Levi & Korsinsky files class action against Altimmune for securities fraud

Two law firms, Levi & Korsinsky LLP and The Rosen Law Firm, are working together to file a class action lawsuit against Altimmune, Inc. for securities fraud. The lawsuit alleges that Altimmune made false and misleading statements to investors, causing them to suffer financial losses. Investors who purchased Altimmune securities between May 18, 2020, and August 12, 2021, are encouraged to join the lawsuit before the October 6, 2025 deadline.

The lawsuit claims that Altimmune failed to disclose important information about the company’s COVID-19 vaccine candidate, including the fact that the FDA had placed a clinical hold on the vaccine’s Investigational New Drug application. This information was allegedly withheld from investors, causing them to be unaware of the potential risks associated with investing in Altimmune. As a result, investors suffered losses when the truth about the vaccine candidate was revealed, causing Altimmune’s stock price to plummet.

The lawsuit also alleges that Altimmune made false and misleading statements about the effectiveness of its flu vaccine, FluCide. According to the lawsuit, Altimmune misrepresented the results of a Phase 2b study of FluCide, leading investors to believe that the vaccine was more effective than it actually was. When the truth about the study’s results came to light, investors suffered significant financial losses.

In addition to these allegations, the lawsuit claims that Altimmune engaged in market manipulation by artificially inflating the company’s stock price through a series of false and misleading statements. These statements allegedly misled investors into believing that Altimmune was a successful and innovative company, when in reality, it was facing serious regulatory and financial challenges.

Investors who purchased Altimmune securities between May 18, 2020, and August 12, 2021, and suffered financial losses as a result are encouraged to join the class action lawsuit. The deadline to join the lawsuit is October 6, 2025. By participating in the lawsuit, investors can seek to recoup their losses and hold Altimmune accountable for its alleged securities fraud.

The law firms Levi & Korsinsky LLP and The Rosen Law Firm are dedicated to representing investors who have been harmed by securities fraud. By filing this class action lawsuit against Altimmune, they are seeking to recover damages for investors who were misled by the company’s false and misleading statements. Investors who believe they may have been affected by Altimmune’s alleged securities fraud are urged to contact the law firms and join the lawsuit before the October 6, 2025 deadline.