After Roiling Hepatitis Market, Express Scripts Eyes Cholesterol

... it tackles the cholesterol market. Shares of Amgen, based in Thousand Oaks, California , and Regeneron, based in Tarrytown, New York, slipped after Paz's comments. Amgen was little changed at $156.47 at 12:44 p.m. in New York, down from a 3 percent ...

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