National Bank of Greece S.A.

Transaction in Own Shares • Jul 21, 2025

Athens, 21/07/2025

ANNOUNCEMENT ON PURCHASE OF OWN SHARES

National Bank of Greece S.A. ("the Bank"), following the resolutions of the Annual General Meeting of its Shareholders held on 30/05/2025 and its announcement of 04/06/2025 on the commencement of the implementation of the first tranche of the share buyback program approved by the above-mentioned Annual General Meeting (Tranche I), the respective approval of the Single Supervisory Mechanism (SSM) of the European Central Bank (ECB) on 28/05/2025 and its announcements of 16/06/2025, 26/06/2025, 04/07/2025 and 14/07/2025 on purchase of own shares, announces that in the period from 11/07/2025 up to and including 18/07/2025 has purchased a total amount of 300,000 common shares of the Bank ("Own Shares") traded on the Athens Stock Exchange at a weighted average price of €11.8712 per share and at a total cost of €3,561,351.00. It is noted that in accordance with the resolutions of above-mentioned Annual General Meeting, the Bank intends to proceed with a subsequent cancellation of the above acquired own shares, in accordance with the relevant provisions regarding the time frame for the cancellation of Law 4548/2018.

Date	Number of Shares	Weighted Average Price (€)	Total cost (€)
11/7/2025	30,000	11.9659	358,977.00
14/7/2025	30,000	11.7309	351,927.00
15/7/2025	30,000	11.7513	352,539.00
16/7/2025	70,000	11.7988	825,916.00
17/7/2025	70,000	11.9174	834,218.00
18/7/2025	70,000	11.9682	837,774.00
Total	300,000	11.8712	3,561,351.00

The following transactions were executed during the abovementioned period:

Following the above transactions, the Bank holds directly a total of 5,423,154 Own Shares, which correspond to 0.59% of its share capital.

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.