HELLENIC EXCHANGES-ATHENS STOCK EXCHANGE S.A. HOLDING (ΑΤΗΕΧ) informs investors that the 1^st Repetitive General Meeting of shareholders, which took place on Wednesday 13.06.2018, decided the following changes in the Company's share capital:

• Reduce the share capital by EUR9,089,850.00, through a reduction in the par value of each share by EUR0.15 and payment of this amount to shareholders, and amend Article 5 of the Articles of Association of the Company concerning the share capital
• Reduce the share capital by EUR173,190.00 by reducing the number of shares outstanding from 60,599,000 to 60,348,000 common registered shares, due to the cancellation of 251,000 shares in treasury stock, in accordance with article 16 of codified law 2190/1920, as it applies, and amend Article 5 of the Articles of Association of the Company concerning the share capital.

The abovementioned treasury stock was purchased from 09.02.2016 to 20.04.2017 in implementation of the decision of the 14^th Annual General Meeting on 20.05.2015.

The cancellation date for the 251,000 shares in treasury stock is Wednesday 8 August 2018.

On Thursday 12.07.2018, decision 76055/12.07.2018 of the Ministry of Economy and Development was registered at the General Electronic Commercial Registry (GEMI) (registration number 1422449), approving the modification of the relevant article in the Company's Articles of Association on the share capital. The ATHEX Corporate Actions Committee was informed on 02.08.2018 about the abovementioned change in the par value of the Company's shares.

Following the abovementioned changes, starting on 08 August 2018 the share capital of the Company will be EUR41,640,120.00, divided into 60,348,000 common registered shares, with a par value of EUR0.69 each.