Live feed18:45:10·394dINSIDERFilingvia QuantisnowDirector Petersen Floyd F. sold $14,190 worth of shares (500 units at $28.38), decreasing direct ownership by 0.67% to 73,909 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source