<SEC-DOCUMENT>0001654954-25-013492.txt : 20251128
<SEC-HEADER>0001654954-25-013492.hdr.sgml : 20251128
<ACCEPTANCE-DATETIME>20251128103031
ACCESSION NUMBER:		0001654954-25-013492
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251128
FILED AS OF DATE:		20251128
DATE AS OF CHANGE:		20251128

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATIONAL GRID PLC
		CENTRAL INDEX KEY:			0001004315
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				980367158
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14958
		FILM NUMBER:		251533226

	BUSINESS ADDRESS:	
		STREET 1:		1-3 STRAND
		CITY:			LONDON
		STATE:			X0
		ZIP:			WC2N 5EH
		BUSINESS PHONE:		(44) 207 004 3220

	MAIL ADDRESS:	
		STREET 1:		1-3 STRAND
		CITY:			LONDON
		STATE:			X0
		ZIP:			WC2N 5EH

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONAL GRID TRANSCO PLC
		DATE OF NAME CHANGE:	20021121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONAL GRID GROUP PLC
		DATE OF NAME CHANGE:	19991007

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONAL GRID HOLDING PLC
		DATE OF NAME CHANGE:	19991007
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>a28nov25.htm
<DESCRIPTION>BATCH FILING
<TEXT>
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UNITED STATES</font></div>
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SECURITIES AND EXCHANGE COMMISSION</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
Washington D.C. 20549</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">___________________________________________________&#xA0;</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 24px">
FORM 6-K</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">___________________________________________________&#xA0;</font></div>
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REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934</font></div>
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Date: 28 November 2025</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
Commission File Number: 001-14958</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">___________________________________________________&#xA0;</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
NATIONAL GRID plc</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">(Translation
of registrant&#x2019;s name into English)</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
England and Wales</font></div>
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&#xA0;<font style="font-family: Times New Roman; font-size: 13px">(Jurisdiction of
Incorporation)&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">___________________________________________________&#xA0;</font></div>
</div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
1-3 Strand, London, WC2N 5EH, United Kingdom</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">(Address
of principal executive office)</font></div>
<div>
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<font style="font-family: Times New Roman; font-size: 13px;">___________________________________________________&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Indicate
by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form&#xA0;40-F.</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px"><font>
&#x2612;</font>&#xA0;&#xA0;Form&#xA0;20-F&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<font>&#x2610;</font>&#xA0;&#xA0;Form&#xA0;40-F</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">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):&#xA0;&#xA0;<font>&#x2610;</font></font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">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):&#xA0;&#xA0;<font>&#x2610;</font></font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">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.&#xA0;&#xA0;<font>&#x2610;</font>&#xA0;&#xA0;Yes&#xA0;&#xA0;&#xA0;&#xA0;<font>&#x2612;</font>&#xA0;&#xA0;No</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">If
&#x201C;Yes&#x201D; is marked, indicate below the file number
assigned to the registrant in connection with Rule 12g3-2(b):
n/a</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
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<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
EXHIBIT INDEX</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
Exhibit No.</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
Description</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 450px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 10%; border-left: 0.5pt solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
99.1</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Exhibit
99.1 Announcement sent to the London Stock Exchange on 03 November
2025<font style="color: #000000; background-color: #FFFFFF">&#xA0;</font>&#x2014;
Total Voting Rights</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 10%; border-left: 0.5pt solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
99.2</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 50%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Exhibit
99.2 Announcement sent to the London Stock Exchange on 10 November
2025<font style="color: #000000; background-color: #FFFFFF">&#xA0;</font>&#x2014;
Director/PDMR Shareholding</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 10%; border-left: 0.5pt solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
99.3</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 50%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Exhibit
99.3 Announcement sent to the London Stock Exchange on 18 November
2025<font style="color: #000000; background-color: #FFFFFF">&#xA0;</font>&#x2014;
Director/PDMR Shareholding</font></div>
</td>
</tr></table>
</div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Exhibit
99.1</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
3 November 2025</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
National Grid plc&#xA0;('National
Grid'&#xA0;or&#xA0;'Company')</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
Voting Rights update</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
National Grid's registered capital as of 31 October 2025 consisted
of 5,191,884,002 ordinary shares, of which,&#xA0;230,345,795 were
held as treasury shares; leaving a balance of 4,961,538,207 with
voting rights.</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px"><font style="color: #000000">
The figure of 4,961,538,207 may be used by shareholders as the
denominator for the calculations by which they will determine if
they are required</font><font style="color: #000000; font-family: Times New Roman">&#xA0;</font><font style="color: #000000">to
notify their interest in, or a change to their interest in,
National Grid under the FCA's Disclosure Guidance and Transparency
Rules.</font></font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Julian Baddeley</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Group Company Secretary</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Exhibit
99.2</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
10 November 2025</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 18px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
National Grid plc&#xA0;('National
Grid'&#xA0;or&#xA0;'Company')</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
Notification of Transactions of Persons Discharging Managerial
Responsibilities ('PDMRs')</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 18px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px"><font style="color: #000000; background-color: #FFFFFF">
This announcement is made in accordance with Article
19</font><font style="color: #000000; font-family: Times New Roman">&#xA0;</font><font style="color: #000000">of
the Market Abuse Regulation ('MAR'). In accordance with MAR, the
relevant Financial Conduct Authority ('FCA') notifications are set
out below.</font></font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
1</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the person discharging managerial responsibilities /
person closely associated</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Andy
Agg</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
2</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Reason for the notification</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Position/status</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Chief
Financial Officer</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Initial notification /Amendment</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Initial
notification</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
3</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the issuer, emission allowance market participant,
auction platform, auctioneer or auction monitor</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">National
Grid plc</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
LEI</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">8R95QZMKZLJX5Q2XR704</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
4</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-weight: bold; font-family: Times New Roman; font-size: 13px">
Details of the transaction(s): section to be repeated for (i) each
type of instrument; (ii) each type of transaction; (iii) each date;
and (iv) each place where transactions have been
conducted</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Description of the financial instrument, type of
instrument</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Identification
code</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Ordinary shares of 12 204/473p each</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
GB00BDR05C01</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Nature of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Monthly purchase of securities ("partnership shares") under the
Share Incentive Plan</font></div>
</td>
</tr><tr>
<td rowspan="2" style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
c)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td rowspan="2" style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Price(s) and volume(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Price(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Volume(s)</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">GBP
11.588</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">13</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
d)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Aggregated information</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Aggregated volume</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Price</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
e)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Date of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">2025.11.07</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
f)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Place of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">London
Stock Exchange (XLON)</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr></table>
</div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
1</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the person discharging managerial responsibilities /
person closely associated</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">John
Pettigrew</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
2</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Reason for the notification</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Position/status</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Chief
Executive</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Initial notification /Amendment</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Initial
notification</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
3</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the issuer, emission allowance market participant,
auction platform, auctioneer or auction monitor</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">National
Grid plc</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
LEI</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">8R95QZMKZLJX5Q2XR704</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
4</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-weight: bold; font-family: Times New Roman; font-size: 13px">
Details of the transaction(s): section to be repeated for (i) each
type of instrument; (ii) each type of transaction; (iii) each date;
and (iv) each place where transactions have been
conducted</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Description of the financial instrument, type of
instrument</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Identification
code</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Ordinary shares of 12 204/473p each</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
GB00BDR05C01</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Nature of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Monthly purchase of securities ("partnership shares") under the
Share Incentive Plan</font></div>
</td>
</tr><tr>
<td rowspan="2" style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
c)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td rowspan="2" style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Price(s) and volume(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Price(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Volume(s)</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">GBP
11.588</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">13</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
d)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Aggregated information</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Aggregated volume</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Price</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
e)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Date of the transaction</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">2025.11.07</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
f)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Place of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 63%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">London
Stock Exchange (XLON)</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr></table>
</div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
1</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the person discharging managerial responsibilities /
person closely associated</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Will
Serle</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
2</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Reason for the notification</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Position/status</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Chief
People Officer</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Initial notification /Amendment</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Initial
notification</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
3</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the issuer, emission allowance market participant,
auction platform, auctioneer or auction monitor</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">National
Grid plc</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
LEI</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">8R95QZMKZLJX5Q2XR704</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
4</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-weight: bold; font-family: Times New Roman; font-size: 13px">
Details of the transaction(s): section to be repeated for (i) each
type of instrument; (ii) each type of transaction; (iii) each date;
and (iv) each place where transactions have been
conducted</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Description of the financial instrument, type of
instrument</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Identification
code</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Ordinary shares of 12 204/473p each</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
GB00BDR05C01</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Nature of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Monthly purchase of securities ("partnership shares") under the
Share Incentive Plan</font></div>
</td>
</tr><tr>
<td rowspan="2" style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
c)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td rowspan="2" style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Price(s) and volume(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 31%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Price(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 31%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Volume(s)</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 31%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">GBP
11.588</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 31%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">13</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
d)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Aggregated information</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Aggregated volume</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Price</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
e)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Date of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">2025.11.07</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
f)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 34%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Place of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 62%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">London
Stock Exchange (XLON)</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr></table>
</div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px"><font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font>Exhibit 99.3</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 18px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
18 November 2025</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 18px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
National Grid plc&#xA0;('National
Grid'&#xA0;or&#xA0;'Company')</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
Notification of Transactions of Persons Discharging
Managerial</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #005199; font-family: Times New Roman; font-size: 13px">
Responsibilities ('PDMRs')</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 18px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px"><font style="color: #000000; background-color: #FFFFFF">
This announcement is made in accordance with Article 19 of the
Market Abuse Regulation ('MAR') and relates to the purchase of
shares by a Non-Executive Director.</font><font style="color: #000000; font-family: Times New Roman">&#xA0;</font><font style="color: #000000">On
17 November 2025, the Company was notified that Iain Mackay,
Non-Executive Director, purchased 4,500 ordinary
shares.</font></font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
In accordance with MAR, the relevant Financial Conduct Authority
notification is set out below.</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
1</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-top: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the person discharging managerial responsibilities /
person closely associated</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Iain Mackay</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
2</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Reason for the notification</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Position/status</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Non-Executive
Director</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Initial notification /Amendment</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">Initial
notification</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
3</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
Details of the issuer, emission allowance market participant,
auction platform, auctioneer or auction monitor</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Name</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">National
Grid plc</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
LEI</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">8R95QZMKZLJX5Q2XR704</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; color: #000000; font-family: Times New Roman; font-size: 13px">
4</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="3" style="vertical-align: top; width: 96%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-weight: bold; font-family: Times New Roman; font-size: 13px">
Details of the transaction(s): section to be repeated for (i) each
type of instrument; (ii) each type of transaction; (iii) each date;
and (iv) each place where transactions have been
conducted</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
a)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Description of the financial instrument, type of
instrument</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Identification
code</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Ordinary shares of 12 204/473p each</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
GB00BDR05C01</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
b)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Nature of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Purchase of ordinary shares.</font></div>
</td>
</tr><tr>
<td rowspan="2" style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
c)</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td rowspan="2" style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Price(s) and volume(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Price(s)</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Volume(s)</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">GBP
11.735285</font></div>
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<font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 32%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">4,500</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
d)</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Aggregated information</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Aggregated volume</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
- Price</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
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<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
e)</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Date of the transaction</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: top; width: 64%; border-left: 0.5pt solid #000000; border-right: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">2025.11.17</font></div>
<div style="text-align: justify; margin-left: 480px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 4%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
f)</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 33%; border-left: 0.5pt solid #000000; border-bottom: 2px solid #000000">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Place of the transaction</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">London
Stock Exchange (XLON)</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr></table>
</div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">
SIGNATURE</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
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.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 75%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td colspan="2" style="vertical-align: bottom; width: 25%">
<div style="text-align: left; margin-left: 24px; margin-right: 0px; text-indent: -12px">
<font style="font-family: Times New Roman; font-size: 13px">NATIONAL GRID
plc</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 75%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: bottom; width: 6%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: bottom; width: 19%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 75%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 6%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-style: italic; color: #000000; font-family: Times New Roman; font-size: 13px">
By:</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 19%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-style: italic; color: #000000; font-family: Times New Roman; font-size: 13px">
Beth Melges</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 75%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: bottom; width: 6%">
<div><font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 19%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Beth Melges</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Head of Plc Governance</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</td>
</tr></table>
</div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">Date:<font style="color: #000000; background-color: #FFFFFF">&#xA0;</font>28
November 2025</font></div>


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