| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 6.59M (10.94%) | 52.05K Increased by +0.79% | Sep 30, 23 |
| 2 | FMR Inc | 6.09M (10.11%) | -622.88K Decreased by -10.24% | Sep 30, 23 |
| 3 | Vanguard Group Inc | 5.97M (9.91%) | 37.72K Increased by +0.63% | Sep 30, 23 |
| 4 | T. Rowe Price Associates, Inc. | 5.50M (9.13%) | -126.80K Decreased by -2.31% | Sep 30, 23 |
| 5 | Wellington Management Company LLP | 5.08M (8.44%) | 156.81K Increased by +3.09% | Sep 30, 23 |
| 6 | Rock Springs Capital Management LP | 2.69M (4.46%) | 498.62K Increased by +18.57% | Sep 30, 23 |
| 7 | State Street Corporation | 2.63M (4.36%) | 122.63K Increased by +4.67% | Sep 30, 23 |
| 8 | T. Rowe Price Investment Management,Inc. | 2.46M (4.08%) | 7.13K Increased by +0.29% | Sep 30, 23 |
| 9 | JPMorgan Chase & Co | 1.69M (2.81%) | 85.65K Increased by +5.06% | Sep 30, 23 |
| 10 | Macquarie Group Ltd | 1.58M (2.62%) | 61.76K Increased by +3.91% | Sep 30, 23 |
| 11 | AllianceBernstein L.P. | 1.50M (2.49%) | -113.93K Decreased by -7.61% | Sep 30, 23 |
| 12 | William Blair Investment Management, LLC | 1.46M (2.42%) | -17.86K Decreased by -1.23% | Sep 30, 23 |
| 13 | Geode Capital Management, LLC | 1.27M (2.10%) | 45.30K Increased by +3.58% | Sep 30, 23 |
| 14 | Polar Capital Holdings PLC | 1.04M (1.73%) | 540.00K Increased by +51.92% | Sep 30, 23 |
| 15 | Alkeon Capital Management, LLC | 943.93K (1.57%) | 0.00 Increased by 0.00% | Sep 30, 23 |
| 16 | Millennium Management LLC | 856.03K (1.42%) | 623.50K Increased by +72.84% | Sep 30, 23 |
| 17 | Pictet Asset Manangement SA | 756.33K (1.26%) | 756.33K Increased by +100.00% | Sep 30, 23 |
| 18 | Avidity Partners Management LP | 751.60K (1.25%) | 336.60K Increased by +44.78% | Sep 30, 23 |
| 19 | American Century Companies Inc | 670.97K (1.11%) | 33.24K Increased by +4.95% | Sep 30, 23 |
| 20 | Brown Advisory Holdings Inc | 641.04K (1.06%) | 5.84K Increased by +0.91% | Sep 30, 23 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Health Care Inv | 2.38M (3.95%) | 0.00 Increased by 0.00% | Sep 30, 23 |
| 2 | US Small-Cap Growth II Equity Comp | 2.10M (3.49%) | 2.10M Increased by +100.00% | Jun 30, 23 |
| 3 | T. Rowe Price New Horizons | 2.10M (3.49%) | -721.00 Decreased by -0.03% | Sep 30, 23 |
| 4 | Vanguard Total Stock Mkt Idx Inv | 1.92M (3.19%) | 15.48K Increased by +0.81% | Nov 30, 23 |
| 5 | iShares Russell 2000 ETF | 1.62M (2.70%) | 10.32K Increased by +0.64% | Dec 29, 23 |
| 6 | Vanguard Small Cap Index | 1.57M (2.61%) | 4.79K Increased by +0.30% | Nov 30, 23 |
| 7 | T. Rowe Price Health Sciences | 1.56M (2.58%) | -162.50K Decreased by -10.45% | Sep 30, 23 |
| 8 | Delaware Small Cap Core I | 1.17M (1.94%) | 0.00 Increased by 0.00% | Nov 30, 23 |
| 9 | Macquarie US Small Cap Core Equity | 1.17M (1.94%) | 0.00 Increased by 0.00% | Dec 31, 23 |
| 10 | SPDR® S&P Biotech ETF | 1.08M (1.79%) | -6.23K Decreased by -0.58% | Dec 31, 23 |
| 11 | Polar Capital Biotech S Inc | 925.00K (1.54%) | -75.00K Decreased by -8.11% | Nov 30, 23 |
| 12 | Vanguard Small Cap Growth Index Inv | 879.53K (1.46%) | 4.48K Increased by +0.51% | Nov 30, 23 |
| 13 | Vanguard Institutional Extnd Mkt Idx Tr | 868.49K (1.44%) | 6.69K Increased by +0.77% | Nov 30, 23 |
| 14 | Vanguard Explorer Inv | 852.45K (1.42%) | 186.16K Increased by +21.84% | Sep 30, 23 |
| 15 | Fidelity Select Health Care | 720.00K (1.20%) | 0.00 Increased by 0.00% | Nov 30, 23 |
| 16 | Select Health Care | 720.00K (1.20%) | 0.00 Increased by 0.00% | Oct 31, 23 |
| 17 | T. Rowe Price Small-Cap Stock | 671.65K (1.12%) | -1.00K Decreased by -0.15% | Sep 30, 23 |
| 18 | T. Rowe Price US Small-Cap Core Equity | 671.65K (1.12%) | -1.00K Decreased by -0.15% | Sep 30, 23 |
| 19 | Fidelity® Select Biotechnology | 656.31K (1.09%) | -57.30K Decreased by -8.73% | Nov 30, 23 |
| 20 | JPMorgan Small Cap Growth A | 618.81K (1.03%) | 3.09K Increased by +0.50% | Nov 30, 23 |