National Bank of Greece S.A.

Transaction in Own Shares • Jul 14, 2025

Athens, 14/07/2025

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 and 04/07/2025 on purchase of own shares, announces that in the period from 03/07/2025 up to and including 10/07/2025 has purchased a total amount of 419,910 common shares of the Bank ("Own Shares") traded on the Athens Stock Exchange at a weighted average price of €11.3403 per share and at a total cost of €4,761,913.12. 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.

Total cost (€)	Weighted Average Price (€)	Number of Shares	Date
1,225,958.12	11.1542	109,910	3/7/2025
333,189.00	11.1063	30,000	4/7/2025
1,108,430.00	11.0843	100,000	7/7/2025
681,294.00	11.3549	60,000	8/7/2025
697,398.00	11.6233	60,000	9/7/2025
715,644.00	11.9274	60,000	10/7/2025
4,761,913.12	11.3403	419,910	Total

The following transactions were executed during the abovementioned period:

Following the above transactions, the Bank holds directly a total of 5,123,154 Own Shares, which correspond to 0.56% 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.