Live feed16:58:33·401dINSIDERFilingvia QuantisnowPresident and CEO Nguyen Anhco sold $22,156 worth of shares (3,276 units at $6.76), decreasing direct ownership by 4% to 70,847 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source