| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Baker Bros Advisors LP | 42.90M (33.73%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 2 | BlackRock Inc | 21.55M (16.94%) | 795.47K Increased by +3.69% | Mar 31, 26 |
| 3 | Vanguard Group Inc | 15.15M (11.91%) | -25.41K Decreased by -0.17% | Dec 31, 25 |
| 4 | Vanguard Portfolio Management, LLC | 8.67M (6.82%) | 8.67M Increased by +100.00% | Mar 31, 26 |
| 5 | State Street Corp | 8.33M (6.55%) | 422.04K Increased by +5.06% | Mar 31, 26 |
| 6 | RTW INVESTMENTS, LLC | 7.14M (5.62%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 7 | State Street Corporation | 6.00M (4.72%) | -463.62K Decreased by -7.73% | Mar 31, 24 |
| 8 | Vanguard Capital Management, LLC | 5.66M (4.45%) | 5.66M Increased by +100.00% | Mar 31, 26 |
| 9 | Morgan Stanley - Brokerage Accounts | 4.11M (3.23%) | -568.94K Decreased by -13.84% | Jun 30, 25 |
| 10 | T. Rowe Price Associates, Inc. | 4.00M (3.14%) | -1.18M Decreased by -29.48% | Mar 31, 24 |
| 11 | Geode Capital Management, LLC | 3.46M (2.72%) | 225.24K Increased by +6.50% | Mar 31, 26 |
| 12 | First Trust Advisors L.P. | 3.34M (2.63%) | 1.07M Increased by +32.11% | Mar 31, 26 |
| 13 | Dimensional Fund Advisors, Inc. | 3.16M (2.48%) | 234.19K Increased by +7.42% | Mar 31, 26 |
| 14 | Palo Alto Investors, LLC | 2.87M (2.26%) | 388.66K Increased by +13.53% | Mar 31, 26 |
| 15 | Point72 Asset Management, L.P. | 2.58M (2.03%) | -799.39K Decreased by -31.01% | Mar 31, 26 |
| 16 | SG Americas Securities, LLC | 2.48M (1.95%) | 1.97M Increased by +79.18% | Dec 31, 24 |
| 17 | BRAIDWELL LP | 2.47M (1.94%) | 439.18K Increased by +17.77% | Mar 31, 26 |
| 18 | FMR Inc | 2.37M (1.86%) | -1.63M Decreased by -68.73% | Jun 30, 24 |
| 19 | Marshall Wace Asset Management Ltd | 2.36M (1.85%) | 389.17K Increased by +16.50% | Sep 30, 25 |
| 20 | Rockefeller Capital Management L.P. | 2.33M (1.83%) | 1.19M Increased by +51.13% | Jun 30, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 7.64M (6.00%) | 1.20K Increased by +0.02% | Jun 30, 26 |
| 2 | Vanguard Total Stock Mkt Idx Inv | 4.08M (3.20%) | 18.29K Increased by +0.45% | Jun 30, 26 |
| 3 | State Street® SPDR® S&P® Biotech ETF | 3.96M (3.12%) | -88.02K Decreased by -2.22% | Jun 30, 26 |
| 4 | Vanguard US Total Market Shares ETF | 3.89M (3.06%) | 4.42K Increased by +0.11% | Sep 30, 24 |
| 5 | iShares Russell 2000 ETF | 3.37M (2.65%) | 20.00K Increased by +0.59% | Jun 30, 26 |
| 6 | First Trust NYSE Arca Biotech ETF | 3.01M (2.37%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 7 | Vanguard Small Cap Index | 2.94M (2.31%) | -2.09K Decreased by -0.07% | Jun 30, 26 |
| 8 | Vanguard Small Cap Growth Index Inv | 1.70M (1.34%) | 47.42K Increased by +2.79% | Jun 30, 26 |
| 9 | Fidelity® Growth Company | 1.70M (1.33%) | 57.80K Increased by +3.41% | Nov 30, 23 |
| 10 | SPDR® S&P Biotech ETF | 1.54M (1.21%) | 3.42K Increased by +0.22% | Aug 31, 25 |
| 11 | T. Rowe Price New Horizons | 1.53M (1.20%) | -176.30K Decreased by -11.53% | Mar 31, 24 |
| 12 | US Small-Cap Growth II Equity Comp | 1.53M (1.20%) | -176.30K Decreased by -11.53% | Mar 31, 24 |
| 13 | Vanguard Institutional Extnd Mkt Idx Tr | 1.46M (1.15%) | 39.25K Increased by +2.69% | Jun 30, 26 |
| 14 | Fidelity Small Cap Index | 1.24M (0.98%) | 10.88K Increased by +0.87% | Apr 30, 26 |
| 15 | iShares Biotechnology ETF | 1.21M (0.95%) | 12.51K Increased by +1.04% | Jun 30, 26 |
| 16 | T. Rowe Price Health Sciences | 1.20M (0.94%) | -68.81K Decreased by -5.76% | Dec 31, 23 |
| 17 | iShares Russell 2000 Growth ETF | 1.19M (0.93%) | -4.56K Decreased by -0.38% | Jun 30, 26 |
| 18 | Fidelity® Small Cap Index | 1.17M (0.92%) | 31.83K Increased by +2.73% | Oct 31, 23 |
| 19 | State Street SPDR Port S&P 600 Sm CpETF | 1.17M (0.92%) | -796.00 Decreased by -0.07% | Jun 30, 26 |
| 20 | iShares S&P Small-Cap 600 Growth ETF | 1.14M (0.90%) | 3.71K Increased by +0.33% | Jun 30, 26 |