| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 28.60M (9.44%) | -348.52K Decreased by -1.22% | Mar 31, 26 |
| 2 | State Street Corp | 18.68M (6.16%) | 4.06M Increased by +21.73% | Mar 31, 26 |
| 3 | Vanguard Group Inc | 17.88M (5.90%) | 250.29K Increased by +1.40% | Dec 31, 25 |
| 4 | Vanguard Capital Management, LLC | 12.89M (4.25%) | 12.89M Increased by +100.00% | Mar 31, 26 |
| 5 | State Street Corporation | 11.94M (3.94%) | -999.00K Decreased by -8.37% | Mar 31, 24 |
| 6 | UBS Group AG | 8.26M (2.72%) | 3.15M Increased by +38.18% | Mar 31, 26 |
| 7 | Geode Capital Management, LLC | 7.51M (2.48%) | 131.01K Increased by +1.75% | Mar 31, 26 |
| 8 | Millennium Management LLC | 6.39M (2.11%) | 5.88M Increased by +91.98% | Mar 31, 26 |
| 9 | Frazier Life Sciences Management, L.P. | 5.90M (1.95%) | 1.68M Increased by +28.39% | Mar 31, 26 |
| 10 | Morgan Stanley - Brokerage Accounts | 5.79M (1.91%) | 1.35M Increased by +23.29% | Mar 31, 26 |
| 11 | Nitorum Capital, L.P. | 5.33M (1.76%) | -1.24M Decreased by -23.20% | Dec 31, 25 |
| 12 | Dimensional Fund Advisors, Inc. | 4.95M (1.63%) | 509.69K Increased by +10.29% | Mar 31, 26 |
| 13 | 180 WEALTH ADVISORS, LLC | 4.29M (1.42%) | 1.33M Increased by +31.05% | Mar 31, 26 |
| 14 | JPMorgan Chase & Co | 4.10M (1.35%) | 2.74M Increased by +66.99% | Sep 30, 25 |
| 15 | Rubric Capital Management LP | 3.62M (1.19%) | -3.86M Decreased by -106.51% | Mar 31, 26 |
| 16 | Citadel Advisors Llc | 3.57M (1.18%) | 2.27M Increased by +63.59% | Dec 31, 25 |
| 17 | FMR Inc | 3.48M (1.15%) | -96.57K Decreased by -2.77% | Mar 31, 26 |
| 18 | Two Sigma Advisers, LLC | 3.39M (1.12%) | -348.90K Decreased by -10.30% | Jun 30, 25 |
| 19 | Bank of America Corp | 3.38M (1.12%) | 1.02M Increased by +30.19% | Mar 31, 26 |
| 20 | TSP Capital Management Group/LLC | 3.34M (1.10%) | 380.80K Increased by +11.39% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | State Street® SPDR® S&P® Biotech ETF | 12.10M (3.99%) | -74.42K Decreased by -0.62% | May 31, 26 |
| 2 | Vanguard Total Stock Mkt Idx Inv | 9.15M (3.02%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 3 | Vanguard US Total Market Shares ETF | 8.09M (2.67%) | -22.90K Decreased by -0.28% | Sep 30, 24 |
| 4 | iShares Russell 2000 ETF | 7.31M (2.41%) | 67.55K Increased by +0.92% | May 29, 26 |
| 5 | Fidelity® Select Biotechnology | 5.93M (1.96%) | -518.10K Decreased by -8.74% | Nov 30, 23 |
| 6 | Vanguard Institutional Extnd Mkt Idx Tr | 3.47M (1.14%) | 36.43K Increased by +1.05% | Apr 30, 26 |
| 7 | Fidelity Select Biotechnology | 3.39M (1.12%) | 210.00K Increased by +6.19% | Apr 30, 26 |
| 8 | Fidelity Small Cap Index | 2.99M (0.99%) | 36.66K Increased by +1.23% | Mar 31, 26 |
| 9 | SPDR® S&P Biotech ETF | 2.87M (0.95%) | 6.40K Increased by +0.22% | Aug 31, 25 |
| 10 | iShares Russell 2000 Growth ETF | 2.48M (0.82%) | -16.11K Decreased by -0.65% | May 29, 26 |
| 11 | Fidelity® Small Cap Index | 2.47M (0.81%) | 65.46K Increased by +2.65% | Oct 31, 23 |
| 12 | iShares Biotechnology ETF | 2.18M (0.72%) | 41.69K Increased by +1.91% | May 29, 26 |
| 13 | Russell 2000 Equity Index Fund B | 1.90M (0.63%) | -63.14K Decreased by -3.33% | Dec 31, 25 |
| 14 | State St Russell Sm/Mid Cp® Indx SL Cl I | 1.77M (0.58%) | 0.00 Increased by 0.00% | May 31, 26 |
| 15 | Fidelity Extended Market Index | 1.64M (0.54%) | -5.98K Decreased by -0.37% | Apr 30, 26 |
| 16 | State St Russell Sm/Mid Cp® Indx NL Cl C | 1.55M (0.51%) | 7.57K Increased by +0.49% | Apr 30, 25 |
| 17 | Vanguard Russell 2000 ETF | 1.55M (0.51%) | 39.82K Increased by +2.58% | Apr 30, 26 |
| 18 | Nuveen Quant Small Cap Equity R6 | 1.53M (0.50%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 19 | Schwab US Small-Cap ETF™ | 1.47M (0.48%) | 981.00 Increased by +0.07% | May 30, 26 |
| 20 | Fidelity® Extended Market Index | 1.44M (0.48%) | 0.00 Increased by 0.00% | Nov 30, 23 |