MNPR

WILMETTE, Ill., Aug. 12, 2026 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical‐stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, today announced second quarter 2026 financial results and provided business updates. Recent Program Developments ALXN1840 for Wilson Disease – Rolling NDA Submission Initiated On July 22, 2026, Monopar announced it had initiated the rolling submission of a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) for ALXN1840. The FDA authorized Monopar to submit the NDA on a rolling basis, allowing completed sections of the application to be submitted and reviewed while the Company finalizes the remaining sections. The Company anticipates completing the NDA submission within the next few months. On June 30, 2026, the FDA granted Rare Pediatric Disease (RPD) designation to ALXN1840. The FDA grants RPD designation to therapies intended to treat serious or life-threatening diseases that primarily affect children from birth to 18 years of age. The designation provides the Company with the potential at the time of NDA approval to receive a pediatric Priority Review Voucher (PRV), which can be used to obtain priority review of a subsequent marketing application or sold or transferred to another sponsor. On June 28, 2026, Monopar presented new analyses from the Phase 3 FoCus randomized controlled clinical trial of ALXN1840 (tiomolibdate choline, TMC) at the 12th Congress of the European Academy of Neurology (EAN 2026). The poster presentation, titled “Greater clinical benefit with tiomolibdate choline versus standard-of-care in neurologic Wilson disease patients in the Phase 3 FoCus Trial,” showed significant neurologic improvement over time and greater global clinical improvement versus standard-of-care therapy in Wilson disease patients with neurologic symptoms at baseline. An oral late-breaker presentation on April 19, 2026, at the American Academy of Neurology (AAN) Annual Meeting also highlighted new analyses from the Phase 3 FoCus trial demonstrating greater neurologic benefit with ALXN1840 compared with standard of care (SoC) in Wilson patients with neurologic symptoms. On May 29, 2026, Monopar presented Phase 2 ALXN1840-WD-205 data at the European Association for the Study of the Liver (EASL) Congress 2026. The oral presentation, titled “ALXN1840 (tiomolibdate choline) stabilizes liver disease and improves neurological symptoms as well as quality-of-life in treatment-experienced Wilson disease patients,” demonstrated that, in a heavily pre-treated Wilson disease population, ALXN1840 can stabilize liver disease and provide clinically meaningful improvements in neurologic symptoms and quality of life. These findings complement the increased copper mobilization and clinical improvement shown in the completed Phase 3 pivotal trial (Study WTX101-301). On May 19, 2026, Hepatology Communications published the manuscript titled “Effect of tiomolibdate choline on copper balance in patients with Wilson disease: an open-label Phase 2 trial.” This peer-reviewed publication reported results from the Phase 2 ALXN1840-WD-204 study (NCT04573309) and demonstrated that ALXN1840 produced a rapid, statistically significant, and sustained improvement in daily copper balance in patients with Wilson disease, driven by increased fecal copper excretion. Susan Rodriguez, who joined as Chief Commercial and Strategy Officer in March 2026, is leading preparations for a potential commercial launch. Commercial readiness has been further strengthened by the appointment of Nicole Sweeny, former Chief Commercial Officer of KalVista Pharmaceuticals, to the Board of Directors and the additions of Sharon Funk as Senior Vice President of Sales and Marketing, and Daniel Olmstead as Senior Vice President of Market Access, Distribution and Patient Services. Financial Results for the Second Quarter Ended June 30, 2026, Compared to the Second Quarter Ended June 30, 2025 Cash and Net Loss Cash, cash equivalents and investments as of June 30, 2026, were $134.3 million. Monopar expects its current funds to support operations through at least December 31, 2027, including: (1) regulatory and potential commercial activities for ALXN1840; (2) continued development of MNPR-101 programs; and (3) internal research and development. Net loss for the second quarter of 2026 was $5.3 million, or $0.62 per share, compared to net loss of $2.5 million, or $0.35 per share, for the second quarter of 2025. Research and Development (“R&D”) Expenses R&D expenses for the second quarter of 2026 were $4,766,832 compared to $1,730,000 for the second quarter of 2025. This represents an increase of $3,036,831 primarily attributed to (1) a $2,026,851 increase in R&D contractor and consulting expenses, (2) a $721,228 increase in R&D personnel expenses including stock-based compensation and (3) a net increase of $288,752 in other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the second quarter of 2026 were $1,877,831 compared to $1,504,295 for the second quarter of 2025. This represents an increase of $373,536 primarily attributed to (1) a $234,113 increase in G&A personnel expenses including stock-based compensation, (2) a $198,988 increase in G&A contractor and consulting expenses and (3) a net decrease of $59,565 in other G&A expenses. Other Income (Loss) Other income for the second quarter of 2026 was $32,158 compared to $0 for the second quarter of 2025. The increase is primarily attributable to an adjustment to a vendor invoice recognized during the current period. Interest Income (Loss) Interest income for the second quarter of 2026 was $1,299,205 compared to $780,769 for the second quarter of 2025. The increase is attributed to interest earned on U.S. Treasury securities and commercial paper and to higher bank balances in 2026 due to the net proceeds of approximately $91.9 million from the September 2025 capital raise. About Wilson Disease Wilson disease is a rare genetic disorder that affects approximately 1 in 30,000 people worldwide. It is caused by mutations in the ATP7B gene, which impairs the body’s ability to excrete copper. It is characterized by toxic accumulation of copper in the liver, brain, and other organs, leading to progressive and potentially fatal outcomes if untreated. About ALXN1840 ALXN1840 (tiomolibdate choline, TMC) is a novel first-in-class albumin tripartite complex (ATC) activator under investigation for the treatment of Wilson disease. ALXN1840 rapidly mobilizes and tightly sequesters excess copper in stable ATCs, suppressing copper’s redox reactivity, limiting oxidative damage, and blocking its transport across the blood–brain barrier. Clinical data have also demonstrated that ALXN1840 improves copper balance by increasing fecal copper excretion. In the pivotal Phase 3 trial, ALXN1840 met its primary endpoint, demonstrating rapid and sustained copper mobilization that was significantly greater than standard of care over 48 weeks in both previously treated and treatment-naïve patients. Across the ALXN1840 clinical development program, durable clinical improvement and favorable tolerability were observed across 645 patient-years of follow-up in 266 patients, with a well-characterized safety profile. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including MNPR-101-Zr (Phase 1) for imaging advanced cancers along with MNPR-101-Lu (Phase 1a) and MNPR-101-Ac (late preclinical) for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/quarterly-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning the following: that the Company anticipates completing the NDA submission within the next few months; that the RPD designation provides the Company with the potential at the time of NDA approval to receive a pediatric Priority Review Voucher (PRV), which can be used to obtain priority review of a subsequent marketing application or sold or transferred to another sponsor; that Susan Rodriguez is leading preparations for a potential commercial launch; and that Monopar expects its current funds to support operations through at least December 31, 2027. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar has initiated related to ALXN1840, including whether the FDA will accept the NDA for filing and the outcome of any review thereof; uncertainties related to whether the ALXN1840 marketing application will receive marketing approval and, if approved, whether Monopar will be awarded a Priority Review Voucher; whether, if awarded, the Priority Review Voucher can be used to obtain priority review of a subsequent marketing application or sold or transferred to another sponsor; the continued authorization and availability of the Rare Pediatric Disease Priority Review Voucher program; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar’s filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc.Investor RelationsQuan VuChief Financial [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Ill., May 14, 2026 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical‐stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, today announced first quarter 2026 financial results and provided business updates. Recent Program Developments ALXN1840 for Wilson Disease – NDA Submission on Track for Mid-2026 In April 2026, Monopar presented new analyses from the randomized controlled Phase 3 FoCus trial of ALXN1840 (tiomolibdate choline, TMC) at the American Academy of Neurology (AAN) Annual Meeting 2026. The late-breaker oral and poster presentation, titled “Greater clinical benefit with tiomolibdate choline versus standard-of-care in neurologic Wilson disease patients in the Phase 3 FoCus Trial,” demonstrated greater neurologic benefit of ALXN1840 versus standard of care (“SoC”) in Wilson disease patients with neurologic symptoms at baseline. These results from the FoCus trial will also be presented in a poster at the 12th Congress of the European Academy of Neurology (EAN) in Geneva, Switzerland, June 27-30, 2026. Dr. Aurélia Poujois, MD, PhD, of the Adolphe de Rothschild Foundation Hospital, a leading authority in Wilson disease, will present on June 28 at 12:50 CEST. Monopar will also present at the European Association for the Study of the Liver (EASL) Congress 2026, a leading global forum for liver disease research. The presentation, titled “Tiomolibdate choline stabilizes liver disease and improves neurological symptoms as well as quality-of-life in treatment-experienced Wilson disease patients,” will be presented by UC Davis Professor Dr. Valentina Medici, MD, MAS, FAASLD. EASL Congress 2026 will take place in Barcelona, Spain, from May 27-30, 2026, with Dr. Medici presenting on May 29 at 08:45 CEST. The Company remains on track with its plans to submit the New Drug Application (“NDA”) to the U.S. Food and Drug Administration (“FDA”) in mid-2026. Susan Rodriguez, the Company’s Chief Commercial and Strategy Officer who joined in March 2026, is leading commercial readiness activities in preparation for a potential launch. Financial Results for the First Quarter Ended March 31, 2026, Compared to the First Quarter Ended March 31, 2025 Cash and Net Loss Cash, cash equivalents and investments as of March 31, 2026, were $137.5 million. Monopar expects its current funds to support operations at least through December 31, 2027, including: (1) regulatory and potential commercial activities for ALXN1840; (2) continued development of MNPR-101 programs; and (3) internal research and development. Net loss for the first quarter of 2026 was $3.9 million, or $0.46 per share, compared to net loss of $2.6 million, or $0.38 per share, for the first quarter of 2025. Research and Development (“R&D”) Expenses R&D expenses for the first quarter of 2026 were $3,487,247 compared to $1,643,375 for the first quarter of 2025. This represents an increase of $1,843,872 primarily attributed to (1) an $825,972 increase in R&D contractor and consulting expenses, (2) a $799,593 increase in R&D personnel expenses including stock-based compensation and (3) a net increase of $218,307 in other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the first quarter of 2026 were $1,738,006 compared to $1,578,442 for the first quarter of 2025. This represents an increase of $159,564 primarily attributed to (1) a $134,599 increase in G&A personnel expenses including stock-based compensation and (2) a net increase of $24,965 in other G&A expenses. Interest Income Interest income for the first quarter of 2026 was $1,332,203 compared to $596,845 for the first quarter of 2025. The increase is attributed to interest earned on U.S. Treasury securities and commercial paper, and higher bank balances in 2026, due to the net proceeds of approximately $91.9 million from the September 2025 capital raise. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including MNPR-101-Zr (Phase 1) for imaging advanced cancers along with MNPR-101-Lu (Phase 1a) and MNPR-101-Ac (late preclinical) for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/quarterly-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning: that the Company remains on track with its plans to submit the New Drug Application (“NDA”) to the U.S. Food and Drug Administration (“FDA”) in mid-2026; that Susan Rodriguez is leading commercial readiness activities in preparation for a potential launch; and that Monopar expects its current funds to support operations at least through December 31, 2027. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840, including the submission of the NDA to the FDA, and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, pre-commercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar’s filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Ill., March 27, 2026 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar,” the “Company,” “we”) (Nasdaq: MNPR), a clinical-stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, today announced the fourth quarter and full-year 2025 financial results and provided a summary of recent developments. “2025 was a productive year for Monopar, marked by multiple ALXN1840 data presentations, an important publication, a strengthened balance sheet and continued progress toward a planned New Drug Application submission for ALXN1840 in Wilson disease,” said Chandler Robinson, MD, Chief Executive Officer of Monopar. “We also recently strengthened our leadership team with the addition of Susan Rodriguez as Chief Commercial and Strategy Officer as we prepare for the potential launch of ALXN1840. We are grateful to the Wilson disease patients and their families whose experiences have informed our efforts to advance ALXN1840.” Recent Program Developments ALXN1840 – NDA Submission Planned for Mid-2026 for Wilson Disease Wilson disease is a rare genetic disorder characterized by impaired copper elimination, resulting in toxic accumulation in organs such as the liver and brain. ALXN1840 binds and mobilizes copper and has a novel mechanism of action as an albumin tripartite complex (“ATC”) activator that differentiates it from currently available first-line therapies. Based on recent interactions with the U.S. Food and Drug Administration (“FDA”), Monopar plans to submit a New Drug Application (“NDA”) for ALXN1840 in mid-2026. ALXN1840 updates: EASL 2025: Presented pooled long-term efficacy and safety data (n=255; median treatment duration 2.63 years), with additional safety data (n=266) supporting a favorable safety profile, as a late-breaking abstract ANA 2025: Presented data demonstrating long-term neurological benefit; the abstract was selected for oral and poster presentation and designated an “Abstract of Distinction” Journal of Hepatology / AASLD 2025: Reported statistically significant improvement in copper balance, with sustained improvement in daily copper balance driven by increased fecal copper excretion EL-PFDD: Attended externally led patient-focused drug development (“EL-PFDD”) meeting with the FDA on January 29, 2026. During the meeting, patients and caregivers described the burden of Wilson disease, shared their experience with the currently available treatments, and highlighted the urgent need for additional treatment options Upcoming 2026 presentations: Abstracts accepted for presentation at EASL 2026 and the American Academy of Neurology (“AAN”) 2026 Annual Meeting, including: Tiomolybdate choline stabilizes liver disease and improves neurological symptoms as well as quality of life in treatment-experienced Wilson disease patients (EASL 2026 oral presentation) Greater clinical benefit with tiomolybdate choline versus standard-of-care in neurologic Wilson disease patients in the Phase 3 FoCus Trial (AAN 2026 late-breaking oral and poster presentation) MNPR-101 Radiopharmaceutical Programs MNPR-101-Zr (zirconium-89), MNPR-101-Lu (lutetium-177), and MNPR-101-Ac (actinium-225) target the urokinase plasminogen activator receptor (“uPAR”), which is expressed in multiple aggressive cancers, including triple-negative breast, colorectal, and pancreatic cancers. MNPR-101 platform update: Ongoing Phase 1 clinical activity in Australia for MNPR-101-Zr and MNPR-101-Lu Investigational new drug ("IND") clearance received for MNPR-101-Lu to initiate a Phase 1 clinical trial in the US FDA-authorized physician-sponsored Expanded Access Program at Excel Diagnostics and Nuclear Oncology Center (“EDNOC”) in Houston, Texas Preclinical development of MNPR-101-Ac Financings In 2025, Monopar strengthened its balance sheet through the following financing activities: Completed an underwritten public offering generating approximately $91.9 million, after a concurrent repurchase of common stock but before offering expenses Results for the Fourth Quarter and Year Ended December 31, 2025, Compared to the Fourth Quarter and Year Ended December 31, 2024 Cash and Net Loss Cash, cash equivalents and short-term investments as of December 31, 2025, were $140.4 million. Monopar expects its current funds to support operations through at least December 31, 2027, including: (1) regulatory and potential commercial activities for ALXN1840; (2) continued development of MNPR-101 programs; and (3) internal research and development. Net loss for the fourth quarter of 2025 was $5.2 million, or $0.61 per share, compared to $10.9 million, or $2.23 per share, for the fourth quarter of 2024. Net loss for the year ended December 31, 2025, was $13.7 million, or $1.85 per share, compared to $15.6 million, or $4.11 per share, for the year ended December 31, 2024. Research and Development (“R&D”) Expenses R&D expenses for the fourth quarter of 2025 were $3.9 million compared to $9.9 million for the fourth quarter of 2024. The decrease was primarily due to the absence of one-time expenses incurred in connection with the in-licensing of ALXN1840 in 2024, partially offset by higher R&D personnel expenses (driven by increased headcount and compensation), increased clinical material and manufacturing costs for the ALXN1840 program, and higher other R&D expenses. R&D expenses for the year ended December 31, 2025, were $9.9 million compared to $13.0 million for the year ended December 31, 2024. The decrease was primarily due to the absence of one-time expenses incurred in connection with the in-licensing of ALXN1840 in 2024, as well as lower radiopharmaceutical clinical trial costs reflecting a shift in focus following the in-licensing, partially offset by higher R&D personnel expenses (driven by increased headcount and compensation), increased clinical material and manufacturing costs for the ALXN1840 program, and higher other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the fourth quarter of 2025 were $2.2 million compared to $1.2 million for the fourth quarter of 2024. The increase was primarily due to higher Board of Directors (the “Board”) and G&A personnel expenses (including stock-based compensation and bonuses), higher patent legal fees, and other increases in G&A expenses. G&A expenses for the year ended December 31, 2025, were $6.8 million compared to $3.2 million for the year ended December 31, 2024. The increase was primarily due to higher Board and G&A personnel expenses (including stock-based compensation and bonuses), higher patent legal fees, and other increases in G&A expenses. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac for the treatment of advanced cancers. For more information, including links to SEC filings containing detailed financial information, please visit: Annual Reports :: Monopar Therapeutics Inc. (MNPR). Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning: that Monopar is making continued progress toward a planned New Drug Application ("NDA") submission for ALXN1840 in Wilson disease; that Monopar is preparing for the potential launch of ALXN1840; that Monopar plans to submit an NDA for ALXN1840 to the FDA in mid-2026; and that Monopar expects its current funds to support operations through at least December 31, 2027. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840, including the submission of the NDA to the FDA, and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Ill., Nov. 13, 2025 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical‐stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, today announced third quarter 2025 financial results and recent developments. Recent Developments ALXN1840 for Wilson Disease On September 14-15, 2025, the Company presented new data on the long-term neurological efficacy and safety of ALXN1840 (tiomolybdate choline) at the 150th American Neurological Association (ANA) Annual Meeting. Matthew Lorincz, M.D., Ph.D., Professor of Neurology and Co-Director of the Wilson Disease Center of Excellence at the University of Michigan delivered the poster and oral presentations. The new findings presented at ANA highlight the long-term neurological benefit of ALXN1840, and follow the European Association for the Study of the Liver (EASL) International Liver Congress presentation in May on the long-term hepatic and systemic safety and efficacy data. Together, these findings underscore the potential of ALXN1840 to favorably impact both neurological and hepatic manifestations of Wilson disease. On November 9, 2025, the Company presented new data and analyses from the Phase 2 ALXN1840-WD-204 copper balance study at the American Association for the Study of Liver Diseases (AASLD) – The Liver Meeting® 2025. In an oral presentation titled “Rapidly Improved Cu Balance in Wilson Disease Patients on Tiomolybdate Choline,” Professor Aftab Ala, MBBS, M.D., FRCP, Ph.D., Professor of Hepatology and Consultant Hepatologist at the Institute of Liver Studies at King’s College Hospital in London, shared results showing that treatment with ALXN1840 led to a rapid and sustained improvement in daily copper balance in patients with Wilson disease, primarily through increased fecal copper excretion. Monopar is preparing to submit a New Drug Application (“NDA”) to the FDA in early 2026. MNPR‐101 for Radiopharmaceutical Use On September 26, 2025, Monopar received FDA clearance on its IND application for MNPR-101-Lu, which covers the protocol titled “Phase 1, Open-Label, Multicenter, Dosimetry and Dose-Escalation Trial to Characterize the Safety, Tolerability, and Anti-Tumor Activity of Fractionated MNPR-101-Lu Dosing in the Treatment of uPAR-Expressing Advanced or Metastatic Solid Tumors.” This IND incorporates the Company’s proprietary linker technology, which has been designed to enhance the stability and biodistribution of its therapeutic radiopharmaceuticals. Recent Financing Capital Raise and Share Repurchase On September 23, 2025, the Company priced an underwritten public offering (the “Offering”) consisting of (i) 1,034,433 shares of its common stock and (ii) pre-funded warrants to purchase 960,542 shares of common stock, pursuant to an underwriting agreement (the “Underwriting Agreement”) with Morgan Stanley & Co. LLC, Leerink Partners LLC, and Barclays Capital Inc. (the “Underwriters”). The public offering price was $67.67 per share and $67.669 per pre-funded warrant, which represents the per share offering price less a $0.001 per share exercise price. The aggregate net proceeds from the Offering were approximately $126.9 million, after deducting underwriting discounts and commissions but before offering expenses and the Share Repurchase (as defined below). On September 24, 2025, the Company entered into a share purchase agreement (the “Share Purchase Agreement”) with Tactic Pharma LLC (“Tactic Pharma”), an existing significant stockholder that held approximately 13.4% of the Company’s common stock prior to the Offering and Share Repurchase. Pursuant to the Share Purchase Agreement, the Company used $35 million of the Offering proceeds to repurchase 550,229 shares of its common stock from Tactic Pharma at a purchase price of $63.6098 per share, which equals the public offering price per share less underwriting discounts and commissions (the “Share Repurchase”). After giving effect to the Share Repurchase, the Company's net proceeds from the Offering were approximately $91.9 million, before estimated offering expenses. Financial Results for the Third Quarter Ended September 30, 2025, Compared to the Third Quarter Ended September 30, 2024 Cash and Net Loss Cash, cash equivalents and investments as of September 30, 2025, were $143.7 million. Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2027, in order to: (1) assemble a regulatory package and file an NDA for the ALXN1840 investigational drug candidate for Wilson disease; (2) continue to conduct and conclude our first-in-human imaging and dosimetry clinical trial with MNPR-101-Zr, continue to conduct our first-in-human therapeutic clinical trial of MNPR-101-Lu, and advance our preclinical MNPR-101-Ac program into the clinic; and (3) invest in internal R&D projects to expand our radiopharmaceutical pipeline. Net loss for the third quarter of 2025 was $3.4 million or $0.48 per share compared to net loss of $1.3 million or $0.37 per share for the third quarter of 2024. Research and Development (“R&D”) Expenses R&D expenses for the third quarter of 2025 were $2,589,749, compared to $984,278 for the third quarter of 2024. This represents an increase of $1,605,471 attributed to (1) a $937,582 increase in manufacturing activities related to ALXN1840, (2) a $617,667 increase in R&D personnel expenses including stock-based compensation and (3) a net increase of $50,223 in other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the third quarter of 2025 were $1,503,326, compared to $590,624 for the third quarter of 2024. This represents an increase of $912,702 primarily attributed to (1) a $369,959 increase in Board compensation resulting from the grant of stock options in March 2025 (no stock options were granted to the Board in 2024), (2) a $287,749 increase in G&A personnel expenses including stock-based compensation, and (3) a net increase of $254,993 in other G&A expenses. Interest Income Interest income for the third quarter of 2025 increased by $556,129 compared to the same period in 2024. The increase is attributed to interest earned on U.S. Treasury securities and higher bank balances in 2025, as a result of the approximately $91.9 million raised in the Offering after giving effect to the Share Repurchase, deducting underwriting discounts and commissions but before offering expenses. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/quarterly-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning: that together, these findings underscore the potential of ALXN1840 to favorably impact both neurological and hepatic manifestations of Wilson disease; that Monopar is preparing to submit a New Drug Application (“NDA”) to the FDA in early 2026; that the MNPR-101-Lu IND incorporates the Company’s proprietary linker technology, which has been designed to enhance the stability and biodistribution of its therapeutic radiopharmaceuticals; and that Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2027. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840 and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Ill., Aug. 12, 2025 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical‐stage biopharmaceutical company focused on developing innovative treatments for patients with unmet medical needs, today announced second quarter 2025 financial results and recent developments. Recent Developments ALXN1840 for Wilson Disease On June 6, 2025, Alexion Pharmaceuticals officially transferred sponsorship of the investigational new drug (“IND”) application for ALXN1840 to Monopar. The U.S. Food and Drug Administration (“FDA”) acknowledged this change on July 29, 2025, confirming that the transfer was effective as of June 6, 2025. Monopar is now fully responsible for the program, including its commercial advancement and compliance with all applicable federal regulations. Monopar is preparing to submit a New Drug Application (“NDA”) to the FDA in early 2026. MNPR‐101 for Radiopharmaceutical Use The Company’s MNPR-101-Zr Phase 1 (imaging and dosimetry) and MNPR-101-Lu (therapeutic) Phase 1a clinical trials in advanced cancers are active and enrolling in Australia, and the Company’s Expanded Access Program (also referred to as compassionate use) for MNPR-101-Zr and MNPR-101-Lu is active and enrolling in the U. S. Monopar continues its preclinical work with MNPR-101-Ac (therapeutic) with plans to enter the clinic in the future. Financial Results for the Second Quarter Ended June 30, 2025, Compared to the Second Quarter Ended June 30, 2024 Cash and Net Loss Cash, cash equivalents and investments as of June 30, 2025, were $53.3 million. Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026, in order to: (1) assemble a regulatory package and file an NDA for ALXN1840; (2) continue to conduct and conclude its first-in-human imaging and dosimetry clinical trial with MNPR-101-Zr; (3) continue to conduct its first-in-human therapeutic clinical trial of MNPR-101-Lu; (4) advance its preclinical MNPR-101-Ac program into the clinic; and (5) invest in internal research and development projects to expand its radiopharmaceutical and rare disease pipeline. Net loss for the second quarter of 2025 was $2.5 million or $0.35 per share compared to net loss of $1.7 million or $0.49 per share for the second quarter of 2024. Research and Development (“R&D”) Expenses R&D expenses for the second quarter of 2025 were $1,730,000, compared to $1,130,978 for the second quarter of 2024. This represents an increase of $599,023 attributed to (1) a $636,300 increase in R&D personnel expenses including stock-based compensation, partially offset by (2) a net decrease of $37,277 in other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the second quarter of 2025 were $1,504,295, compared to $657,806 for the second quarter of 2024. This represents an increase of $846,489 primarily attributed to (1) a $370,103 increase in Board compensation resulting from the grant of stock options in March 2025 (no stock options were granted to the Board in 2024), (2) a $255,650 increase in G&A personnel expenses including stock-based compensation, (3) a $114,322 increase in legal fees, (4) a $63,200 increase in state franchise taxes, (5) a $41,416 increase in insurance expenses and (6) a net increase of $1,798 in other G&A expenses. Interest Income Interest income for the three months ended June 30, 2025, increased by $707,294 compared to the same period in 2024. The increase is attributed to interest earned on U.S. Treasury securities and higher bank balances in 2025, resulting from over $55 million of funds raised in the fourth quarter of 2024. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/quarterly-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning: that Monopar is responsible for advancing the program commercially; that Monopar is preparing to submit an NDA to the FDA in early 2026; that Monopar continues its preclinical work with MNPR-101-Ac with the plan to enter the clinic in the future; and that Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840 and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Illinois, May 13, 2025 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical‐stage biopharmaceutical company focused on developing innovative treatments for patients with unmet medical needs, today announced first quarter 2025 financial results and recent developments. Recent Developments ALXN1840 for Wilson Disease On May 7, 2025, Monopar presented long-term efficacy and safety data for ALXN1840 (tiomolybdate choline) at the European Association for the Study of the Liver (“EASL”) International Liver Congress 2025, a leading global conference in liver disease. The data support ALXN1840 as a potential treatment for Wilson disease, a rare genetic disorder that causes toxic copper buildup in organs like the liver and brain. Pooled results from three clinical trials (n=255) showed sustained clinical benefits over a median treatment duration of 2.63 years. Safety data, which included an additional Phase 2 study (n=266), confirmed a favorable safety profile with fewer than 5% of patients experiencing a drug-related serious adverse event (“SAE”) and no renal or urinary system SAEs. Sustained neurological improvement as assessed by the physician as well as the patient using the Unified Wilson Disease Rating Scale (“UWDRS”) was observed, as was sustained increased copper mobilization. Patients reported greater convenience and effectiveness when treated with ALXN1840 compared to standard of care, and improvement in the New Wilson Index (a prognostic indicator of the status of the liver) was also observed. The Company is preparing to submit a New Drug Application (“NDA”) to the U.S. Food and Drug Administration (“FDA”) in early 2026. MNPR‐101 for Radiopharmaceutical Use The Company’s MNPR-101-Zr Phase 1 (imaging and dosimetry) and MNPR-101-Lu (therapeutic) Phase 1a clinical trials in advanced cancers are active and enrolling in Australia. Monopar continues its preclinical work with MNPR-101-Ac (therapeutic) with plans to enter the clinic in the future. Financial Results for the First Quarter Ended March 31, 2025, Compared to the First Quarter Ended March 31, 2024 Cash and Net Loss Cash, cash equivalents and investments as of March 31, 2025, were $54.6 million. Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026, in order to: (1) assemble a regulatory package and file an NDA for ALXN1840; (2) continue to conduct and conclude its first-in-human imaging and dosimetry clinical trial with MNPR-101-Zr; (3) continue to conduct its first-in-human therapeutic clinical trial of MNPR-101-Lu; (4) advance its preclinical MNPR-101-Ac program into the clinic; and (5) invest in internal research and development projects to expand its radiopharmaceutical and rare disease pipeline. Net loss for the first quarter of 2025 was $2.6 million or $0.38 per share compared to net loss of $1.6 million or $0.51 per share for the first quarter of 2024. Research and Development (“R&D”) Expenses R&D expenses for the first quarter of 2025 were $1,643,000, compared to $966,000 for the first quarter of 2024. This represents an increase of $677,000 attributed to (1) a $611,000 increase in R&D personnel expenses including stock-based compensation and (2) a $69,000 increase in clinical trial site activity related to MNPR-101 for radiopharmaceutical use, partially offset by (3) a net decrease of $3,000 in other R&D expenses. General and Administrative (“G&A”) Expenses G&A expenses for the first quarter of 2025 were $1,578,000, compared to $757,000 for the first quarter of 2024. This represents an increase of $821,000 primarily attributed to (1) a $416,000 increase in Board compensation resulting from the grant of stock options during the quarter ended March 31, 2025 (no stock options were granted during the quarter ended March 31, 2024), (2) a $291,000 increase in G&A personnel expenses including stock-based compensation, (3) a $73,000 increase in legal fees and (4) a $41,000 increase in insurance expenses. Interest Income Interest income for the first quarter of 2025 increased by $515,000, compared to the first quarter of 2024. The increase is attributed to interest earned on U.S. Treasury securities and higher bank balances in 2025, resulting from over $55 million of funds raised in the fourth quarter of 2024. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/quarterly-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include statements concerning: that Monopar’s data support ALXN1840 as a potential treatment for Wilson disease; that Monopar is preparing to submit an NDA to the FDA in early 2026; that Monopar continues its preclinical work with MNPR-101-Ac with the plan to enter the clinic in the future; and that Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840 and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics

WILMETTE, Ill., March 31, 2025 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (Nasdaq: MNPR), a clinical-stage biopharmaceutical company focused on developing innovative treatments for patients with unmet medical needs, today announced fourth quarter and full-year 2024 financial results and summarized recent developments. “2024 was a productive year for Monopar, with the in-licensing of ALXN1840, the initiation of two first-in-human radiopharma Phase 1 clinical trials, and the strengthening of our balance sheet with net proceeds of over $55 million from financings,” said Chandler Robinson, MD, Chief Executive Officer of Monopar. “We are especially grateful to the Wilson disease patients. Their testimonies and support are what provided the opportunity for Monopar to progress ALXN1840 toward an NDA filing.” Recent Program Developments ALXN1840 – Plan to Submit NDA with FDA for Wilson Disease in Early 2026 Wilson disease is a rare and progressive genetic condition in which the body’s pathway for removing excess copper is compromised, leading to damage from toxic copper build-up in tissues and organs such as the liver and brain. ALXN1840 is a potent binder and mobilizer of copper, as demonstrated in a Phase 3 clinical trial that met its primary endpoint. In October 2024, Monopar announced the execution of a worldwide exclusive license to ALXN1840 with Alexion, AstraZeneca Rare Disease (“AZ”). As part of this transaction, AZ received a total cash payment of $4.0 million, was issued 9.9% ownership of Monopar’s outstanding common stock, and is entitled to receive regulatory approval and sales milestones along with a tiered royalty based on net sales. MNPR-101 – Currently Enrolling Phase 1 Imaging and Therapeutic Oncology Trials Imaging agent MNPR-101-Zr (MNPR-101 conjugated to zirconium-89) and therapeutic agent MNPR-101-Lu (MNPR-101 conjugated to lutetium-177) target the urokinase plasminogen activator receptor (“uPAR”), which is expressed in numerous aggressive cancers such as triple-negative breast, colorectal, and pancreatic cancers. Initiated Phase 1a clinical trial for novel therapeutic radiopharmaceutical MNPR-101-Lu in patients with advanced cancers Dosed first patient with MNPR-101-Lu in December 2024 Presented encouraging human clinical imaging and dosimetry data of MNPR-101-Zr at the European Association of Nuclear Medicine (“EANM”) 2024 Annual Congress uPAR expression, as detected by MNPR-101-Zr, has been seen to date in breast, colorectal, pancreatic, adrenocortical carcinoma, and ovarian cancer patients Filed a patent application covering new therapeutic radiopharmaceuticals based on a novel family of linkers used to connect radioisotopes with targeting agents, including Monopar’s uPAR targeting antibody MNPR-101 Recent Financings In Q4 2024, we raised net proceeds of over $55 million from the following financings: On October 30, 2024, pursuant to a placement agent agreement with Rodman & Renshaw LLC, we sold 1,181,540 shares of our common stock at $16.25 in a public offering, yielding net proceeds of approximately $17.8 million. On December 23, 2024, pursuant to an underwriting agreement with Piper Sandler & Co., we sold 798,655 shares of our common stock at $23.79 per share in a public offering. Concurrently with the public offering, we completed a private placement of 882,761 pre-funded warrants to purchase shares of common stock to an institutional investor at a purchase price of $23.789 per pre-funded warrant. The net proceeds of the December 23, 2024, public offering and private placement were approximately $37.4 million. Results for the Fourth Quarter and Year Ended December 31, 2024, Compared to the Fourth Quarter and Year Ended December 31, 2023 Cash and Net Loss Cash, cash equivalents and short-term investments as of December 31, 2024, were $60.2 million. Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026, in order to: (1) assemble a regulatory package and file an NDA for ALXN1840; (2) continue to conduct and conclude its first-in-human imaging and dosimetry clinical trial with MNPR-101-Zr; (3) continue to conduct its first-in-human therapeutic clinical trial of MNPR-101-Lu; (4) advance its preclinical MNPR-101-Ac program into the clinic; and (5) invest in internal research and development projects to expand its radiopharma and rare disease pipeline. Net loss for the fourth quarter of 2024 was $10.9 million or $2.23 per share compared to $1.8 million or $0.60 per share for the fourth quarter of 2023. Net loss for the year ended December 31, 2024, was $15.6 million or $4.11 per share compared to $8.4 million or $3.04 per share for the year ended December 31, 2023. Research and Development (“R&D”) Expenses R&D expenses for the fourth quarter of 2024 were $9.9 million compared to $1.0 million for the fourth quarter of 2023. This increase of $8.9 million was primarily due to: (1) an increase of $8.6 million related to the in-licensing of ALXN1840 and (2) an increase of $0.4 million in R&D salaries, partially offset by a net decrease of $0.1 million in other R&D expenses. R&D expenses for the year ended December 31, 2024, were $13.0 million compared to $5.6 million for the year ended December 31, 2023. This increase of $7.4 million was primarily due to: (1) an increase of $8.6 million related to the in-licensing of ALXN1840; (2) an increase of $0.3 million in R&D personnel expenses; and (3) a net increase of $0.1 million in other R&D expenses, partially offset by a decrease of $1.6 million in trial closure related expenses. General and Administrative (“G&A”) Expenses G&A expenses for the fourth quarter of 2024 were $1.2 million, compared to $0.9 million for the fourth quarter of 2023. This increase of $0.3 million was primarily due to: (1) an increase of $0.1 million in G&A personnel salaries; (2) an increase of $0.1 million in G&A consulting fees; and (3) an increase of $0.1 million in Delaware franchise taxes. G&A expenses for the year ended December 31, 2024, were $3.2 million, compared to $3.2 million for the year ended December 31, 2023. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biotechnology company with late-stage ALXN1840 for Wilson disease, and radiopharma programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac225 for the treatment of advanced cancers. For more information, and links to SEC filings that contain detailed financial information, visit: https://ir.monopartx.com/annual-reports. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Examples of these forward-looking statements include: that Monopar plans to submit an NDA for Wilson disease in early 2026; and that Monopar expects that its current funds will be sufficient to continue operations at least through December 31, 2026. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory discussions that Monopar intends to initiate related to ALXN1840 and the outcome thereof; that radiation dosimetry analytics in the future may not be consistent with the estimated data generated thus far; that Monopar may not find enough patients to successfully enroll its MNPR-101-Lu therapeutic study; that the Phase 1 imaging and dosimetry clinical trial in advanced cancer patients with MNPR-101-Zr may not yield consistently satisfactory results; that future preclinical, including MNPR-101-Ac, or clinical data may not be as promising as the data to date; that MNPR-101-Zr and/or MNPR-101-Lu may cause unexpected serious adverse effects or fail to be effective against the cancer tumors in humans; that the trials could result in a clinical hold should there be a serious adverse event; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc. Investor Relations Quan Vu Chief Financial Officer [email protected] Follow Monopar on social media for updates: X: @MonoparTx LinkedIn: Monopar Therapeutics