Announcement of regulated information according to Law 3556/2007

HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Announcement of regulated information according to Law 3556/2007

Hellenic Exchanges S.A. announces, pursuant to Law 3556/2007 and Law 3556/2007, that it was notified that the Deputy Chief Operations Officer Mr. Nikolaos Porfyris purchased on 16.05.2012, 500 HELEX common registered shares with a total value of €1,105.00.