| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 5.75M (11.50%) | 519.53K Increased by +9.03% | Mar 31, 26 |
| 2 | Farallon Capital Management, L.L.C. | 5.68M (11.35%) | 524.50K Increased by +9.23% | Mar 31, 26 |
| 3 | Vanguard Group Inc | 5.59M (11.17%) | -10.52K Decreased by -0.19% | Dec 31, 25 |
| 4 | Wellington Management Company LLP | 5.20M (10.38%) | -666.57K Decreased by -12.82% | Sep 30, 23 |
| 5 | Bellevue Group AG | 3.59M (7.17%) | 75.00K Increased by +2.09% | Jun 30, 25 |
| 6 | State Street Corp | 3.36M (6.72%) | 256.73K Increased by +7.63% | Mar 31, 26 |
| 7 | State Street Corporation | 3.14M (6.27%) | 512.51K Increased by +16.33% | Mar 31, 24 |
| 8 | Armistice Capital, LLC | 2.72M (5.43%) | -320.00K Decreased by -11.78% | Mar 31, 26 |
| 9 | Erste Asset Management GmbH | 2.70M (5.40%) | -100.00K Decreased by -3.70% | Mar 31, 26 |
| 10 | D. E. Shaw & Co LP | 2.68M (5.36%) | 843.98K Increased by +31.48% | Mar 31, 26 |
| 11 | Vanguard Capital Management, LLC | 2.63M (5.26%) | 2.63M Increased by +100.00% | Mar 31, 26 |
| 12 | Lynx1 Capital Management, LP | 2.61M (5.22%) | 2.53M Increased by +96.95% | Mar 31, 26 |
| 13 | Vanguard Portfolio Management, LLC | 2.61M (5.22%) | 2.61M Increased by +100.00% | Mar 31, 26 |
| 14 | COMMODORE CAPITAL LP | 2.34M (4.67%) | 13.29K Increased by +0.57% | Sep 30, 25 |
| 15 | Macquarie Group Ltd | 1.96M (3.91%) | 57.51K Increased by +2.94% | Sep 30, 25 |
| 16 | First Trust Advisors L.P. | 1.82M (3.63%) | 43.48K Increased by +2.39% | Dec 31, 23 |
| 17 | T. Rowe Price Associates, Inc. | 1.66M (3.31%) | -617.31K Decreased by -37.26% | Sep 30, 25 |
| 18 | BNP Paribas Investment Partners SA | 1.58M (3.16%) | 220.11K Increased by +13.92% | Mar 31, 26 |
| 19 | Jefferies Financial Group Inc | 1.50M (3.00%) | 1.50M Increased by +100.00% | Dec 31, 24 |
| 20 | Delaware Management Holdings Inc | 1.49M (2.99%) | -206.97K Decreased by -13.85% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Health Care Inv | 5.15M (10.28%) | 0.00 Increased by 0.00% | Sep 30, 23 |
| 2 | BB Biotech AG Ord | 3.71M (7.42%) | 124.59K Increased by +3.35% | Sep 30, 25 |
| 3 | State Street® SPDR® S&P® Biotech ETF | 2.14M (4.27%) | -13.14K Decreased by -0.61% | May 31, 26 |
| 4 | Vanguard Total Stock Mkt Idx Inv | 1.89M (3.77%) | 9.04K Increased by +0.48% | Apr 30, 26 |
| 5 | Vanguard US Total Market Shares ETF | 1.79M (3.57%) | 2.35K Increased by +0.13% | Sep 30, 24 |
| 6 | First Trust NYSE Arca Biotech ETF | 1.76M (3.53%) | -143.00 Decreased by -0.01% | Dec 28, 23 |
| 7 | Delaware US Small Cap Core Equity (SMA) | 1.61M (3.22%) | -18.86K Decreased by -1.17% | Mar 31, 24 |
| 8 | Macquarie US Small Cap Core Equity | 1.61M (3.22%) | -18.86K Decreased by -1.17% | Mar 31, 24 |
| 9 | Macquarie Small Cap Core I | 1.43M (2.86%) | -107.41K Decreased by -7.51% | Jul 31, 25 |
| 10 | Delaware Small Cap Core I | 1.38M (2.76%) | 0.00 Increased by 0.00% | Oct 31, 24 |
| 11 | Vanguard Small Cap Index | 1.35M (2.70%) | 442.00 Increased by +0.03% | Apr 30, 26 |
| 12 | iShares Russell 2000 ETF | 1.34M (2.67%) | 12.38K Increased by +0.92% | May 29, 26 |
| 13 | Nomura US Small Cap Core Equity | 1.18M (2.36%) | 397.81K Increased by +33.65% | Mar 31, 26 |
| 14 | Nomura Small Cap Core I | 1.15M (2.31%) | -28.08K Decreased by -2.43% | Apr 30, 26 |
| 15 | Polar Capital Biotech S Inc | 1.00M (2.00%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 16 | DWS Vermögensbildungsfonds I LD | 805.52K (1.61%) | 3.00 Increased by +0.00% | Jul 31, 25 |
| 17 | BNP Paribas US Small Cap ClassicC | 790.50K (1.58%) | 201.00 Increased by +0.03% | Apr 30, 26 |
| 18 | Vanguard Small Cap Growth Index Inv | 755.19K (1.51%) | -592.00 Decreased by -0.08% | Apr 30, 26 |
| 19 | American Funds SMALLCAP World A | 703.87K (1.41%) | 703.87K Increased by +100.00% | Dec 31, 25 |
| 20 | Vanguard Institutional Extnd Mkt Idx Tr | 660.45K (1.32%) | 5.57K Increased by +0.84% | Apr 30, 26 |