Live feed16:01:30·421dINSIDERFilingvia QuantisnowDirector Petersen Floyd F. sold $27,986 worth of shares (1,000 units at $27.99), decreasing direct ownership by 1% to 74,409 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source