Mealey's (May 6, 2016, 12:24 PM EDT) -- PASADENA, Calif. — A Ninth Circuit U.S. Court of Appeals panel on May 4 heard oral arguments in an appeal of a California federal court judge’s ruling dismissing an amended securities class action complaint for failure to properly plead scienter (Nathaniel L. Anderson v. Peregrine Pharmaceuticals Inc., et al., No. 14-55882, 9th Cir.)....