Business
Transaction in Own Shares
MADRID, October 15, 2025-- Borja Acha BesgaSecretary of the Board of Directors
About this update from Endesa S.a.
MADRID, October 15, 2025 --( BUSINESS WIRE )-- Borja Acha Besga Secretary of the Board of Directors Madrid, 15 October 2025 OTHER RELEVANT INFORMATION In accordance with the provisions of Article 227 of the Spanish Securities Market Act, ENDESA, S.A. (hereinafter referred to as ' Endesa ' or ' the Company ') discloses the following information: Pursuant to the authorisation granted by the General Shareholders’ Meeting held on April 24, 2024, as part of the share buyback framework programme for a maximum monetary amount of €2 billion ("Framework Programme") approved by the Board of Directors of Endesa at its meeting held on March 26, 2025 (Inside Information Notice to the Spanish National Securities Market Commission with registration number 2672), the Company has approved the implementation of the Third Tranche of the Share Buyback Framework Programme (Other Relevant Information Notice with registration number 37164) with the purpose of reducing Endesa’s share capital through the cancellation of the acquired own shares (subject to the approval of the Company’s General Shareholders’ Meeting). This Third Tranche of the Framework Programme will be executed in accordance with the provisions of 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"), and under the following terms and conditions: As previously indicated on 26 March 2025, the Company’s majority shareholder, Enel S.p.A., holder of 70.10% of the share capital, has expressed its commitment not to participate in the Framework Programme and, accordingly, not to sell Endesa shares on the market during the periods in which any tranche of the Framework Programme is being executed, including this Third Tranche. The share purchase transactions carried out, as well as the completion or, where applicable, the interruption of the execution of the Third 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 Endesa, S.A. registered office in Madrid, C / Ribera del Loira, 60. Registered in the Madrid Commercial Registry, Sheet M-6405, volume 323, folio 1, TIN. A28023430 View source version on businesswire.com: https://www.businesswire.com/news/home/20251015139466/en/ Contacts Endesa, S.A.