HOLMES MASTER ISSUER PLC

(a public company incorporated with limited liability in England and Wales with registered number 05953811) (the "Company")

Publication of Final Terms

The following final terms (the Final Terms) are available for viewing:

£500,000,000 Series 2026-1 Class A1 Floating Rate Notes due October 2072 (Reg S Global Note ISIN: (XS3251494004)), and £750,000,000 Series 2026-1 Class A2 Floating Rate Notes due October 2072 (Reg S Global Note ISIN: (XS3251494269)) under the Residential Mortgage-Backed Note Issuance Programme of the Company (the Programme).

To view the full Final Terms document, please click on or paste the following URL into the address bar of your browser:

https://data.fca.org.uk/artefacts/NSM/FCA/NI-000137945/NI-000137945.pdf

A copy of the above Final Terms has been submitted to the National Storage Mechanism and will shortly be available for inspection at: https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

The Final Terms will also shortly be available for inspection at: https://www.santander.co.uk/about-santander/investor-relations/holmes-master-trust.

For further information, please contact:

Funding, Asset Rotation and Investor Relations
Santander UK plc
2 Triton Square
Regent's Place
London NW1 3AN

Email: [email protected]

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Final Terms and the base prospectus published in respect of the Programme on 14 May 2025 as supplemented on 24 June 2025 (the Prospectus) may be addressed to and/or targeted at persons who are residents of particular countries only (as further specified in the Final Terms and the Prospectus) and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the offer contained in the Final Terms and the Prospectus is not addressed. Prior to relying on the information contained in the Final Terms and the Prospectus you must ascertain from the Final Terms and the Prospectus whether or not you are part of the intended addressees of the information contained therein. Your right to access this service is conditional upon complying with the above requirement.