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Publication of a Supplementary Prospectus
Nationwide Building Society has published a supplement to its Registration Document dated 3 July 2025 and to several Base Prospectuses, including those for its U.S.$35,000,000,000 European Note Programme, €45,000,000,000 Global Covered Bond Programme, and U.S.$25,000,000,000 Senior Preferred, Senior Non-Preferred and Subordinated Medium-Term Note Programme. This supplement, dated 16 December 2025, has been approved by the Financial Conduct Authority and is available for viewing. Disclaimer*

About this update from Nationwide Building Society
[{"type":"text","content":"\n\n \n \nPublication of a Supplement\n \nThe following supplement to the Registration Document dated 3 July 2025 and to the Base Prospectuses referred to below has been approved by the Financial Conduct Authority and is available for viewing: \n \nNationwide Building Society\nSupplement dated 16 December 2025 to the following documents previously published by Nationwide Building Society:\n(i) Registration Document dated 3 July 2025, as previously supplemented on 20 November 2025;\n(ii) Base Prospectus dated 1 August 2025 prepared in connection with the Nationwide Building Society U.S.$35,000,000,000 European Note Programme, as previously supplemented on 20 November 2025;\n(iii) Base Prospectus dated 3 July 2025 prepared in connection with the Nationwide Building Society €45,000,000,000 Global Covered Bond Programme unconditionally and irrevocably guaranteed as to payments by Nationwide Covered Bonds LLP, as previously supplemented on 11 August 2025 and 20 November 2025; and\n(iv) Base Prospectus dated 3 July 2025 prepared in connection with the Nationwide Building Society U.S.$25,000,000,000 Senior Preferred, Senior Non-Preferred and Subordinated Medium-Term Note Programme, as previously supplemented on 20 November 2025. \n \nTo view the full document, please paste the following URL into the address bar of your browser:\n \nhttp://www.rns-pdf.londonstockexchange.com/rns/8121L_1-2025-12-16.pdf\n \nA copy of the above document has also been submitted to the National Storage Mechanism and will shortly be available for inspection at: https://data.fca.org.uk/#/nsm/nationalstoragemechanism.\n \nFor further information, please contact:\n \nNationwide Building Society\nVikas Sidhu\nHead of Investor Relations and Treasury Sustainability\nTelephone: +44 (0) 7738 273287\nEmail: [email protected]\n \nNationwide Building Society\nNationwide House\nPipers Way\nSwindon SN38 1NW\n \nLegal Entity Identifier (LEI):\nNationwide Building Society: 549300XFX12G42QIKN82\nNationwide Covered Bonds LLP: 5493003J8ZGXTRDK6480\n \nDISCLAIMER - INTENDED ADDRESSEES\nUK MiFIR professionals/ECPs only/No UK PRIIPs KID\nEU MiFID II pro...