| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Essex Woodlands Health Ventures | 7.71M (38.71%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 2 | Nantahala Capital Management, LLC | 5.14M (25.81%) | 32.53K Increased by +0.63% | Mar 31, 26 |
| 3 | First Light Asset Management, LLC | 2.75M (13.82%) | 199.39K Increased by +7.24% | Mar 31, 24 |
| 4 | Stonepine Capital Management Llc | 2.62M (13.13%) | 265.22K Increased by +10.13% | Mar 31, 26 |
| 5 | SILVERARC CAPITAL MANAGEMENT, LLC | 2.26M (11.34%) | -388.20K Decreased by -17.18% | Mar 31, 26 |
| 6 | Orbimed Advisors, LLC | 2.16M (10.84%) | -296.36K Decreased by -13.71% | Sep 30, 24 |
| 7 | Vanguard Group Inc | 1.83M (9.18%) | 30.67K Increased by +1.68% | Dec 31, 25 |
| 8 | Vanguard Capital Management, LLC | 1.54M (7.73%) | 1.54M Increased by +100.00% | Mar 31, 26 |
| 9 | Dafna Capital Management LLC | 1.44M (7.23%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 10 | Perkins Capital Management Inc | 1.42M (7.12%) | 20.91K Increased by +1.47% | Mar 31, 26 |
| 11 | AIGH Capital Management, LLC | 1.42M (7.11%) | -1.25M Decreased by -88.01% | Mar 31, 25 |
| 12 | UBS Group AG | 1.06M (5.32%) | -440.94K Decreased by -41.62% | Mar 31, 26 |
| 13 | Royce & Associates, LP | 1.00M (5.02%) | 1.00M Increased by +100.00% | Dec 31, 24 |
| 14 | Pentwater Capital Management LP | 815.00K (4.09%) | -183.75K Decreased by -22.55% | Jun 30, 25 |
| 15 | Citigroup Inc | 750.00K (3.76%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 16 | Opaleye Management Inc | 750.00K (3.76%) | -830.00K Decreased by -110.67% | Sep 30, 23 |
| 17 | Velan Capital Investment Management LP | 747.41K (3.75%) | 0.00 Increased by 0.00% | Sep 30, 25 |
| 18 | Federated Hermes Inc | 712.30K (3.57%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 19 | Sio Capital Management, LLC | 636.30K (3.19%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 20 | Sectoral Asset Management Inc | 525.00K (2.63%) | 346.63K Increased by +66.02% | Sep 30, 23 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 1.15M (5.77%) | 0.00 Increased by 0.00% | Jun 30, 26 |
| 2 | Vanguard US Total Market Shares ETF | 643.29K (3.23%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 3 | FTGF RY US SmCp Opp A USD Dis(A) | 553.14K (2.78%) | 31.95K Increased by +5.78% | Feb 28, 25 |
| 4 | Royce Small-Cap Opportunity Invmt | 532.97K (2.67%) | 532.97K Increased by +100.00% | Dec 31, 24 |
| 5 | Federated Hermes Kaufmann Growth | 500.00K (2.51%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 6 | Federated Hermes Kaufmann R | 500.00K (2.51%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 7 | Vanguard Institutional Extnd Mkt Idx Tr | 389.47K (1.95%) | 0.00 Increased by 0.00% | Jun 30, 26 |
| 8 | iShares Russell 2000 ETF | 359.80K (1.81%) | -2.87K Decreased by -0.80% | Apr 30, 24 |
| 9 | Kennedy Micro Cap | 293.76K (1.47%) | 1.41K Increased by +0.48% | Jun 30, 24 |
| 10 | Fidelity Extended Market Index | 216.62K (1.09%) | -46.69K Decreased by -21.55% | May 31, 26 |
| 11 | Federated Hermes Kaufmann Small Cap A | 200.00K (1.00%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 12 | Federated Hermes Kaufmann Small Cap Grow | 200.00K (1.00%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 13 | Paradigm Micro-Cap | 200.00K (1.00%) | 0.00 Increased by 0.00% | Aug 31, 25 |
| 14 | Fidelity Small Cap Index | 163.54K (0.82%) | 3.91K Increased by +2.39% | Jun 30, 24 |
| 15 | Fidelity® Small Cap Index | 155.60K (0.78%) | 3.54K Increased by +2.28% | Oct 31, 23 |
| 16 | Jacob Small Cap Growth Investor | 147.00K (0.74%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 17 | iShares Russell 2000 Growth ETF | 132.15K (0.66%) | -316.00 Decreased by -0.24% | Apr 30, 24 |
| 18 | Next Century Growth Micro Cap Growth | 126.43K (0.63%) | -82.13K Decreased by -64.96% | Sep 30, 23 |
| 19 | Jacob Discovery Fd Instl | 119.78K (0.60%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 20 | Calamos Timpani Small Cap Growth I | 110.59K (0.55%) | -26.56K Decreased by -24.02% | Mar 31, 24 |