National Grid (NGG) Non-executive Director Jonathan Silver to step down after July 2026 AGM

Rhea-AI Filing Summary

National Grid plc has announced a planned Board change. Jonathan Silver, a Non-executive Director since 16 May 2019, will not seek re-election at the Company’s Annual General Meeting on 14 July 2026 and will step down from the Board at the conclusion of that meeting.

Chair Paula Reynolds thanked him for bringing valuable perspectives from his energy sector investing experience across government and private roles and for his time commitment amid an increasingly busy schedule. The update is made in line with Listing Rule 6.4.6(R).

Key Figures

AGM date: 14 July 2026 Board service start date: 16 May 2019 Announcement date: 2 June 2026 +1 more

4 metrics

AGM date 14 July 2026 Date of Annual General Meeting when director steps down

Board service start date 16 May 2019 Jonathan Silver’s appointment as Non-executive Director

Announcement date 2 June 2026 Date Board change announcement was sent to London Stock Exchange

Form date 03 June 2026 Date on the Form 6-K submitted to the SEC

Key Terms

Form 6-K, Non-executive Director, Annual General Meeting, Listing Rule 6.4.6(R), +1 more

5 terms

Form 6-K regulatory

"FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

Non-executive Director financial

"Jonathan has served as a Non-executive Director of the Company since 16 May 2019."

A non-executive director is a member of a company’s board who does not work for the company day-to-day but provides independent oversight, strategic guidance and checks on management. For investors, they matter because they act like an impartial referee or outside advisor, helping ensure decisions protect shareholder interests, reduce risks of poor governance, and add credibility to financial reporting and long-term strategy.

Annual General Meeting financial

"will not be seeking re-election by shareholders at the Company's Annual General Meeting ('AGM') on 14 July 2026"

Listing Rule 6.4.6(R) regulatory

"This announcement is made in accordance with the requirements of Listing Rule 6.4.6(R)."

foreign private issuer regulatory

"FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

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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: 03 June 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 02 June 2026 — Board change

Exhibit 99.1

2 June 2026

National Grid plc ('National Grid' or the 'Company')

Board change

The Company announces that Jonathan Silver will not be seeking re-election by shareholders at the Company's Annual General Meeting ('AGM') on 14 July 2026 and will therefore step down from the Board at the conclusion of the AGM. Jonathan has served as a Non-executive Director of the Company since 16 May 2019.

Paula Reynolds, Chair of National Grid, said "Jonathan brought unique perspectives to the Board over the past seven years, reflecting his deep experience as an investor in the energy sector in government and the private sector. We have appreciated the time Jonathan has devoted to the Company against the backdrop of an increasingly busy schedule. On behalf of the Board, I wish him every success for the future."

This announcement is made in accordance with the requirements of UK Listing Rule 6.4.6(R).

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: 03 June 2026



FAQ

What Board change did National Grid (NGG) announce in this 6-K?

National Grid announced that Non-executive Director Jonathan Silver will not seek re-election at the 14 July 2026 AGM and will step down from the Board at the end of that meeting, ending his service that began in May 2019.

When will Jonathan Silver leave the National Grid (NGG) Board?

Jonathan Silver will leave the National Grid Board at the conclusion of the Annual General Meeting on 14 July 2026. Until then, he continues to serve as a Non-executive Director, providing continuity during the transition period.

How long has Jonathan Silver served on the National Grid (NGG) Board?

Jonathan Silver has served as a Non-executive Director of National Grid since 16 May 2019. By the time he steps down at the 14 July 2026 AGM, he will have completed more than seven years on the Board.

Who commented on Jonathan Silver’s departure from the National Grid (NGG) Board?

Paula Reynolds, Chair of National Grid, commented on Jonathan Silver’s departure. She highlighted his unique perspectives from energy sector investing in government and private roles and expressed appreciation for his time and contributions to the Company.

Under which regulatory requirement was this National Grid (NGG) Board change disclosed?

The Board change was disclosed in accordance with Listing Rule 6.4.6(R). This rule requires timely announcements of certain Board changes, ensuring shareholders are informed about significant shifts in company governance and Board composition.