| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Group Inc | 9.39M (16.75%) | 1.03M Increased by +10.98% | Jun 30, 25 |
| 2 | BlackRock Inc | 6.89M (12.28%) | 719.85K Increased by +10.45% | Jun 30, 25 |
| 3 | EcoR1 Capital, LLC | 6.73M (11.99%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 4 | Citadel Advisors Llc | 3.67M (6.55%) | -201.53K Decreased by -5.48% | Jun 30, 25 |
| 5 | Pfizer Inc | 3.46M (6.16%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 6 | RTW INVESTMENTS, LLC | 3.33M (5.94%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 7 | Logos Global Management LP | 3.30M (5.88%) | 3.30M Increased by +100.00% | Jun 30, 25 |
| 8 | Bellevue Group AG | 2.39M (4.26%) | 3.00K Increased by +0.13% | Dec 31, 24 |
| 9 | Paradigm Biocapital Advisors LP | 2.34M (4.17%) | -98.19K Decreased by -4.20% | Sep 30, 24 |
| 10 | T. Rowe Price Investment Management,Inc. | 2.21M (3.94%) | 2.21M Increased by +100.00% | Dec 31, 24 |
| 11 | D. E. Shaw & Co LP | 2.15M (3.83%) | 2.15M Increased by +100.00% | Jun 30, 25 |
| 12 | Millennium Management LLC | 1.90M (3.38%) | 587.75K Increased by +30.97% | Jun 30, 25 |
| 13 | JPMorgan Chase & Co | 1.86M (3.31%) | -2.80M Decreased by -150.86% | Dec 31, 24 |
| 14 | Alyeska Investment Group, L.P. | 1.80M (3.21%) | 1.80M Increased by +100.00% | Mar 31, 25 |
| 15 | ArrowMark Colorado Holdings, LLC (ArrowMark Partners) | 1.78M (3.17%) | 532.11K Increased by +29.95% | Dec 31, 24 |
| 16 | State Street Corp | 1.73M (3.09%) | -163.87K Decreased by -9.46% | Jun 30, 25 |
| 17 | Opaleye Management Inc | 1.68M (3.00%) | -295.00K Decreased by -17.56% | Jun 30, 25 |
| 18 | New Leaf Venture Partners, L.L.C. | 1.59M (2.83%) | 0.00 Increased by 0.00% | Jun 30, 25 |
| 19 | Geode Capital Management, LLC | 1.59M (2.83%) | 48.30K Increased by +3.05% | Jun 30, 25 |
| 20 | Morgan Stanley - Brokerage Accounts | 1.58M (2.82%) | 735.78K Increased by +46.46% | Jun 30, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BB Biotech AG Ord | 2.38M (4.24%) | 0.00 Increased by 0.00% | Dec 31, 24 |
| 2 | Vanguard Total Stock Mkt Idx Inv | 2.01M (3.58%) | -44.64K Decreased by -2.22% | Jul 31, 25 |
| 3 | Vanguard US Total Market Shares ETF | 1.93M (3.45%) | 2.43K Increased by +0.13% | Sep 30, 24 |
| 4 | iShares Russell 2000 ETF | 1.60M (2.85%) | 0.00 Increased by 0.00% | Aug 31, 25 |
| 5 | Vanguard Explorer Inv | 1.56M (2.77%) | 683.33K Increased by +43.94% | Jun 30, 25 |
| 6 | Vanguard Strategic Equity Inv | 1.25M (2.22%) | 594.88K Increased by +47.68% | Jun 30, 25 |
| 7 | Vanguard Small Cap Index | 841.18K (1.50%) | -5.64K Decreased by -0.67% | Jul 31, 25 |
| 8 | JPMorgan Small Cap Growth A | 755.08K (1.35%) | -8.49K Decreased by -1.12% | Feb 28, 25 |
| 9 | Vanguard Institutional Extnd Mkt Idx Tr | 747.55K (1.33%) | -326.16K Decreased by -43.63% | Jul 31, 25 |
| 10 | T. Rowe Price New Horizons | 715.98K (1.28%) | -299.48K Decreased by -41.83% | Jun 30, 25 |
| 11 | US Small-Cap Growth II Equity Comp | 715.98K (1.28%) | -1.17M Decreased by -163.57% | Jun 30, 25 |
| 12 | Vanguard Strategic Small-Cap Equity Inv | 713.32K (1.27%) | 459.94K Increased by +64.48% | Jun 30, 25 |
| 13 | T. Rowe Price Small-Cap Stock | 702.69K (1.25%) | 94.70K Increased by +13.48% | Feb 28, 25 |
| 14 | Fidelity Small Cap Index | 660.63K (1.18%) | 6.80K Increased by +1.03% | Jun 30, 25 |
| 15 | FIAM Small Cap Core Composite | 601.40K (1.07%) | -165.20K Decreased by -27.47% | Dec 31, 24 |
| 16 | FIAM Small Cap Core CIT Cl B | 587.40K (1.05%) | -14.00K Decreased by -2.38% | Feb 28, 25 |
| 17 | iShares Russell 2000 Growth ETF | 555.88K (0.99%) | 0.00 Increased by 0.00% | May 31, 25 |
| 18 | iShares Russell 2000 Value ETF | 525.82K (0.94%) | 0.00 Increased by 0.00% | Aug 31, 25 |
| 19 | T. Rowe Price New Horizons Tr-A | 525.56K (0.94%) | 757.00 Increased by +0.14% | Mar 31, 25 |
| 20 | T. Rowe Price New Horizons Tr-Z | 525.56K (0.94%) | 757.00 Increased by +0.14% | Mar 31, 25 |