| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 31.96M (17.16%) | 7.27M Increased by +22.74% | Mar 31, 26 |
| 2 | Kynam Capital Management, LP | 15.01M (8.06%) | 6.05M Increased by +40.28% | Mar 31, 26 |
| 3 | TANG CAPITAL MANAGEMENT LLC | 11.07M (5.94%) | 0.00 Increased by 0.00% | Sep 30, 25 |
| 4 | Bank of America Corp | 10.20M (5.48%) | 9.33M Increased by +91.41% | Mar 31, 26 |
| 5 | Perceptive Advisors LLC | 10.10M (5.42%) | 418.64K Increased by +4.15% | Mar 31, 26 |
| 6 | VR Adviser, LLC | 9.98M (5.36%) | -5.58M Decreased by -55.89% | Mar 31, 26 |
| 7 | Vanguard Capital Management, LLC | 8.73M (4.69%) | 8.73M Increased by +100.00% | Mar 31, 26 |
| 8 | Vanguard Group Inc | 8.48M (4.55%) | -472.22K Decreased by -5.57% | Dec 31, 25 |
| 9 | Point72 Asset Management, L.P. | 7.88M (4.23%) | 2.69M Increased by +34.10% | Mar 31, 26 |
| 10 | COMMODORE CAPITAL LP | 7.69M (4.13%) | 0.00 Increased by 0.00% | Dec 31, 25 |
| 11 | Franklin Resources Inc | 5.77M (3.10%) | 5.77M Increased by +100.00% | Jun 30, 25 |
| 12 | State Street Corp | 5.66M (3.04%) | 522.48K Increased by +9.23% | Mar 31, 26 |
| 13 | Citadel Advisors Llc | 5.41M (2.90%) | 5.06M Increased by +93.67% | Mar 31, 26 |
| 14 | Bvf Inc | 5.23M (2.81%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 15 | BlackRock Inc | 5.23M (2.81%) | 1.56M Increased by +29.82% | Mar 31, 26 |
| 16 | Baker Bros Advisors LP | 4.98M (2.67%) | 725.00K Increased by +14.57% | Mar 31, 26 |
| 17 | HHG PLC | 4.81M (2.58%) | -1.49M Decreased by -31.03% | Sep 30, 24 |
| 18 | Elmind Capital LP | 4.55M (2.44%) | 3.85M Increased by +84.62% | Mar 31, 26 |
| 19 | Marshall Wace Asset Management Ltd | 4.14M (2.22%) | 2.98M Increased by +72.04% | Mar 31, 26 |
| 20 | Fairmount Funds Management LLC | 3.90M (2.09%) | 3.90M Increased by +100.00% | Jun 30, 25 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 6.53M (3.51%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 2 | Fidelity Select Health Care | 5.00M (2.68%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 3 | State Street® SPDR® S&P® Biotech ETF | 4.93M (2.65%) | -30.69K Decreased by -0.62% | May 31, 26 |
| 4 | Fidelity Small Cap Growth | 3.97M (2.13%) | 687.12K Increased by +17.31% | Mar 31, 26 |
| 5 | Franklin Biotechnology Discv A(acc)USD | 2.92M (1.57%) | -800.28K Decreased by -27.37% | Jul 31, 25 |
| 6 | Fidelity Select Biotechnology | 2.77M (1.49%) | -330.60K Decreased by -11.92% | Apr 30, 26 |
| 7 | Strategic Advisers Fidelity US TtlStk | 2.64M (1.42%) | 602.71K Increased by +22.79% | Apr 30, 26 |
| 8 | Fidelity Advisor Health Care I | 2.50M (1.34%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 9 | FIAM Small Cap Core Composite | 2.49M (1.33%) | 1.40M Increased by +56.46% | Dec 31, 25 |
| 10 | Vanguard US Total Market Shares ETF | 2.46M (1.32%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 11 | Fidelity Stock Selector Small Cap | 2.45M (1.32%) | 411.70K Increased by +16.80% | Mar 31, 26 |
| 12 | FIAM Small Cap Core CIT Cl B | 2.43M (1.31%) | -54.40K Decreased by -2.24% | Mar 31, 26 |
| 13 | Fidelity Advisor Biotechnology I | 2.23M (1.20%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 14 | Vanguard Institutional Extnd Mkt Idx Tr | 2.02M (1.08%) | 24.90K Increased by +1.23% | Apr 30, 26 |
| 15 | Fidelity Small Cap Growth K6 | 1.99M (1.07%) | 348.36K Increased by +17.52% | Mar 31, 26 |
| 16 | Fidelity Series Small Cap Opps | 1.74M (0.93%) | 307.90K Increased by +17.73% | Mar 31, 26 |
| 17 | Biotech Growth Ord | 1.69M (0.91%) | 0.00 Increased by 0.00% | Apr 30, 24 |
| 18 | Franklin Biotechnology Discovery A | 1.57M (0.84%) | -470.89K Decreased by -29.92% | Jul 31, 25 |
| 19 | iShares Biotechnology ETF | 1.26M (0.68%) | 24.21K Increased by +1.92% | May 29, 26 |
| 20 | Fidelity Extended Market Index | 947.29K (0.51%) | -3.46K Decreased by -0.37% | Apr 30, 26 |