Welcome to our dedicated page for National Grid SEC filings (Ticker: NGG), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
National Grid plc (NYSE: NGG) is a foreign private issuer incorporated in England and Wales that files annual reports on Form 20‑F and periodic reports on Form 6‑K with the US Securities and Exchange Commission. This SEC filings page aggregates those documents so investors can review National Grid’s regulatory disclosures, capital structure updates, and governance information in one place.
Recent Form 6‑K submissions include announcements to the London Stock Exchange that are furnished to the SEC, such as half‑year results, details of the scrip dividend scheme for interim dividends, and applications for new ordinary shares to be admitted to trading in connection with scrip elections. Filings also report total voting rights and treasury shares, notifications of major shareholdings, and transactions by persons discharging managerial responsibilities under the Market Abuse Regulation.
Other 6‑K filings provide information on portfolio changes and regulatory frameworks. Examples include the completion of the sale of the Grain LNG business, updates on Ofgem’s RIIO‑T3 Final Determination for National Grid’s UK electricity transmission business, and the outcome of a competitive audit tender process for the company’s external auditor. Together, these documents give insight into National Grid’s capital investment plans, regulatory environment, and governance arrangements.
On Stock Titan, National Grid filings are updated in line with new submissions to EDGAR. AI-powered summaries help explain the key points of lengthy disclosures, so readers can quickly understand topics such as dividend mechanics, voting rights changes, insider share dealings, and major regulatory decisions. Users can also review Form 4‑style information on ADR-related transactions reported within 6‑Ks and trace how National Grid’s capital structure and regulatory context evolve over time.
National Grid plc reports its share capital and recent insider dealings. As of 31 December 2025, the company had 5,191,884,002 ordinary shares, including 230,310,720 held in treasury, leaving 4,961,573,282 shares with voting rights for disclosure calculations.
The filing also lists routine transactions by senior managers and the chair, mainly small monthly purchases and dividend-related share acquisitions in share plans on the London and New York exchanges, plus a sale of 21,800 ordinary shares by Chief People Officer Will Serle.
National Grid plc has filed a Form 6-K to notify investors that a new supplementary prospectus has been approved by the UK Financial Conduct Authority for its and National Grid Electricity Transmission plc's Euro Medium Term Note Programme.
The Supplementary Prospectus, dated 23 January 2026, updates and supplements the existing prospectus dated 19 August 2025 for the companies' Euro 20,000,000,000 Euro Medium Term Note Programme. It is available via a published URL and has also been submitted to the UK National Storage Mechanism for public inspection.
The notice reminds readers that the underlying prospectus information may be targeted only at residents of specific countries and that investors need to confirm they are part of the intended audience before relying on that information.
National Grid plc is issuing new shares under its Scrip Dividend Scheme for the 2025/26 interim dividend. The company has applied to admit 7,084,688 ordinary shares to the FCA Official List and to trading on the London Stock Exchange, with dealings expected to start on 13 January 2026. These shares will rank equally with existing ordinary shares.
Under the scheme, 6,613,638 ordinary shares are being issued at 1,130.40 pence per share. For US holders of American Depositary Receipts, 94,210 ADRs, representing 471,050 ordinary shares including fractional entitlements, are being issued at US$74.2334 per ADR. The scrip relates to the interim dividend payable on 13 January 2026.
National Grid plc is issuing new shares under its Scrip Dividend Scheme for the 2025/26 interim dividend. The company has applied to the UK Financial Conduct Authority to admit ordinary shares to the Official List and to the London Stock Exchange to admit 7,084,688 ordinary shares to trading. Dealings in these shares are expected to start on 13 January 2026, the date the interim dividend is payable, and the new shares will rank equally with existing ordinary shares.
Under the scheme, 6,613,638 ordinary shares will be issued at 1,130.40 pence per share. For US holders of American Depositary Receipts, 94,210 ADRs, representing 471,050 ordinary shares including fractional entitlements, will be issued at US$74.2334 per ADR. The filing also points investors to the current Scrip Dividend Scheme terms on the company’s website and via Equiniti.
National Grid plc reports its updated share capital and recent management share transactions. As of 30 November 2025, the company had 5,191,884,002 ordinary shares in issue, of which 230,339,116 were held in treasury, leaving 4,961,544,886 shares with voting rights for disclosure calculations under FCA rules.
The filing also details moves by senior executives. Chief Information and Digital Officer Talvis Love received 14,147 American Depository Shares at nil cost on 1 December 2025 from the vesting of a Retention Award Plan grant, with 6,865 ADS automatically sold at $76.31 to cover tax. On 8 December 2025, Chief Financial Officer Andy Agg and Chief People Officer Will Serle each bought 13 ordinary shares at GBP 11.3943 under the Share Incentive Plan.
National Grid plc has completed a formal competitive audit tender and its Board has approved the proposed re-appointment of Deloitte LLP as external auditor from the financial year ending 31 March 2028, subject to shareholder approval at the 2027 Annual General Meeting.
Deloitte will continue as National Grid’s external auditor for the financial years ending 31 March 2026 and, subject to shareholder approval at the 2026 Annual General Meeting, 31 March 2027. The company notes that UK rules require large companies to tender their statutory audit every 10 years and rotate auditors every 20 years; Deloitte has been statutory auditor since the year ending 31 March 2018. Further information on the tender process will be provided in National Grid’s 2026 Annual Report and Accounts.
National Grid plc reports that UK regulator Ofgem has published its Final Determination for the RIIO-T3 framework governing National Grid Electricity Transmission from April 2026 to March 2031. The package includes a real allowed cost of equity of 6.12% at 60% gearing, which will help shape future returns from the regulated transmission business.
National Grid welcomes Ofgem’s recognition of the need for significant investment to nearly double electricity transfer capacity while maintaining high reliability, but will now review the full determination to judge whether it provides an overall framework that is both investable and workable. The company will focus on the incentive framework and totex mechanisms, assessing if they allow high-performing networks to earn a globally competitive return and recover efficient investment costs.
Ofgem is expected to publish proposed licence modifications for consultation, ahead of a licence decision in February. Relevant parties will then have 20 working days to assess the licence changes, and National Grid anticipates announcing its formal response in early March 2026.
National Grid plc has completed the sale of its Grain LNG business to a consortium made up of Centrica plc and Energy Capital Partners, which is part of Bridgepoint Group plc. This transaction removes Grain LNG from National Grid’s portfolio and transfers ownership to a mix of a multinational energy company and an energy transition-focused infrastructure investor.
National Grid describes itself as one of the largest publicly listed energy network companies, operating critical electricity and gas networks in the UK and US. The company emphasises its role in providing secure, affordable and cleaner energy while supporting economic growth, and positions this move within a broader strategy of focusing on reliable and resilient energy networks for the future.
National Grid plc filed an update covering its share capital and recent insider share purchases. As of 31 October 2025, the company’s registered capital comprised 5,191,884,002 ordinary shares, including 230,345,795 shares held in treasury, leaving 4,961,538,207 shares with voting rights. This figure is the reference shareholders use to determine when they must notify changes in their holdings under UK disclosure rules.
The filing also reports routine purchases of ordinary shares by senior management under National Grid’s Share Incentive Plan. On 7 November 2025, Chief Financial Officer Andy Agg, Chief Executive John Pettigrew and Chief People Officer Will Serle each acquired 13 partnership shares at a price of GBP 11.588 per share. In addition, on 17 November 2025 Non-Executive Director Iain Mackay bought 4,500 ordinary shares at GBP 11.735285 per share on the London Stock Exchange.
National Grid plc has set the scrip dividend reference prices for its 2025/26 interim dividend and confirmed the payment timetable. Ordinary shareholders can take shares instead of cash at a scrip reference price of 1,130.40 pence per share, based on the average closing mid-market price over the five dealing days starting on the ex-dividend date. ADR holders have a scrip ADR reference price of
The 2025/26 interim dividend has been declared at 16.35 pence per ordinary share and
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