Atara Biotherapeutics, Inc. (NASDAQ:ATRA) Q1 2021 Earnings Conference Call May 4, 2021 4:30 PM ET Company Participants Eric Hyllengren - Vice President of Investor Relations and Finance Pascal Touchon - President and Chief Executive Officer Jakob Dupont - Executive Vice President and Global Head of Research and Development Utpal Koppikar - Chief Financial Officer Joe Newell - Chief Operations Officer AJ Joshi - Chief Medical Officer Kristin Yarema - Chief Commercial Officer Conference Call Participants John ...