HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Share buyback

Hellenic Exchanges- Athens Stock Exchange (ATHEX) informs investors that, based on §4 article 4 of the European Commission Regulation 2273/2003, and in implementation of the decision of the Annual General Meeting of shareholders of the Company of 20.5.2015, it purchased own shares; in particular, on 16.12.2016, 18,000 own shares were purchased, at an average price of EUR4.72 per share, and total transaction cost of EUR84,931.15.

The transactions took place through the member of Athens Exchange “Piraeus Securities”.

Following the above mentioned purchases, the Company today possesses 3,924,918 own shares (6.00% of the 65,368,563 shares outstanding).