Live feed16:19:48·307dINSIDERFilingvia QuantisnowDirector Heiden William K bought $150,515 worth of shares (100,000 units at $1.51), increasing direct ownership by 909% to 111,000 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MGNX· MacroGenics Inc.Health CareOriginal source