| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | HHG PLC | 4.31M (9.35%) | -180.32K Decreased by -4.19% | Dec 31, 23 |
| 2 | BlackRock Inc | 3.98M (8.64%) | 656.17K Increased by +16.5% | Sep 30, 23 |
| 3 | Alkeon Capital Management, LLC | 3.76M (8.18%) | -3.16K Decreased by -0.08% | Dec 31, 23 |
| 4 | T. Rowe Price Associates, Inc. | 3.68M (7.98%) | -134.27K Decreased by -3.65% | Dec 31, 23 |
| 5 | Vanguard Group Inc | 3.01M (6.54%) | 326.31K Increased by +10.83% | Sep 30, 23 |
| 6 | Wellington Management Company LLP | 2.88M (6.26%) | 2.05M Increased by +71.24% | Dec 31, 23 |
| 7 | FMR Inc | 2.75M (5.97%) | 162.82K Increased by +5.92% | Sep 30, 23 |
| 8 | State Street Corporation | 2.51M (5.44%) | 265.62K Increased by +10.6% | Sep 30, 23 |
| 9 | Baker Bros Advisors LP | 2.37M (5.14%) | 0 Increased by 0% | Sep 30, 23 |
| 10 | Adage Capital Partners Gp LLC | 1.94M (4.22%) | -1.11M Decreased by -56.92% | Sep 30, 23 |
| 11 | General Atlantic Llc | 1.79M (3.88%) | 0 Increased by 0% | Dec 31, 23 |
| 12 | Redmile Group, LLC | 1.77M (3.84%) | -41.99K Decreased by -2.37% | Sep 30, 23 |
| 13 | Boxer Capital LLC | 1.68M (3.64%) | 0 Increased by 0% | Sep 30, 23 |
| 14 | Perceptive Advisors LLC | 1.62M (3.52%) | -321.25K Decreased by -19.84% | Sep 30, 23 |
| 15 | AllianceBernstein L.P. | 1.28M (2.78%) | 1.16M Increased by +90.61% | Sep 30, 23 |
| 16 | Yiheng Capital LLC | 1.22M (2.65%) | 20.08K Increased by +1.64% | Sep 30, 23 |
| 17 | Geode Capital Management, LLC | 1.1M (2.4%) | 278.6K Increased by +25.25% | Sep 30, 23 |
| 18 | Rock Springs Capital Management LP | 1.08M (2.35%) | -338.09K Decreased by -31.27% | Dec 31, 23 |
| 19 | Lord, Abbett & Co LLC | 779.13K (1.69%) | 472.9K Increased by +60.7% | Sep 30, 23 |
| 20 | Avidity Partners Management LP | 739.1K (1.61%) | -285.9K Decreased by -38.68% | Sep 30, 23 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | SPDR® S&P Biotech ETF | 3.95M (8.57%) | -52.24K Decreased by -1.32% | Jan 31, 24 |
| 2 | T. Rowe Price New Horizons | 1.84M (4%) | 19.51K Increased by +1.06% | Dec 31, 23 |
| 3 | US Small-Cap Growth II Equity Comp | 1.84M (4%) | 302.26K Increased by +16.41% | Dec 31, 23 |
| 4 | Vanguard Total Stock Mkt Idx Inv | 1.5M (3.27%) | 0 Increased by 0% | Jan 31, 24 |
| 5 | Janus Henderson Global Life Sciences | 1.46M (3.18%) | 325.78K Increased by +22.28% | Dec 31, 23 |
| 6 | Janus Henderson Global Life Sciences D | 1.46M (3.18%) | 325.78K Increased by +22.28% | Dec 31, 23 |
| 7 | iShares Russell 2000 ETF | 1.27M (2.75%) | -23.14K Decreased by -1.83% | Jan 31, 24 |
| 8 | Janus Henderson Glb Life Scn I2 USD | 1.1M (2.4%) | -14.02K Decreased by -1.27% | Dec 31, 23 |
| 9 | Janus Selection Global Life Science AUSD | 1.1M (2.4%) | 234.46K Increased by +21.24% | Dec 31, 23 |
| 10 | Vanguard Institutional Extnd Mkt Idx Tr | 816.96K (1.77%) | 307 Increased by +0.04% | Jan 31, 24 |
| 11 | Janus Henderson Triton D | 758.39K (1.65%) | 0 Increased by 0% | Sep 30, 23 |
| 12 | Janus Henderson US SMID Cap Growth | 758.39K (1.65%) | 0 Increased by 0% | Sep 30, 23 |
| 13 | Pictet-Biotech P USD | 630.78K (1.37%) | -2.99K Decreased by -0.47% | Jul 31, 23 |
| 14 | Wellington Global Hlthcr Eq USD G Ac | 545K (1.18%) | -13.47K Decreased by -2.47% | Dec 31, 23 |
| 15 | T. Rowe Price Health Sciences | 538.76K (1.17%) | -189.13K Decreased by -35.1% | Dec 31, 23 |
| 16 | Eventide Healthcare & Life Sciences I | 513.88K (1.12%) | 134.76K Increased by +26.22% | Sep 30, 23 |
| 17 | AB Small Cap Growth A | 513K (1.11%) | 31.69K Increased by +6.18% | Dec 31, 23 |
| 18 | Fidelity Small Cap Index | 503.56K (1.09%) | 9.47K Increased by +1.88% | Nov 30, 23 |
| 19 | Fidelity® Small Cap Index | 494.09K (1.07%) | 13.15K Increased by +2.66% | Oct 31, 23 |
| 20 | iShares Russell 2000 Growth ETF | 444.97K (0.97%) | 521 Increased by +0.12% | Jan 31, 24 |