NEW YORK, May 16, 2024 /PRNewswire/ -- Pomerantz LLP announces that a class action lawsuit has been filed against Altimmune, Inc. ("Altimmune" or the "Company") (NASDAQ: ALT) and certain officers. The class action, filed in the United States District Court for the District of Maryland, Southern Division, and docketed under 24-cv-01315, is on behalf of a class consisting of all persons and entities other than Defendants that purchased or otherwise acquired Altimmune securities between December 1, 2023 and Ap ...