Live feed16:28:09·58dINSIDERFilingvia QuantisnowPresident and CEO Nguyen Anhco sold $15,237 worth of shares (2,996 units at $5.09), decreasing direct ownership by 5% to 61,978 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source