DiaMedica Therapeutics Reports Full Year 2025 Financial Results and Provides Business Highlights

• Received Regulatory Approval from Health Canada Supporting Initiation of Phase 2 DM199 Study in Early-onset Preeclampsia.
• DM199 Preeclampsia Phase 2 Investigator-Sponsored Trial (IST) Part 1a Expansion Cohort Enrolling, Completion Expected in 1H 2026.
• ReMEDy2 Phase 2/3 AIS Trial of DM199 Approaching 70% of Required Interim Enrollment; Interim Analysis planned 2H 2026.
• $60 million in Cash, Cash Equivalents and Investments, Anticipated Runway through 2H 2027.
• Conference Call and Webcast on March 31 at 8:00 AM ET / 7:00 AM CT.

DiaMedica Therapeutics Inc. (NASDAQ:DMAC), a clinical-stage biopharmaceutical company focused on developing novel treatments for preeclampsia (PE), fetal growth restriction (FGR), and acute ischemic stroke (AIS), today provided a business update and reported financial results for the year ended December 31, 2025. Management will host a conference call on Tuesday, March 31, 2026, at 8:00 AM Eastern Time / 7:00 AM Central Time to provide a business update and discuss full-year 2025 financial results.

"We continue to make meaningful progress across our clinical programs, highlighted by further advancement of the DM199 preeclampsia (PE) program. In the IST, enrollment continues in the expansion cohort for Part 1a, and we anticipate initiating Parts 2 and 3, which will evaluate participants with early-onset preeclampsia and fetal growth restriction. We are also preparing to initiate a DiaMedica-sponsored Phase 2 study in early-onset preeclampsia later this year. There remains a critical need for differentiated, well-tolerated therapies that can deliver clinically meaningful benefits, prolong pregnancy, and improve outcomes for both the mother and baby," said Rick Pauls, President and Chief Executive Officer of DiaMedica Therapeutics. "We are encouraged by the momentum in our ReMEDy2 acute ischemic stroke trial, which is approaching 70% of the required enrollment for the planned interim analysis, and we remain on track to complete the interim analysis in the second half of 2026. This, combined with a strong cash position expected to fund operations through the second half of 2027, supports our continued focus on advancing DM199 through key clinical and regulatory milestones in 2026."

Recent Corporate Highlights

Preeclampsia Phase 2 IST Clinical Development:

• Part 1a (PE, planned delivery within 72 hours): Enrollment is ongoing, with completion anticipated in the first half of 2026, with an updated Part 1a dataset available later in 2026.
• Part 1b (PE, planned delivery within 72 hours) and Part 2 (early onset PE with expectant management): Based on clinical learnings from Part 1a, protocol amendments for Parts 1b and 2 are being finalized to refine the treatment regimen, with initiation expected following completion of the ongoing Part 1a expansion cohort.
• Part 3 (fetal growth restriction): The first patient with early-onset fetal growth restriction, who is not diagnosed with preeclampsia, is expected to be dosed in Q2 2026.

Early-Onset Preeclampsia Phase 2 DiaMedica Sponsored Trial:

• Open-label, dose-range finding, Phase 2 study of DM199 in participants with early onset preeclampsia to be conducted in North America (United States & Canada) and the United Kingdom (UK) to evaluate safety, early signals of efficacy and selection of an optimal dose regimen.
• DiaMedica received a "No Objection Letter" (NOL) from Health Canada enabling the initiation of this trial in Canada.
• DiaMedica plans to discuss alternate species with the FDA and hopes to have an update on an agreement with the FDA next quarter, and will conduct this Phase 2 study while working on an alternate species with the FDA.
• Clinical trial application to expand this Phase 2 trial to include sites in the United Kingdom (U.K.) filing planned for the second quarter of 2026.

Acute Ischemic Stroke ReMEDy2 Phase 2/3 Clinical Developments:

• Enrollment in DiaMedica's Phase 2/3 ReMEDy2 (NCT065216) trial is approaching 70% of the required enrollment for the interim analysis.
• DiaMedica reaffirms guidance for completion of the interim analysis in the second half of 2026.

Financial Results Highlights for the Year Ended December 31, 2025

• Cash Position and Runway – Cash and short-term investments were $59.9 million as of December 31, 2025, compared to $44.1 million as of December 31, 2024. The increase in cash and short-term investments is due to net proceeds received from the sale of common shares in the Company's July 2025 private placement and under its at-the-market offering program. Based on its current plans, the Company anticipates its current cash and short-term investments will be sufficient to fund its planned clinical studies and support corporate operations through the second half of 2027.
• Cash Flows – Net cash used in operating activities for the year ended December 31, 2025, was $29.1 million compared to $22.1 million for the year ended December 31, 2024. The increase in cash used in operating activities resulted primarily from increased net loss, partially offset by changes in operating assets and liabilities during the current period.
• Research and Development (R&D) – R&D expenses were $24.6 million for the year ended December 31, 2025, compared to $19.1 million for the year ended December 31, 2024. The increase is due primarily to cost increases driven by the continuation of the Company's ReMEDy2 clinical trial, including its global expansion, the expansion of the clinical team in the prior and current year periods, including increased non-cash share-based compensation costs. These increases were partially offset by cost reductions related to manufacturing process development work performed and completed in the prior year period. DiaMedica expects its R&D expenses to increase moderately in future periods relative to recent periods, as the Company continues its clinical development program in PE and the ReMEDy2 trial continues to enroll, including its global expansion.
• General and Administrative (G&A) – G&A expenses were $9.8 million for the year ended December 31, 2025, up from $7.6 million for the year ended December 31, 2024. The increase was due to a series of factors, including increased non-cash share-based compensation expense, increased personnel costs, increased investor relations expenses and increased patent prosecution costs. DiaMedica expects G&A expenses to remain steady or increase slightly in future periods relative to recent periods.

Conference Call and Webcast Information

DiaMedica Management will host a conference call and webcast to discuss its business update and full year 2025 financial results on Tuesday, March 31, 2026, at 8:00 AM Eastern Time / 7:00 AM Central Time:

Interested parties may access the conference call by dialing in or listening to the simultaneous webcast. Listeners should log on to the website or dial in 15 minutes prior to the call. The webcast will remain available for play back on the Company's website, under investor relations - events and presentations, following the earnings call and for 12 months thereafter. A telephonic replay of the conference call will be available until April 7, 2026, by dialing (800) 770-2030 (US Toll Free) and entering the replay passcode: 4545194#.

About DiaMedica Therapeutics Inc.

DiaMedica Therapeutics Inc. is a clinical-stage biopharmaceutical company committed to improving the lives of people suffering from serious ischemic diseases with a focus on preeclampsia, fetal growth restriction and acute ischemic stroke. DiaMedica's lead candidate, DM199, is the first pharmaceutically active recombinant (synthetic) form of the KLK1 protein, an established therapeutic modality in Asia for the treatment of acute ischemic stroke, preeclampsia, and other vascular diseases. For more information, visit the Company's website at www.diamedica.com.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995 and forward-looking information that are based on the beliefs of management and reflect management's current expectations. When used in this press release, the words "anticipates," "believes," "continue," "could," "estimates," "expects," "intends," "may," "plans," "potential," "should," or "will," the negative of these words or such variations thereon or comparable terminology and the use of future dates are intended to identify forward-looking statements and information. Forward-looking statements and information in this press release include statements regarding the Company's expectations regarding the timing, nature and requirements for regulatory applications and approvals, including its application for an IND for the study of DM199 as a treatment for preeclampsia and fetal growth restriction and its conducting a Phase 2 trial in these indications; ReMEDy2 trial enrollment and timing of interim analysis; anticipated clinical benefits and success of DM199 for the treatment of preeclampsia, fetal growth restriction and acute ischemic stroke; future R&D and G&A expenses and the Company's projected cash runway. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Applicable risks and uncertainties include, among others, risks and uncertainties relating to the timing and outcomes of non-clinical studies; risks and uncertainties relating to the timing of studies and trials; risks and uncertainties relating to the clinical expansion into preeclampsia and associated trials; the risk that existing preclinical and clinical data may not be predictive of the results of ongoing or later clinical trials; DiaMedica's plans to develop, obtain regulatory approval for and commercialize its DM199 product candidate for the treatment of preeclampsia, fetal growth restriction, and acute ischemic stroke and its expectations regarding the benefits of DM199; DiaMedica's ability to conduct successful clinical testing of DM199 and within its anticipated parameters, site activations, enrollment numbers, costs and timeframes; the perceived benefits of DM199 over existing treatment options; the potential direct or indirect impact of hospital and medical facility staffing shortages, increased tariffs and worldwide global supply chain shortages on DiaMedica's business and clinical trials, including its ability to meet its site activation and enrollment goals; DiaMedica's reliance on collaboration with third parties to conduct clinical trials; DiaMedica's ability to continue to obtain funding for its operations, including funding necessary to complete current and planned clinical trials and obtain regulatory approvals for DM199 for preeclampsia, fetal growth restriction, and acute ischemic stroke; and the risks identified under the heading "Risk Factors" in DiaMedica's annual report on Form 10-K for the fiscal year ended December 31, 2024 filed with the U.S. Securities and Exchange Commission (SEC) and subsequent SEC reports. The forward-looking information contained in this press release represents the expectations of DiaMedica as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward-looking information and should not rely upon this information as of any other date. While DiaMedica may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

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Scott Kellen

Chief Financial Officer

Phone: (763) 496-5118

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For Investor Inquiries:

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LifeSci Communications

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