Live feed16:57:01·8mINSIDERFilingvia QuantisnowCFO, EVP & TREASURER Peters William J exercised 5,053 shares at a strike of $19.79 and sold $183,886 worth of shares (8,180 units at $22.48) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 172,846 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AMPH· Amphastar Pharmaceuticals Inc.Health CareOriginal source