| 1 | AMGN | Amgen Inc. | 12.48% |
| 2 | GILD | Gilead Sciences, Inc. | 11.82% |
| 3 | VRTX | Vertex Pharmaceuticals Incorporated | 9.32% |
| 4 | REGN | Regeneron Pharmaceuticals, Inc. | 5.78% |
| 5 | INSM | Insmed Incorporated | 5.18% |
| 6 | NTRA | Natera, Inc. | 5.16% |
| 7 | ARGX | argenx SE | 5.02% |
| 8 | IQV | IQVIA Holdings Inc. | 4.76% |
| 9 | ONC | BeOne Medicines AG | 3.81% |
| 10 | ALNY | Alnylam Pharmaceuticals, Inc. | 3.78% |
| 11 | UTHR | United Therapeutics Corporation | 3.59% |
| 12 | BIIB | Biogen Inc. | 3.54% |
| 13 | ICLR | ICON Public Limited Company | 3.17% |
| 14 | ILMN | Illumina, Inc. | 3.13% |
| 15 | NBIX | Neurocrine Biosciences, Inc. | 2.43% |
| 16 | EXAS | Exact Sciences Corporation | 2.30% |
| 17 | INCY | Incyte Corporation | 2.21% |
| 18 | BNTX | BioNTech SE | 2.01% |
| 19 | MRNA | Moderna, Inc. | 1.82% |
| 20 | QGEN | Qiagen N.V. | 1.59% |
| 21 | TECH | Bio-Techne Corporation | 1.53% |
| 22 | TEM | Tempus AI, Inc. | 1.52% |
| 23 | CRL | Charles River Laboratories International, Inc. | 1.43% |
| 24 | RGEN | Repligen Corporation | 1.34% |
| 25 | BMRN | BioMarin Pharmaceutical Inc. | 1.26% |
| View BBH holdings |