Nyxoah's Genio® Wins Prix Galien UK 2026 Award for Best Medical Technology

Mont-Saint-Guibert, Belgium – June 15, 2026, 10:05 pm CET / 04:05 pm ET – Nyxoah SA (Euronext Brussels/Nasdaq: NYXH) ("Nyxoah" or the "Company"), a medical technology company focused on developing innovative solutions for Obstructive Sleep Apnea (OSA), today announced that Genio®, its hypoglossal nerve stimulation therapy for OSA, was awarded the Prix Galien UK 2026 Award for Best Medical Technology at a ceremony held in London.

The Prix Galien Award is widely regarded as one of the highest honors in healthcare innovation, recognizing technologies that deliver meaningful advances in patient care and outcomes. The award recognizes Genio's contribution to the treatment of Obstructive Sleep Apnea, a chronic condition affecting millions of people and associated with increased risks of cardiovascular disease, metabolic disorders, impaired quality of life and excessive daytime sleepiness.

"What makes this recognition particularly special is that it reflects the efforts of so many people behind the scenes. From the engineers who developed the technology, to our UK team and staff supporting patients, to the physicians implanting the therapy and the patients who placed their trust in us, this achievement belongs to all of them," said Olivier Taelman, Chief Executive Officer.

Nyxoah also wishes to acknowledge the clinicians, healthcare professionals and patients who have supported the development, evaluation and adoption of Genio around the world. In the United Kingdom, the award reflects the commitment of a growing team working alongside NHS and private healthcare partners to expand access to innovative treatment options for patients living with Obstructive Sleep Apnea.

The award comes during a period of significant momentum for Nyxoah. Following FDA approval and the commercial launch of Genio in the United States, the Company recently secured new financing to accelerate its U.S. expansion, while adoption of Genio continues to grow across Europe and other international markets.

About Nyxoah

Nyxoah is a medical technology company focused on the development and commercialization of innovative solutions to treat OSA. Nyxoah's lead solution is the Genio system, a patient-centered, leadless and battery-free hypoglossal neurostimulation therapy for OSA, the world's most common sleep disordered breathing condition that is associated with increased mortality risk and cardiovascular comorbidities. Nyxoah is driven by the vision that OSA patients should enjoy restful nights and feel enabled to live their life to its fullest.

Following the successful completion of the BLAST OSA study, the Genio system received its European CE Mark in 2019. Nyxoah completed two successful IPOs: on Euronext Brussels in September 2020 and NASDAQ in July 2021. Following the positive outcomes of the BETTER SLEEP study, Nyxoah received CE mark approval for the expansion of its therapeutic indications to Complete Concentric Collapse (CCC) patients, currently contraindicated in competitors' therapy. Additionally, the Company announced positive outcomes from the DREAM IDE pivotal study and receipt of approval from the FDA for a subset of adult patients with moderate to severe OSA with an AHI of greater than or equal to 15 and less than or equal to 65.

For more information, please visit http://www.nyxoah.com.

Caution – CE marked since 2019. FDA approved in August 2025 as prescription-only device.

Forward-looking statements

Certain statements, beliefs and opinions in this press release are forward-looking, which reflect the Company's or, as appropriate, the Company directors' or management's current expectations regarding the completed offering and the intended use of proceeds therefrom; the Company's capital position; the drawdown under the European Investment Bank loan; its planned CEO transition; the Genio system; the potential advantages of the Genio system; and the Company's commercialization strategy and growth in the U.S. market. By their nature, forward-looking statements involve a number of risks, uncertainties, assumptions and other factors that could cause actual results or events to differ materially from those expressed or implied by the forward-looking statements. These risks, uncertainties, assumptions and factors could adversely affect the outcome and financial effects of the plans and events described herein. These risks and uncertainties include, but are not limited to, the risks and uncertainties set forth in the "Risk Factors" section of the Company's Annual Report on Form 20-F for the year ended December 31, 2025, filed with the Securities and Exchange Commission ("SEC") on March 26, 2026 and subsequent reports that the Company files with the SEC. A multitude of factors including, but not limited to, changes in demand, competition and technology, can cause actual events, performance or results to differ significantly from any anticipated development. Forward-looking statements contained in this press release regarding past trends or activities are not guarantees of future performance and should not be taken as a representation that such trends or activities will continue in the future. In addition, even if actual results or developments are consistent with the forward-looking statements contained in this press release, those results or developments may not be indicative of results or developments in future periods. No representations and warranties are made as to the accuracy or fairness of such forward-looking statements. As a result, the Company expressly disclaims any obligation or undertaking to release any updates or revisions to any forward-looking statements in this press release as a result of any change in expectations or any change in events, conditions, assumptions or circumstances on which these forward-looking statements are based, except if specifically required to do so by law or regulation. Neither the Company nor its advisers or representatives nor any of its subsidiary undertakings or any such person's officers or employees guarantees that the assumptions underlying such forward-looking statements are free from errors nor does either accept any responsibility for the future accuracy of the forward-looking statements contained in this press release or the actual occurrence of the forecasted developments. You should not place undue reliance on forward-looking statements, which speak only as of the date of this press release.

Contacts:

Nyxoah

John Landry, CFO

IR@nyxoah.com

Rémi Renard, Head of Investor Relations & Corporate Communication

IR@nyxoah.com

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