SANTANDER UK PLC

Capital/Financing Update • Sep 9, 2025

National Storage Mechanism | Additional information

FRN Variable Rate Fix

Santander UK PLC

Issue of GBP 1,100,000,000.00

Floating Rate Covered Bonds due June 2028

Series 81 Tranche 1 MTN

ISSUE NAME.

Our Ref. MP7664

ISIN Code. XS2643036218

TOTAL INTEREST AMT.

CURRENCY CODE. GBP

DAY BASIS. ACTUAL/365 FIXED (A005)

NUM OF DAYS. 92

INTEREST RATE. 4.6589 PCT

VALUE DATE. 12/09/2025

INTEREST PERIOD. 12/06/2025 TO 12/09/2025

GBP 12,917,278.9

POOL FACTOR. N/A

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