Republican tax bill makes big winners of Amgen, Gilead and other drugmakers By: MarketWatch December 05, 2017 at 12:09 PM EST Of all U.S. companies, drugmakers have some of the most cash held outside the country. Read More >> Related Stocks: AbbVie Amgen Biogen Idec Biomarin Pharmaceuticals Bristol-Myers Squibb Celgene Corp Clovis Oncology Inc Gilead Sciences Johnson & Johnson Merck & Co Pfizer Puma Biotechnology Regeneron Pharmaceuticals S&P Biotech SPDR S&P Pharmaceuticals SPDR Tesaro Inc United Therapeutic