Atara Biotherapeutics, Inc. (NASDAQ:ATRA) Q1 2020 Results Conference Call May 6, 2020 4:30 PM ET Company Participants Eric Hyllengren - Investor Relations Pascal Touchon - President and Chief Executive Officer Utpal Koppikar - Chief Financial Officer Joe Newell - Chief Operations Officer A.J. Joshi - Chief Medical Officer Conference Call Participants Marc Frahm - Cowen and Company John Newman - Canaccord Genuity Salim Syed - Mizuho Securities Yigal Nochomovitz - Citigroup Tony Butler - Roth Capital Andrea ...