| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Cormorant Asset Management, LLC | 2.34M (16.37%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 2 | Orbimed Advisors, LLC | 1.74M (12.13%) | 140.00K Increased by +8.06% | Mar 31, 26 |
| 3 | Aberdeen Group PLC | 1.32M (9.23%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 4 | Octagon Capital Advisors LP | 955.00K (6.67%) | -160.00K Decreased by -16.75% | Dec 31, 25 |
| 5 | Vanguard Group Inc | 859.41K (6.00%) | 247.38K Increased by +28.78% | Dec 31, 25 |
| 6 | Vanguard Capital Management, LLC | 734.11K (5.12%) | 734.11K Increased by +100.00% | Mar 31, 26 |
| 7 | Citadel Advisors Llc | 727.06K (5.08%) | -116.13K Decreased by -15.97% | Mar 31, 26 |
| 8 | Prosight Management, LP | 697.11K (4.87%) | 13.24K Increased by +1.90% | Mar 31, 26 |
| 9 | Adage Capital Partners Gp LLC | 528.94K (3.69%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 10 | Diadema Partners LP | 439.96K (3.07%) | 439.96K Increased by +100.00% | Mar 31, 26 |
| 11 | Altium Capital Management, LP | 385.00K (2.69%) | 190.00K Increased by +49.35% | Dec 31, 24 |
| 12 | Stonepine Capital Management Llc | 383.46K (2.68%) | -6.45K Decreased by -1.68% | Mar 31, 26 |
| 13 | Armistice Capital, LLC | 364.00K (2.54%) | -172.00K Decreased by -47.25% | Mar 31, 26 |
| 14 | Renaissance Technologies Corp | 347.00K (2.42%) | -7.30K Decreased by -2.10% | Mar 31, 26 |
| 15 | Susquehanna International Group, LLP | 333.42K (2.33%) | 105.59K Increased by +31.67% | Mar 31, 26 |
| 16 | ADAR1 Capital Management LLC | 331.78K (2.32%) | 45.00K Increased by +13.56% | Mar 31, 26 |
| 17 | Darwin Global Management, Ltd. | 325.14K (2.27%) | 325.14K Increased by +100.00% | Jun 30, 24 |
| 18 | Ikarian Capital, LLC | 284.71K (1.99%) | -24.82K Decreased by -8.72% | Sep 30, 24 |
| 19 | BlackRock Inc | 271.64K (1.90%) | 3.59K Increased by +1.32% | Mar 31, 26 |
| 20 | Woodline Partners LP | 249.26K (1.74%) | 208.28K Increased by +83.56% | Jun 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | abrdn Healthcare Investors | 778.03K (5.43%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 2 | abrdn Life Sciences Investors | 543.72K (3.80%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 3 | Biotech Growth Ord | 538.60K (3.76%) | 0.00 Increased by 0.00% | Feb 28, 26 |
| 4 | Vanguard Total Stock Mkt Idx Inv | 533.58K (3.72%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 5 | SPDR® S&P Biotech ETF | 373.01K (2.60%) | -11.34K Decreased by -3.04% | Nov 27, 24 |
| 6 | Vanguard US Total Market Shares ETF | 329.22K (2.30%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 7 | Vanguard Institutional Extnd Mkt Idx Tr | 178.42K (1.25%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 8 | Global X Marijuana Life Sciences ETF | 164.90K (1.15%) | 4.44K Increased by +2.69% | Apr 30, 26 |
| 9 | Fidelity Small Cap Index | 121.00K (0.84%) | -1.38K Decreased by -1.14% | May 31, 25 |
| 10 | HBM Healthcare Investments AG Ord | 117.50K (0.82%) | -202.50K Decreased by -172.35% | Jun 30, 25 |
| 11 | Nuveen Quant Small Cap Equity R6 | 98.90K (0.69%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 12 | Fidelity Extended Market Index | 87.92K (0.61%) | -321.00 Decreased by -0.37% | Apr 30, 26 |
| 13 | HealthInvest Sustainable Healthcare E | 69.77K (0.49%) | 69.77K Increased by +100.00% | Dec 31, 25 |
| 14 | State St Russell Sm/Mid Cp® Indx NL Cl C | 66.91K (0.47%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 15 | State St Russell Sm/Mid Cp® Indx SL Cl I | 66.91K (0.47%) | 0.00 Increased by 0.00% | May 31, 25 |
| 16 | Victory Science & Technology | 65.88K (0.46%) | -156.00 Decreased by -0.24% | Dec 31, 24 |
| 17 | HealthInvest Alpha Fund C | 62.51K (0.44%) | 0.00 Increased by 0.00% | Jul 31, 25 |
| 18 | Healthlnvest S&M Cap Healthcare C | 62.51K (0.44%) | 0.00 Increased by 0.00% | Jul 31, 25 |
| 19 | iShares Russell 2000 ETF | 62.36K (0.44%) | -8.34K Decreased by -13.38% | Jun 30, 25 |
| 20 | iShares Russell 2000 Growth ETF | 62.15K (0.43%) | 0.00 Increased by 0.00% | May 31, 25 |