Live feed19:17:46·270dINSIDERFilingvia QuantisnowDirector Petersen Floyd F. sold $10,416 worth of shares (500 units at $20.83), decreasing direct ownership by 0.64% to 77,031 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source