ATRA ATARA BIOTHERAPEUTICS INC Management Changes 8-K Filing 2025 - Management Changes On March 25, 2025, Atara Biotherapeutics announced the departure of CFO Eric Hyllengren effective March 31, 2025, and appointed Yanina Grant-Huerta as Chief Accounting Officer on the same date.Get access to all SEC 8-K filings of the ATARA BIOTHERAPEUTICS INC