| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 8.93M (10.78%) | 50.45K Increased by +0.57% | Mar 31, 26 |
| 2 | Redmile Group, LLC | 7.73M (9.34%) | -361.10K Decreased by -4.67% | Mar 31, 26 |
| 3 | Vestal Point Capital LP | 6.50M (7.85%) | 1.81M Increased by +27.85% | Mar 31, 26 |
| 4 | Deep Track Capital, LP | 6.35M (7.66%) | -691.21K Decreased by -10.89% | Mar 31, 26 |
| 5 | Vanguard Group Inc | 5.95M (7.19%) | 1.46M Increased by +24.55% | Dec 31, 25 |
| 6 | FMR Inc | 5.54M (6.69%) | 1.31M Increased by +23.59% | Mar 31, 26 |
| 7 | State Street Corp | 5.14M (6.21%) | 1.58M Increased by +30.77% | Mar 31, 26 |
| 8 | Morgan Stanley - Brokerage Accounts | 4.93M (5.96%) | 50.93K Increased by +1.03% | Mar 31, 26 |
| 9 | Baker Bros Advisors LP | 4.66M (5.63%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 10 | Vanguard Capital Management, LLC | 4.43M (5.35%) | 4.43M Increased by +100.00% | Mar 31, 26 |
| 11 | General Atlantic Llc | 4.10M (4.95%) | -795.29K Decreased by -19.39% | Mar 31, 26 |
| 12 | Perceptive Advisors LLC | 3.71M (4.48%) | 155.00K Increased by +4.18% | Mar 31, 26 |
| 13 | T. Rowe Price Associates, Inc. | 3.29M (3.97%) | 41.87K Increased by +1.27% | Mar 31, 26 |
| 14 | Point72 Asset Management, L.P. | 3.21M (3.88%) | 340.18K Increased by +10.59% | Dec 31, 25 |
| 15 | Wasatch Advisors Inc. | 2.75M (3.32%) | -814.87K Decreased by -29.63% | Dec 31, 23 |
| 16 | State Street Corporation | 2.73M (3.30%) | 1.81M Increased by +66.24% | Mar 31, 24 |
| 17 | Pictet Asset Manangement SA | 2.73M (3.29%) | -741.46K Decreased by -27.20% | Mar 31, 26 |
| 18 | Geode Capital Management, LLC | 2.52M (3.04%) | 135.23K Increased by +5.37% | Mar 31, 26 |
| 19 | T. Rowe Price Investment Management,Inc. | 2.47M (2.99%) | 45.67K Increased by +1.85% | Jun 30, 25 |
| 20 | Rubric Capital Management LP | 2.47M (2.99%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 3.25M (3.92%) | 15.55K Increased by +0.48% | Apr 30, 26 |
| 2 | State Street® SPDR® S&P® Biotech ETF | 3.11M (3.76%) | -19.14K Decreased by -0.62% | May 31, 26 |
| 3 | iShares Russell 2000 ETF | 2.42M (2.92%) | 22.36K Increased by +0.92% | May 29, 26 |
| 4 | Xtrackers MSCI World Swap ETF 1C | 2.14M (2.58%) | -13.47K Decreased by -0.63% | Dec 31, 25 |
| 5 | Vanguard US Total Market Shares ETF | 2.13M (2.57%) | 196.50K Increased by +9.23% | Sep 30, 24 |
| 6 | Pictet-Biotech P USD | 1.79M (2.16%) | 7.04K Increased by +0.39% | Feb 28, 26 |
| 7 | Fidelity Select Health Care | 1.69M (2.04%) | 90.00K Increased by +5.33% | Jul 31, 25 |
| 8 | ARK Genomic Revolution | 1.63M (1.96%) | 96.44K Increased by +5.93% | Mar 31, 26 |
| 9 | ARK Genomic Revolution ETF | 1.57M (1.90%) | -4.17K Decreased by -0.26% | May 31, 26 |
| 10 | US Small-Cap Growth II Equity Comp | 1.35M (1.63%) | 14.21K Increased by +1.05% | Jun 30, 25 |
| 11 | Eventide Healthcare & Life Sciences I | 1.30M (1.57%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 12 | Nikko AM ARK Pstv Chg Innovt P JPY Acc | 1.10M (1.33%) | 273.18K Increased by +24.86% | Jun 30, 25 |
| 13 | Vanguard Institutional Extnd Mkt Idx Tr | 1.09M (1.32%) | 5.75K Increased by +0.53% | Apr 30, 26 |
| 14 | Strategic Advisers Fidelity US TtlStk | 1.03M (1.25%) | 20.00K Increased by +1.93% | Jul 31, 25 |
| 15 | Fidelity Advisor Health Care I | 1.00M (1.21%) | 50.00K Increased by +5.00% | Jul 31, 25 |
| 16 | Fidelity Small Cap Index | 996.66K (1.20%) | 15.49K Increased by +1.55% | Mar 31, 26 |
| 17 | T. Rowe Price Integrated US SmCapGrEq | 985.71K (1.19%) | 492.85K Increased by +50.00% | Dec 31, 24 |
| 18 | Fidelity Small Cap Growth | 948.30K (1.15%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 19 | Amova ARK Pstv Chg Innovt P JPY Acc | 936.26K (1.13%) | -28.26K Decreased by -3.02% | Apr 30, 26 |
| 20 | SPDR® S&P Biotech ETF | 922.53K (1.11%) | 2.06K Increased by +0.22% | Aug 31, 25 |