Information on the total number of voting rights and shares

REGULATED INFORMATION

Information on the total number of voting rights and shares

Mont-Saint-Guibert (Belgium), February 25, 2026, 10:30 pm CET / 4:30 pm ET – In accordance with article 15 of the Law of 2 May 2007 on the disclosure of large shareholdings, Nyxoah SA (Euronext Brussels and Nasdaq: NYXH) publishes the below information following the issue of new shares on February 20, 2026.

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Contact:

Nyxoah

John Landry, CFO

IR@nyxoah.com

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