NEW YORK, June 27, 2025 /PRNewswire/ -- Pomerantz LLP is investigating claims on behalf of investors of Altimmune, Inc. ("Altimmune" or the "Company") (NASDAQ: ALT). Such investors are advised to contact Danielle Peyton at [email protected] or 646-581-9980, ext. 7980.The investigation concerns whether Altimmune and certain of its officers and/or directors have engaged in securities fraud or other unlawful business practices. [Click here for information about joining the class action]On June 26, 2025, Altimm ...