Hellenic Exchanges S.A. announces, pursuant to Law 3556/2007 (articles 3 and 21) and in conjunction with article 11 of resolution 1/434/03.07.2007 of the Capital Market Commission, that EFG Eurobank Securities notified it on 29.09.2008 that it sold on 26.09.2008 7,100 HELEX common registered shares with a total value of euro 61,766.00. The above transaction was made for the derivatives market making account.