PRESS RELEASE REGULATED INFOMATION Publication relating to a transparency notification Mont-Saint-Guibert (Belgium), July 14, 2021, 10:30pm CET / 4:30pm ET – In accordance with article 14 of the Act of 2 May 2007 on the disclosure of large shareholdings, Nyxoah SA (Euronext Brussels/Nasdaq: NYXH) announces that it received a transparency notification as detailed below. On July 12, 2021, Nyxoah received a transparency notification from Deerfield Partners,