NEW YORK, May 23, 2024 /PRNewswire/ -- Levi & Korsinsky, LLP notifies investors in Altimmune, Inc. ("Altimmune" or the "Company") (NASDAQ: ALT) of a class action securities lawsuit. CLASS DEFINITION: The lawsuit seeks to recover losses on behalf of Altimmune investors who were adversely affected by alleged securities fraud between December 1, 2023 and April 26, 2024. Follow the link below to get more information and be contacted by a member of our team: https://zlk.com/pslra-1/altimmune-inc-lawsuit-submissi ...