AnhCo Nguyen, EVP, Chief Sci. & Tech Officer at Atara Biotherapeutics, holds 898.50K shares in Atara Biotherapeutics (Ticker: ATRA). Most recently, AnhCo Nguyen Sold $42,899 shares of Atara Biotherapeutics on May 20, 2024 for an estimated value of 26.17K.