Live feed16:11:54·955dSECFilingvia QuantisnowAmphastar Pharmaceuticals Inc. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation, Unregistered Sales of Equity Securities, Other Events, Financial Statements and ExhibitsByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source