a2052q
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Date: 23 January 2026
Commission File Number: 001-14958
NATIONAL GRID plc
(Translation
of registrant’s name into English)
England and Wales
(Jurisdiction
of Incorporation)
1-3 Strand, London, WC2N 5EH, United Kingdom
(Address
of principal executive office)
Indicate
by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.
☒ Form 20-F ☐ Form 40-F
Indicate
by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule
101(b)(1): ☐
Indicate
by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule
101(b)(7): ☐
Indicate
by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information
to the Commission pursuant to Rule 12g3- 2(b) under the Securities
Exchange Act of 1934. ☐ Yes ☒ No
If
“Yes” is marked, indicate below the file number
assigned to the registrant in connection with Rule 12g3-2(b):
n/a
EXHIBIT INDEX
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Exhibit No.
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Description
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99.1
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Exhibit
99.1 Announcement sent to the London Stock Exchange on 23 January
2026 —
Publication of a Supplementary Prospectus
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Exhibit
99.1
23 January 2026
National Grid plc / National Grid Electricity Transmission
plc
Publication of a Supplementary Prospectus
The following supplementary prospectus has been approved by the
Financial Conduct Authority and is available for
viewing:
The Supplementary Prospectus dated 23
January 2026 (the "Supplementary Prospectus")
supplementing the prospectus dated 19 August 2025 (the
"Prospectus") for the National Grid plc and National Grid
Electricity Transmission plc Euro 20,000,000,000 Euro Medium Term
Note Programme.
The Supplementary Prospectus should be read and construed in
conjunction with the Prospectus.
To view the full Supplementary Prospectus, please paste the
following URL into the address bar of your browser:
http://www.rns-pdf.londonstockexchange.com/rns/2048Q_1-2026-1-23.pdf
A copy of the Supplementary Prospectus has been submitted to the
National Storage Mechanism and will shortly be available to the
public for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.
For further information, please contact:
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Kwok Liu
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+44 (0) 7900 405 729 (m)
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Deputy Treasurer, Funding & Investment
National Grid plc
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Ben Davis
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+44 (0) 7971 539999
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Senior Manager, Media & PR
National Grid plc
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DISCLAIMER - INTENDED ADDRESSEES
Please note that the information contained in the Prospectus may be
addressed to and/or targeted at persons who are residents of
particular countries (specified in the Prospectus) only 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
Prospectus is not addressed. Prior to relying on the information
contained in the Prospectus you must ascertain from 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.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of
1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly
authorized.
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NATIONAL GRID
plc
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By:
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Beth Melges
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Beth Melges
Head of Plc Governance
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Date: 23
January 2026