| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 15.23M (17.09%) | 228.58K Increased by +1.50% | Mar 31, 26 |
| 2 | Vanguard Group Inc | 7.96M (8.94%) | 1.33M Increased by +16.75% | Dec 31, 25 |
| 3 | Wellington Management Company LLP | 6.09M (6.83%) | 905.01K Increased by +14.86% | Mar 31, 26 |
| 4 | State Street Corp | 5.41M (6.07%) | 835.93K Increased by +15.44% | Mar 31, 26 |
| 5 | Suvretta Capital Management, LLC | 5.03M (5.65%) | -157.87K Decreased by -3.14% | Mar 31, 26 |
| 6 | State Street Corporation | 4.90M (5.50%) | 664.94K Increased by +13.56% | Mar 31, 24 |
| 7 | Vanguard Portfolio Management, LLC | 4.27M (4.79%) | 4.27M Increased by +100.00% | Mar 31, 26 |
| 8 | Vanguard Capital Management, LLC | 3.86M (4.33%) | 3.86M Increased by +100.00% | Mar 31, 26 |
| 9 | Woodline Partners LP | 3.78M (4.24%) | 8.01K Increased by +0.21% | Mar 31, 26 |
| 10 | Marshall Wace Asset Management Ltd | 3.76M (4.22%) | 373.64K Increased by +9.93% | Mar 31, 26 |
| 11 | Point72 Asset Management, L.P. | 3.28M (3.68%) | -1.05M Decreased by -32.09% | Dec 31, 25 |
| 12 | Siren, L.L.C. | 3.01M (3.37%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 13 | Geode Capital Management, LLC | 2.25M (2.53%) | 345.02K Increased by +15.32% | Mar 31, 26 |
| 14 | Fisher Asset Management, LLC | 2.19M (2.46%) | 240.62K Increased by +10.99% | Mar 31, 26 |
| 15 | Octagon Capital Advisors LP | 1.97M (2.21%) | 0.00 Increased by 0.00% | Sep 30, 23 |
| 16 | Samlyn Capital, LLC | 1.91M (2.14%) | 304.14K Increased by +15.94% | Mar 31, 26 |
| 17 | BNP Paribas Investment Partners SA | 1.65M (1.86%) | -32.62K Decreased by -1.97% | Mar 31, 26 |
| 18 | Invus Financial Advisors, LLC | 1.61M (1.81%) | 0.00 Increased by 0.00% | Jun 30, 24 |
| 19 | Boxer Capital LLC | 1.60M (1.80%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 20 | Boxer Capital Management, LLC | 1.60M (1.80%) | 1.60M Increased by +100.00% | Dec 31, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.14M (5.77%) | 1.95K Increased by +0.04% | May 29, 26 |
| 2 | Vanguard Health Care Inv | 4.12M (4.63%) | 919.29K Increased by +22.29% | Mar 31, 26 |
| 3 | Fidelity® Select Biotechnology | 2.94M (3.30%) | -256.50K Decreased by -8.73% | Nov 30, 23 |
| 4 | Vanguard Total Stock Mkt Idx Inv | 2.83M (3.18%) | 11.09K Increased by +0.39% | Apr 30, 26 |
| 5 | State Street® SPDR® S&P® Biotech ETF | 2.41M (2.70%) | 19.64K Increased by +0.82% | May 29, 26 |
| 6 | iShares Russell 2000 ETF | 2.01M (2.26%) | 18.56K Increased by +0.92% | May 29, 26 |
| 7 | Vanguard US Total Market Shares ETF | 1.62M (1.81%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 8 | SPDR® S&P Biotech ETF | 1.20M (1.35%) | 2.69K Increased by +0.22% | Aug 31, 25 |
| 9 | Vanguard Small Cap Index | 1.01M (1.13%) | -4.32K Decreased by -0.43% | Apr 30, 26 |
| 10 | Vanguard Institutional Extnd Mkt Idx Tr | 955.57K (1.07%) | 8.45K Increased by +0.88% | Apr 30, 26 |
| 11 | Fidelity Select Health Care | 949.76K (1.07%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 12 | BNP Paribas US Small Cap ClassicC | 944.99K (1.06%) | 241.00 Increased by +0.03% | Apr 30, 26 |
| 13 | Belfius Equities Cure C Cap | 926.12K (1.04%) | 0.00 Increased by 0.00% | Nov 30, 25 |
| 14 | CT (Lux) American Smaller Com 9U USD | 906.88K (1.02%) | 55.03K Increased by +6.07% | Jan 31, 25 |
| 15 | Fidelity Select Pharmaceuticals Port | 853.52K (0.96%) | 0.00 Increased by 0.00% | Jul 31, 25 |
| 16 | Fidelity Select Biotechnology | 832.10K (0.93%) | 1.00K Increased by +0.12% | Apr 30, 26 |
| 17 | Fidelity Small Cap Index | 822.35K (0.92%) | 53.43K Increased by +6.50% | Mar 31, 26 |
| 18 | State Street SPDR Port S&P 600 Sm CpETF | 779.48K (0.87%) | 0.00 Increased by 0.00% | May 29, 26 |
| 19 | BNP Paribas US Small Cap Classic R | 776.48K (0.87%) | -15.64K Decreased by -2.01% | May 31, 25 |
| 20 | BGF World Healthscience A2 | 616.09K (0.69%) | 0.00 Increased by 0.00% | Feb 28, 26 |