Αthens, April 11, 2018 – Hellenic Telecommunications Organization S.A. (“OTE S.A.” or the “Company”) announces that, Mr. Stratos Athanasios, Executive Director Customer Services Fixed & Mobile, according to his transaction notification towards the Company dated 11/04/2018, bought on 03/04/2018, 500 shares of OTE S.A. for a total value of €5,360.00.

This announcement is issued as a Regulated Information, in accordance with Law 3556/2007, [article 3, par. 1 (p), (bb), and article 21] and Regulation No 596/2014 of the European Parliament and of the Council on market abuse.