| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | FMR Inc | 23.12M (14.37%) | 35.78K Increased by +0.15% | Mar 31, 26 |
| 2 | BlackRock Inc | 16.05M (9.97%) | 3.07M Increased by +19.14% | Mar 31, 26 |
| 3 | Vanguard Group Inc | 11.51M (7.16%) | 3.76M Increased by +32.63% | Dec 31, 25 |
| 4 | Paradigm Biocapital Advisors LP | 10.35M (6.44%) | 1.39M Increased by +13.42% | Jun 30, 25 |
| 5 | Deerfield Management Co | 9.04M (5.62%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 6 | State Street Corporation | 7.63M (4.74%) | 3.48M Increased by +45.58% | Mar 31, 24 |
| 7 | Vanguard Portfolio Management, LLC | 7.33M (4.56%) | 7.33M Increased by +100.00% | Mar 31, 26 |
| 8 | Vanguard Capital Management, LLC | 6.89M (4.29%) | 6.89M Increased by +100.00% | Mar 31, 26 |
| 9 | RA Capital Management, LLC | 6.42M (3.99%) | 0.00 Increased by 0.00% | Sep 30, 23 |
| 10 | HHG PLC | 5.97M (3.71%) | 1.43M Increased by +23.93% | Mar 31, 26 |
| 11 | State Street Corp | 5.66M (3.52%) | 723.24K Increased by +12.77% | Mar 31, 26 |
| 12 | Fairmount Funds Management LLC | 5.50M (3.42%) | -3.50M Decreased by -63.60% | Mar 31, 26 |
| 13 | RTW INVESTMENTS, LLC | 5.46M (3.39%) | -2.13M Decreased by -39.09% | Mar 31, 26 |
| 14 | TCG Crossover Management, LLC | 4.95M (3.08%) | -921.27K Decreased by -18.62% | Mar 31, 26 |
| 15 | Point72 Asset Management, L.P. | 4.91M (3.05%) | -383.62K Decreased by -7.81% | Jun 30, 25 |
| 16 | The Goldman Sachs Group Inc | 4.43M (2.76%) | 2.73M Increased by +61.54% | Mar 31, 26 |
| 17 | Adage Capital Partners Gp LLC | 4.30M (2.67%) | 233.97K Increased by +5.44% | Dec 31, 24 |
| 18 | Kynam Capital Management, LP | 4.04M (2.51%) | -2.13M Decreased by -52.71% | Mar 31, 26 |
| 19 | Suvretta Capital Management, LLC | 3.71M (2.31%) | 657.24K Increased by +17.71% | Dec 31, 23 |
| 20 | Geode Capital Management, LLC | 3.70M (2.30%) | 184.96K Increased by +5.00% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 4.92M (3.06%) | 13.51K Increased by +0.27% | Apr 30, 26 |
| 2 | Vanguard Small Cap Index | 3.55M (2.21%) | -7.78K Decreased by -0.22% | Apr 30, 26 |
| 3 | iShares Russell 2000 ETF | 3.42M (2.13%) | 31.62K Increased by +0.92% | May 29, 26 |
| 4 | Vanguard US Total Market Shares ETF | 3.09M (1.92%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 5 | State Street® SPDR® S&P® Biotech ETF | 2.60M (1.62%) | -15.99K Decreased by -0.62% | May 31, 26 |
| 6 | Fidelity Small Cap Growth | 2.51M (1.56%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 7 | Vanguard Small Cap Value Index Inv | 2.28M (1.42%) | 15.44K Increased by +0.68% | Apr 30, 26 |
| 8 | Fidelity Select Health Care | 1.90M (1.18%) | -380.00K Decreased by -20.00% | Apr 30, 26 |
| 9 | Fidelity OTC | 1.87M (1.16%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 10 | FIAM Small Cap Core Composite | 1.87M (1.16%) | 225.12K Increased by +12.06% | Mar 31, 25 |
| 11 | Fidelity Advisor Biotechnology I | 1.83M (1.14%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 12 | FIAM Small Cap Core CIT Cl B | 1.83M (1.13%) | -15.60K Decreased by -0.85% | May 31, 25 |
| 13 | Vanguard Institutional Extnd Mkt Idx Tr | 1.73M (1.08%) | 17.76K Increased by +1.02% | Apr 30, 26 |
| 14 | Fidelity Select Biotechnology | 1.60M (1.00%) | -86.60K Decreased by -5.40% | Apr 30, 26 |
| 15 | BlackRock Health Sciences Opps Inv A | 1.41M (0.87%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 16 | Fidelity Small Cap Index | 1.40M (0.87%) | 42.84K Increased by +3.05% | Mar 31, 26 |
| 17 | Strategic Advisers Fidelity US TtlStk | 1.36M (0.84%) | 75.70K Increased by +5.57% | Apr 30, 26 |
| 18 | Lord Abbett & Co. Growth Equity- SA | 1.27M (0.79%) | 1.27M Increased by +100.00% | Mar 31, 26 |
| 19 | Lord Abbett Growth Leaders I | 1.27M (0.79%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 20 | Fidelity Small Cap Growth K6 | 1.25M (0.78%) | 0.00 Increased by 0.00% | Mar 31, 26 |