| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Bvf Inc | 16.00M (36.74%) | -3.75M Decreased by -23.44% | Mar 31, 26 |
| 2 | Deep Track Capital, LP | 6.41M (14.72%) | 1.80M Increased by +28.07% | Mar 31, 26 |
| 3 | FMR Inc | 5.73M (13.16%) | -596.47K Decreased by -10.41% | Jun 30, 25 |
| 4 | Cormorant Asset Management, LLC | 4.48M (10.29%) | 125.00K Increased by +2.79% | Mar 31, 26 |
| 5 | HHG PLC | 3.45M (7.93%) | 1.36M Increased by +39.28% | Mar 31, 26 |
| 6 | D. E. Shaw & Co LP | 2.39M (5.49%) | -90.11K Decreased by -3.77% | Mar 31, 26 |
| 7 | venBio Select Advisor LLC | 2.00M (4.59%) | -2.15M Decreased by -107.50% | Sep 30, 25 |
| 8 | MPM Oncology Impact Management LP | 1.81M (4.16%) | 1.81M Increased by +100.00% | Mar 31, 26 |
| 9 | Weiss Asset Management LP | 1.71M (3.92%) | 1.38M Increased by +80.51% | Mar 31, 26 |
| 10 | Jane Street Group LLC | 1.68M (3.86%) | 1.66M Increased by +98.69% | Dec 31, 25 |
| 11 | Holocene Advisors, LP | 1.59M (3.64%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 12 | Logos Global Management LP | 1.50M (3.44%) | -250.00K Decreased by -16.67% | Mar 31, 26 |
| 13 | Point72 Asset Management, L.P. | 1.37M (3.14%) | 596.02K Increased by +43.55% | Mar 31, 26 |
| 14 | Citadel Advisors Llc | 1.32M (3.04%) | 942.84K Increased by +71.23% | Mar 31, 26 |
| 15 | T. Rowe Price Associates, Inc. | 1.29M (2.97%) | 335.31K Increased by +25.90% | Mar 31, 26 |
| 16 | Goldman Sachs Group Inc | 1.28M (2.93%) | -17.04K Decreased by -1.34% | Jun 30, 25 |
| 17 | Westfield Capital Management Company, L.P. | 1.26M (2.89%) | -175.39K Decreased by -13.93% | Jun 30, 25 |
| 18 | Federated Hermes Inc | 1.25M (2.87%) | -20.78K Decreased by -1.66% | Jun 30, 25 |
| 19 | Westfield Capital Management Company, LP | 1.17M (2.68%) | 49.73K Increased by +4.26% | Sep 30, 24 |
| 20 | AllianceBernstein L.P. | 1.14M (2.61%) | 171.93K Increased by +15.11% | Jun 30, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Jupiter Merian Glb Eq AbsRet I USD Acc | 1.18M (2.71%) | 1.18M Increased by +100.00% | Dec 31, 25 |
| 2 | Polar Capital Biotech S Inc | 1.00M (2.30%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 3 | Fidelity Growth Compy Commingled Pl S | 981.02K (2.25%) | 273.63K Increased by +27.89% | Jul 31, 25 |
| 4 | T. Rowe Price Health Sciences | 939.23K (2.16%) | -61.80K Decreased by -6.58% | Apr 30, 26 |
| 5 | Fidelity Growth Company Fund | 740.92K (1.70%) | 248.13K Increased by +33.49% | Jul 31, 25 |
| 6 | Federated Hermes Kaufmann Growth | 665.00K (1.53%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 7 | Federated Hermes Kaufmann R | 665.00K (1.53%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 8 | Janus Henderson Hrzn Biotec E2 USD | 565.45K (1.30%) | 565.45K Increased by +100.00% | Mar 31, 26 |
| 9 | US Small-Cap Growth II Equity Comp | 523.89K (1.20%) | -134.19K Decreased by -25.62% | Jun 30, 25 |
| 10 | Fidelity Select Health Care | 520.00K (1.19%) | -150.00K Decreased by -28.85% | Jul 31, 25 |
| 11 | Federated Hermes Kaufmann Small Cap A | 503.00K (1.16%) | -16.00K Decreased by -3.18% | Jun 30, 25 |
| 12 | Federated Hermes Kaufmann Small Cap Grow | 503.00K (1.16%) | -16.00K Decreased by -3.18% | Jun 30, 25 |
| 13 | Fidelity Contrafund | 494.78K (1.14%) | -454.00 Decreased by -0.09% | Mar 31, 24 |
| 14 | Fidelity® Contrafund® | 493.74K (1.13%) | 80.19K Increased by +16.24% | Oct 31, 23 |
| 15 | Fidelity Growth Compy Commingled Pl O | 442.87K (1.02%) | 0.00 Increased by 0.00% | Aug 31, 24 |
| 16 | apo Medical Opportunities R | 428.89K (0.98%) | 95.00K Increased by +22.15% | Dec 31, 25 |
| 17 | T. Rowe Price Small-Cap Stock | 421.42K (0.97%) | 31.52K Increased by +7.48% | Mar 31, 24 |
| 18 | T. Rowe Price US Small-Cap Core Equity | 421.42K (0.97%) | 31.52K Increased by +7.48% | Mar 31, 24 |
| 19 | Pictet-Biotech P USD | 406.15K (0.93%) | -58.93K Decreased by -14.51% | Jul 31, 23 |
| 20 | Fidelity® Blue Chip Growth | 396.52K (0.91%) | -679.00 Decreased by -0.17% | Oct 31, 23 |