Live feed18:38:18·408dINSIDERFilingvia QuantisnowCFO, EVP & TREASURER Peters William J covered exercise/tax liability with 4,972 shares, decreasing direct ownership by 4% to 125,258 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source