AnhCo Nguyen, EVP, Chief Sci. & Tech Officer at Atara Biotherapeutics, holds 941.40K shares in Atara Biotherapeutics (Ticker: ATRA). Most recently, AnhCo Nguyen Sold $10,746 shares of Atara Biotherapeutics on Mar 06, 2024 for an estimated value of 7.74K.