NATIONAL GRID PLC

For the period ended Mar 31, 2026. Filed Jun 3, 2026.

About this filing

The yearly report of a company based outside the US. It covers much of what a 10-K does, and may follow accounting rules other than US ones.

FY2026 · Filed Jun 3, 2026

Use the contents to explore the available documents and sections.

NGG$83.15-3.2%Stored close · as of Nov 6, 2026

Contents

The Board recognises its responsibilities to the Group’s stakeholders and to wider society, and the

importance of effective engagement in delivering the Group’s long‑term strategy. The Directors have

regard to the interests and perspectives of stakeholders when making decisions and are responsible for

setting and overseeing the Group’s culture and values, which underpin those decisions. In balancing the

often competing priorities of stakeholders, the Board seeks to support the long‑term, sustainable success

of the Group and maintain high standards of conduct consistent with its purpose and values.

Throughout the year, the Directors have acted in the way they considered, in good faith, was most likely

to promote the long-term success of the Company for the benefit of its members as a whole, and have

had regard to the matters set out in section 172 of the Companies Act 2006. Further information on how

the Board has had regard to each of these matters is set out below.

Section 172 factor · Disclosure · Page
The likely consequence of any decision in the long term	Our strategic priorities		16
Our business model		12
The interests of the Company’s employees	Our stakeholders		23
Responsible Business review		38
Board workforce engagement		95
The need to foster the Company’s business relationships with suppliers, customers and others	Our stakeholders		23
Responsible Business review		38
Board stakeholder engagement		95
The impact of the Company’s operations on the community and the environment	Our stakeholders		23
Responsible Business review		38
TCFD		53
Maintaining a reputation for high standards of business conduct	Responsible Business review		38
Corporate Governance overview		89
The need to act fairly as between members of the Company	Our stakeholders		23
Responsible Business review		38
Board stakeholder engagement		95

Additional information on the Board’s engagement with key stakeholders can be found on page 95.

Further reading	Environment	Social matters and employees	Anti-corruption and bribery	Humanrights
Our policies and due diligence	40 — 44	45 — 46 and 49 — 52	50	50
Outcomes	40 — 44	45 — 46 and 49 — 52	50	50

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.