Live feed20:26:41·534dINSIDERFilingvia QuantisnowSENIOR EVP, PRODUCTION CENTER Zhou Rong exercised 6,893 shares at a strike of $14.95 and sold $336,930 worth of shares (6,893 units at $48.88) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source