Live feed18:04:00·579dINSIDERFilingvia QuantisnowPresident and CEO Nguyen Anhco sold $18,633 worth of shares (1,664 units at $11.20), decreasing direct ownership by 2% to 77,454 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source