Mealey's (November 1, 2019, 1:54 PM EDT) -- SAN JOSE, Calif. — A federal judge in California on Oct. 29 ruled that the lead plaintiff in a securities class action lawsuit against a manufacturer of dental aligners and certain of its executive officers has engaged in unallowable “puzzle pleading” by failing to specify which alleged misrepresentations made by the defendants are indeed actionable under federal securities law (Xiaojiao Lu, et al. v. Align Technology Inc., et al., No. 18-6720, N.D. Calif., 2019 U.S. Dist. LEXIS 188384)....