ATVI SHAREHOLDER ALERT: ROSEN, TRUSTED NATIONAL TRIAL COUNSEL, Encourages Activision Blizzard, Inc. Investors with Losses to Secure Counsel Before Important October 4 Deadline in Securities Class Action – ATVI NEW YORK, Sept. 25, 2021 (GLOBE NEWSWIRE) -- WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of the securities of Activision Blizzard, Inc. (NASDAQ: ATVI) between August...