FRN Variable Rate Fix

LONDON, July 23, 2026–(BUSINESS WIRE)–

As Agent Bank, please be advised of the following rate determined on: 6/29/2026

Issue

¦ National Grid Electricity Transmission plc – Series 38 GBP 25,000,000 Index Linked FRN due 28 Jul 2056

ISIN Number

¦ XS0262082117

ISIN Reference

¦ 26208211

Issue Nomin GBP

¦ 25000000

Period

¦ 1/28/2026 to 7/28/2026

Payment Date 7/28/2026

Number of Days

¦ 181

Rate

¦ 3.32954

Denomination GBP

¦ 1000

¦ 25000000

¦

Amount Payable per Denomination

¦ 16.65

¦ 416192.5

¦

Bank of New York

Rate Fix Desk

Telephone

¦ 44 1202 689580

Corporate Trust Services

Facsimile

¦ 44 1202 689601

As Agent Bank, please be advised of the following rate determined on: 6/29/2026

¦ National Grid Electricity Transmission plc – Series 38 GBP 25,000,000 Index Linked FRN due 28 Jul 2056

Amount Payable per Denomination

View source version on businesswire.com: https://www.businesswire.com/news/home/20260723499294/en/

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