Mealey's (March 16, 2023, 3:38 PM EDT) -- SAN FRANCISCO — Plaintiffs in a securities class action against video game developer Activision Blizzard Inc. and several of its current and former senior executives have appealed a federal judge in California’s ruling dismissing their federal securities law claims for failure to sufficiently plead any actionable misstatements or omissions or scienter, according to a docket entry in the Ninth Circuit U.S. Court of Appeals....