Live feed17:00:04·148dINSIDERFilingvia QuantisnowLarge owner Panacea Innovation Ltd exercised 48,737 shares at a strike of $0.00 and covered exercise/tax liability with 1 shares (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATRA· Atara Biotherapeutics Inc.Health CareOriginal source