Quarterly Report for Quarter Ending June 30, 2026 (Form 10-Q)

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The following discussion and analysis of our financial condition and results of operations This discussion contains forward-looking statements that involve risks and uncertainties. Our actual results may differ materially from those discussed in forward-looking statements. Factors that might cause a difference include, but are not limited to, those discussed above under "Cautionary Note Regarding Forward-Looking Statements," and in Item 1A. Risk factors in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Overview

Imunon is a clinical-stage biotechnology company focused on advancing a portfolio of innovative treatments that harness the body's natural mechanisms with the aim to generate safe, effective and durable responses across a broad array of human diseases, constituting a differentiating approach from conventional therapies. Imunon is developing its non-viral DNA technology across its modalities. The first modality, TheraPlas®, is developed for the coding of proteins and cytokines in the treatment of solid tumors where an immunological approach is deemed promising. The second modality, PlaCCine®, is developed for the coding of viral antigens that can elicit a strong immunological response. This technology may represent a promising platform for the development of vaccines in infectious diseases.

The Company's lead clinical program, IMNN-001, is a DNA-based immunotherapy for the localized treatment of advanced ovarian cancer that has completed multiple clinical trials including one Phase II clinical trial (OVATION 2) and is currently conducting a Phase 3 clinical trial (OVATION 3). IMNN-001 works by instructing the body to produce safe and durable levels of powerful cancer-fighting molecules, such as interleukin-12 and interferon gamma, at the tumor site. Additionally, the Company has completed dosing in a first-in-human study of its COVID-19 booster vaccine (IMNN-101). The Company will continue to leverage these modalities and to advance, either directly or through partnership, the technological frontier of plasmid DNA to better serve patients with difficult-to-treat conditions.

Technology Platform

Imunon's technology platform is optimized for the delivery of DNA and mRNA therapeutics via synthetic non-viral carriers and facilitates cell transfection for double-stranded DNA plasmids and large therapeutic RNA segments such as mRNA. There are two components to the system, a backbone with plasmid DNA or mRNA payload encoding therapeutic proteins, or pathogen antigens or tumor associated antigens or cancer neoantigens and a delivery system. The delivery system is designed to protect the DNA or mRNA from degradation and promote trafficking into cells and through intracellular compartments. We designed the delivery system by chemically modifying the low molecular weight polymer to improve its gene transfer activity without increasing toxicity. We believe that our non-viral DNA technology may be a viable alternative to current approaches to gene delivery due to several distinguishing characteristics, including enhanced molecular versatility that allows for complex modifications to potentially improve activity and safety.

The biocompatibility of these polymers reduces the risk of adverse immune response, thus allowing for repeated administration. Compared to naked DNA or cationic lipids, we believe that our delivery systems are generally more efficient, cost effective and have a more favorable safety profile. We believe that these advantages place Imunon in a position to capitalize on this technology platform.

THERAPLAS MODALITY:IMNN-001 DEVELOPMENT PROGRAM

Ovarian Cancer Overview

Ovarian cancer is one of the most lethal of gynecological malignancies among women with more than 60% of women dying within five years of diagnosis. This poor outcome is due in part to the lack of effective prevention and early detection strategies. There were approximately 20,000 new cases of ovarian cancer in the U.S. with an estimated 13,000 deaths. There are approximately 300.000 new cases of ovarian cancer world-wide. Mortality rates for ovarian cancer has declined very little in the last 40 years due to the lack of early detection tests and improved treatments. Most women with ovarian cancer are not diagnosed until Stages III or IV, when the disease has spread outside the pelvis to the abdomen and areas beyond, causing swelling and pain. With the five-year survival rates for Stages III and IV at 41% and 20%, respectively, there remains a major need for a therapy that not only reduces the recurrence rate but also meaningfully improves overall survival.

With an increased understanding of tumor genetics, practice has shifted to include targeted agents in ovarian cancer treatment. Ten to 15% of ovarian cancer cases nationwide are a result of germline or somatic BRCA mutations, and up to 40-50% of ovarian cancers have BRCA mutations, or other mutations which also inhibit DNA repair.

Poly (ADP-ribose) polymerase ("PARP") enzymes are responsible for detecting and repairing single-stranded and double-stranded DNA breaks during cell replication. BRCA1/2 mutations hinder the homologous recombination repair pathway, and tumor cells utilize PARP enzymes to repair DNA. For this reason, these tumors are particularly sensitive to the mechanism of PARP inhibitors. PARP inhibitors have expanded maintenance options in ovarian cancer, but no new frontline maintenance treatment options which improve survival are available for women who are not eligible to receive PARP inhibitors.

Immunotherapy is an attractive, novel approach for the treatment of ovarian cancer particularly since ovarian cancers are considered potentially immunogenic tumors. Interleukin-12 ("IL-12") is one of the most active cytokines for the induction of potent anti-cancer immunity acting through the induction of T-lymphocyte and natural killer cell proliferation. The precedence for a therapeutic role of IL-12 in ovarian cancer is based on epidemiologic and clinical and preclinical data.

IMNN-001 Immunotherapy

IMNN-001 is a DNA-based immunotherapeutic drug candidate for the localized treatment of ovarian cancer by intraperitoneally administering an IL-12 plasmid formulated with our proprietary TheraPlas delivery system. In this DNA-based approach, the immunotherapy is combined with a standard chemotherapy drug, which can potentially achieve better clinical outcomes than with chemotherapy alone. We believe that increases in IL-12 concentrations at tumor sites for several days after a single administration, and our demonstrated ability to safely deliver repeated doses could create a potent anti-tumor immune environment that is synergistic with concomitant use of cytotoxic chemotherapy, resulting in a more robust and durable antitumor response than chemotherapy alone. We believe the rationale for local therapy with IMNN-001 is based on the following:

	●	Loco-regional production of the potent cytokine IL-12 avoids toxicities and poor pharmacokinetics associated with systemic delivery of recombinant IL-12;
	●	Persistent local delivery of IL-12 lasts up to one week and dosing can be safely repeated weekly; and
	●	Local therapy is ideal for long-term therapy.

OVATION 1 Study. In February 2015, we announced that the FDA accepted the Phase I dose-escalation clinical trial of IMNN-001 in combination with the standard of care in neoadjuvant ovarian cancer (the "OVATION 1 Study"). The OVATION 1 Study was designed to:

	●	identify a tolerable and therapeutically active dose of IMNN-001 within certain safety parameters by recruiting and maximizing an immune response;
	●	enroll three to six patients per dose level and evaluate safety and efficacy; and
	●	attempt to define an optimal dose for a follow-on Phase I/II study.

In addition, the OVATION 1 Study established a unique opportunity to assess how cytokine-based compounds such as IMNN-001 directly affect ovarian cancer cells and the tumor microenvironment in newly diagnosed ovarian cancer patients. The study was designed to characterize the nature of the immune response triggered by IMNN-001 at various levels of the patients' immune system, including:

	●	Infiltration of cancer fighting T-cell lymphocytes into primary tumor and tumor microenvironment including peritoneal cavity, which is the primary site of metastasis of ovarian cancer;
	●	Changes in local and systemic levels of immuno-stimulatory and immune-suppressive cytokines associated with tumor suppression and growth, respectively; and
	●	Expression profile of a comprehensive panel of immune related genes in pre-treatment and IMNN-001-treated tumor tissue.

During 2016 and 2017, we announced data from the first 14 patients in the OVATION 1 Study. On October 3, 2017, we announced final translational research and clinical data from the OVATION 1 Study.

Key translational research findings from all evaluable patients are summarized below:

	●	The intraperitoneal treatment of IMNN-001 in conjunction with standard-of-care neoadjuvant chemotherapy ("NACT") resulted in dose-dependent increases in IL-12 and Interferon-gamma (IFNγ) levels that were predominantly in the peritoneal fluid compartment with little to no changes observed in the patients' systemic circulation. These and other post-treatment changes including decreases in VEGF levels in peritoneal fluid were consistent with an IL-12 based immune mechanism;
	●	Consistent with the previous partial reports, the effects observed in the Immunohistochemistry analysis were pronounced decreases in the density of immunosuppressive T-cell signals (Foxp3, PD-1, PDL-1, IDO-1) and increases in CD8+ cells in the tumor microenvironment;
	●	The ratio of CD8+ cells to immunosuppressive cells was increased in approximately 75% of patients, suggesting an overall shift in the tumor microenvironment from immunosuppressive to pro-immune stimulatory following treatment with IMNN-001. An increase in CD8+ to immunosuppressive T-cell populations was a leading indicator and believed to be a good predictor of improved OS; and
	●	Analysis of peritoneal fluid by cell sorting, not reported before, showed a treatment-related decrease in the percentage of immunosuppressive T-cell (Foxp3+), which was consistent with the reduction of Foxp3+ T-cells in the primary tumor tissue, and a shift in tumor naïve CD8+ cell population to more efficient tumor killing memory effector CD8+ cells.

The Company reported encouraging clinical data from the first 14 patients who completed treatment in the OVATION 1 Study. IMNN-001 plus standard chemotherapy produced no dose-limiting toxicities and positive dose dependent efficacy signals which correlate well with positive surgical outcomes as summarized below:

	●	Of the 14 patients treated in the entire study, two patients demonstrated a complete response, 10 patients demonstrated a partial response, and two patients demonstrated stable disease, as measured by Response Evaluation Criteria in Solid Tumors ("RECIST") criteria. This translated to a 100% disease control rate and an 86% objective response rate ("ORR"). Of the five patients treated in the highest dose cohort, there was a 100% ORR with one complete response and four partial responses;
	●	14 patients had successful resections of their tumors, with nine patients (64%) having a complete tumor resection ("R0"), which indicates a microscopically margin-negative resection in which no gross or microscopic tumor remains in the tumor bed. Seven out of eight (88%) patients in the highest two dose cohorts experienced a R0 surgical resection. All five patients treated at the highest dose cohort experienced a R0 surgical resection; and
	●	All patients experienced a clinically significant decrease in their CA-125 protein levels. CA-125 was used to monitor certain cancers during and after treatment. CA-125 was present in greater concentrations in ovarian cancer cells than in other cells.

On March 26, 2020, the Company announced with Medidata Solutions, a subsidiary of Dassault Systèmes, that examining matched patient data provided by Medidata in a synthetic control arm ("SCA") with results from the Company's Phase I dose-escalating OVATION 1 Study showed positive results in progression-free survival ("PFS"). The hazard ratio ("HR") was 0.53 in the intent-to-treat ("ITT") group, showing strong signals of efficacy. In its March 2019 discussion with the Company, the FDA noted that preliminary findings from the Phase I OVATION 1 Study were exciting but lacked a control group to evaluate IMNN-001's independent impact on impressive tumor response, surgical results and PFS. The FDA encouraged the Company to continue its IMNN-001 development program and consult with FDA with new findings that may have a bearing on designations such as Fast Track and Breakthrough Therapy.

On July 29, 2021, the Company announced final PFS results from the OVATION 1 Study published in the Journal of Clinical Cancer Research. Median PFS in patients treated per protocol (n=14) was 21 months and was 18.4 months for the ITT population (n=18) for all dose cohorts, including three patients who dropped out of the study after 13 days or less, and two patients who did not receive full NACT and IMNN-001 cycles. Under the current standard of care, in women with Stage III/IV ovarian cancer undergoing NACT, their disease progresses within about 12 months on average. The results from the OVATION 1 Study supported continued evaluation of IMNN-001 based on promising tumor response, as reported in the PFS data, and the ability for surgeons to completely remove visible tumors at the time of interval debulking surgery. IMNN-001 was well tolerated, and no dose-limiting toxicities were detected in the OVATION 1 Study. Intraperitoneal administration of IMNN-001 was feasible with broad patient and physician acceptance.

OVATION 2 Study. The Company held an Advisory Board Meeting on September 27, 2017 with clinical investigators and scientific experts including those from Roswell Park Cancer Institute, Vanderbilt University Medical School, and M.D. Anderson Cancer Center to review and finalize clinical, translational research and safety data from the OVATION 1 Study to determine the next steps forward for our IMNN-001 immunotherapy program. On November 13, 2017, the Company filed its Phase I/II clinical trial protocol with the FDA for IMNN-001 for the localized treatment of ovarian cancer. The protocol was designed with a single dose escalation phase to 100 mg/m² to identify a tolerable dose of IMNN-001 within certain safety parameters while maximizing an immune response. The Phase I portion of the study would be followed by a continuation at the selected dose in approximately 110 patients randomized Phase II study.

In the OVATION 2 Study, patients in the IMNN-001 treatment arm would receive IMNN-001 plus chemotherapy pre- and post-interval debulking surgery ("IDS"). The OVATION 2 Study was designed to include up to 110 patients with Stage III/IV ovarian cancer, with 15 patients in the Phase I portion and up to 95 patients in Phase II. The sample size is consistent with a Phase II trial designed to inform the design of a Phase III trial comparing IMNN-001 with neoadjuvant + adjuvant chemotherapy versus neoadjuvant + adjuvant chemotherapy alone. As a Phase II study, the OVATION 2 Study was not powered for statistical significance. The primary endpoint is PFS and the primary analysis would be conducted after at least 80 events had been observed or after all patients had been followed for at least 16 months, whichever was later. Additional endpoints included objective response rate, overall survival, chemotherapy response score, and surgical response.

In March 2020, the Company announced encouraging initial clinical data from the first 15 patients enrolled in the Phase I portion of the OVATION 2 Study for patients newly diagnosed with Stage III and IV ovarian cancer. The OVATION 2 Study was designed to combine IMNN-001, the Company's IL-12 gene-mediated immunotherapy, with standard-of-care NACT. Following NACT, patients undergo IDS, followed by three additional cycles of chemotherapy.

IMNN-001 plus standard-of-care NACT produced positive dose-dependent efficacy results, with no dose-limiting toxicities, which correlate well with successful surgical outcomes as summarized below:

	●	Of the 15 patients treated in the Phase I portion of the OVATION 2 Study, nine patients were treated with IMNN-001 at a dose of 100 mg/m² plus NACT and six patients were treated with NACT only. All 15 patients had successful resections of their tumors, with eight out of nine patients (88%) in the IMNN-001 treatment arm having an R0 resection. Only three out of six patients (50%) in the NACT only treatment arm had a R0 resection.
	●	When combining these results with the surgical resection rates observed in the Company's OVATION 1 Study, a population of patients with inclusion criteria identical to the OVATION 2 Study, the data reflected the strong dose-dependent efficacy of adding IMNN-001 to the current standard of care NACT:

				% of Patients R0 Resections
0, 36, 47 mg/m² of IMNN-001 plus NACT		N =12			42	%
61, 79, 100 mg/m² of IMNN-001 plus NACT		N = 17			82	%

●

The ORR as measured by RECIST criteria for the 0, 36, 47 mg/m² dose IMNN-001 patients were comparable, as expected, to the higher (61, 79, 100 mg/m²) dose IMNN-001 patients, with both groups demonstrating an approximate 80% ORR.

On March 23, 2020, the Company announced that the European Medicines Agency (the "EMA") Committee for Orphan Medicinal Products ("COMP") had recommended that IMNN-001 be designated as an orphan medicinal product for the treatment of ovarian cancer. IMNN-001 previously received orphan designation from the FDA.

In February 2021, the Company announced that it had received Fast Track designation from the FDA for IMNN-001 and also provided an update on the OVATION 2 Study. The Company reported that approximately one-third, or 34 patients, of the anticipated 110 patients had been enrolled into the OVATION 2 Study, of which 20 were in the treatment arm and 14 were in the control. Of the 34 patients enrolled in the trial, 27 patients have had their IDS with the following results:

	●	80% of patients treated with IMNN-001 had a R0 resection.
	●	58% of patients in the control arm had an R0 resection.
	●	These interim data represented a 38% improvement in R0 resection rates for IMNN-001 patients compared with control arm patients and was consistent with the reported improvement in resection scores noted in our Phase I OVATION 1 Study, the manuscript of which was submitted for peer review publication.

In June 2022, the Company announced that following a pre-planned interim safety review of 87 as treated patients (46 patients in the experimental arm and 41 patients in the control arm) randomized in the OVATION 2 Study, the Data Safety Monitoring Board ("DSMB") unanimously recommended that the OVATION 2 Study continue treating patients with the dose of 100 mg/m². The DSMB also determined that safety was satisfactory, with an acceptable risk/benefit, and that patients tolerated IMNN-001 during a course of treatment that would last up to six months. No dose-limiting toxicities were reported at this point in the OVATION 2 Study. Interim clinical data from patients who had undergone IDS showed that the IMNN-001 treatment arm was continuing to show improvement in R0 surgical resection rates and CRS 3 chemotherapy response scores over the control arm. The chemotherapy response score is a three-tier standardized scoring system for histological tumor regression into complete/near complete (CRS 3), partial (CRS 2) and no/minimal (CRS 1) response based on omental examination.

In September 2022, the Company announced that its Phase I/II OVATION 2 Study with IMNN-001 in advanced ovarian cancer had completed enrollment with 113 patients. In September 2023, the Company announced interim PFS and OS data with IMNN-001 in its Phase I/II OVATION 2 Study. Interim clinical data from the ITT population showed efficacy trends in PFS, demonstrating a delay in disease progression in the treatment arm of approximately 33% compared with the control arm, with the hazard ratio nearing the required value. Preliminary OS data followed a similar trend, showing an approximate 9-month improvement in the treatment arm over the control arm.

Subgroup analyses showed patients treated with a PARP inhibitor ("PARPi") as maintenance therapy had longer PFS and OS if they were also treated with IMNN-001 compared with patients treated with NACT only. The PARPi subgroup was not specified prior to the trial because they were approved after the OVATION 2 Study was initiated. However this subgroup, and others, were pre-specified prior to Database lock and formal analysis.

	●	The median PFS in the PARPi + NACT group and the PARPi + NACT + IMNN-001 group was 15.7 months and 23.7 months, respectively.
	●	The median OS in the PARPi + NACT group was 45.6 months and has not yet been reached in the PARPi + NACT + IMNN-001 group.

Imunon also continues to see benefits in other secondary endpoints including an approximately 20% higher R0 tumor resection score and a doubling of the CRS 3 chemotherapy response score to approximately 30% in the treatment arm versus 14% in the control arm. Chemotherapy response score is considered a good prognostic indicator in ovarian cancer. The DSMB determined that safety analyses continue to show good tolerability of IMNN-001 in this setting.

In June 2024, the Company announced database lock for the OVATION 2 Study. At that time, median OS and PFS had been reached, and all patients in the open-label study had achieved treatment observation duration of 16 months, as required by protocol to evaluate efficacy. On July 11, 2024, a scientific advisory board with DSMB members, principal investigators, and scientific experts was held to review efficacy and safety data from the OVATION 2 study.

On July 30, 2024, the Company announced positive topline results from the Phase I/II OVATION 2 Study. Highlights from patients treated with IMNN-001 plus standard-of-care in a first-line treatment setting include:

	●	An 11.1 month increase in median OS compared with standard-of-care alone in the ITT population.
	●	A hazard ratio in the ITT population of 0.74, which indicates a 35% improvement in survival.
	●	Among the approximately 90% of trial participants who received at least 20% of specified treatments per-protocol in both study arms, patients in the IMNN-001 arm had a 15.7 month increase in median OS, representing a further extension of life with a hazard ratio of 0.64, a 56% improvement in survival.
	●	For nearly 40% of trial participants treated with a PARP inhibitor, the hazard ratio decreased further to 0.41, with median OS in the IMNN-001 treatment arm not yet reached at the time of database lock, compared with median OS of 37.1 months in the standard-of-care treatment arm.

The PFS results, the trial's primary endpoint, support the OS results with:

	●	A three-month improvement in PFS compared with standard-of-care alone.
	●	A hazard ratio in the intent-to-treat population of 0.79, indicating a 27% improvement in delaying progression for the IMNN-001 treatment arm.

These initial results from the OVATION 2 Study were presented in a late-breaking session at the Society for Immunotherapy of Cancer (SITC) 39^th Annual Meeting in November 2024.

On September 11, 2024, a scientific advisory board was held with DSMB members, principal investigators, and scientific experts to discuss and seek input on the protocol synopsis for the Phase III trial. A protocol synopsis was submitted along with a briefing document for review and input at the End-of-Phase II ("EOP2") meeting with the U.S. Food and Drug Administration focused on the Phase III study. The EOP2 meeting was conducted in the fourth quarter of 2024.

	●	The positive outcome of the EOP2 in-person meeting with the U.S. Food and Drug Administration (FDA), supported the advancement of IMNN-001 for the treatment of advanced ovarian cancer into a Phase 3 pivotal study. The interaction with the FDA included an extensive review of data generated to date, including positive results from the recently completed Phase 2 OVATION 2 Study, which assessed IMNN-001 (100 mg/m2 administered intraperitoneally weekly) plus neoadjuvant and adjuvant chemotherapy (NACT) of paclitaxel and carboplatin compared to standard-of-care NACT alone in 112 patients with newly diagnosed advanced ovarian cancer. Treatment was also generally well tolerated, with no reports of cytokine release syndrome or any other serious immune-related adverse events.
	●	The Company also held a Type C Chemistry, Manufacturing, and Controls (CMC) meeting with the FDA regarding production of IMNN-001 for the treatment of women with newly diagnosed advanced ovarian cancer. The goal of the meeting was to seek alignment and agreement with the FDA on key CMC topics to support IMNN-001 production for the planned Phase 3 pivotal trial and a potential future new biologic license application (BLA) submission. The meeting with the FDA included a review of the Company's current good manufacturing practice (cGMP) clinical-scale and commercial manufacturing process for IMNN-001, conducted at the Company's manufacturing facility based in Huntsville, Alabama. The Agency agreed that the Company's potency assay which measures interferon-gamma (IFN-γ) is acceptable for the Phase 3 clinical study and for use in a commercial setting for release of drug product. The FDA also agreed with the Company's strategy to establish comparability of the core components of IMNN-001 produced by the Company with product previously produced through an external contract development and manufacturing organization.

In December 2024, the Company announced additional clinical data from ongoing analyses of results from the Phase 2 OVATION 2 Study. The updated results (including a post announcement, immaterial statistical correction), based on an additional seven months of patient monitoring, showed the following:

	●	The hazard ratio (HR) decreased from 0.74 to 0.70 in the ITT population, with an increase in median overall survival (OS) from 11.1 to 13 months following treatment with IMNN-001 plus standard-of-care (SoC) neoadjuvant and adjuvant chemotherapy (NACT) versus SoC alone.
	●	More than one-third of patients in the trial survived more than 36 months from the point of study enrollment, with 62% of those surviving patients from the IMNN-001 treatment arm and 38% from the SoC arm. Over 10% of trial participants have reached 48 months or beyond.

In June 2025, the Company announced positive data from the Company's Phase 2 OVATION 2 Study showing that treatment with IMNN-001 in women with newly diagnosed advanced ovarian cancer resulted in consistent, clinically meaningful improvements in several key endpoints across treatment groups, including overall survival (OS), progression-free survival (PFS), chemotherapy response score and surgical response. Treatment with IMNN-001 also showed a favorable safety profile, with no reports of serious immune-related adverse events. The full results were presented in an oral presentation at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago, Illinois, and simultaneously published in the peer-reviewed journal Gynecologic Oncology. The data presented highlighted the following results achieved across all treatment groups:

	●	Median 13-month increase in OS and median 3-month increase in PFS in IMNN-001 treatment arm compared to standard of care alone.
	●	Better therapeutic effect observed with IMNN-001 treatment compared to the control arm (p=0.0375), as shown by mean 6.5-month extension of time free of progression or death (PFS + OS) captured in totality of treatment effect.
	●	Use of poly ADP-ribose polymerase (PARP) inhibitors as part of maintenance therapy further enhanced outcomes, with median OS not yet reached in IMNN-001 treatment arm after >5 years compared to 37 months on standard of care.
	●	Chemotherapy response score highlights double the response rate of a complete or near complete histopathological response following treatment with 26.1% in the IMNN-001 treatment arm compared to 13.0% in the control arm.
	●	Surgical response rate of no macroscopic residual tumor left after surgery 64.6% in the IMNN-001 treatment arm compared to 52.1% in the control arm.
	●	Hazard ratio of 0.78 in study participants who are homologous recombination proficient (HRP) and hazard ratio of 0.42 in women positive for homologous recombination deficiency (HRD+), including BRCA1 or BRCA2 mutations, suggesting increased therapeutic activity.
	●	IMNN-001 was generally safe and well tolerated, with no reports of cytokine release syndrome, systemic toxicity or serious immune-related adverse events.

On June 18, 2025, the Company presented positive translational data from the OVATION 2 Study of IMNN-001 at the ESMO Gynecological Cancers Congress 2025, that took place on June 19-21, 2025, in Vienna, Austria. Results presented at the ESMO Congress showed that treatment with IMNN-001 induced substantial increases in IL-12 and interferon-gamma (IFN-γ) and tumor necrosis factor-alpha (TNF-α), key downstream anti-cancer immune cytokines. Increases in IL-12, IFN-γ and TNF-α levels in the peritoneal cavity were approximately 27-, 62- and 36-fold following treatment, respectively, demonstrating the tumor-localized effect of IMNN-001 in women with advanced ovarian cancer. IMNN-001 continues to show a favorable safety profile.

In September 2025, the Company presented additional positive translational data from the OVATION 2 Study at the American Association for Cancer Research (AACR) Special Conference in Cancer Research: Advances in Ovarian Cancer Research reinforcing the favorable safety profile and efficacy benefits of IMNN-001 observed in the clinic, including increases in key anti-cancer immune cytokines and modulation of relevant anti-tumor immune cell populations, such as CD8+ T cells and myeloid dendritic cells, in the tumor and tumor microenvironment in study participants post-treatment. Results presented at the AACR Special Conference demonstrated:

	●	Positive shift in the local TME to favorable immune stimulatory T cell ratios in the majority of participants treated with IMNN-001, including favorable ratios of CD8+/T regulatory (Treg) cells, CD8+/IDO+ cells, and CD8+/CD4+ cells.
	●	TME shift in favor of decreased immunosuppression cells (IDO+, PDL1+, Treg, CD4+) and increased immunostimulatory cells (CD8+, CD8+ effector, myeloid dendritic cells) in the majority of participants post-treatment.
	●	IMNN-001 treatment creates a "hot" anti-TME by increasing the recruitment of anti-tumor CD8+ and myeloid dendritic cells in 50-80% of the paired samples and decreasing immunosuppressive markers (IDO, PDL1, Treg cells) in 65-80% of the samples.
	●	IMNN-001 continues to show a favorable safety profile.

Results from the study continue to validate our TheraPlas® technology and the broad impact of IMNN-001 on important cancer-fighting cytokines, effectively turning the tumor microenvironment from "cold" to 'hot' by activating both innate and adaptive immune systems, with limited to no systemic toxicities.

On November 10, 2025, the Company held a R&D Day which showcased recent progress with its IMNN-001 development program for the treatment of newly diagnosed advanced ovarian cancer, including a review of positive data from the Company's Phase 2 OVATION 2 Study and the minimal residual disease (MRD) study conducted in partnership with Break Through Cancer.

R&D Day Featured Speakers and Program Highlights:

●

Premal H. Thaker, M.D., Washington University School of Medicine, discussed the significant continuing unmet needs in ovarian cancer, a devastating disease where patient outcomes and frontline standard of care treatment have not changed for about 30 years, and the promise IMNN-001 brings to these patients and clinicians. She highlighted the data from the Phase 2 OVATION 2 clinical trial, with results including:

	◌	Broad impact observed with IMNN-001 treatment on important cancer-fighting cytokines, effectively turning the tumor microenvironment from "cold" to "hot" by activating both innate and adaptive immune systems, renewing the elusive promise of an immunotherapy for ovarian cancer.
	◌	Data reinforcing the highly favorable benefit-risk and safety profile of IMMN 001.
	◌	The median 13-month overall survival (OS) benefit observed with IMNN-001 plus standard of care (SoC) chemotherapy, an increase that is considered clinically meaningful compared to SoC alone.

●	Amir Jazaeri, M.D., University of Texas MD Anderson Cancer Center, discussed safety, tolerability and translational insights from the Phase 2 MRD study of IMNN-001, including:

	◌	Rationale for the trial and the importance of frontline therapy as the best opportunity to achieve a cure for ovarian cancer.
	◌	New translational data that clearly showed IMNN-001 preferentially being taken up by macrophages within the peritoneal fluid and tumor tissue, which then induces a robust response and tumor microenvironment remodeling.
	◌	New data further supporting the highly favorable benefit-risk and tolerability profile of IMNN-001.
	◌	The positive tolerability profile of IMNN-001, including in combination with SoC chemotherapy plus bevacizumab and in the maintenance setting.

●	Giorgio Paulon, Ph.D., Berry Consultants, LLC, reviewed the Phase 2 and ongoing Phase 3 trial designs and the strength of evidence for IMNN-001 from a statistical perspective. He highlighted the well-precedented nature of the Phase 3 design with the FDA, which leverages an innovative, adaptive, event-driven approach aligned with prior successful oncology trials that resulted in full approval by FDA based on interim analyses of overall survival.
●	Douglas V. Faller, M.D., Ph.D., Imunon's Chief Medical Officer, presented new data further demonstrating that IMNN-001 shifted the balance in favor of immune stimulation, remodeling the tumor microenvironment in favor of anti-tumor responses, which is established to be associated with better prognosis. He shared the rapid progress to-date on the Phase 3 trial of IMNN-001, including expansion to additional sites and enrollment exceeding the Company's expectations, strong levels of support and interest from investigators and the scientific community, and key clinical and other milestones for the company moving forward.

On March 25, 2026, the Company announced final data from the completed Phase 2 OVATION 2 clinical trial evaluating IMNN-001 in combination with standard of care (SoC) neoadjuvant and adjuvant chemotherapy. Imunon initially reported a median 11.1 month increase in overall survival (40.5 vs. 29.4 months) in the IMNN-001 treatment arm compared to SoC chemotherapy alone. Following the final data assessment, the Company reported a median 14.7 month increase in overall survival (45.1 vs. 30.4 months) in women in the IMNN-001 treatment arm compared to SoC alone, demonstrating continuous improvement in overall survival (3.6 delta) with increasing follow-up time. In addition, the final IMNN-001 data showed that women treated with IMNN-001 and SoC chemotherapy plus poly ADP-ribose polymerase (PARP) inhibitors as part of maintenance therapy achieved a median increase in overall survival of 24.2 months (65.6 vs. 41.4 months) compared to SoC chemotherapy alone.

Importantly, with these final efficacy results, IMNN-001 continued to show a highly favorable safety and tolerability profile across all clinical trials, further reinforcing the potential of this IL-12 immunotherapy to represent an important advance in the treatment of ovarian cancer.

OVATION 3 Study. The Phase 3 OVATION 3 trial will assess the safety and efficacy of IMNN-001 (100 mg/m² administered intraperitoneally weekly) plus neoadjuvant and adjuvant chemotherapy (NACT) of paclitaxel and carboplatin compared to standard of care (SoC) NACT alone. Study participants are being randomized 1:1 and include women with newly diagnosed advanced ovarian cancer (stage 3 or 4) who are eligible for neoadjuvant therapy, the intent-to-treat (ITT) population. Participants who are HRD positive will receive poly (ADP-ribose) polymerase (PARP) inhibitors as part of standard maintenance therapy. The primary endpoint of the study is overall survival (OS), and secondary endpoints are surgical response score, chemotherapy response score, clinical response and time to second-line treatment. The study will also assess several exploratory endpoints.

In March 2025, the Company announced that the FDA is aligned with the protocol for the Phase 3 OVATION 3 pivotal trial of its lead candidate IMNN-001 in development for the treatment of women with newly diagnosed advanced ovarian cancer. The Company is currently enrolling patients at four trial sites with additional sites being considered for activation.

As of June 30, 2026, seven sites are open to recruitment, and enrollment in the ITT population remains on track to complete enrollment by the first half of 2029. As reported on July 30, 2026 since initiating the trial, the Company has observed rapid site activation and an enrollment rate that is exceeding its forecast. The currently observed study-level enrollment rate of approximately meaningfully exceeds the assumed rate of 0.3 patients per site per month used in the trial plan. Additional sites will open on pace with projection.

On June 23, 2026, the independent Data Monitoring Committee (iDMC) has recommended continuation of the pivotal Phase 3 OVATION 3 clinical trial. IMNN-001 has continued to demonstrate a highly favorable safety and tolerability profile, with no observed episodes of cytokine release syndrome, systemic toxicities or serious immune-related adverse events that have historically blocked the use of IL-12 to effectively treat cancer patients. Safety profiles have been comparable between the two arms of the study (IMNN-001 plus neoadjuvant and adjuvant chemotherapy {N/ACT} versus N/ACT alone), consistent with observations from the Company's ongoing Phase 2 Minimal Residual Disease (MRD) study (see below). The iDMC has recommended continuation of the OVATION 3 clinical trial without modification, representing another important validation of the efficacy and safety data previously reported and brings new levels of momentum to the Company's efforts to advance this trial as rapidly as possible.

IMNN-001 in Combination with Bevacizumab. In February 2023, the Company and Break Through Cancer, a public foundation dedicated to supporting translational research in the most difficult-to-treat cancers that partners with top cancer research centers, announced the commencement of patient enrollment in a collaboration to evaluate IMNN-001 in combination with bevacizumab in patients with advanced ovarian cancer in the frontline, neoadjuvant clinical setting.

This Phase I/II study, titled "Targeting Ovarian Cancer Minimal Residual Disease (MRD) Using Immune and DNA Repair Directed Therapies," is expected to enroll 30 patients with Stage III/IV advanced ovarian cancer and is being led by principal investigator Amir Jazaeri, M.D., Vice Chair for Clinical Research and Director of the Gynecologic Cancer Immunotherapy Program in the Department of Gynecologic Oncology and Reproductive Medicine at MD Anderson. Dana-Farber Cancer Institute, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins and Memorial Sloan Kettering Cancer Center will also be participating in the trial. In addition, The Koch Institute for Integrative Cancer Research at the Massachusetts Institute of Technology (MIT) will provide artificial intelligence services including biomarker and genomic analysis.

Patients are randomized 1:1 in a two-arm trial. In October 2023, the first patient began treatment at University of Texas MD Anderson Cancer Center in the Phase I/II Clinical Trial Evaluating IMNN-001 in Combination with Bevacizumab in Advanced Ovarian Cancer. The trial's primary endpoint is detection of minimal residual disease (MRD) by second look laparoscopy (SLL), and the secondary endpoint is PFS. SLL data are expected within one year following the completion of enrollment and final PFS data are expected approximately three years following the completion of enrollment. This trial will also include a wealth of translational endpoints aimed at understanding the clonal evolution and immunogenomic features of the MRD phase of ovarian cancer that is currently undetectable by imaging or tumor markers.

On July 21, 2026, the Company announced new positive preliminary data from its ongoing Phase 2 MRD clinical trial. Nine patients in each of the control and experimental arms (total target accrual of 30 patients, 15 in each arm) have reached second-look laparoscopy (SLL), the study's primary assessment point for surgical MRD. Compared to control, preliminary results show a deeper antitumor response, as demonstrated by a lower MRD-positive rate, in patients treated with IMNN-001 (44% vs. 67%), a higher rate of circulating tumor DNA (ctDNA) clearance (87.5% vs. 62.5%), and a numerically higher rate of patients achieving no evidence of disease (NED) following frontline therapy (100% vs. 56%).

A review of the MRD study accomplishments was conducted in the third quarter of 2025, and it was determined that study goals contributing to the IMNN-001 development plan and Break Through Cancer study objectives can be accomplished in a trial of 30 patients. A decision was made in November 2025 to complete enrollment of the trial once the ITT population has reached 30 patients.

As of June 30, 2026, the ITT population was twenty-four (24) patients randomized and treated in the study at the University of Texas MD Anderson Cancer Center and Memorial Sloan Kettering Cancer Center. The Stephenson Cancer Center at University of Oklahoma has been added as an additional clinical site for this study and is open to recruitment.

PLACCINE DNA VACCINE MODALITY: IMNN-101

Imunon's PLACCINE DNA vaccine modality ("PLACCINE") is a novel DNA-based, investigational vaccine for preventing or treating infections from a broad range of infectious agents and is We believe it is adaptable to creating vaccines for a multitude of pathogens, including emerging pathogens leading to pandemics as well as infectious diseases that have yet to be effectively addressed with current vaccine technologies. This flexible vaccine platform is well supported by an established supply chain to produce any plasmid vector and its assembly into a respective vaccine formulation.

The need for new vaccine technologies is urgent. Since 1980, more than 80 pathogenic viruses have been discovered, yet fewer than 4% have a commercially available prophylactic vaccine. We have engaged with the Biomedical Advanced Research and Development Authority ("BARDA"), a division of the U.S. Department of Health and Human Services, to consider certain pathogens BARDA has identified as the most urgent and the most important.

PLACCINE is an extension of the Company's synthetic, non-viral TheraPlas delivery technology currently in development for the treatment of late-stage ovarian cancer with IMNN-001. Imunon's proprietary multifunctional DNA vaccine technology concept is built on the flexible PLACCINE technology platform that is amenable to rapidly responding to the SARS-CoV-2 virus, as well as possible future mutations of SARS-CoV-2, other future pandemics, emerging bioterrorism threats, and novel infectious diseases. Imunon's extensive experience with TheraPlas suggests that the PLACCINE-based nanoparticles are stable at storage temperatures of 4°C to 25°C, making vaccines developed on this platform easily suitable for broad world-wide distribution.

Imunon's vaccine approach is designed to optimize the quality of the immune response dictating the efficiency of pathogen clearance and patient recovery. Imunon has taken a multivalent approach in an effort to generate an even more robust immune response that not only results in a strong neutralizing antibody response, but also a more robust and durable T-cell response. Delivered with Imunon's synthetic polymeric system, the proprietary DNA plasmid is protected from degradation, and its cellular uptake is facilitated.

Our Next Generation Vaccine Initiative

Imunon's vaccine candidate comprises a single plasmid vector containing the DNA sequence encoding multiple SARS-CoV-2 antigens. Delivery will be evaluated intramuscularly, intradermally, or subcutaneously with a non-viral synthetic DNA delivery carrier that facilitates vector delivery into the cells of the injected tissue and has potential immune adjuvant properties. Unique designs and formulations of Imunon vaccine candidates may offer several potential key advantages. The synthetic polymeric DNA carrier is an important component of the vaccine composition as it has the potential to facilitate the vaccine immunogenicity by improving vector delivery and, due to potential adjuvant properties, attract professional immune cells to the site of vaccine delivery.

Future vaccine technology will need to address viral mutations and the challenges of efficient manufacturing, distribution, and storage. We believe the adaptation of our TheraPlas technology, PLACCINE, has the potential to meet these challenges. Our approach is summarized as a DNA vaccine technology platform characterized by a single plasmid DNA with multiple coding regions. The plasmid vector is designed to express multiple pathogen antigens. It is delivered via a synthetic delivery system and has the potential to be easily modified to create vaccines against a multitude of infectious diseases, addressing:

	●	Viral Mutations: PLACCINE may offer broad-spectrum and mutational resistance (variants) by targeting multiple antigens on a single plasmid vector.
	●	Durable Efficacy: PLACCINE delivers a DNA plasmid-based antigen that could result in durable antigen exposure and a robust vaccine response to viral antigens.
	●	Storage & Distribution: PLACCINE allows for stability that is compatible with manageable vaccine storage and distribution.
	●	Simple Dosing & Administration: PLACCINE is a synthetic delivery system that should require a simple injection that does not require viruses or special equipment to deliver its payload.

In March 2023, the Company filed with the FDA a pre-IND package in advance of beginning human testing of a SARS-CoV-2 seasonal booster vaccine. In July 2023, the FDA confirmed in a written response our plug and play strategy agreeing that a platform approach to pre-clinical toxicology testing with reference to updated SARS-CoV-2 genes that align with current variant of concern may be used without additional need for toxicology studies. This demonstrated the flexibility and versatility of our platform, which allows for the rapid production and development of any vaccine by simply changing the antigen coding cassette.

On April 18, 2024, the Company announced that it received clearance from the FDA to begin a Phase I clinical trial with a seasonal COVID-19 booster vaccine. The Company filed an Investigational New Drug (IND) application for IMNN-101 in late February. The primary objectives of the Phase I study were to evaluate safety, tolerability, neutralizing antibody response, and the vaccine's durability (duration of immunogenicity) in healthy adults. Secondary objectives of the study included evaluating the ability of the IMNN-101 vaccine to elicit binding antibodies and cellular responses and their associated durability. The Phase I study enrolled 24 subjects to evaluate three escalating doses of IMNN-101. For this study, IMMN-101 has been designed to protect against the SARS-CoV-2 Omicron XBB1.5 variant, in accordance with the FDA's Vaccines and Related Biological Products Advisory Committee's June 2023 announcement of the framework for updated COVID-19 doses.

In February 2025, the Company announced topline safety and immunogenicity data from ongoing analyses of results from the Company's Phase 1 proof-of-concept clinical trial of IMNN-101. The Phase 1 study was conducted in 24 healthy volunteers as a seasonal COVID-19 vaccine, targeting the SARS-CoV-2 Omicron XBB1.5 spike antigen. IMNN-101 was administered as a single dose vaccine without a booster dose in study participants who were previously vaccinated against the Omicron XBB1.5 variant. Results demonstrated that IMNN-101 is safe and well-tolerated with no serious adverse effects. IMNN-101 induced a persistent 2- to 4-fold increase in serum neutralizing antibody (NAb) titers from baseline through Week 4, further increasing NAb titers between Week 2 and Week 4. The immune response was observed against the XBB1.5 variant and many newer variants following treatment, demonstrating the IMNN-101 vaccine's cross-reactivity.

On May 15, 2025, the Company announced new data from its first Phase 1 proof-of-concept clinical trial of IMNN-101. Results in 24 healthy volunteers demonstrated IMNN-101's durability of protection at six months after a single dose targeting the SARS-CoV-2 Omicron XBB1.5 spike antigen variant. IMNN-101 induced up to a 3-fold median increase in the serum neutralizing antibody (NAb) titers from baseline at six months, with initial evidence of a stronger immune response in two higher dose cohorts (2.0 mg and 1.0 mg) compared to a lower dose cohort (0.5 mg). The highest observed increase among the participating volunteers was 8-fold from baseline. IMNN-101 continues to be safe and well tolerated, with no serious adverse effects reported.

In the Phase 1 trial, designed to demonstrate the advantages of Imunon's technology compared to approved messenger RNA (mRNA) vaccines, IMNN-101 was administered as a single dose vaccine without a booster dose in study participants who were previously vaccinated against the Omicron XBB1.5 variant. Study participants had high baseline immune characteristics, presumably from prior infection and multiple previous vaccinations against COVID-19, and ongoing infection. Modest increases in T-cell responses were observed in trial participants who received multiple immunizations prior to the study. Results from the Phase 1 trial build on data previously announced in February 2025, which showed IMNN-101 induced a persistent 2- to 4-fold increase in serum NAb titers from baseline through Week 4, further increasing NAb titers between Week 2 and Week 4. The immune response was also observed against the XBB1.5 variant and many newer variants following treatment, demonstrating the IMNN-101 vaccine's cross-reactivity. The Phase 1 clinical data of IMNN-101 is consistent with strong evidence of immunogenicity and protection for the PlaCCine platform in rodents and non-human primates, with prior preclinical results showing comparable protection efficiency (>95%) to a commercial mRNA vaccine in non-human primates.

The Phase I trial was designed to establish proof of concept (PoC) for IMNN-101 as an advancement in vaccine technology. Imunon intends to seek partnership and/or business development opportunities to develop the scientific and business case for IMNN-101 as a future vaccine to address viral mutations. The Company has paused further development of this study at the current time.

Business Plan and Going Concern Risk

We have not generated and do not expect to generate any revenue from product sales in the next several years, if at all. An element of our business strategy has been to pursue, as resources permit, the research and development of a range of drug candidates for a variety of indications. We may also evaluate licensing products from third parties to expand our current product pipeline. This is intended to allow us to diversify the risks associated with our research and development expenditures. To the extent we are unable to maintain a broad range of drug candidates, our dependence on the success of one or a few drug candidates would increase and would have a more significant impact on our financial prospects, financial condition, and market value. We may also consider and evaluate strategic alternatives, including investment in, or acquisition of, complementary businesses, technologies, or products. Drug research and development is an inherently uncertain process and there is a high risk of failure at every stage prior to approval. The timing and the outcome of clinical results are extremely difficult to predict. The success or failure of any preclinical development and clinical trial can have a disproportionately positive or negative impact on our results of operations, financial condition, prospects, and market value.

Our current business strategy includes the possibility of entering into collaborative arrangements with third parties to complete the development and commercialization of our drug candidates. In the event that third parties are contracted to manage the clinical trial process for one or more of our drug candidates, the estimated completion date would largely be under the control of that third party rather than us. We cannot forecast with any degree of certainty which proprietary products or indications, if any, will be subject to future collaborative arrangements, in whole or in part, and how such arrangements would affect our development plan or capital requirements. We may also apply for subsidies, grants or government or agency-sponsored studies that could reduce our development costs. However, we cannot forecast with any degree of certainty whether we will be selected to receive any subsidy, grant or governmental funding.

As of June 30, 2026, the Company had $6.9 million in cash and cash equivalents to fund its operations. The Company's primary sources of cash have been proceeds from the issuance and sale of its common stock, including via its at-the-market ("ATM") program and other funding transactions including preferred stock and debt financings. There can be no assurance that the Company will be able to do so in the future on a timely basis on terms acceptable to the Company, or at all. The Company has not yet commercialized any of its product candidates. Even if the Company commercializes one or more of its product candidates, it may not become profitable in the near term. The Company's ability to achieve profitability depends on several factors, including its ability to obtain regulatory approval for its product candidates, successfully complete any post-approval regulatory obligations and successfully commercialize its product candidates alone or in partnership.

Such conditions raise substantial doubts about the Company's ability to continue as a going concern. Based on the above, management has determined there is substantial doubt regarding our ability to continue as a going concern. The report of our independent registered public accounting firm for the year ended December 31, 2025, includes an explanatory paragraph which expresses substantial doubt about our ability to continue as a going concern. See also Note 2 to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q.

Management's plan includes raising funds from outside investors through the issuance and sale of its common stock, including the use of its at-the-market ("ATM") program and other potential funding transactions. However, as mentioned above, there can be no assurance such funding will be available to the Company or that it will be obtained on terms favorable to the Company or will provide the Company with sufficient funds to meet its objectives. The Company's financial statements do not include any adjustments relating to the recoverability and classification of assets, carrying amounts or the amount and classification of liabilities that may be required should the Company be unable to continue as a going concern.

As a result of the risks and uncertainties discussed in the 2025 Annual Report filed on March 31, 2026 with the SEC, among others, we are unable to estimate the duration and completion costs of our research and development projects or when, if ever, and to what extent we will receive cash inflows from the commercialization and sale of a product if one of our drug candidates receives regulatory approval for marketing, if at all. Our inability to complete any of our research and development activities, preclinical studies or clinical trials in a timely manner or our failure to enter into collaborative agreements when appropriate could significantly increase our capital requirements and could adversely impact our liquidity. While our estimated future capital requirements are uncertain and could increase or decrease as a result of many factors, including the extent to which we choose to advance our research and development activities, preclinical studies and clinical trials, or whether we are in a position to pursue manufacturing or commercialization activities, we will need significant additional capital to progress our drug candidates through development and clinical trials, obtain regulatory approvals and manufacture and commercialize approved products, if any. We do not know whether we will be able to access additional capital when needed or on terms favorable to us or our stockholders. Our inability to raise additional capital, or to do so on terms reasonably acceptable to us, would jeopardize the future success of our business.

Financing Overview

Equity, Debt and Other Forms of Financing

During 2025 and for the six months ended June 30, 2026, we issued a total of 3.5 million shares of common stock for approximately $15.9 million in gross proceeds. Subsequent to June 30, 2026 and through the date of this Quarterly Report on Form 10-Q, we issued another 162,804 shares of common stock under the at-the-market ("ATM") program for net proceeds of $298,494.

On May 15, 2024, the Company filed with the SEC a shelf registration statement on Form S-3 (the "2024 Registration Statement") for the offer and sale of up to $75 million of its securities. The 2024 Registration Statement was declared effective on May 22, 2024. The 2024 Registration Statement is intended to provide the Company with flexibility to raise capital in the future for general corporate purposes. As noted in the prospectus supplement that the Company filed on July 22, 2025, the aggregate market value of our outstanding Common Stock held by non-affiliates was approximately $79,075,969, based on 2,121,895 shares of Common Stock outstanding as of July 22, 2025, of which 2,100,291 shares were held by non-affiliates, and a price of $37.65 per share, which was the last reported sale price of our Common Stock on The Nasdaq Stock Market LLC ("Nasdaq") on June 2, 2025. As a result, our public float increased above $75 million, and we were no longer subject to the limitations contained in General Instruction I.B.6 of Form S-3. Upon the filing of Form 10-K on March 31, 2026, the Company's public float was less than $75 million, and as a result, the Company is currently subject to the limitations contained in General Instruction I.B.6 of Form S-3.

Preferred Stock and Notes Payable

On June 2, 2026, the Company entered into a Securities Purchase Agreement (the "June 2026 Securities Purchase Agreement") with Streeterville Capital, LLC (the "Investor"), providing for the issuance and sale by the Company, and the purchase by the Investor, of (i) 250 shares (the "Preferred Shares") of the Company's Series A Preferred Stock, par value $0.01 per share (the "Series A Preferred Stock"), at an issued value of $10,000 per share and a stated value of $12,000 per share, for aggregate gross proceeds of $2,500,000; (ii) a Secured Promissory Note A-1 in an original principal amount of $2,720,000 (the "A-1 Note"); and (iii) a Secured Promissory Note B in an original principal amount of $5,000,000 (the "B Note" and together with the A-1 Note, the "Notes"). The transactions contemplated by the Securities Purchase Agreement (collectively, the "Transaction") closed on June 3, 2026 (the "Closing Date"). At closing, the Company received $10,000,000 from the Investor, $5,000,000 of which was deposited into a bank account owned by a wholly owned subsidiary of the Company as cash collateral for the Notes (the "Cash Collateral Account"). The $5,000,000 amount is classified as restricted cash on the balance sheet. The obligations under the Notes are secured by substantially all of the assets of the Company, other than its intellectual property assets, and are guaranteed by certain of the Company's subsidiaries. The Company intends to utilize the $5,000,000 of proceeds from the closing of the Transaction, along with any proceeds later released from the Cash Collateral Account, for general corporate purposes, including research and development activities, capital expenditures and working capital. The Company agreed to pay the placement agents for financing a fee of 7.0% of the gross proceeds received by the Company in connection with the Transaction.

If the aggregate outstanding balance of the A-1 Note or the aggregate number of outstanding Preferred Shares is reduced by $2,000,000 (or, if less than $2,000,000, the entire remaining outstanding balance of the A-1 Note), the Company will have the right to exchange up to $1,000,000, plus interest (or, if less than $1,000,000, the entire remaining amount of the B Note, or such other amount as the parties mutually agree), of the B Note for a new secured note in the same form and having the same terms as the A-1 Note (each, a "Note Exchange"). Upon the completion of each Note Exchange, an amount of cash equal to the amount of the B Note exchanged in such Note Exchange will be released from the Cash Collateral Account to the Company. The A-1 Note will bear interest at 8% per annum and will mature 18 months following the Closing Date.

The B Note will bear interest at 5% per annum and will mature 18 months following the Closing Date. The Notes can be prepaid by the Company in whole or in part at any time, subject to a 10% prepayment premium on any principal amounts prepaid. Beginning six months after the Closing Date, the Investor may redeem up to $250,000 of the principal amount of the A-1 Note each calendar month. In addition, on any trading day when the Company's common stock trades at a price that is at least 15% greater than the "Minimum Price" as defined under Nasdaq Stock Market LLC Rule 5635(d), the Investor may redeem an additional principal amount of the Notes equal to 5% of the trading volume of the Company's common stock on such trading day. The Company will be subject to customary covenants while the Notes remain outstanding. The Notes also contain customary events of default, the occurrence of which would permit the Investor to accelerate the obligations under the Notes and exercise remedies against any collateral (including amounts on deposit in the Cash Collateral Account) or guarantees in respect of the Notes. In addition, following the occurrence of an event of default, the interest rate of each Note would increase to the lesser of 15% per year or the maximum rate permitted by applicable law.

Broker fees totaling $350,000 were allocated between the preferred stock and Note A based on their values. Issuance costs, which primarily include legal fees totaling $292,310, were allocated between the preferred stock and Note A and Note B based on the face value of each financial instrument and will be amortized over the life of the instruments. The original issuance discount associated with Note A was recorded as a contra-liability to be amortized over the life of the note. The Company concluded the preferred stock was permanent equity and is included in Stockholder's Equity for as of June 30, 2026.

Significant Accounting Policies

Our significant accounting policies are more fully described in Note 1 to our consolidated financial statements included in our 2025 Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC on March 31, 2026. See Note 3 to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q.

As a clinical-stage biopharmaceutical company, our business, and our ability to execute our strategy to achieve our corporate goals are subject to numerous risks and uncertainties. Material risks and uncertainties relating to our business and our industry are described in "Item 1A. Risk Factors" under "Part II: Other Information" included herein.

FINANCIAL REVIEW FOR THE THREE MONTHS AND SIX MONTHS ENDED JUNE 30, 2026 AND 2025

Results of Operations

Our net loss was $2.8 million and $7.1 million for the three-months and six-months ended June 30, 2026, respectively, compared to a net loss of $2.7 million and $6.8 million, respectively for the same periods of 2025.

With $6.9 million in cash and cash equivalents at June 30, 2026, such conditions raise substantial doubts about the Company's ability to continue as a going concern. Based on the above, management has determined there is substantial doubt regarding our ability to continue a going concern.

Management's plan includes raising funds from the issuance and sale of its common stock via its ATM program and other funding transactions. However, as mentioned above, there is no assurance such funding will be available to the Company or that it will be obtained on terms favorable to the Company or will provide the Company with sufficient funds to meet its objectives. The Company's financial statements do not include any adjustments relating to the recoverability and classification of assets, carrying amounts or the amount and classification of liabilities that may be required should the Company be unable to continue as a going concern.

The Company operates in one segment for the research and development of our product candidates. The Company's chief operating decision maker ("CODM") has been identified as the Chief Executive Officer and President, who reviews operating results to make decisions about allocating resources and assessing performance for the entire Company based on consolidated financial information. Consequently, we view the entire organization as one reportable segment and the strategic purpose of all operating activities (including general & administrative expenses) is to support that one segment. As a pre-revenue research and development company, the CODM evaluates company-wide performance and allocates resources based on non-financial research and development milestones achieved, and to a lesser extent, financial measures of performance such as clinical development (research and development expenses) and general and administrative expenses incurred. Our CODM does not generally evaluate our performance using asset or historical cash flow information.

		For the three months ended June 30,
		(In thousands)								Change Increase (Decrease)
		2026				2025
Operating Expenses:
Clinical Research
OVATION Trials (Phase 2 & 3)		$	174			$	133			$	41				30.8	%
MRD Study			63				35				28				80.0	%
PlaCCine Vaccine Phase 1 Trial			-				25				(25	)			(100.0	)%
Other Clinical and Regulatory			338				328				10				3.0	%
Subtotal			575				521				54				10.4	%
Non-Clinical R&D and CMC
Manufacturing & Clinical Supply costs			890				706				184				26.1	%
Subtotal			890				706				184				26.1	%
Research and development expenses			1,465				1,227				238				19.4	%
General and administrative expenses			1,327				1,541				(214	)			(13.9	)%
Total operating expenses			2,792				2,768				24				0.9	%
Loss from operations		$	(2,792	)		$	(2,768	)		$	24				(0.9	)%

Research and Development Expenses

Research and development ("R&D") expenses were $1.5 million in the second quarter of 2026 compared to $1.2 million in the same period of 2025. Clinical costs associated with the OVATION studies were $0.2 million in the second quarter of 2026 compared to $0.1 million for the same period of 2025. During 2025, the Company initiated enrollment in the OVATION 3 Study and closed out the OVATION 2 study. In connection with the closeout of the OVATION 2 study, approximately $0.6 million of expenses previously accrued by the Company had been written down. Other clinical and regulatory costs remained relatively unchanged at $0.3 million in each of the second quarters of 2026 and 2025. Manufacturing and clinical supply costs associated with the development and testing of IMNN-001 to support the OVATION and MRD programs were $0.9 million in the second quarter of 2026 compared to $0.7 million in same period of 2025, and the major contribution to this increase relates to the advancement of OVATION-3.

General and Administrative Expenses

General and administrative expenses decreased to $1.3 million in the second quarter of 2026 compared to $1.5 million in the same period of 2025. This decrease is related to a decrease in outside professional fees during the second quarter of 2026.

Other income/expense is insignificant for each of the second quarters of 2026 and 2025.

		For the six months ended June 30,
		(In thousands)								Change Increase (Decrease)
		2026				2025
Operating Expenses:
Clinical Research
OVATION Trials (Phase 2 & 3)		$	347			$	309			$	38				12.3	%
MRD Study			96				73				23				31.5	%
PlaCCine Vaccine Phase 1 Trial			-				83				(83	)			(100.0	)%
Other Clinical and Regulatory			929				901				28				3.1	%
Subtotal			1,372				1,366				6				0.4	%
Non-Clinical R&D and CMC
Manufacturing & Clinical Supply			2,430				2,026				404				19.9	%
Subtotal			2,430				2,026				404				19.9	%
Research and development expenses			3,802				3,392				410				12.1	%
General and administrative expenses			3,296				3,521				(225	)			(6.4	)%
Total operating expenses			7,098				6,913				185				2.7	%
Loss from operations		$	(7,098	)		$	(6,913	)		$	(185	)			(2.7	)%

Research and Development Expenses

Research and development ("R&D") expenses were $3.8 million in the first half of 2026 compared to $3.4 million in the same period of 2025. Clinical costs associated with the OVATION studies were $0.3 million in each of the first halves of 2026 and 2025. During 2025, the Company initiated enrollment in the OVATION 3 Study and closed out the OVATION 2 study. In connection with the closeout of the OVATION 2 study, approximately $0.6 million of expenses previously accrued by the Company had been written down. Other clinical and regulatory costs remained relatively unchanged at $0.9 million in each of the first halves of 2026 and 2025. Manufacturing and clinical supply costs associated with the development and testing of IMNN-001 to support the OVATION and MRD programs were $2.4 million in the first half of 2026 compared to $2.0 million in same period of 2025. The increase in 2026 includes severance costs.

General and Administrative Expenses

General and administrative expenses decreased to $3.3 million in the first half of 2026 compared to $3.5 million in the same period of 2025.

Other income/expense was insignificant in each of the first halves of 2026 and 2025.

FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES

Since inception, we have incurred significant losses and negative cash flows from operations. We have financed our operations primarily through the net proceeds from the sales of equity, credit facilities and amounts received under product licensing agreements. The process of developing IMNN-001 and other drug candidates and technologies requires significant research and development work and clinical trial studies, as well as significant manufacturing and process development efforts. We expect these activities, together with our general and administrative expenses, to result in significant operating losses for the foreseeable future. Our expenses have significantly and regularly exceeded our income, and we had an accumulated deficit of $428 million at June 30, 2026.

At June 30, 2026, we had total current assets of $8.7 million and current liabilities of $4.8 million, resulting in net working capital of $3.9 million. At June 30, 2026, we had cash and cash equivalents of $6.9 million and $5.0 million in restricted cash. At December 31, 2025, we had total current assets of $10.7 million and current liabilities of $4.6 million, resulting in net working capital of $6.1 million. We have substantial future capital requirements to continue our research and development activities and advance our drug candidates through various development stages. The Company believes these expenditures are essential for the commercialization of its technologies.

Net cash used in operating activities for the first six months of 2026 was $7.0 million. Net cash associated with investing activities was insignificant during the first six months of 2026.

The Company will continue to seek additional capital through additional public or private equity offerings, debt financing, additional strategic alliance and licensing arrangements, collaborative arrangements, or some combination of these financing alternatives. If we raise additional funds through the issuance of equity securities, the percentage ownership of our stockholders could be significantly diluted, and the newly issued equity securities may have rights, preferences, or privileges senior to those of the holders of our common stock. If we raise funds through the issuance of debt securities, those securities may have rights, preferences, and privileges senior to those of our common stock. If we seek strategic alliances, licenses, or other alternative arrangements, such as arrangements with collaborative partners or others, we may need to relinquish rights to certain of our existing or future technologies, drug candidates, or products we would otherwise seek to develop or commercialize on our own, or to license the rights to our technologies, drug candidates, or products on terms that are not favorable to us. The overall status of the economic climate could also result in the terms of any equity offering, debt financing, or alliance, license, or other arrangement being even less favorable to us and our stockholders than if the overall economic climate were stronger. We also will continue to look for government sponsored research collaborations and grants to help offset future anticipated losses from operations and, to a lesser extent, interest income.

If adequate funds are not available through either the capital markets, strategic alliances, or collaborators, we may be required to delay or, reduce the scope of, or terminate our research, development, clinical programs, manufacturing, or commercialization efforts, or effect additional changes to our facilities or personnel, or obtain funds through other arrangements that may require us to relinquish some of our assets or rights to certain of our existing or future technologies, drug candidates, or products on terms not favorable to us.

Such conditions raise substantial doubts about the Company's ability to continue as a going concern. Management's plan includes raising funds from the issuance and sale of its common stock via its ATM program and other funding transactions. However, as mentioned above, there is no assurance such funding will be available to the Company or that it will be obtained on terms favorable to the Company or will provide the Company with sufficient funds to meet its objectives. The Company's financial statements do not include any adjustments relating to the recoverability and classification of assets, carrying amounts or the amount and classification of liabilities that may be required should the Company be unable to continue as a going concern.

Off-Balance Sheet Arrangements and Contractual Obligations

None.