Release – GeoVax Highlights 2026 as a Pivotal Year for Progress

Research News and Market Data on GOVX

Management Highlights 2026 as a Portfolio-Wide Inflection Year Driven by Regulatory De-Risking, Clinical Readouts, and Scalable Manufacturing

ATLANTA, GA – January 20, 2026 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing vaccines and immunotherapies for infectious diseases and cancer, today provided a post-conference update following the J.P. Morgan Healthcare Conference Week in San Francisco, where, during investor, banker and partner engagements, the Company outlined 2026 as a pivotal inflection year driven by multiple late-stage clinical, regulatory, and manufacturing milestones across its diversified portfolio.

“GeoVax enters 2026 with increasing clarity on execution, prioritization, and value creation,” said David Dodd, Chairman & CEO of GeoVax. “With GEO-MVA representing an expedited path to potential commercialization, alongside multiple clinical data readouts relative to GEO-CM04S1, our multi-antigen COVID-19 vaccine and, the anticipated initiation of the Phase 2 Gedeptin® trial, we believe that this year will provide a meaningful convergence of regulatory, clinical, and manufacturing catalysts for the Company.”

Dodd added, “We were particularly encouraged by the level of interest and the quality of discussions we had during JP Morgan/Biotech Showcase with investors, potential strategic partners, and global health stakeholders. The feedback we received around GeoVax’s progress, our differentiated platforms, and our regulatory momentum, especially for GEO-MVA, reinforces our confidence that 2026 has the potential to be a pivotal breakout year for the Company.”

GEO-MVA (Mpox & Smallpox): Expedited Path to Commercialization in a Currently Constrained Market

GEO-MVA is GeoVax’s most advanced program and represents the Company’s near-term opportunity for potential commercialization. The global Mpox and smallpox vaccine market remains constrained by reliance on a single foreign manufacturer whose production capacity has proven insufficient to meet sustained worldwide demand, particularly during periods of expanding or recurring outbreaks. This structural supply imbalance underscores both the commercial opportunity and the public health imperative for an additional, scalable MVA vaccine source.

Following receipt of supportive Scientific Advice from the European Medicines Agency (EMA), GeoVax has regulatory alignment on a single, pivotal Phase 3 immunobridging study versus the approved MVA vaccine. This guidance supports an expedited development pathway and meaningfully de-risks the regulatory route toward potential approval and revenue generation.

Key 2026 milestones for GEO-MVA include:

  • Initiation of the pivotal Phase 3 immunobridging trial, expected in the second half of 2026
  • Continued engagement with European and global health authorities seeking to diversify Mpox and smallpox vaccine supply in light of ongoing global demand pressures
  • Advancement toward a U.S.-sourced vaccine supply model addressing both civilian public health needs and biodefense preparedness

With GEO-MVA clinical material manufactured and fill-finish completed, the program is positioned to transition from development into Phase 3 execution in 2026, reinforcing its role as GeoVax’s lead value driver and shortest path to potential commercialization.

Gedeptin® (Oncology): Advancing Toward Combination-Driven Value Inflection

In oncology, GeoVax continues to advance Gedeptin®, its gene-directed enzyme prodrug therapy, following encouraging safety and tumor-response signals from prior clinical studies.

Key 2026 inflection points include:

  • Publication of results from the recently completed Gedeptin trial
  • Initiation of a Phase 2 study evaluating Gedeptin in combination with an immune checkpoint inhibitor as a potential first-line therapy for head and neck cancer by year-end
  • Updates on preclinical evaluations of Gedeptin in combination with immune checkpoint inhibitors, informing potential expansion into additional solid tumor indications.

GeoVax continues to pursue a partnership-oriented development strategy for Gedeptin, designed to advance the program efficiently while preserving long-term upside.

GEO-CM04S1 (COVID-19): Multiple Clinical Data Readouts

GeoVax’s next-generation COVID-19 vaccine, GEO-CM04S1, continues to advance as a differentiated, multi-antigen (Spike + Nucleocapsid) candidate designed to address unmet needs in immunocompromised and high-risk populations inadequately served by current single-antigen vaccines.

During 2026, the Company expects:

  • Clinical data readouts from ongoing Phase 2 trials
  • Continued evaluation of GEO-CM04S1 as both a primary and booster vaccine in immunocompromised populations
  • Additional translational insights supporting future regulatory and partnering discussions

AGE1 Continuous Cell-Line Manufacturing: Advancing MVA Scalability and Supply

The AGE1 continuous avian cell-line manufacturing process has the potential to significantly improve how MVA-based vaccines are produced by addressing historical scalability and supply constraints. By enabling continuous, cell-line–based production, AGE1 provides a more reliable and scalable alternative to traditional chicken embryo fibroblast–dependent methods.

AGE1 is directly integrated into the GEO-MVA program, strengthening GeoVax’s ability to support sustained commercial supply, rapid scale-up, and domestic manufacturing – capabilities increasingly critical as global demand for Mpox and smallpox vaccines exceeds available supply.

Manufacturing progress anticipated during 2026 includes:

  • Continued optimization of the AGE1 process to support commercial-scale GEO-MVA production
  • Advancement of AGE1 as a scalable, U.S.-based manufacturing solution aligned with pandemic preparedness and supply-chain resilience priorities

Positioned for Execution

Collectively, these milestones reflect GeoVax’s transition into a catalyst-rich period where multiple programs are advancing in parallel toward late-stage development, regulatory decision points, and potential commercialization pathways.

“As we emphasized during JP Morgan/Biotech Showcase Week, GeoVax has moved beyond platform validation,” Dodd added. “We are now executing against clearly defined milestones, with GEO-MVA leading the portfolio and multiple additional programs advancing toward value-inflection events in 2026 and beyond.”

Dodd concluded, “As we move through 2026, GeoVax is entering a phase where years of platform development, regulatory engagement, and manufacturing investment begin to translate into tangible outcomes. With GEO-MVA advancing along a clearly defined path toward commercialization, multiple clinical data readouts expected across our COVID-19 and oncology programs, and a scalable manufacturing foundation in place, we believe GeoVax is well positioned for a pivotal year of execution and value creation.”

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax to Raise Approximately $3.2 Million of Gross Proceeds in Public Offering

Research News and Market Data on GOVX

Atlanta, GA, December 19, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing immunotherapies and vaccines against cancer and infectious diseases, today announced that it has entered into definitive securities purchase agreements with several institutional and individual investors for the purchase and sale of approximately 13.2 million units, each comprised of one share of the Company’s common stock and warrants, as described below, to purchase shares of the Company’s common stock, at a price of $0.245 per unit in a public offering. The Company will issue warrants to purchase up to approximately 26.5 million shares of common stock. The warrants will have an exercise price of $0.245 per share, will be exercisable immediately following the date of issuance and will have a term of five years following the date of issuance.

Roth Capital Partners is acting as the exclusive placement agent for the offering.

The gross proceeds to the Company from this offering are expected to be approximately $3.2 million, before deducting the placement agent’s fees and other offering expenses payable by the Company. The Company intends to use the net proceeds from this offering for working capital and general corporate purposes. The closing of the offering is expected to occur on or about December 22, 2025, subject to the satisfaction of customary closing conditions.

The shares in the offering described above are being offered by the Company pursuant to a registration statement on Form S-1 (File No. 333-292127) previously filed with the Securities and Exchange Commission (the ‘SEC’) and declared effective by the SEC on December 19, 2025. The offering is being made only by means of a prospectus, including a prospectus supplement, forming a part of the effective registration statement, relating to the offering that will be filed with the SEC. Electronic copies of the final prospectus supplement and accompanying prospectus may be obtained, when available, on the SEC’s website at http://www.sec.gov or by contacting Roth Capital Partners, LLC at 888 San Clemente Drive, Newport Beach CA 92660, by phone at (800) 678-9147 or by accessing the SEC’s website, www.sec.gov.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy any of the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Receives Formal EMA Scientific Advice Supporting Pivotal Phase 3 Immunobridging Trial for GEO-MVA

Research News and Market Data on GOVX

EMA Concurrence Enables Acceleration Toward Phase 3 Initiation and Represents a Major Milestone on GeoVax’s Path to Commercialization

ATLANTA, GA – December 18, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing vaccines and immunotherapies for infectious diseases and cancer, today announced that it has received formal Scientific Advice (SA) from the European Medicines Agency (EMA) confirming regulatory alignment on the Company’s proposed pivotal Phase 3 immunobridging trial design for GEO-MVA, its Modified Vaccinia Ankara (MVA)-based vaccine candidate for the prevention of Mpox and smallpox.

The EMA’s feedback concurs with GeoVax’s proposed strategy to evaluate GEO-MVA through a single, pivotal Phase 3 immuno-bridging study versus the approved MVA vaccine, Imvanex®, and supports the Company’s plan to proceed directly into this trial without the need for additional Phase 1 or Phase 2 clinical studies. Receipt of this formal Scientific Advice represents a significant regulatory milestone and enables GeoVax to accelerate operational planning toward implementation and initiation of the Phase 3 program, currently projected to begin in the second half of 2026.

“This formal Scientific Advice from EMA represents a pivotal step forward for GEO-MVA and meaningfully de-risks our regulatory path in Europe,” said David Dodd, Chairman and Chief Executive Officer of GeoVax. “EMA’s concurrence positions GeoVax to move efficiently toward a single, registrational Phase 3 study. This is a major milestone on our path toward commercialization.”

The Scientific Advice confirms that non-inferiority immunogenicity endpoints are acceptable to support a future Marketing Authorization Application (MAA) and that GeoVax’s proposed clinical safety database is sufficient to support registration, assuming successful trial outcomes. Importantly, EMA’s feedback provides clarity and confidence across proposed clinical and quality dimensions, allowing the Company to focus on execution rather than redesign of its development strategy.

The receipt of this advice follows GeoVax’s previous announcement of favorable preliminary EMA guidance announced in June 2025 and marks the transition from regulatory alignment to regulatory execution. Together, these milestones substantially strengthen GEO-MVA’s development profile and reinforce its potential role in expanding global Mpox and smallpox vaccine supply beyond the current single-supplier paradigm.

“With formal EMA Scientific Advice now in hand, GEO-MVA moves from a conceptual regulatory pathway to a clearly defined and executable development plan,” Dodd added. “As global health authorities continue to emphasize preparedness, resilience, and diversification of vaccine supply, we believe GEO-MVA is well positioned to play an important role.”

About GEO-MVA

GEO-MVA is GeoVax’s Modified Vaccinia Ankara (MVA)-based vaccine candidate being developed for the prevention of Mpox and smallpox. GEO-MVA leverages the well-characterized MVA platform and is designed to support both civilian public health needs and broader preparedness objectives.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces Publication of Study Demonstrating Cross-Variant Protection Using the Multi-Antigen GEO-CM04S1 Vaccine

Research News and Market Data on GOVX

Animal Models Show Full Protection Against Omicron Variant Despite Absence of Neutralizing Antibodies, Highlighting Critical Importance of T-cell Immunity for Next-generation COVID-19 Vaccines

ATLANTA, GA – December 18, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies against infectious diseases and cancer, today announced the publication of a peer-reviewed article in Frontiers in Immunology titled: “Multi-antigen MVA-vectored SARS-CoV-2 vaccine, GEO-CM04S1, induces cross-protective immune responses to ancestral and Omicron variants.”

The study provides definitive preclinical evidence that GeoVax’s multi-antigen COVID-19 vaccine candidate, GEO-CM04S1, delivers full cross-variant protection, driven predominantly by robust T-cell responses, even in the absence of neutralizing antibodies.

The findings reinforce the design philosophy behind GeoVax’s MVA-based, multi-antigen platform and provide mechanistic insight that is increasingly relevant for immunocompromised individuals, who often fail to respond optimally to the first-generation COVID-19 vaccines.

Study Highlights: Multi-Antigen Breadth and T-Cell Immunity Drive Protection

The study evaluated GEO-CM04S1 in the K18-hACE2 lethal mouse model, comparing immune responses and efficacy to experimental MVA-vectored vaccine constructs expressing spike alone (S) or nucleocapsid alone (N). Key findings include:

  • Full protection against both ancestral B.1 and Omicron XBB.1.5: Only GEO-CM04S1 (S+N) maintained 100% survival, preventing weight loss, severe lung inflammation, and virus replication in both upper and lower airways.
  • Protection against XBB.1.5 occurred despite no detectable neutralizing antibodies: Neutralization assays showed zero detectable neutralizing activity against XBB.1.5 in any group – yet GEO-CM04S1-vaccinated animals were fully protected. This indicates immunity was not antibody-dependent.
  • CD4+ T cells were identified as the critical effector of protection: Antibody-mediated depletion studies showed:
    • Loss of CD4+ T cells eliminated vaccine protection, leading to high viral loads and severe lung pathology.
    • Depletion of CD8+ T cells or B cells had minimal impact on vaccine efficacy.
    • These results confirm T cell responses as the critical component of vaccine-induced immune responses capable of providing cross-variant protection.
  • Multi-antigen design (Spike + Nucleocapsid) outperformed spike-only vaccines: GEO-CM04S1 delivered broader and more durable immunity than spike-only MVA vaccines – especially when spike was mismatched to circulating variants.

“This publication provides  significant evidence supporting the unique value of a multi-antigen designed to induce high levels of T-cell responses and validates the core design principles that differentiate our vaccine from first-generation, spike-only approaches,” said Mark Newman, PhD, Chief Scientific Officer of GeoVax.

Dr. Newman added: “These findings  support the belief that the GEO-CM04S1 vaccine could be a highly relevant product for use in immunocompromised patients,  because of the ability to protect through strong, multi-antigen T-cell immunity.”

“This peer-reviewed study provides a compelling scientific foundation for the ongoing clinical advancement of GEO-CM04S1,” stated David Dodd, Chairman & CEO of GeoVax. “As SARS-CoV-2 continues to evolve, it is increasingly clear that next-generation vaccines must move beyond spike-only strategies. GEO-CM04S1 demonstrates the breadth, durability, and variant-proof characteristics that global public-health leaders have been calling for.”

Dodd continued: “More than 40 million immunocompromised individuals in the U.S. alone remain underserved by existing vaccines. The results published in Frontiers in Immunology strengthen the rationale behind our multiple ongoing Phase 2 studies in immunocompromised patient populations.”

About GEO-CM04S1

GEO-CM04S1 is an MVA-vectored vaccine encoding both the Spike (S) and Nucleocapsid (N) proteins from SARS-CoV-2, designed to induce:

  • Strong CD4+ and CD8+ T-cell responses
  • Durable immunity supported by conserved N-protein recognition
  • Multi-antigen breadth that mitigates loss of protection as the virus mutates

GEO-CM04S1 is currently being evaluated in multiple Phase 2 clinical trials in immunocompromised patients, including individuals with hematologic cancers and chronic lymphocytic leukemia.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces Completion of GEO-MVA Fill-Finish, Supporting Phase 3 Immunobridging Clinical Trial Start-Up in Early 2026

Research News and Market Data on GOVX

Milestone Advances Clinical Readiness and Reinforces Urgent U.S. Need for Domestic MVA Vaccine Capacity

ATLANTA, GA – December 17, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing vaccines and immunotherapies against infectious diseases and cancer, today announced the successful completion of fill-finish for the initial clinical batch of GEO-MVA, its next-generation Mpox/smallpox vaccine. The product has now entered final release evaluation, the concluding quality-control and compliance process required before shipment for clinical use, positioning the Company for Phase 3 immunobridging trial start-up activities in Q1 2026.

Clinical and Regulatory Milestone

Fill-finish – the sterile, cGMP-regulated process of filling, sealing, and packaging vaccine vials – marks the last manufacturing step before a vaccine may enter clinical study supply channels. With fill-finish complete and GEO-MVA now undergoing final release evaluation, GeoVax has moved into the final pre-clinical-deployment phase of its EMA-aligned clinical program.

In June 2025, the European Medicines Agency (EMA) Scientific Advice confirmed that a single Phase 3 immunobridging study demonstrating immune comparability to the approved MVA vaccine, Imvanex®, would be sufficient to evaluate GEO-MVA’s efficacy. This provides a clear, accelerated regulatory path to licensure.

Strengthening U.S. and Global Pandemic Preparedness

This milestone coincides with increasing Mpox activity globally – including expanding Clade I outbreaks in Africa and emerging cases in the United States – exposing vulnerabilities associated with global dependence on a sole foreign MVA vaccine supplier. GEO-MVA is designed to expand supply, diversify sources, and strengthen biodefense infrastructure.

David Dodd, Chairman & CEO of GeoVax, commented: “Completion of fill-finish for GEO-MVA and progression into final release evaluation represent critical steps toward Phase 3 initiation and a pivotal advancement in our mission to support U.S. and global health security. America cannot remain dependent on a single foreign manufacturer for MVA-based biodefense vaccines. GEO-MVA provides a clear path toward a diversified and domestically controlled second-source supply – an essential component of modern pandemic preparedness. This milestone also underscores the strong operational progress we are delivering for our shareholders and partners.”

About GEO-MVA

GEO-MVA is a Modified Vaccinia Ankara (MVA)-based Mpox/smallpox vaccine designed to expand global vaccine availability at a time of constrained stockpiles and growing demand for resilient, scalable, and geographically diversified manufacturing capacity. GEO-MVA is a core asset within GeoVax’s broader MVA platform, which also includes next-generation COVID-19 and other infectious disease programs.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces British Journal of Haematology Publication Highlighting Superior T-Cell Responses of GEO-CM04S1 in CLL Patients

Research News and Market Data on GOVX

DSMB Ends Comparator Arm; Trial Proceeds Exclusively With GEO-CM04S1 Following mRNA Vaccine’s Failure to Meet Primary Endpoint

Phase 2 Data Reinforce GEO-CM04S1 as an Important Next-generation Vaccine Candidate for the 40 Million U.S. and 400 Million Global Immunocompromised Patients Underserved by First-generation COVID-19 Vaccines

ATLANTA, GA – December 15, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies, today announced the publication of interim Phase 2 clinical data on its next-generation COVID-19 vaccine in patients with chronic lymphocytic leukemia (CLL).  

The Research Letter in the British Journal of Haematology reports that GEO-CM04S1 met the study’s primary immunologic endpoint, generating significantly stronger and more durable SARS-CoV-2–specific T-cell responses than BNT162b2 (Pfizer-BioNTech) in patients with chronic lymphocytic leukemia (CLL) – a population known for poor vaccine responsiveness.

Importantly, following interim analysis, the trial’s Data and Safety Monitoring Board (DSMB) ruled to discontinue the randomized, double-blind comparator arm after the mRNA vaccine failed to meet the predefined primary immunogenicity endpoint. Enrollment is now proceeding exclusively in a single-arm cohort receiving GEO-CM04S1, as previously described in GeoVax’s clinical update at the European Hematology Association (EHA) 2025 Conference.

GEO-CM04S1’s superior performance in enhancing cellular immune response against SARS-CoV-2 in individuals with CLL, a patient population that generally responds sub optimally to vaccines designed to induce humoral (antibody) responses, underscores its potential to fill a protection gap for profoundly immunocompromised patients. More than 40 million adults in the U.S. and 400 million globally have some degree of compromised immunity, many of whom fail to mount meaningful responses to currently authorized COVID-19 vaccines. GEO-CM04S1 is specifically designed to address this gap through its dual-antigen (Spike + Nucleocapsid), MVA-based platform, which promotes robust, durable T-cell responses that are less impacted by immune dysfunction and viral variation.

Phase 2 Study Overview (NCT05672355)

  • CLL patients previously vaccinated with mRNA vaccines
  • 31 enrolled; 27 evaluable for primary analysis
  • Primary endpoint: ≥3-fold rise in antigen-specific IFN-γ–secreting T cells at Day 56
  • Assessments: T-cell responses, binding/neutralizing antibodies, safety
  • No Grade ≥3 adverse events reported

Key Findings Published in BJH

1. GEO-CM04S1 achieved superior T-cell responses

  • 40% of GEO-CM04S1 recipients met the primary endpoint vs. 14.3% for BNT162b2
  • Higher Spike-specific IFN-γ responses at Days 28, 56, and 84

2. Durable activation of Nucleocapsid-specific T cells

  • ~10-fold higher N-specific CD4 T-cell activation vs. BNT162b2
  • Responses maintained through Day 180

3. Broader immune engagement in spite of CLL-associated humoral defects

  • GEO-CM04S1 generated sustained N-IgG and a correlation between N-specific antibodies and T-cell activation
  • mRNA vaccination produced higher early RBD-IgG titers but limited cellular immunity

Kelly T. McKee, MD, MPH, Chief Medical Officer, stated: “These results demonstrate GEO-CM04S1’s ability to address the immune limitations of CLL patients by inducing strong, durable T-cell responses to both spike and nucleocapsid proteins of SARS-CoV-2. The DSMB’s decision to discontinue the comparator arm further validates the vaccine’s clinical relevance for immunocompromised individuals.”

David Dodd, Chairman & CEO, added: “With more than 40 million immunocompromised Americans, many of whom lack durable protection from first-generation vaccines, GEO-CM04S1 represents a purpose-built solution for high-risk patients. This peer-reviewed publication strengthens our regulatory and partnering strategy as we advance toward potential commercialization.”

Medical and Commercial Significance

The findings published in BJH, combined with the DSMB’s action, reinforce the value of the differentiated profile of GEO-CM04S1 across multiple dimensions:

  1. Critical unmet need: Immunocompromised individuals remain vulnerable and, in many cases, sub optimally protected from the threat of SARS-CoV-2.
  2. Multi-antigen design: GEO-CM04S1’s dual-antigen design stimulates immune responses that appear to be more durable and variant-resilient than single-antigen mRNA approaches.
  3. These segments represent a $30B+ annual potential commercial market.

About GEO-CM04S1

GEO-CM04S1 is a dual-antigen MVA-vectored COVID-19 vaccine being evaluated in multiple Phase 2 trials, including a primary vaccination for immunocompromised individuals, and a booster vaccination for CLL patients.

The vaccine has generated robust immune responses in difficult-to-vaccinate populations including CAR-T and stem-cell transplant recipients, who typically fail to respond well to first-generation vaccines.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Addresses Identification of New Mpox Variant

Research News and Market Data on GOVX

Continued Mpox Evolution Underscores Dependence on a Single Global Supplier, Reinforcing the Critical Importance of GeoVax’s Accelerated GEO-MVA Program

Atlanta, GA – December 11, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies for infectious diseases and cancer, today addressed reports from UK health authorities confirming the emergence of a newly evolved “recombinant” Mpox strain. Early analysis indicates the variant contains genetic elements from both Clade I and Clade II Mpox viruses, highlighting the ongoing evolution of the pathogen and the potential implications for disease severity, transmissibility, and vaccine readiness.

The discovery of this recombinant strain comes at a time when global Mpox vaccine supply remains concentrated in a single manufacturer – creating risks around preparedness, surge capacity, and geopolitical access. GEO-MVA is uniquely positioned in developing an expanded supply of MVA vaccine, bolstering domestic and global resilience.

GeoVax Highlights Strategic and Public Health Implications

  • The virus continues to evolve. Simultaneous circulation of multiple Mpox clades creates ongoing risk for recombination and changing outbreak behavior.
  • Global supply remains dangerously concentrated. A single-vendor global supply model heightens vulnerability for stockpile readiness and equitable vaccine distribution.
  • GEO-MVA is progressing as the first U.S.-based Mpox/smallpox vaccine. GeoVax aims to deliver a scalable, domestically manufactured solution that supports national biodefense and global supply diversification.
  • Clinical and manufacturing progress advancing: Final fill-finish activities of GEO-MVA are scheduled to be completed by year-end, with first-in-human studies planned upon regulatory clearance.

“The emergence of a recombinant Mpox strain is a timely reminder that viral evolution does not pause,” said David Dodd, Chairman & CEO of GeoVax. “With global vaccine supply dependent on a single provider, the risks to preparedness, national security, and market stability are clear. We are developing GEO-MVA to meet this strategic need – a U.S.-manufactured Mpox vaccine capable of supporting both domestic requirements and global demand.”

Favorable EMA Development Pathway Accelerates GEO-MVA

GeoVax recently received positive Scientific Advice from the European Medicines Agency (EMA) confirming that the Company may proceed directly to a single Phase 3 immuno-bridging trial with no Phase 1 or Phase 2 trials required to support a Marketing Authorization Application (MAA) for GEO-MVA. The EMA’s Committee for Medicinal Products for Human Use (CHMP) also affirmed the adequacy of GeoVax’s proposed nonclinical package and agreed with the Company’s immunogenicity endpoints for demonstrating non-inferiority to the licensed comparator vaccine.

This guidance provides a significant acceleration of the regulatory timeline, a de-risked development path, and a potentially earlier commercialization opportunity across all 27 EU member states. As reinforced in a subsequent regulatory communication, the EMA’s pathway positions GeoVax for expedited approval, reduced development cost, and earlier revenue generation as the Company advances GEO-MVA toward Phase 3.

About GEO-MVA

GEO-MVA is GeoVax’s next-generation Modified Vaccinia Ankara (MVA)-based Mpox/smallpox vaccine, engineered to provide a durable, broad immune response with both civilian and biodefense (“dual-use”) applicability. Key attributes include:

  • U.S.-Based Manufacturing Pathway: GEO-MVA is being developed as the first U.S.-manufactured Mpox/Smallpox vaccine, reducing reliance on foreign suppliers and supporting national security priorities.
  • Dual-Use Capability: Designed to meet both public health needs and Strategic National Stockpile requirements.
  • Robust Multi-Antigen Immunity: MVA enables broad antigen presentation to support strong humoral and T-cell responses.
  • Scalable Modern Production: GeoVax’s planned transition to AGE1 continuous cell-line manufacturing is expected to expand output, reduce cost, and support global self-sufficiency.
  • Regulatory Momentum: EMA’s streamlined approach provides a clear, accelerated pathway for clinical advancement and commercialization.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces Addition of Renowned Global Experts to its Scientific Advisory Board

Research News and Market Data on GOVX

Newly Appointed Members Include Leaders in Vaccine Immunology, T-Cell Science, and Clinical Research

Atlanta, GA -December 10, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies for infectious diseases and cancers, today announced an update to its Scientific Advisory Board (SAB), welcoming internationally recognized experts whose work spans vaccine design, T-cell immunology, viral pathogenesis, and immunocompromised-host medicine.

This strategic expansion is designed to support GeoVax’s current and future development efforts with MVA and its multi-antigen MVA vector platform for vaccines targeting biothreat pathogens and vulnerable or currently underserved populations such as those from low- and middle-income countries, and immunocompromised patients. Future additions to the GeoVax SAB will support its oncology immunotherapy pipeline.

Newly Announced SAB Members

Joining Prof. Teresa Lambe, PhD, OBE, FMedSci – Calleva Head of Vaccine Immunology, Oxford Vaccine Group / Jenner Institute, University of Oxford, whose appointment to the GeoVax SAB was previously announced, are the following:

  • Dr. Alessandro Sette, Dr of Biological Sciences – Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology

An authority in T-cell epitope mapping and immune correlates of protection, Dr. Sette leads the NIH Immune Epitope Database (IEDB) and is widely recognized by defining T-cell immunity across SARS-CoV-2, Mpox, and Ebola.

  • Prof. Lance Turtle, PhD, MBBS, FRCP, DTMH – Chair in Immunity and Infectious Diseases, University of Liverpool / Royal Liverpool Hospital

A clinician-scientist specializing in viral pathogenesis and post-infection immune recovery, Prof. Turtle’s research provides key translational insights into long-term immunity and emerging pathogen preparedness.

  • Prof. Thushan I. de Silva, MBBS, PhD, MRCP – Professor of Infectious Diseases and Immunology, University of Sheffield

An expert in human viral immunology, vaccine responses, and global immunosurveillance, Prof. de Silva leads studies across Europe, Asia, and Africa evaluating population-level vaccine immunity and viral evolution.

  • Dr. Joshua A. Hill, MD, FIDSA – Associate Professor, University of Washington School of Medicine / Fred Hutchinson Cancer Center

A leading infectious-disease expert focusing on vaccine response in immunocompromised and transplant patients, Dr. Hill’s work aligns with GeoVax’s emphasis on protecting high-risk, under-served populations.

David Dodd, GeoVax Chairman & CEO, commented: “By assembling this exceptional team of global experts, we are further strengthening GeoVax’s position at the forefront of vaccine innovation. Their combined experience – from antigen design to human immunology and clinical translation – perfectly aligns with our mission to deliver durable, broad-spectrum protection to both global and immunocompromised populations.”

Dr. Kelly McKee, Chief Medical Officer, added: “The addition of these renowned experts ensures that our clinical strategy is guided by cutting-edge immunology insight and global research expertise. Their collaboration will be instrumental as GeoVax advances vaccines and immunotherapies designed to protect those who remain most vulnerable – particularly those in low and middle income countries (LMICs), and immunocompromised patients who have been underserved by traditional approaches or currently available vaccines”

Dr. Mark Newman, Chief Scientific Officer, stated: “This expanded SAB strengthens multiple aspects of our R&D platform. With direct input from some of the world’s most respected scientific leaders, we can ensure that our vaccine and immunotherapy candidates deliver real-world impact.”

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces Issuance of U.S. Patent Covering Enhanced Therapeutic Use of Gedeptin® Gene Therapy

Research News and Market Data on GOVX

  • Last updated: 09 December 2025
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Patent Protects Novel Application of Gedeptin Therapy Across Multiple Solid Tumor Types; Supports Expansion of Gedeptin Product Platform 

ATLANTA, GA – December 9, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies against cancers and infectious diseases, today announced the issuance of U.S. Patent No. 12,453,760, titled “Enhanced Therapeutic Usage of a Purine Nucleoside Phosphorylase or Nucleoside Hydrolase Prodrug”, by the United States Patent and Trademark Office (USPTO). The patent provides composition-of-matter and method-of-use protection for GeoVax’s Gedeptin® platform in combination with targeted delivery approaches for solid tumors, including head and neck cancer.

The newly issued patent, which extends through 2045, enhances the Company’s intellectual property estate for Gedeptin and its use across a range of solid tumor cancers — consolidating GeoVax’s leadership in the field of targeted gene therapies and supporting ongoing clinical development plans.

“The issuance of this patent marks an important milestone in the advancement and protection of GeoVax’s oncology pipeline,” said David A. Dodd, Chairman and Chief Executive Officer of GeoVax. “It underscores our commitment to progressing Gedeptin, both as a monotherapy and in synergistic combination with other oncology treatment approaches as we work to deliver meaningful treatment options for patients with difficult-to-treat solid tumors.”

The Company is actively preparing for a Phase 2 clinical trial evaluating Gedeptin as a first-line therapy in combination with pembrolizumab (Keytruda®) in resectable head and neck cancer, in line with the recent shift toward neoadjuvant checkpoint strategies. Additional preclinical programs are assessing Gedeptin across other tumor types, including breast and cutaneous cancers.

About Gedeptin®

Gedeptin is a gene-directed enzyme prodrug therapy (GDEPT) designed for targeted use in solid tumors. Delivered via a non-replicating adenoviral vector encoding purine nucleoside phosphorylase (PNP) and followed by systemic fludarabine, Gedeptin generates localized cytotoxic activity within tumors while minimizing systemic toxicity. The therapy has demonstrated safety and disease control in a multi-center Phase 1/2 trial in patients with advanced head and neck cancer and has received FDA Orphan Drug Designation for oral and pharyngeal cancers.

GeoVax plans to advance Gedeptin into a Phase 2 trial in combination with pembrolizumab (Keytruda®) as a neoadjuvant regimen for resectable head and neck squamous cell carcinoma, supported by recent clinical data validating the role of immune checkpoint inhibitors in perioperative settings. Additional preclinical work is underway to assess Gedeptin combinations across other solid tumors.

Key Advantages of Gedeptin

  • Localized, tumor-selective cytotoxicity
  • Tumor agnostic – expansion potential across multiple solid tumors
  • Synergistic potential with checkpoint inhibitors
  • Favorable safety profile and orphan drug designation
  • Strong patent protection through 2045

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces JCO Oncology Advances Publication Highlighting Favorable Safety and Evidence of Disease Stability of Gedeptin® in Recurrent Head & Neck Cancer

Research News and Market Data on GOVX

  • Last updated: 08 December 2025
  • Created: 08 December 2025
  • Hits: 179

Phase 1/2 trial confirms safety with repeated dosing supporting further development in early-stage disease and combination treatment settings

ATLANTA, GA – December 8, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing novel immunotherapies and vaccines for solid tumor cancers and infectious diseases, today announced the publication of a peer-reviewed article in JCO Oncology Advances, the American Society of Clinical Oncology’s (ASCO) open-access journal.

The manuscript, titled “A Phase 1/2 Study of Intratumoral Ad/PNP (Gedeptin) with Fludarabine Phosphate in Subjects with Recurrent Head and Neck Cancer”, reports findings from a multi-center clinical trial evaluating repeated cycles of Gedeptin®, a gene-directed enzyme prodrug therapy (GDEPT), administered via intratumoral injection followed by systemic fludarabine.

Study Overview: Evaluating Repeated Dosing in a Highly Refractory Population

The Phase 1/2 trial enrolled patients with recurrent head and neck cancers who had exhausted all standard treatment options and had undergone a median of four prior lines of systemic therapy. Patients received therapy on a 28 day schedule, each consisting of intratumoral Gedeptin injections followed by intravenous fludarabine.

Key results from the publication include:

  • Acceptable safety profile with no new safety signals: Serious adverse events were uncommon and generally unrelated to treatment. No deaths were attributed to study therapy.
  • Clinical evidence of disease stability: Three of eight patients (37.5%) in this cohort of patients with end-stage disease achieved stable disease.
  • Successful tumor transduction and PNP transgene expression: Tumor biopsies confirmed uptake and expression of the therapeutic E. coli PNP transgene in all evaluable patients, supporting the mechanistic foundation of the Gedeptin platform.

Study results suggest that earlier intervention, higher vector dosing, improved tumor transduction, or combination therapy (e.g., with immune checkpoint inhibitors) may further increase efficacy. Preclinical findings cited in the manuscript show that Gedeptin-mediated tumor destruction may sensitize tumors to checkpoint inhibitors, offering a promising path forward.

J. Marc Pipas, MD, Executive Medical Director, Oncology of GeoVax, stated: “This publication reinforces the strong scientific rationale underpinning the Gedeptin platform. Even in a highly refractory patient population with extensive prior treatment, repeated intratumoral dosing of Gedeptin demonstrated a favorable safety profile and evidence of disease stability. Importantly, correlative analyses confirmed robust tumor transduction and PNP expression, a critical mechanistic milestone for gene-directed enzyme prodrug therapy.”

Kelly T. McKee, MD, MPH, Chief Medical Officer of GeoVax, added: “These results support the continued development of Gedeptin in settings where tumor burden is lower, patients are less heavily pretreated, or where combination strategies, particularly with immune checkpoint inhibitors, may amplify therapeutic benefit. This aligns with our strategy to advance Gedeptin into neoadjuvant studies for surgically resectable recurrent head and neck cancers.”

David Dodd, Chairman & CEO of GeoVax, stated: “The publication in the ASCO journal underscores both the scientific significance of this trial and the need for new approaches to treat recurrent head and neck cancers. Gedeptin’s targeted mechanism, combined with its repeat-dosing feasibility, offers a promising therapeutic option for patients. We look forward to expanding development into earlier disease settings and into rational combination regimens.”

About the Gedeptin® Platform

Gedeptin is a non-replicating adenoviral vector delivering the E. coli purine nucleoside phosphorylase (PNP) gene directly into tumor tissue. Following intratumoral injection, patients receive systemic fludarabine, which is converted in PNP-expressing tumor cells into a potent cytotoxic metabolite (2-fluoroadenine, F-Ade).

Key characteristics include:

  • Tumor-agnostic mechanism of action, driven by localized intratumoral activation of fludarabine into the potent cytotoxin F-Ade, enabling activity independent of tumor histology or proliferation rate.
  • Strong bystander effect, in which the activated F-Ade diffuses to neighboring cancer cells – allowing Gedeptin to kill tumor cells even when only a small fraction is directly transduced.
  • Immune-sensitizing properties that enhance tumor antigen visibility and may improve responses to immune checkpoint inhibitors.
  • Favorable safety profile, demonstrated across early Phase 1 and Phase 1/2 studies and supported by consistent tolerability in heavily pretreated solid tumor patients.

Gedeptin is now progressing toward combination-therapy in a neoadjuvant clinical program. Building on robust preclinical data showing that Gedeptin enhances tumor sensitivity to immune checkpoint blockade, GeoVax is advancing plans to evaluate Gedeptin with agents such as pembrolizumab aiming to strengthen antitumor immune activation.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumors. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received  mRNA vaccines. In oncology, the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the  our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

GeoVax Labs (GOVX) – 3Q25 Reported With Clinical Trial Updates and Plans To Move Products Forward


Friday, November 14, 2025

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel therapies and vaccines for solid tumor cancers and many of the world’s most threatening infectious diseases. The company’s lead program in oncology is a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, presently in a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax’s lead infectious disease candidate is GEO-CM04S1, a next-generation COVID-19 vaccine targeting high-risk immunocompromised patient populations. Currently in three Phase 2 clinical trials, GEO-CM04S1 is being evaluated as a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, and as a booster vaccine in patients with chronic lymphocytic leukemia (CLL). In addition, GEO-CM04S1 is in a Phase 2 clinical trial evaluating the vaccine as a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. GeoVax has a leadership team who have driven significant value creation across multiple life science companies over the past several decades.

Robert LeBoyer, Senior Vice President, Equity Research Analyst, Biotechnology, Noble Capital Markets, Inc.

Refer to the full report for the price target, fundamental analysis, and rating.

Plans For MVA Vaccine and Gedeptin Trial Expectations Confirmed. GeoVax reported a 3Q25 loss of $6.3 million or $(0.31) per share, a smaller loss than the $8.0 million loss we had projected. The company reviewed several developments related to the Geo-MVA vaccine for smallpox/Mpox, Gedeptin, and CM04S1. Discussions for possible marketing collaborations continue. The cash balance on September 30, 2025 was $5.0 million.

Moving Forward With Geo-MVA. As discussed in our Research Note on June 17, the Geo-MVA vaccine for smallpox/Mpox is moving forward toward a Phase 3 trial. This follows receipt of Scientific Advice EMA (European Medicines Agency) stating that a marketing approval application can be submitted after a single, Phase 3 immuno-bridging study against the approved MVA vaccine. Phase 1 and Phase 2 would not be required. This saves several years and many millions dollars, allowing the company to sell the vaccine sooner.


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Release – GeoVax to Report Third Quarter 2025 Financial Results and Provide Corporate Update on November 13, 2025

Research News and Market Data on GOVX

Atlanta, GA – November 4, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing multi-antigen vaccines and immunotherapies for infectious diseases and cancer, today announced that it will report its financial results for the quarter ended September 30, 2025, after the close of U.S. markets on Thursday, November 13, 2025. Following the release, management will host a live conference call and audio webcast at 4:30 p.m. ET to review results and provide a business update.

Conference Call Details

To access the live conference call, participants may register in advance here (https://edge.media-server.com/mmc/p/u86rmdmb/). The live audio webcast of the call will be available via the “Events & Presentations” section of the Company’s Investor Relations website at www.geovax.com/investors. To participate via telephone, please register using the link above; registrants will receive a confirmation email with dial-in information, a unique passcode, and access instructions. Although registration is not required, participants are encouraged to join ten minutes prior to the scheduled start. An archive of the webcast will be available on the Company’s website approximately two hours after the conclusion of the call and will remain available for at least 90 days.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com 

Release – GeoVax Announces Relocation of Corporate Headquarters and Laboratory Operations to Support Accelerated Growth and Pipeline Advancement

Research News and Market Data on GOVX

Relocations Strengthen Ties to Georgia’s Bio-Ecosystem and Position GeoVax for Late-Stage Development and Market Readiness

Atlanta, GA – November 3, 2025 – GeoVax Labs, Inc. (Nasdaq: GOVX), a clinical-stage biotechnology company developing immunotherapies and multi-antigen vaccines against cancers and infectious diseases, today announced relocations of its corporate headquarters and laboratory operations to new facilities in the Atlanta metropolitan area. The moves, scheduled for fourth quarter of 2025, will support GeoVax’s continued growth, expanding pipeline, and preparation for product commercialization.

GeoVax’s laboratory group is relocating to Science Square / Portal Innovations, located in midtown Atlanta. This state-of-the-art facility will provide the Company’s R&D team with expanded access to modern laboratories and collaborative research environments designed to accelerate innovation and development activities.

The Company’s new corporate headquarters will be located at 1955 Lake Park Drive in Smyrna, Georgia, establishing a new hub for corporate operations and leadership activities.

“These moves reflect a significant milestone in GeoVax’s evolution,” said David Dodd, Chairman and Chief Executive Officer of GeoVax. “By placing members of our R&D team in one of the most dynamic bio-research ecosystems in the Southeast, and by expanding our administrative base, we are positioning GeoVax for an accelerated next stage of growth. These facilities will support our broad and advancing pipeline, which includes our promising GEO-MVA program and multiple clinical trials in cancer therapy and infectious disease vaccines.”

“We are incredibly excited for GeoVax to join Portal Atlanta at Science Square Labs,” said Eddie Lai, Director of Business Development, Atlanta Portal Innovations. “GeoVax brings a strong legacy of innovation rooted in the Southeast to the Portal Innovations ecosystem that includes 100+ innovative companies utilizing our sites across the country. As an innovation engine, Portal Innovations supports scientific companies including life sciences and biotech in all stages of development in both R&D and administrative capabilities, and GeoVax is a perfect addition to our growth right here in Atlanta.”

The relocations underscore GeoVax’s trajectory as a company focused on long-term growth, scientific advancement, and future commercialization opportunities. As the Company builds momentum with a deepening pipeline and strategic partnerships, its enhanced infrastructure will provide a strong foundation to meet global healthcare needs.

About GeoVax

GeoVax Labs, Inc. is a clinical-stage biotechnology company developing novel vaccines against infectious diseases and therapies for solid tumor cancers. The Company’s lead clinical program is GEO-CM04S1, a next-generation COVID-19 vaccine currently in three Phase 2 clinical trials, being evaluated as (1) a primary vaccine for immunocompromised patients such as those suffering from hematologic cancers and other patient populations for whom the current authorized COVID-19 vaccines are insufficient, (2) a booster vaccine in patients with chronic lymphocytic leukemia (CLL) and (3) a more robust, durable COVID-19 booster among healthy patients who previously received the mRNA vaccines. In oncology the lead clinical program is evaluating a novel oncolytic solid tumor gene-directed therapy, Gedeptin®, having recently completed a multicenter Phase 1/2 clinical trial for advanced head and neck cancers. GeoVax is also developing a vaccine targeting Mpox and smallpox and, based on recent EMA regulatory guidance, anticipates progressing directly to a Phase 3 clinical evaluation, omitting Phase 1 and Phase 2 trials. GeoVax has a strong IP portfolio in support of its technologies and product candidates, holding worldwide rights for its technologies and products. For more information about the current status of our clinical trials and other updates, visit our website: www.geovax.com.

Forward-Looking Statements

This release contains forward-looking statements regarding GeoVax’s business plans. The words “believe,” “look forward to,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. Actual results may differ materially from those included in these statements due to a variety of factors, including whether: GeoVax is able to obtain acceptable results from ongoing or future clinical trials of its investigational products, GeoVax’s immuno-oncology products and preventative vaccines can provoke the desired responses, and those products or vaccines can be used effectively, GeoVax’s viral vector technology adequately amplifies immune responses to cancer antigens, GeoVax can develop and manufacture its immuno-oncology products and preventative vaccines with the desired characteristics in a timely manner, GeoVax’s immuno-oncology products and preventative vaccines will be safe for human use, GeoVax’s vaccines will effectively prevent targeted infections in humans, GeoVax’s immuno-oncology products and preventative vaccines will receive regulatory approvals necessary to be licensed and marketed, GeoVax raises required capital to complete development, there is development of competitive products that may be more effective or easier to use than GeoVax’s products, GeoVax will be able to enter into favorable manufacturing and distribution agreements, and other factors, over which GeoVax has no control.

Further information on our risk factors is contained in our periodic reports on Form 10-Q and Form 10-K that we have filed and will file with the SEC. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Company Contact:

info@geovax.com

678-384-7220

Media Contact:

Jessica Starman

media@geovax.com