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)

TEMPLETON INVESTMENT COUNSEL LLC informed the Company in writing on 03.06.2011 that on 02.06.2011 it purchased common registered shares with a voting right of HELLENIC EXCHANGES S.A. HOLDING CLEARING SETTLEMENT & REGISTRY (HELEX). Following the abovementioned transaction, TEMPLETON INVESTMENT COUNSEL LLC indirectly holds 5.01% of the share capital of HELEX (from 4.74% before the transaction).