| Amount | Holding |
|---|---|
| 10.48% | AbbVie Inc |
| 5.31% | Amgen Inc |
| 4.89% | Regeneron Pharmaceuticals Inc |
| 4.39% | Biogen Inc |
| 2.86% | Seattle Genetics Inc |
| 2.51% | Alnylam Pharmaceuticals Inc |
| 2.26% | Acceleron Pharma Inc |
| 1.87% | Immunomedics Inc |
| 1.68% | Sarepta Therapeutics Inc |
| 1.61% | Neurocrine Biosciences Inc |