Live feed16:20:45·241dINSIDERFilingvia QuantisnowDirector Petersen Floyd F. sold $15,492 worth of shares (500 units at $30.98), decreasing direct ownership by 0.65% to 76,531 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source