| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Bellevue Group AG | 9.93M (19.22%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 2 | Armistice Capital, LLC | 6.30M (12.19%) | 20.00K Increased by +0.32% | Mar 31, 25 |
| 3 | venBio Select Advisor LLC | 6.15M (11.90%) | 6.15M Increased by +100.00% | Mar 31, 24 |
| 4 | BlackRock Inc | 4.91M (9.51%) | -144.05K Decreased by -2.93% | Mar 31, 25 |
| 5 | Vanguard Group Inc | 4.43M (8.57%) | 109.31K Increased by +2.47% | Mar 31, 25 |
| 6 | State Street Corporation | 4.39M (8.50%) | 2.22M Increased by +50.47% | Mar 31, 24 |
| 7 | Wasatch Advisors LP | 3.25M (6.29%) | -238.25K Decreased by -7.33% | Mar 31, 25 |
| 8 | Millennium Management LLC | 2.86M (5.54%) | -671.18K Decreased by -23.43% | Dec 31, 24 |
| 9 | T. Rowe Price Investment Management,Inc. | 2.77M (5.36%) | -2.87M Decreased by -103.83% | Mar 31, 24 |
| 10 | RA Capital Management, LLC | 2.08M (4.03%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 11 | Geode Capital Management, LLC | 1.46M (2.82%) | 22.97K Increased by +1.58% | Mar 31, 25 |
| 12 | State Street Corp | 1.41M (2.73%) | -53.22K Decreased by -3.78% | Mar 31, 25 |
| 13 | Wasatch Advisors Inc. | 1.30M (2.51%) | -111.96K Decreased by -8.63% | Dec 31, 23 |
| 14 | SILVERARC CAPITAL MANAGEMENT, LLC | 1.26M (2.44%) | -5.52K Decreased by -0.44% | Dec 31, 23 |
| 15 | T. Rowe Price Associates, Inc. | 1.25M (2.43%) | -82.78K Decreased by -6.60% | Sep 30, 24 |
| 16 | Goldman Sachs Group Inc | 1.24M (2.39%) | 733.87K Increased by +59.38% | Dec 31, 23 |
| 17 | Renaissance Technologies Corp | 1.15M (2.23%) | 613.75K Increased by +53.26% | Mar 31, 25 |
| 18 | Rock Springs Capital Management LP | 1.15M (2.22%) | 91.57K Increased by +8.00% | Mar 31, 25 |
| 19 | Morgan Stanley - Brokerage Accounts | 1.10M (2.14%) | 784.56K Increased by +71.04% | Dec 31, 24 |
| 20 | Two Sigma Advisers, LLC | 1.07M (2.07%) | -50.40K Decreased by -4.72% | Mar 31, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BB Biotech AG Ord | 9.93M (19.22%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 2 | Wasatch Ultra Growth | 2.82M (5.46%) | 406.08K Increased by +14.39% | Mar 31, 25 |
| 3 | SPDR® S&P Biotech ETF | 2.78M (5.38%) | -37.04K Decreased by -1.33% | Apr 30, 24 |
| 4 | Vanguard US Total Market Shares ETF | 2.00M (3.87%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 5 | Vanguard Total Stock Mkt Idx Inv | 1.97M (3.82%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 6 | iShares Russell 2000 ETF | 1.51M (2.92%) | 255.00 Increased by +0.02% | Apr 30, 25 |
| 7 | Vanguard Institutional Extnd Mkt Idx Tr | 931.11K (1.80%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 8 | Wasatch Micro Cap | 773.76K (1.50%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 9 | T. Rowe Price New Horizons | 750.71K (1.45%) | 750.71K Increased by +100.00% | Mar 31, 24 |
| 10 | US Small-Cap Growth II Equity Comp | 750.71K (1.45%) | 750.71K Increased by +100.00% | Mar 31, 24 |
| 11 | T. Rowe Price Small-Cap Stock | 707.16K (1.37%) | -665.30K Decreased by -94.08% | Mar 31, 24 |
| 12 | T. Rowe Price US Small-Cap Core Equity | 707.16K (1.37%) | -665.30K Decreased by -94.08% | Mar 31, 24 |
| 13 | T. Rowe Price Small-Cap Value | 679.96K (1.32%) | -966.34K Decreased by -142.12% | Mar 31, 24 |
| 14 | T. Rowe Price U.S. SC Core Eq Tr-Z | 670.71K (1.30%) | 70.60K Increased by +10.53% | Dec 31, 23 |
| 15 | Fidelity Small Cap Index | 616.08K (1.19%) | 0.00 Increased by 0.00% | Feb 28, 25 |
| 16 | Fidelity® Small Cap Index | 588.71K (1.14%) | 17.84K Increased by +3.03% | Oct 31, 23 |
| 17 | Federated Hermes MDT SCC Institutional | 550.65K (1.07%) | -86.61K Decreased by -15.73% | Dec 31, 23 |
| 18 | T. Rowe Price Instl Small-Cap Stock | 523.38K (1.01%) | 113.70K Increased by +21.72% | Dec 31, 23 |
| 19 | JPMorgan Small Cap Value I | 510.51K (0.99%) | 0.00 Increased by 0.00% | Mar 31, 24 |
| 20 | State St Russell Sm/Mid Cp® Indx NL Cl C | 476.20K (0.92%) | 0.00 Increased by 0.00% | Apr 30, 25 |