ANNOUNCEMENT ON PURCHASE OF OWN SHARES

National Bank of Greece S.A. (“the Bank”), following its announcement of 22/09/2023 regarding its intention to initiate the implementation of a share buy-back program (the “Program”) of a maximum amount of share buy-back up to 1.5% of the sum of total outstanding shares (i.e. up to 13,720,727 shares, maximum amount which is still in force following the approval by the General Meeting of Shareholders of 25/07/2024 of the amendment of the Program) and its announcements of 19/12/2023, 11/01/2024 and 27/06/2024 on purchase of own shares, announces that in the period from 24/04/2025 up to and including 02/05/2025 has purchased a total amount of 599,572 common shares of the Bank (“Own Shares”) traded on the Athens Stock Exchange at a weighted average price of €9.5011 per share and at a total cost of €5,696,600.72.

This announcement is issued in accordance with the provisions of (EU) Regulation No 596/2014, the Commission Delegated Regulation (EU) 2016/1052 and Resolution No 25 of the Stock Markets Steering Committee of the Athens Exchange.