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Altimmune Announces Fourth Quarter and Full-year 2025 Financial Results and Business Updates

globenewswire.com
ALT The article highlights positive developments for Altimmune, including the initiation of a Phase 3 MASH trial, FDA Breakthrough Therapy Designation for pemvidutide, and strong financial results with a substantial cash reserve. These factors suggest significant progress and future potential for the company.

Altimmune Announces Fourth Quarter and Full-year 2025 Financial Results and Business Updates Initiation of Phase 3 MASH trial planned for 2026

Pemvidutide granted FDA Breakthrough Therapy Designation in MASH

Topline data from RECLAIM Phase 2 trial of pemvidutide in alcohol use disorder (AUD) expected in third quarter 2026

Cash, cash equivalents and short-term investments of $274 million as of December 31, 2025; Balance sheet further strengthened through $75 million registered direct offering in January 2026

Webcast to be held today, March 5, 2026, at 8:30 a.m. ET

GAITHERSBURG, Md., March 05, 2026 (GLOBE NEWSWIRE) -- Altimmune, Inc. (Nasdaq: ALT), a late clinical-stage biopharmaceutical company developing pemvidutide to address serious liver diseases, today announced financial results for the fourth quarter and full year ended December 31, 2025, and provided a corporate update.

“In pemvidutide, we have a unique and differentiated compound with the potential to address critical unmet needs of patients with serious liver diseases such as MASH. We are committed to taking the necessary steps to realize its value for all of our stakeholders and have significantly progressed our efforts to strengthen our financial and operational foundation,” said Jerry Durso, President and Chief Executive Officer of Altimmune. “We remain focused on ensuring that we have the means and the capabilities to successfully execute Phase 3 development in MASH and capture the significant opportunities ahead of us. We have a number of important inflection points in 2026, most notably the upcoming initiation of our Phase 3 trial of pemvidutide in MASH, for which we are actively finalizing the study plan. Finally, we look forward to the topline data from our RECLAIM Phase 2 trial of pemvidutide in AUD, which we expect to release in the third quarter.”

Recent Highlights and Anticipated Milestones

Metabolic Dysfunction-Associated Steatohepatitis (MASH)

Alcohol Use Disorder (AUD)

Alcohol-associated Liver Disease (ALD)

Corporate Updates

Financial Results for the Three Months Ended December 31, 2025

Financial Results for the Year Ended December 31, 2025

Following the conclusion of the call, the webcast will be available for replay on the Investor Relations (IR) page of the Company’s website at www.altimmune.com. The Company has used, and intends to continue to use, the IR portion of its website as a means of disclosing material non-public information and for complying with disclosure obligations under Regulation FD.

About Pemvidutide

Pemvidutide is a novel, investigational peptide with balanced 1:1 glucagon/GLP-1 dual receptor agonist activity, in development for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). The activation of glucagon receptors results in direct effects on the liver, including reductions in liver fat, inflammation and fibrosis, while GLP-1 receptors mediate metabolic effects such as appetite suppression and weight loss.

The FDA granted Fast Track designations to pemvidutide for the treatment of MASH and AUD, as well as Breakthrough Therapy Designation for MASH. In December 2025, the Company announced 48-week data from the IMPACT Phase 2b trial in MASH. The Phase 2 RECLAIM trial in AUD and RESTORE trial in ALD were initiated in May 2025 and July 2025, respectively, and are currently ongoing.

About Altimmune

Altimmune is a late clinical-stage biopharmaceutical company developing therapies for patients with serious liver diseases. The Company’s lead candidate, pemvidutide, is a unique dual-action therapy targeting both glucagon and GLP-1 receptors in a balanced 1:1 ratio in development for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). For more information, please visit www.altimmune.com.

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Forward-Looking Statement

Any statements made in this press release related to the development or commercialization of pemvidutide, an investigational product candidate, and other business, regulatory and financial matters including without limitation, clinical trial study design, status, correspondence, results and data, including the ongoing RECLAIM and RESTORE trials, the timing of key milestones for the Company’s clinical programs, future plans or expectations for pemvidutide for the treatment of MASH, AUD and ALD, the potential benefits of Fast Track and Breakthrough Therapy Designations, including potential regulatory timeline and approval benefits, the Company’s financial position, and the prospects for receiving regulatory approval or commercializing or selling any product or drug candidates, financial results, and the impact of the changes to our leadership and governance structure, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, when or if used in this press release, the words "may," "could," "should," "anticipate," "believe," "estimate," "expect," "intend," "plan," "predict" and similar expressions and their variants, as they relate to Altimmune, Inc. may identify forward-looking statements. The Company cautions that these forward-looking statements are subject to numerous assumptions, risks, and uncertainties, which change over time. Important factors that may cause actual results to differ materially from the results discussed in the forward-looking statements or historical experience include risks and uncertainties, including risks relating to: delays in regulatory review, manufacturing and supply chain interruptions, access to clinical sites, enrollment, adverse effects on healthcare systems and disruption of the global economy; the reliability of the results of studies relating to human safety and possible adverse effects resulting from the administration of the Company's product candidates; the Company's ability to manufacture clinical trial materials on the timelines anticipated; and the success of future product advancements, including the success of future clinical trials. Further information on the factors and risks that could affect the Company's business, financial conditions and results of operations are contained in the Company's filings with the U.S. Securities and Exchange Commission, including under the heading "Risk Factors" in the Company's most recent annual report on Form 10-K, quarterly report on Form 10-Q and the Company’s other filings with the SEC, which are available at www.sec.gov.

Investor Contact:

Lee Roth

Burns McClellan

lroth@burnsmc.com

Media Contact:

Real Chemistry

altimmune@realchemistry.com