Form 6-K NATIONAL GRID PLC For: May 29

May 29, 2026 8:10 AM EDT
 
 
UNITED STATES
 
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
 
 
FORM 6-K
 
 
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934
 
Date: 29 May 2026
 
Commission File Number: 001-14958
 
 
 
NATIONAL GRID plc
 
(Translation of registrant’s name into English)
 
England and Wales
 
(Jurisdiction of Incorporation) 
 
 
 
1-3 Strand, London, WC2N 5EH, United Kingdom
(Address of principal executive office)
 
 
 
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
 
  Form 20-F        Form 40-F
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  
 
Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3- 2(b) under the Securities Exchange Act of 1934.    Yes      No
 
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): n/a


 
 
 
 
 
EXHIBIT INDEX
 
Exhibit No. 
Description 
99.1
Exhibit 99.1 Announcement sent to the London Stock Exchange on 01 May 2026 — Total Voting Rights
99.2
Exhibit 99.2 Announcement sent to the London Stock Exchange on 11 May 2026 — Director/PDMR Shareholding
99.3
Exhibit 99.3 Announcement sent to the London Stock Exchange on 19 May 2026 — Director/PDMR Shareholding
99.4
Exhibit 99.4 Announcement sent to the London Stock Exchange on 20 May 2026 — Director/PDMR Shareholding
99.5
Exhibit 99.5 Announcement sent to the London Stock Exchange on 22 May 2026 — Director/PDMR Shareholding
99.6
Exhibit 99.6 Announcement sent to the London Stock Exchange on 26 May 2026 — Holding(s) in Company
 
 
Exhibit 99.1
 
 
1 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Voting Rights update
 
National Grid's registered capital as of 30 April 2026 consisted of 5,198,968,690 ordinary shares, of which, 223,421,690 were held as treasury shares; leaving a balance of 4,975,547,000 with voting rights.
 
The figure of 4,975,547,000 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid under the FCA's Disclosure Guidance and Transparency Rules.
 
Julian Baddeley                              
Group Company Secretary
 
 
Exhibit 99.2
 
 
11 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Notification of Transactions of Person Discharging Managerial Responsibilities ('PDMRs')
 
 
This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR'). In accordance with MAR, the relevant Financial Conduct Authority ('FCA') notification is set out below.
 
1
Details of the person discharging managerial responsibilities / person closely associated
a)
Name
Andy Agg
2
Reason for the notification
a)
Position/status
Chief Financial Officer
b)
Initial notification /Amendment
Initial notification
3
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
National Grid plc
b)
LEI
8R95QZMKZLJX5Q2XR704
4
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
a)
 
Description of the financial instrument, type of instrument
Identification code
Ordinary shares of 12 204/473p each
GB00BDR05C01
b)
Nature of the transaction
Monthly purchase of securities ("partnership shares") under the Share Incentive Plan
c)
Price(s) and volume(s)
Price(s)
Volume(s)
GBP 12.8356
12
d)
 
Aggregated information
- Aggregated volume
- Price
 
e)
Date of the transaction
2026.05.07
f)
Place of the transaction
London Stock Exchange (XLON)
 
 
 Exhibit 99.3
 
 
19 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Notification of Transaction of Person Discharging Managerial Responsibilities ('PDMR')
 
This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR') and relates to the purchase of American Depositary Shares by Paula Rosput Reynolds. On 18 May 2026, the Company received notification of the following transaction as detailed below. 
 
In accordance with MAR the relevant Financial Conduct Authority notification is set out below. 
 
1
Details of the person discharging managerial responsibilities / person closely associated
a)
Name
Paula Rosput Reynolds
2
Reason for the notification
a)
Position/status
Chair
b)
Initial notification /Amendment
Initial notification
3
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
National Grid plc
b)
LEI
8R95QZMKZLJX5Q2XR704
4
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
a)
 
Description of the financial instrument, type of instrument
Identification code
American Depository Shares  
US 6362744095  
b) 
Nature of the transaction
Purchase of American Depository Shares. 
c)
Price(s) and volume(s)
 
Price(s)
Volume(s)
USD 82.5350
1000
d)
 
Aggregated information
- Aggregated volume
- Price
 
e)
Date of the transaction
2026.05.18
f)
Place of the transaction
New York Stock Exchange (NYSE)
 
 
Exhibit 99.4
 

20 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Notification of Transaction of Person Discharging Managerial Responsibilities ('PDMR')
 
This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR') and relates to the purchase of American Depositary Shares by Earl Shipp. On 19 May 2026, the Company received notification of the following transaction as detailed below. 
 
In accordance with MAR the relevant Financial Conduct Authority notification is set out below. 
 
1
Details of the person discharging managerial responsibilities / person closely associated
a)
Name
Earl Shipp
2
Reason for the notification
a)
Position/status
Non-executive Director
b)
Initial notification /Amendment
Initial notification
3
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
National Grid plc
b)
LEI
8R95QZMKZLJX5Q2XR704
4
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
a)
 
Description of the financial instrument, type of instrument
Identification code
American Depository Shares  
US 6362744095  
b)
Nature of the transaction
Purchase of American Depository Shares. 
c)
 
Price(s) and volume(s)

Price(s)
Volume(s)
USD 84.435
118.4342
d)
 
Aggregated information
- Aggregated volume
- Price
 
e)
Date of the transaction
2026.05.19
f)
Place of the transaction
New York Stock Exchange (NYSE)
 
 
Exhibit 99.5
 
 
22 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Notification of Transaction of Person Discharging Managerial
Responsibilities ('PDMRs')
 
This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR') and relates to the purchase of Ordinary Shares by Jacqui Ferguson. On 22 May 2026, the Company received notification of the following transaction as detailed below. 
 
In accordance with MAR, the relevant Financial Conduct Authority notification is set out below.
 
1
Details of the person discharging managerial responsibilities / person closely associated
a)
Name
Jacqui Ferguson
2
Reason for the notification
a)
Position/status
Non-executive Director
b)
Initial notification /Amendment
Initial notification
3
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
National Grid plc
b)
LEI
8R95QZMKZLJX5Q2XR704
4
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
a)
 
Description of the financial instrument, type of instrument
Identification code
Ordinary shares of 12 204/473p each
GB00BDR05C01
b)
Nature of the transaction
Purchase of ordinary shares.
c)
 
Price(s) and volume(s)

Price(s)
Volume(s)
GBP 12.8145
1,936
d)
 
Aggregated information
- Aggregated volume
- Price
 
e)
Date of the transaction
2026.05.22 
f)
Place of the transaction
London Stock Exchange (XLON)
 

Exhibit 99.6
 
 
26 May 2026
 
National Grid plc ('National Grid' or 'Company')
 
Notification of Major Interest in National Grid Ordinary Shares
 
National Grid has received a notification on Form TR-1 from BlackRock, Inc. that its total interest in National Grid voting ordinary shares is as shown below.

 
TR-1: Standard form for notification of major holdings
 
1. Issuer Details
 
ISIN
GB00BDR05C01
 
Issuer Name
NATIONAL GRID PLC
 
UK or Non-UK Issuer
UK
 
2. Reason for Notification
 
An acquisition or disposal of voting rights
 
3. Details of person subject to the notification obligation
 
Name
BlackRock, Inc.
 
City of registered office (if applicable)
Wilmington
 
Country of registered office (if applicable)
USA
 
4. Details of the shareholder
 
Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above
 
 
City of registered office (if applicable)
 
 
Country of registered office (if applicable)
 
 
5. Date on which the threshold was crossed or reached
 
22-May-2026
 
6. Date on which Issuer notified
 
25-May-2026
 
7. Total positions of person(s) subject to the notification obligation
 
 
% of voting rights attached to shares (total of 8.A)
% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)
Total of both in % (8.A + 8.B)
Total number of voting rights held in issuer
Resulting situation on the date on which threshold was crossed or reached
 
4.940000
 
3.480000
 
8.420000
 
419793494
 
Position of previous notification (if applicable)
 
7.320000
 
0.850000
 
8.170000
 
 
 
8. Notified details of the resulting situation on the date on which the threshold was crossed or reached
 
8A. Voting rights attached to shares
 
Class/Type of shares ISIN code(if possible)
Number of direct voting rights (DTR5.1)
Number of indirect voting rights (DTR5.2.1)
% of direct voting rights (DTR5.1)
% of indirect voting rights (DTR5.2.1)
GB00BDR05C01
 
 
245824545
 
 
4.940000
 
   Sub Total 8.A
245824545
 
4.940000%
 
 
8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))
 
Type of financial instrument
Expiration date
Exercise/conversion period
Number of voting rights that may be acquired if the instrument is exercised/converted
% of voting rights
American Depository Receipt
 
 
 
5981459
 
0.120000
 
Securities Lending
 
 
 
165147748
 
3.310000
 
   Sub Total 8.B1
 
171129207
 
3.430000%
 
 
8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))
 
Type of financial instrument
Expiration date
Exercise/conversion period
Physical or cash settlement
Number of voting rights
% of voting rights
CFD
 
 
 
Cash
 
2839742
 
0.050000
 
   Sub Total 8.B2
 
2839742
 
0.050000%
 
 
9. Information in relation to the person subject to the notification obligation
 
2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)
 
 
Ultimate controlling person
Name of controlled undertaking
% of voting rights if it equals or is higher than the notifiable threshold
% of voting rights through financial instruments if it equals or is higher than the notifiable threshold
Total of both if it equals or is higher than the notifiable threshold
BlackRock, Inc. (Chain 1)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock (Singapore) Holdco Pte. Ltd.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock HK Holdco Limited
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Lux Finco S.a.r.l.
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Japan Holdings GK
 
 
 
 
BlackRock, Inc. (Chain 1)
 
BlackRock Japan Co., Ltd.
 
 
 
 
BlackRock, Inc. (Chain 2)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 2)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 2)
 
Trident Merger, LLC
 
 
 
 
BlackRock, Inc. (Chain 2)
 
BlackRock Investment Management, LLC
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Holdco 3, LLC
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Cayman 1 LP
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Cayman West Bay Finco Limited
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Cayman West Bay IV Limited
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Group Limited
 
 
 
 
BlackRock, Inc. (Chain 3)
 
BlackRock Investment Management (UK) Limited
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Australia Holdco Pty. Ltd.
 
 
 
 
BlackRock, Inc. (Chain 4)
 
BlackRock Investment Management (Australia) Limited
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Holdco 3, LLC
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Cayman 1 LP
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Cayman West Bay Finco Limited
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Cayman West Bay IV Limited
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock Group Limited
 
 
 
 
BlackRock, Inc. (Chain 5)
 
BlackRock International Limited
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Holdco 4, LLC
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Holdco 6, LLC
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Delaware Holdings Inc.
 
 
 
 
BlackRock, Inc. (Chain 6)
 
BlackRock Institutional Trust Company, National Association
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Holdco 4, LLC
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Holdco 6, LLC
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Delaware Holdings Inc.
 
 
 
 
BlackRock, Inc. (Chain 7)
 
BlackRock Fund Advisors
 
 
 
 
BlackRock, Inc. (Chain 8)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 8)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 8)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 8)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock (Singapore) Holdco Pte. Ltd.
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock HK Holdco Limited
 
 
 
 
BlackRock, Inc. (Chain 9)
 
BlackRock Asset Management North Asia Limited
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Holdco 3, LLC
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Cayman 1 LP
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Cayman West Bay Finco Limited
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Cayman West Bay IV Limited
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Group Limited
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock (Netherlands) B.V.
 
 
 
 
BlackRock, Inc. (Chain 10)
 
BlackRock Asset Management Deutschland AG
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Canada Holdings ULC
 
 
 
 
BlackRock, Inc. (Chain 11)
 
BlackRock Asset Management Canada Limited
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Capital Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 12)
 
BlackRock Advisors, LLC
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Holdco 3, LLC
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Cayman 1 LP
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Cayman West Bay Finco Limited
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Cayman West Bay IV Limited
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Group Limited
 
 
 
 
BlackRock, Inc. (Chain 13)
 
BlackRock Advisors (UK) Limited
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock Holdco 2, Inc.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock Financial Management, Inc.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock International Holdings, Inc.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BR Jersey International Holdings L.P.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock (Singapore) Holdco Pte. Ltd.
 
 
 
 
BlackRock, Inc. (Chain 14)
 
BlackRock (Singapore) Limited
 
 
 
 
BlackRock, Inc. (Chain 15)
 
BlackRock Saturn Subco, LLC
 
 
 
 
BlackRock, Inc. (Chain 15)
 
BlackRock Finance, Inc.
 
 
 
 
BlackRock, Inc. (Chain 15)
 
Trident Merger, LLC
 
 
 
 
BlackRock, Inc. (Chain 15)
 
BlackRock Investment Management, LLC
 
 
 
 
BlackRock, Inc. (Chain 15)
 
Amethyst Intermediate, LLC
 
 
 
 
BlackRock, Inc. (Chain 15)
 
Aperio Holdings, LLC
 
 
 
 
BlackRock, Inc. (Chain 15)
 
Aperio Group, LLC
 
 
 
 
 
10. In case of proxy voting
 
Name of the proxy holder
 
 
The number and % of voting rights held
 
 
The date until which the voting rights will be held

 
11. Additional Information
 
BlackRock Regulatory Threshold Reporting Team
Jana Blumenstein
020 7743 3650
 
12. Date of Completion
 
25th May 2026
 
13. Place Of Completion
 
12 Throgmorton Avenue, London, EC2N 2DL, U.K.
 
This notice is in compliance with National Grid's obligations under the Disclosure and Transparency Rules. 
 
Julian Baddeley  
Group Company Secretary
 
 
 

 
 
 
 
 
SIGNATURE
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
 
 
NATIONAL GRID plc
 
 
 
 
 
By:
 
Beth Melges
 
 
 
Beth Melges
Head of Plc Governance
 
 
 
 
Date: 29 May 2026


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