| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Baker Bros Advisors LP | 10.89M (577.67%) | 1.49M Increased by +13.65% | Dec 31, 24 |
| 2 | Paradigm Biocapital Advisors LP | 3.25M (172.30%) | -460.24K Decreased by -14.18% | Mar 31, 24 |
| 3 | Westfield Capital Management Company, L.P. | 2.61M (138.53%) | 759.39K Increased by +29.09% | Dec 31, 24 |
| 4 | FCPM III SERVICES BV | 2.34M (124.18%) | 217.07K Increased by +9.28% | Sep 30, 24 |
| 5 | RA Capital Management, LLC | 2.25M (119.56%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 6 | Armistice Capital, LLC | 1.96M (103.80%) | -16.00K Decreased by -0.82% | Sep 30, 24 |
| 7 | Jefferies Financial Group Inc | 1.95M (103.38%) | 0.00 Increased by 0.00% | Dec 31, 23 |
| 8 | Westfield Capital Management Company, LP | 1.85M (98.23%) | 327.09K Increased by +17.67% | Sep 30, 24 |
| 9 | T. Rowe Price Associates, Inc. | 1.72M (91.39%) | 923.54K Increased by +53.63% | Sep 30, 24 |
| 10 | Tybourne Capital Management (HK) Ltd | 1.39M (74.01%) | -115.18K Decreased by -8.26% | Sep 30, 24 |
| 11 | Morgan Stanley - Brokerage Accounts | 1.35M (71.64%) | -1.11M Decreased by -82.47% | Sep 30, 24 |
| 12 | BRAIDWELL LP | 1.29M (68.45%) | 1.29M Increased by +100.00% | Sep 30, 23 |
| 13 | Deep Track Capital, LP | 1.28M (67.72%) | -2.27M Decreased by -178.04% | Dec 31, 24 |
| 14 | Candriam Luxembourg S.C.A. | 1.09M (57.73%) | 37.28K Increased by +3.43% | Dec 31, 24 |
| 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 | First Light Asset Management, LLC | 967.01K (51.32%) | -417.76K Decreased by -43.20% | Sep 30, 24 |
| 18 | Camber Capital Management LLC | 915.00K (48.56%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 19 | Suvretta Capital Management, LLC | 914.48K (48.53%) | 0.00 Increased by 0.00% | Mar 31, 24 |
| 20 | HHG PLC | 910.93K (48.34%) | -370.39K Decreased by -40.66% | Sep 30, 23 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | T. Rowe Price Health Sciences | 1.20M (63.63%) | -113.57K Decreased by -9.47% | Dec 31, 24 |
| 2 | Harbor Small Cap Growth Instl | 986.50K (52.35%) | 118.00K Increased by +11.96% | Dec 31, 24 |
| 3 | Westfield Capital Mgt Co Sm-Cap Gr Eq | 986.50K (52.35%) | 139.03K Increased by +14.09% | Dec 31, 24 |
| 4 | BNP Paribas Health Cr Innovtr Cl Cap | 676.82K (35.92%) | 110.53K Increased by +16.33% | Dec 31, 24 |
| 5 | Belfius Equities Cure C Cap | 556.31K (29.52%) | 0.00 Increased by 0.00% | Jan 31, 25 |
| 6 | Candriam Eqs L Biotech C USD Cap | 531.53K (28.21%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 7 | Candriam Global Equities Oncology | 492.11K (26.12%) | 125.18K Increased by +25.44% | Sep 30, 24 |
| 8 | BNP Paribas US Small Cap Classic R | 477.45K (25.34%) | 111.32K Increased by +23.31% | Dec 31, 24 |
| 9 | Janus Henderson Global Life Sciences | 385.75K (20.47%) | -89.69K Decreased by -23.25% | Sep 30, 23 |
| 10 | Janus Henderson Global Life Sciences D | 385.75K (20.47%) | -89.69K Decreased by -23.25% | Sep 30, 23 |
| 11 | Janus Selection Global Life Science AUSD | 298.27K (15.83%) | -76.67K Decreased by -25.71% | Sep 30, 23 |
| 12 | Polar Capital Biotech S Inc | 297.67K (15.80%) | -592.95K Decreased by -199.20% | Nov 30, 24 |
| 13 | AXA Framlington Health R Inc | 279.70K (14.84%) | -8.49K Decreased by -3.03% | Nov 30, 23 |
| 14 | AXA Framlington Health Fund - R Income | 273.98K (14.54%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 15 | UTM IM GBP AXA Framlington Biotech | 268.72K (14.26%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 16 | Fidelity Select Biotechnology | 266.35K (14.13%) | 0.00 Increased by 0.00% | Dec 31, 23 |
| 17 | Fidelity® Select Biotechnology | 266.35K (14.13%) | 0.00 Increased by 0.00% | Nov 30, 23 |
| 18 | iShares Biotechnology ETF | 223.34K (11.85%) | -474.00 Decreased by -0.21% | Jan 31, 25 |
| 19 | MEDICAL BioHealth EUR Acc | 206.53K (10.96%) | 34.00K Increased by +16.46% | Oct 31, 24 |
| 20 | Handelsbanken Hälsovård Tema (A1 SEK) | 200.00K (10.61%) | 0.00 Increased by 0.00% | Jan 31, 25 |