– Partnership will introduce NeuroSigma’s second-generation Monarch eTNS^® System to Firefly’s nationwide network of Evoke™ clinicians –

– Collaboration brings together an FDA-cleared pediatric ADHD treatment and Firefly’s objective brain-function assessment platform and AI-driven ADHD biomarker research –

– Monarch offers an at-home, non-medication treatment option for eligible children ages 7 through 12 ––

KENMORE, N.Y. and LOS ANGELES, Sept. 25, 2026 (GLOBE NEWSWIRE) -- Firefly Neuroscience, Inc. ("Firefly") (NASDAQ:AIFF), an artificial intelligence ("AI") company advancing precision neuroscience, and NeuroSigma, Inc. ("NeuroSigma"), a bioelectronic medical device company, today announced a strategic partnership to expand clinician awareness of and access to NeuroSigma’s Monarch eTNS^® System through Firefly’s growing nationwide network of Evoke™ clinician customers.

The Monarch eTNS^® System is the first non-drug treatment for pediatric attention-deficit/hyperactivity disorder ("ADHD") cleared by the U.S. Food and Drug Administration ("FDA"). Under the partnership, Firefly will introduce the Monarch device to psychiatry, neurology and behavioral health practices that use its FDA 510(k)-cleared, AI-powered Evoke™ EEG/ERP platform.

The collaboration brings together complementary technologies designed to address two significant needs in pediatric ADHD care: access to objective information about brain function and availability of a non-medication treatment option for eligible patients.

According to a 2024 study published in the Journal of Clinical Child & Adolescent Psychology, approximately one in nine U.S. children has received an ADHD diagnosis, representing an estimated 7.1 million children. And among the approximately 6.5 million children with current ADHD, nearly one-third received no ADHD-specific treatment.¹ At the same time, many families are seeking alternatives to stimulant medication for their children.²^, ³

"This partnership represents an important step toward a more objective and personalized approach to pediatric ADHD care," said Greg Lipschitz, Chief Executive Officer of Firefly. "Clinicians need better tools to understand how an individual patient’s brain is functioning, more treatment options from which to choose and objective ways to evaluate changes over time. By introducing NeuroSigma’s FDA-cleared, non-drug therapy to our Evoke clinician network, we are connecting measurement-driven practices with an important treatment option for eligible children and their families."

Firefly’s Evoke™ platform combines quantitative electroencephalography ("qEEG") and event-related potential ("ERP") testing with AI-powered analytics. Drawing upon Firefly’s proprietary database of more than 200,000 EEG/ERP brain scans, Evoke™ provides clinicians with objective information about individual brain function, including in patients whose symptoms may overlap across multiple conditions, and enables clinicians to track changes over time.

In March 2026, Firefly announced the discovery of EEG/ERP biomarkers, identified using data collected through Evoke™, that may help differentiate among the three ADHD presentations: predominantly inattentive, predominantly hyperactive-impulsive and combined. Subject to further research and validation, Firefly believes these findings could ultimately help clinicians better match patients with appropriate treatment approaches and objectively monitor their response to intervention.

The prescription-only Monarch eTNS^® System is a palm-sized device that delivers mild external trigeminal nerve stimulation (eTNS) through a small adhesive patch placed on a child’s forehead while the child sleeps. It is FDA-cleared as a monotherapy for children ages 7 through 12 with ADHD who are not currently taking prescription ADHD medication.

NeuroSigma commenced U.S. sales of its second-generation Monarch device in July 2026, following the development of a waitlist comprising more than 1,500 patients, caregivers and healthcare providers. In September, the company expanded payment options for families, including third-party installment plans.

"For too long, we have relied on symptom checklists and traditional evaluations alone to understand a child's brain," said Lauren Hernandez, M.D., a board-certified pediatrician with advanced certification in genomic medicine, and Chief Medical Officer of the pediatric program for NuWell Medicine. "Advanced qEEG technology, such as Evoke™, allows us to see how a child's brain is actually functioning in real time, giving us a deeper understanding of attention, learning, emotional regulation, and overall neurological health. This technology helps identify the unique patterns behind challenges often labeled as ADHD, while also revealing when symptoms may be driven by anxiety, sensory processing differences, autonomic nervous system dysregulation, or other underlying factors. By understanding how the brain, gut, and autonomic nervous system work together, we can create more personalized and effective roadmaps that support resilience, health, and lifelong success. Evoke™ provides valuable insights that can help validate the need for medication when appropriate, while also helping families avoid unnecessary treatment when the root cause lies elsewhere. We are also excited about emerging tools, such as the Monarch eTNS^®System, which offer new opportunities to support children with ADHD and autism. For the first time, we have objective tools to measure progress and improvement over time, aligning perfectly with the Reformative Medicine approach of identifying what’s off balance, optimizing function, and restoring balance across the body's interconnected systems."

Under the agreement, Firefly will introduce the Monarch eTNS^® System to its Evoke™ clinician customers and support clinician education regarding the therapy. NeuroSigma will provide clinical training, prescribing support and product fulfillment through its specialty pharmacy partner.

"Firefly has built a network of clinicians who are already embracing a more objective, measurement-driven approach to brain health," said Colin Kealey, M.D., President and Chief Executive Officer of NeuroSigma. "These clinics are well positioned to evaluate innovative treatment options for children and families seeking an alternative to medication. With our second-generation Monarch device now shipping and expanded payment options available, this partnership gives us an efficient pathway to educate more clinicians and broaden access to the first FDA-cleared, non-drug treatment for pediatric ADHD."

Sources

¹ Danielson ML, Claussen AH, Bitsko RH, Katz SM, Newsome K, Blumberg SJ, Kogan MD, Ghandour R. ADHD Prevalence Among U.S. Children and Adolescents in 2022: Diagnosis, Severity, Co-Occurring Disorders, and Treatment. J Clin Child Adolesc Psychol. 2024 May-Jun;53(3):343-360. doi: 10.1080/15374416.2024.2335625. Epub 2024 May 22. PMID: 38778436; PMCID: PMC11334226.

² Lu SV, Leung BMY, Bruton AM, Millington E, Alexander E, Camden K, Hatsu I, Johnstone JM, Arnold LE. Parents' priorities and preferences for treatment of children with ADHD: Qualitative inquiry in the MADDY study. Child Care Health Dev. 2022 Sep;48(5):852-861. doi: 10.1111/cch.12995. Epub 2022 Mar 25. PMID: 35244227; PMCID: PMC10215012.

³ Drechsler R, Brem S, Brandeis D, Grünblatt E, Berger G, Walitza S. ADHD: Current Concepts and Treatments in Children and Adolescents. Neuropediatrics. 2020 Oct;51(5):315-335. doi: 10.1055/s-0040-1701658. Epub 2020 Jun 19. PMID: 32559806; PMCID: PMC7508636.

About NeuroSigma

NeuroSigma is a bioelectronic medical device company based in Los Angeles, California. Its lead product, the Monarch eTNS^® System, is the first non-drug treatment for pediatric ADHD cleared by the FDA. NeuroSigma is also investigating the Monarch eTNS^® System in additional neurodevelopmental and neurological indications, including autism spectrum disorder, learning disabilities and drug-resistant epilepsy, for which the FDA has granted Breakthrough Device Designation; these pipeline indications are investigational and not FDA-cleared.

For more information, visit www.neurosigma.com and www.monarch-etns.com.

About Firefly Neuroscience

Firefly Neuroscience, Inc. (NASDAQ:AIFF) is an Artificial Intelligence ("AI") company advancing precision neuroscience, applying AI and large-scale electrophysiological data to give clinicians a more complete, objective picture of how an individual patient's brain is functioning. Firefly's proprietary database consists of over 200,000 EEG/ERP brain scans, which the Company believes to be the world's largest known standardized EEG/ERP repository. Firefly's EEG-based, AI-driven, and FDA-510(k)-cleared Evoke™ System is designed to support diagnostic and treatment monitoring methods for conditions such as depression, dementia, anxiety disorders, concussions, ADHD, and PTSD.

Please visit www.fireflyneuro.com for more information.

Forward-Looking Statements

Certain statements in this press release may constitute "forward-looking statements" for purposes of the federal securities laws concerning Firefly, including statements regarding the anticipated benefits, scope, and results of the collaboration between Firefly and NeruSigma, statements regarding NeruSigma's business, business, product and commercial plans; Firefly's ADHD biomarker research and product development; and statements relating to Firefly's management team's expectations, hopes, beliefs, intentions, or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. The words "anticipate," "believe," "contemplate," "continue," "could," "estimate," "expect," "intends," "may," "might," "plan," "possible," "potential," "predict," "project," "should," "will," "would" and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements are based on current expectations and beliefs concerning future developments and their potential effects. There can be no assurance that future developments affecting Firefly will be those that have been anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond Firefly's control) and other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described under the heading "Risk Factors" in the reports and other filings of Firefly with the Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should any of Firefly's assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. It is not possible to predict or identify all such risks. Forward-looking statements included in this press release only speak as of the date they are made, and Firefly does not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

Important Safety Information

The Monarch eTNS^® System is available by prescription only. It is indicated for the treatment of pediatric ADHD as a monotherapy for patients ages 7 through 12 who are not currently taking prescription ADHD medication and is intended for home use during sleep under the supervision of a caregiver. Monarch should not be used by patients with an implanted cardiac or neurostimulation system or an implanted metallic or electronic device in the head. Do not apply the device to the neck or chest, do not use it in the bath or shower, and do not use it in the presence of electrical monitoring equipment such as cardiac monitors. Apply the patch only to healthy, clean, intact skin. The most commonly reported side effects are drowsiness, increased appetite, trouble sleeping, teeth clenching, headache, and fatigue. Talk with your child’s clinician about whether Monarch is right for your child.

For complete safety information, see the Instructions for Use.

Investor & Media Contacts

For Firefly

Stephen Kilmer

(646) 274-3580

stephen.kilmer@fireflyneuro.com

For NeuroSigma

Colin Kealey, M.D.

President and Chief Executive Officer

ckealey@neurosigma.com