| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 22.38M (15.32%) | 298.55K Increased by +1.33% | Dec 31, 25 |
| 2 | ARK Investment Management LLC | 12.55M (8.59%) | 388.03K Increased by +3.09% | Dec 31, 25 |
| 3 | BlackRock Inc | 11.33M (7.76%) | 750.46K Increased by +6.62% | Dec 31, 25 |
| 4 | Redmile Group, LLC | 8.25M (5.65%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 5 | Vanguard Group Inc | 7.91M (5.41%) | 628.29K Increased by +7.94% | Dec 31, 25 |
| 6 | State Street Corp | 5.99M (4.10%) | 3.93M Increased by +65.53% | Dec 31, 25 |
| 7 | Advanced Micro Devices Inc | 5.71M (3.91%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 8 | Geode Capital Management, LLC | 3.24M (2.22%) | 186.71K Increased by +5.76% | Dec 31, 25 |
| 9 | Ameriprise Financial Inc | 3.20M (2.19%) | 5.57K Increased by +0.17% | Dec 31, 25 |
| 10 | Schonfeld Strategic Advisors LLC | 2.35M (1.61%) | 2.35M Increased by +100.00% | Dec 31, 25 |
| 11 | Woodline Partners LP | 2.28M (1.56%) | 510.74K Increased by +22.39% | Dec 31, 25 |
| 12 | T. Rowe Price Associates, Inc. | 2.16M (1.48%) | 2.09M Increased by +96.73% | Dec 31, 25 |
| 13 | Baker Bros Advisors LP | 2.13M (1.46%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 14 | Citadel Advisors Llc | 1.94M (1.33%) | 1.78M Increased by +91.51% | Dec 31, 25 |
| 15 | Bank of America Corp | 1.87M (1.28%) | 303.92K Increased by +16.27% | Jun 30, 25 |
| 16 | Parkman Healthcare Partners LLC | 1.86M (1.28%) | 406.15K Increased by +21.78% | Mar 31, 26 |
| 17 | Massachusetts Financial Services Company | 1.72M (1.18%) | 143.00 Increased by +0.01% | Mar 31, 26 |
| 18 | UBS Group AG | 1.60M (1.09%) | -1.10M Decreased by -68.74% | Mar 31, 26 |
| 19 | Royce & Associates, LP | 1.52M (1.04%) | 300.00K Increased by +19.75% | Jun 30, 25 |
| 20 | Nikko Asset Management Americas Inc | 1.49M (1.02%) | 350.04K Increased by +23.43% | Mar 31, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | ARK Genomic Revolution ETF | 11.88M (8.13%) | 502.60K Increased by +4.23% | Apr 30, 26 |
| 2 | ARK Genomic Revolution | 11.20M (7.67%) | -344.64K Decreased by -3.08% | Mar 31, 26 |
| 3 | Fidelity Growth Compy Commingled Pl S | 9.94M (6.80%) | 14.45K Increased by +0.15% | Mar 31, 26 |
| 4 | Fidelity Growth Company Fund | 6.91M (4.73%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 5 | Fidelity Growth Compy Commingled Pl O | 5.75M (3.94%) | 0.00 Increased by 0.00% | Aug 31, 24 |
| 6 | State Street® SPDR® S&P® Biotech ETF | 5.05M (3.46%) | -49.92K Decreased by -0.99% | Apr 30, 26 |
| 7 | Vanguard Total Stock Mkt Idx Inv | 4.25M (2.91%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 8 | Fidelity® Growth Company | 3.95M (2.70%) | 0.00 Increased by 0.00% | Nov 30, 23 |
| 9 | iShares Russell 2000 ETF | 3.20M (2.19%) | 26.93K Increased by +0.84% | Apr 30, 26 |
| 10 | Columbia Acorn Inst | 2.57M (1.76%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 11 | Alger Small Cap Focus Composite | 2.47M (1.69%) | -290.00K Decreased by -11.75% | Jun 30, 25 |
| 12 | Alger Small Cap Focus I | 2.47M (1.69%) | -290.00K Decreased by -11.75% | Jun 30, 25 |
| 13 | Fidelity Growth Company K6 | 2.22M (1.52%) | -14.45K Decreased by -0.65% | Mar 31, 26 |
| 14 | Fidelity Series Growth Company | 1.90M (1.30%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 15 | Fidelity® Growth Company K6 | 1.57M (1.07%) | -29.92K Decreased by -1.90% | Nov 30, 23 |
| 16 | Fidelity Select Biotechnology | 1.54M (1.05%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 17 | Vanguard Institutional Extnd Mkt Idx Tr | 1.49M (1.02%) | 16.70K Increased by +1.12% | Mar 31, 26 |
| 18 | US Small-Cap Growth II Equity Comp | 1.35M (0.92%) | 1.35M Increased by +100.00% | Dec 31, 25 |
| 19 | Fidelity Small Cap Index | 1.34M (0.92%) | 13.93K Increased by +1.04% | Feb 28, 26 |
| 20 | MFS New Discovery I | 1.26M (0.86%) | 0.00 Increased by 0.00% | Mar 31, 26 |