INVESTIGATION ALERT: The Schall Law Firm Encourages Investors in Atara Biotherapeutics, Inc. with Losses of $100,000 to Contact the Firm

The Schall Law Firm , a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors of Atara Biotherapeutics, Inc. (Atara or the Company) (NASDAQ: ATRA ) for violations of the securities laws.