Notification about a significant change in the number of voting rights (Law 3556/2007)

HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Notification about a significant change in the number of voting rights (Law 3556/2007)

FRANKLIN TEMPLETON INSTITUTIONAL LLC informed the Company in writing on 05.06.2013 that on 03.06.2013 it bought common registered shares with a voting right of HELLENIC EXCHANGES S.A. HOLDING CLEARING SETTLEMENT & REGISTRY (HELEX). Following the above mentioned transaction, FRANKLIN TEMPLETON INSTITUTIONAL LLC indirectly holds 5.03% of the share capital of HELEX (from 4.87% before the transaction).