Warner Bros. Appoints First-Ever Female CEO In its 96-year history, Warner Bros. has never had a woman at the helm — until now. Ann Sarnoff has been appointed the newest CEO of the company. The announcement was made on Monday. WarnerMedia CEO John Stankey WarnerMedia CEO John Stankey Sarnoff replaces former chief Kevin Tsujihara, who resigned in March following sexual misconduct allegations. Ann Sarnoff, to 'Variety' Ann Sarnoff, to 'Variety'