Hellenic Telecommunications Organization S.A.

Transaction in Own Shares • Nov 24, 2025

National Storage Mechanism | Additional information

RNS Number : 7024I

Hellenic Telecomms Organization S A

24 November 2025

Announcement

Purchase of Own Shares

Athens, November 24, 2025 - Hellenic Telecommunications Organization S.A, ("OTE" or the "Company"), announces that, during 17/11/2025 - 21/11/2025, it purchased 96,451 own shares, in the context of the Own Share Buy Back Programme for 2025, as follows: 

Date	Number of shares	Total amount (€)	Average  price (€)	Lowest price (€)	Highest price (€)
17/11/2025	2,341	39,148.11	16.72280	16.64	16.89
18/11/2025	26,235	437,688.49	16.68338	16.64	16.72
19/11/2025	46,173	770,868.89	16.69520	16.66	16.81
20/11/2025	9,310	155,765.08	16.73090	16.69	16.77
21/11/2025	12,392	208,970.52	16.86330	16.80	16.91
Total	96,451	1,612,441.09	16.71772

Following this, the Company holds 6,484,549 own shares or 1.606% of the total outstanding shares.

The announcement is issued in accordance with Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 and the Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016.

FOR FURTHER INFORMATION:

OTE GROUP INVESTOR RELATIONS

Τel. +30 210 6117364, +30 210 6332342

E-mail: [email protected], [email protected]

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [email protected] or visit www.rns.com.

RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy.

END

POSBIBRTMTITMRA