The iShares Biotechnology ETF (the " Fund " ) seeks to track the investment results of an index composed of U.S.-listed equities in the biotechnology sector.
| # | Holding | Ticker | Weight |
|---|---|---|---|
| 1 | BlackRock Cash Funds: Institutional, SL Agency Shares | — | 11.6613% |
| 2 | Vertex Pharmaceuticals, Inc. | — | 8.0805% |
| 3 | Amgen, Inc. | — | 7.8279% |
| 4 | Gilead Sciences, Inc. | — |
Last synced Oct 27, 2026, 6:25 AM · Price and AUM from Yahoo Finance · Holdings from SEC N-PORT filings
| 6.8422% |
| 5 | Regeneron Pharmaceuticals, Inc. | — | 4.9064% |
| 6 | Argenx SE | — | 3.7588% |
| 7 | Alnylam Pharmaceuticals, Inc. | — | 3.1210% |
| 8 | Natera, Inc. | — | 2.8905% |
| 9 | Revolution Medicines, Inc. | — | 2.7803% |
| 10 | Biogen, Inc. | — | 2.4659% |
| 11 | Illumina, Inc. | — | 2.0690% |
| 12 | Moderna, Inc. | — | 1.9841% |
| 13 | Insmed, Inc. | — | 1.7849% |
| 14 | BeOne Medicines Ltd. | — | 1.7692% |
| 15 | Incyte Corp. | — | 1.7497% |
| 16 | United Therapeutics Corp. | — | 1.7339% |
| 17 | Roivant Sciences Ltd. | — | 1.4260% |
| 18 | Neurocrine Biosciences, Inc. | — | 1.2983% |
| 19 | Ascendis Pharma A/S | — | 1.2859% |
| 20 | Genmab A/S | — | 1.1188% |
| 21 | Exelixis, Inc. | — | 1.0334% |
| 22 | Ionis Pharmaceuticals, Inc. | — | 1.0021% |
| 23 | Bridgebio Pharma, Inc. | — | 0.9819% |
| 24 | Medpace Holdings, Inc. | — | 0.9502% |
| 25 | Madrigal Pharmaceuticals, Inc. | — | 0.9084% |
| 26 | Bio-Techne Corp. | — | 0.8594% |
| 27 | BioMarin Pharmaceutical, Inc. | — | 0.8492% |
| 28 | Charles River Laboratories International, Inc. | — | 0.8417% |
| 29 | Arrowhead Pharmaceuticals, Inc. | — | 0.8411% |
| 30 | Axsome Therapeutics, Inc. | — | 0.8219% |
| 31 | Cytokinetics, Inc. | — | 0.7916% |
| 32 | Krystal Biotech, Inc. | — | 0.7456% |
| 33 | Halozyme Therapeutics, Inc. | — | 0.7165% |
| 34 | Praxis Precision Medicines, Inc. | — | 0.6816% |
| 35 | Abivax SA | — | 0.6728% |
| 36 | Alkermes plc | — | 0.6659% |
| 37 | BioNTech SE | — | 0.6626% |
| 38 | Vaxcyte, Inc. | — | 0.6400% |
| 39 | Kymera Therapeutics, Inc. | — | 0.6361% |
| 40 | Apogee Therapeutics, Inc. | — | 0.5896% |
| 41 | Protagonist Therapeutics, Inc. | — | 0.5832% |
| 42 | Rhythm Pharmaceuticals, Inc. | — | 0.5746% |
| 43 | Repligen Corp. | — | 0.5678% |
| 44 | Spyre Therapeutics, Inc. | — | 0.5351% |
| 45 | Bruker Corp. | — | 0.5215% |
| 46 | PTC Therapeutics, Inc. | — | 0.5097% |
| 47 | Nuvalent, Inc., Class A | — | 0.5029% |
| 48 | Twist Bioscience Corp. | — | 0.4781% |
| 49 | Tempus AI, Inc., Class A | — | 0.4772% |
| 50 | Mirum Pharmaceuticals, Inc. | — | 0.4527% |