Live feed21:02:52·107dINSIDERFilingvia QuantisnowCFO, EVP & TREASURER Peters William J covered exercise/tax liability with 1,744 shares, decreasing direct ownership by 1% to 123,786 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source