Live feed20:28:14·506dINSIDERFilingvia QuantisnowDirector Prins Richard K sold $437,702 worth of shares (10,000 units at $43.77), gifted 410 shares and exercised 10,000 shares at a strike of $19.52, decreasing direct ownership by 1% to 30,061 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source