Live feed20:15:55·51dINSIDERFilingvia QuantisnowSENIOR EVP, PRODUCTION CENTER Zhou Rong was granted 39,432 units of Common Srock and covered exercise/tax liability with 2,215 shares, increasing direct ownership by 27% to 172,779 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source