8.49K Decreased by -3.03% | Nov 30, 23 |
| 17 | Platinum International Healthcare | 272.15K (14.44%) | -21.30K Decreased by -7.83% | Oct 31, 24 |
| 18 | UTM IM GBP AXA Framlington Biotech | 268.72K (14.26%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 19 | Fidelity Select Biotechnology | 266.35K (14.13%) | 0.00 Increased by 0.00% | Dec 31, 23 |
| 20 | Fidelity® Select Biotechnology | 266.35K (14.13%) | 0.00 Increased by 0.00% | Nov 30, 23 |