(August 6, 2021, 2:09 PM EDT) -- LOS ANGELES — A shareholder of video game publisher Activision Blizzard Inc. sued the company and certain of its current and former senior executives on Aug. 3 in California federal court, alleging that the defendants violated federal securities law by concealing a culture of sexual discrimination within the company in statements made in Securities and Exchange Commission documents from 2016 to 2021....