| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | HHG PLC | 1.16M (22.34%) | 10.34K Increased by +0.89% | Dec 31, 25 |
| 2 | Cormorant Asset Management, LLC | 1.06M (20.47%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 3 | Vivo Capital, LLC | 501.62K (9.70%) | 0.00 Increased by 0.00% | Dec 31, 25 |
| 4 | COMMODORE CAPITAL LP | 500.00K (9.66%) | 0.00 Increased by 0.00% | Sep 30, 25 |
| 5 | Perceptive Advisors LLC | 449.29K (8.68%) | 28.60K Increased by +6.37% | Sep 30, 25 |
| 6 | Adage Capital Partners Gp LLC | 395.74K (7.65%) | 0.00 Increased by 0.00% | Dec 31, 25 |
| 7 | BlackRock Inc | 394.04K (7.62%) | 159.93K Increased by +40.59% | Dec 31, 25 |
| 8 | BRAIDWELL LP | 324.36K (6.27%) | 20.67K Increased by +6.37% | Dec 31, 25 |
| 9 | Driehaus Capital Management LLC | 269.64K (5.21%) | 269.64K Increased by +100.00% | Dec 31, 25 |
| 10 | Logos Global Management LP | 245.00K (4.74%) | 245.00K Increased by +100.00% | Dec 31, 24 |
| 11 | MPM Oncology Impact Management LP | 230.15K (4.45%) | 230.15K Increased by +100.00% | Dec 31, 25 |
| 12 | Balyasny Asset Management LLC | 225.41K (4.36%) | 38.49K Increased by +17.08% | Dec 31, 25 |
| 13 | RA Capital Management, LLC | 206.43K (3.99%) | -254.40K Decreased by -123.24% | Mar 31, 25 |
| 14 | Millennium Management LLC | 194.44K (3.76%) | 117.76K Increased by +60.56% | Dec 31, 25 |
| 15 | Ikarian Capital, LLC | 159.42K (3.08%) | 143.99K Increased by +90.32% | Dec 31, 25 |
| 16 | Morgan Stanley - Brokerage Accounts | 132.12K (2.55%) | -60.74K Decreased by -45.98% | Dec 31, 25 |
| 17 | Eventide Asset Management, LLC | 130.01K (2.51%) | 27.00K Increased by +20.77% | Mar 31, 26 |
| 18 | SEVEN GRAND MANAGERS, LLC | 120.00K (2.32%) | 70.00K Increased by +58.33% | Mar 31, 26 |
| 19 | Point72 Asset Management, L.P. | 105.02K (2.03%) | -30.00K Decreased by -28.57% | Sep 30, 25 |
| 20 | StemPoint Capital LP | 97.34K (1.88%) | 97.34K Increased by +100.00% | Dec 31, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | iShares Russell 2000 ETF | 164.78K (3.18%) | 1.41K Increased by +0.86% | Apr 30, 26 |
| 2 | Janus Henderson Hrzn Biotec E2 USD | 146.89K (2.84%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 3 | Heptagon Driehaus US Micro Cap Eq C$ Acc | 104.58K (2.02%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 4 | Eventide Healthcare & Life Sciences I | 103.01K (1.99%) | 103.01K Increased by +100.00% | Dec 31, 25 |
| 5 | BlackRock Health Sciences Opps Inv A | 95.66K (1.85%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 6 | BGF World Healthscience A2 | 76.78K (1.48%) | 76.78K Increased by +100.00% | Jan 31, 26 |
| 7 | iShares Russell 2000 Growth ETF | 56.90K (1.10%) | 146.00 Increased by +0.26% | Apr 30, 26 |
| 8 | Fidelity Small Cap Index | 49.53K (0.96%) | 511.00 Increased by +1.03% | Feb 28, 26 |
| 9 | Driehaus Micro Cap Growth USD | 42.01K (0.81%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 10 | State St Russell Sm/Mid Cp® Indx SL Cl I | 40.34K (0.78%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 11 | Biotech Growth Ord | 40.00K (0.77%) | 40.00K Increased by +100.00% | Jan 31, 26 |
| 12 | Vanguard Russell 2000 ETF | 34.34K (0.66%) | 9.29K Increased by +27.05% | Mar 31, 26 |
| 13 | Russell 2000 Equity Index Fund B | 32.01K (0.62%) | 4.32K Increased by +13.50% | Dec 31, 25 |
| 14 | State St Russell Sm Cap® Idx SL Cl I | 22.12K (0.43%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 15 | State St Russell Sm Cap® Indx SL Cl I | 22.12K (0.43%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 16 | Adara Smaller Companies | 20.24K (0.39%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 17 | Vanguard US Momentum Factor ETF | 19.18K (0.37%) | 7.73K Increased by +40.28% | Mar 31, 26 |
| 18 | AdvisorShares Psychedelics ETF | 18.70K (0.36%) | 285.00 Increased by +1.52% | Apr 30, 26 |
| 19 | iShares Micro-Cap ETF | 17.88K (0.35%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 20 | BlackRock Health Sciences Term Trust | 15.49K (0.30%) | 15.49K Increased by +100.00% | Dec 31, 25 |