ATRA ATARA BIOTHERAPEUTICS INC Management Changes 8-K Filing 2024 - Leadership Changes Atara Biotherapeutics reported its financial results for Q2 2024 and announced leadership changes, including the resignation of CEO Pascal Touchon and the appointment of AnhCo Nguyen as the new CEO, effective September 9, 2024.Get access to all SEC 8-K filings of the ATARA BIOTHERAPEUTICS INC