Transaction in Own Shares

MADRID--(BUSINESS WIRE)-- 

Borja Acha Besga
Secretary of the Board of Directors

Madrid, 14 July 2026

OTHER RELEVANT INFORMATION

In accordance with the provisions of Article 227 of Law 6/2023, of 17 March, on Securities Markets and Investment Services, ENDESA, S.A. (hereinafter referred to as ‘Endesa’ or ‘the Company’) discloses the following information:

Pursuant to the authorization granted by the General Shareholders’ Meeting held on 24 April 2024, as part of the share buyback framework for a maximum monetary amount of €2 billion (the “Framework Programme”) approved by Endesa’s Board of Directors held on 26 March 2025 (inside Information Notice to the Spanish National Securities Market Commission under registration number 2672), the Company has approved the implementation of the Sixth Tranche of the Share Buyback Framework Programme (Other Relevant Information Notice under registration number 41516) with the purpose of reducing Endesa’s share capital through the cancellation of the own shares acquired (subject to approval by the Company’s General Shareholders’ Meeting).

The Sixth Tranche of the Framework Programme will be executed in accordance with Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse, and Commission Delegated Regulation (EU) No 2016/1052 of 8 March 2016 (the “Regulations”), under the following terms and conditions:

Maximum monetary amount:	€ 500,000,000
Maximum number of shares:	69,494,889 Endesa shares
Execution period:	The Sixth Tranche will commence on 15 July 2026 and will end no later than 27 November 2026 and, in any case, when the maximum monetary amount is reached or the maximum number of shares is acquired.
	Notwithstanding the foregoing, the Company may temporarily suspend or terminate the execution of the Sixth Tranche early should any circumstances make it advisable or necessary
Trading venue:	Purchases will be made on the Spanish Stock Exchange Interconnection System - Continuous Market or through multilateral trading facilities (MTFs).
Trading conditions:	The shares will be purchased at market price, in accordance with the price and volume conditions established in Article 3 of Delegated Regulation (EU) No. 2016/1052.
	In particular, no more than 25% of the average daily trading volume of Endesa shares on each trading venue will be purchased on any trading day, with such average daily volume corresponding to the twenty business days preceding the date of each purchase.
Manager:	The execution will be carried out externally through a financial institution, which will independently make decisions regarding the timing of purchases.

As already indicated on 26 March 2025, the Company’s majority shareholder, Enel S.p.A., which holds 71.245% of the share capital, has expressed its commitment not to participate in the Framework Programme and, accordingly, not to sell Endesa’s shares on the market during the periods in which any tranche of the Framework Programme is being executed, including this Sixth Tranche.

The share purchase transactions carried out, as well as the completion or, where applicable, the interruption of the execution of the Sixth Tranche, will be duly communicated in accordance with the Regulations.

The shares purchased under the Programme will be held as treasury shares, pending approval of their cancellation by the Company’s General Shareholders’ Meeting.

Secretary of the Board of Directors