Information on the Total Number of Voting Rights (Denominator)

Liege, Belgium, 23 June 2020 – 17:45 CEST –In accordance with article 15 of the Belgian Act of 2 May 2007 on the disclosure of major participations in issuers of which shares are admitted to trading on a regulated market and regarding miscellaneous provisions, Mithra Pharmaceuticals SA (the “Company” or “Mithra”) announces the following information, following the issuance of 3,421,052 new shares on 23 June 2020 for an amount of EUR 65.0 million in gross proceeds in the framework of the private placement via an accelerated bookbuild offering publicly announced on 18 June 2020.