Live feed17:17:58·477dINSIDERFilingvia QuantisnowPresident and CEO Nguyen Anhco sold $23,307 worth of shares (3,331 units at $7.00), decreasing direct ownership by 4% to 74,123 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source