Globenewswireยท2025-09-21 18:58Core Viewpoint - Rosen Law Firm is reminding investors who purchased Altimmune, Inc. securities between August 10, 2023, and June 25, 2025, of the October 6, 2025, deadline to serve as lead plaintiff in a class action lawsuit [1] Group 1: Class Action Details - A class action lawsuit has been filed against Altimmune, and investors may be entitled to compensation without any out-of-pocket fees through a contingency fee arrangement [1][2] - To join the class action, investors can submit a form or contact the law firm for more information [2][5] - The lawsuit claims that Altimmune misrepresented the results of its IMPACT Phase 2b MASH trial, failing to meet a key statistical significance marker for fibrosis reduction [4] Group 2: Law Firm Credentials - Rosen Law Firm has a strong track record in securities class actions, having achieved the largest settlement against a Chinese company at the time and being ranked No. 1 for securities class action settlements in 2017 [3] - The firm has recovered hundreds of millions of dollars for investors, including over $438 million in 2019 alone [3] - Founding partner Laurence Rosen was recognized as a Titan of Plaintiffs' Bar by Law360 in 2020, and many attorneys at the firm have received accolades from Lawdragon and Super Lawyers [3]