Live feed17:24:39·37dINSIDERFilingvia QuantisnowPresident and CEO Nguyen Anhco sold $47,845 worth of shares (5,241 units at $9.13), decreasing direct ownership by 4% to 137,837 units (SEC Form 4) (tax liability)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source