| 1 | AMGN | Amgen Inc. | 7.66% |
| 2 | GILD | Gilead Sciences, Inc. | 7.22% |
| 3 | VRTX | Vertex Pharmaceuticals Incorporated | 7.07% |
| 4 | REGN | Regeneron Pharmaceuticals, Inc. | 6.65% |
| 5 | ALNY | Alnylam Pharmaceuticals, Inc. | 4.64% |
| 6 | INSM | Insmed Incorporated | 3.51% |
| 7 | ARGX | argenx SE | 3.28% |
| 8 | IQV | IQVIA Holdings Inc. | 3.24% |
| 9 | NTRA | Natera, Inc. | 2.60% |
| 10 | MTD | Mettler-Toledo International Inc. | 2.52% |
| 11 | BIIB | Biogen Inc. | 2.21% |
| 12 | WAT | Waters Corporation | 2.01% |
| 13 | UTHR | United Therapeutics Corporation | 1.77% |
| 14 | ONC | BeOne Medicines AG | 1.76% |
| 15 | INCY | Incyte Corporation | 1.69% |
| 16 | ILMN | Illumina, Inc. | 1.61% |
| 17 | NBIX | Neurocrine Biosciences, Inc. | 1.21% |
| 18 | GMAB | Genmab A/S | 1.20% |
| 19 | MEDP | Medpace Holdings, Inc. | 1.14% |
| 20 | IONS | Ionis Pharmaceuticals, Inc. | 1.08% |
| 21 | RVMD | Revolution Medicines, Inc. | 1.04% |
| 22 | MDGL | Madrigal Pharmaceuticals, Inc. | 1.01% |
| 23 | BBIO | BridgeBio Pharma, Inc. | 0.97% |
| 24 | EXEL | Exelixis, Inc. | 0.96% |
| 25 | BMRN | BioMarin Pharmaceutical Inc. | 0.87% |
| View IBB holdings |
