National Grid posts 2025/26 report and 2026 AGM notice

National Grid plc has published its Annual Report and Accounts 2025/26, its Annual Report on Form 20-F 2025/26, and the Notice of its 2026 Annual General Meeting.

Accepted by SEC EDGAR 06/03/2026 - 11:15 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

National Grid plc has published its Annual Report and Accounts 2025/26, its Annual Report on Form 20-F 2025/26, and the Notice of its 2026 Annual General Meeting. These documents are available on the company’s website and have been submitted to the UK Financial Conduct Authority’s National Storage Mechanism.

The 2026 AGM will be held as a hybrid meeting at 11:00am on 14 July 2026 at King's High School, Venues & Events Warwick, in Warwick, UK, with shareholders able to attend either electronically or in person. Printed copies of the AGM materials are being sent to shareholders who chose paper communications, and any shareholder can request paper copies of the Annual Report and Notice of AGM free of charge.

Key Figures

AGM date and time: 11:00am, 14 July 2026 AGM venue: King's High School, Warwick Form type: Form 20-F 2025/26 +2 more

5 metrics

AGM date and time 11:00am, 14 July 2026 Scheduled time for National Grid 2026 AGM

AGM venue King's High School, Warwick Location of 2026 AGM in Warwick, UK

Form type Form 20-F 2025/26 Annual report filed with US SEC

Listing rules references 6.4.1(R), 6.4.3(R), 6.3.5R(1A) UK Listing Rules and DTR compliance references

Form 6-K date 03 June 2026 Date of the Form 6-K and LSE announcement

Key Terms

Annual General Meeting, Articles of Association, National Storage Mechanism, Disclosure Guidance and Transparency Rules, +1 more

5 terms

Annual General Meeting financial

"Notice of 2026 Annual General Meeting ('AGM')"

Articles of Association financial

"proposed updated Articles of Association"

A company's articles of association are its written rulebook that sets how the business is run, how decisions are made, and what rights owners and directors have—covering voting, meetings, appointment and removal of directors, share classes and dividend policies. For investors, these rules matter because they determine how easily control can change, what protections minority owners have, and how corporate actions (like issuing new shares or changing leadership) are approved, much like a home’s bylaws shaping what residents can and cannot do.

National Storage Mechanism regulatory

"submitted to the Financial Conduct Authority via the National Storage Mechanism"

A national storage mechanism is an official, centralized electronic repository where companies and regulators file and keep required corporate documents such as prospectuses, financial statements and regulatory disclosures. For investors it is the authoritative public source to find and verify key papers — like using a government-run public archive or filing cabinet — so you can check the original documents for due diligence, compliance and to confirm claims made in news or marketing.

Disclosure Guidance and Transparency Rules regulatory

"Financial Conduct Authority's Disclosure Guidance and Transparency Rules ('DTRs')"

Disclosure guidance and transparency rules are the standards and regulations that require companies to share clear, timely information about their finances, risks, operations and material events. They matter to investors because consistent, honest reporting is like a car’s dashboard — it reveals the data you need to judge safety and performance and make informed buying or selling decisions. Strong disclosure reduces surprises and helps keep markets fair and efficient.

Form 20-F regulatory

"Annual Report on Form 20-F 2025/26 has today been filed"

Form 20-F is the standardized annual disclosure that non-U.S. companies must file with the U.S. securities regulator when their shares are traded in the U.S.; it contains audited financial statements, a plain-language description of the business, management discussion, governance details and key risk factors. It matters to investors because it provides a consistent, comparable company “report card” and rulebook, helping buyers assess financial health, governance and risks before investing.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

National Grid announced publication of its Annual Report and Accounts 2025/26, its Form 20-F 2025/26, and the Notice of the 2026 AGM. These documents are now available on its website and submitted to the UK Financial Conduct Authority.

When and where is National Grid’s 2026 AGM being held?

The 2026 AGM will be held at 11:00am on 14 July 2026 at King's High School, Venues & Events Warwick, Banbury Road, Warwick, CV34 6YE. It will operate as a hybrid meeting, allowing both in-person and electronic participation.

How can National Grid (NGG) shareholders access the 2025/26 Annual Report?

Shareholders can access the Annual Report and Accounts 2025/26 via National Grid’s website at www.nationalgrid.com. The Form 20-F 2025/26 is also available there and will be accessible on the SEC website at www.sec.gov.

Where has National Grid filed its Form 20-F 2025/26?

National Grid’s Annual Report on Form 20-F 2025/26 has been filed with the US Securities and Exchange Commission. It will shortly be available on the SEC’s website at www.sec.gov, in addition to the company’s own website.

How can investors review the AGM documents via the UK regulator?

Copies of the AGM documents and related materials have been submitted to the UK Financial Conduct Authority via the National Storage Mechanism. They will be available for inspection at the FCA’s website section located at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Can National Grid (NGG) shareholders request printed AGM and report documents?

Yes. Printed copies of the Notice of 2026 AGM and associated documents are being sent to shareholders who chose paper communications. Any shareholder may request printed copies of the Annual Report and Notice of AGM free of charge via the company’s designated email.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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 03 June 2026 — Annual Financial Report and Notice of AGM

Exhibit 99.1

3 June 2026

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

Publication of Annual Report and Accounts and

Notice of 2026 Annual General Meeting ('AGM')

National Grid announces that the following documents have today been published and are available on its website, www.nationalgrid.com:

●  Annual Report and Accounts 2025/26

● Annual Report on Form 20-F 2025/26

●  Notice of 2026 AGM

●  A copy of the proposed updated Articles of Association

●  A copy of the existing Articles of Association marked to show the changes being proposed in Resolution 22 of the Notice of 2026 AGM

In accordance with 6.4.1(R) and 6.4.3(R) of the UK Listing Rules, a copy of each of the documents listed above and a copy of the proxy form for the 2026 AGM has been submitted to the Financial Conduct Authority via the National Storage Mechanism and will shortly be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

In addition, in accordance with Section 203.01 of the New York Stock Exchange Listed Company Manual, the Annual Report on Form 20-F 2025/26 has today been filed with the US Securities and Exchange Commission and will shortly be available at www.sec.gov.

The 2026 AGM of National Grid plc will be held at 11.00am on Tuesday, 14 July 2026 at King's High School, Venues & Events Warwick, Banbury Road, Warwick, CV34 6YE. The AGM will be held as a hybrid meeting, providing shareholders with the opportunity to participate via an electronic meeting platform or in person. For more information, please refer to the Notice of 2026 AGM which is available on the Company's website at  https://www.nationalgrid.com/investors/shareholder-information/agm.

In compliance 6.3.5R(1A) of the Financial Conduct Authority's Disclosure Guidance and Transparency Rules ('DTRs'), information required to be communicated with the media in unedited full text is included in the Annual Report and Accounts 2025/26.

Printed copies of the Notice of 2026 AGM and associated documents will be dispatched to those shareholders who have elected to receive paper communications. Shareholders may request a printed copy of the Annual Report and Notice of AGM free of charge. Requests should be directed to box.Group.CoSec@nationalgrid.com.

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