National Grid plc Files Form 6-K

TL;DR

National Grid (NGG) filed a routine 6-K. No new info, just compliance.

AI Summary

National Grid plc filed a Form 6-K on November 17, 2025. This report is for a foreign private issuer and does not contain specific financial details or operational updates beyond its filing status. The company is incorporated in England and Wales and its principal executive office is located at 1-3 Strand, London, WC2N 5EH, United Kingdom.

Why It Matters

This filing indicates that National Grid plc is meeting its reporting obligations as a foreign private issuer with the SEC, which is standard procedure for companies with securities traded in the US.

Risk Assessment

Risk Level: low — This filing is a standard procedural report for a foreign private issuer and does not contain material non-public information that would typically impact risk.

Key Players & Entities

• NATIONAL GRID plc (company) — Filer
• 1-3 Strand, London, WC2N 5EH, United Kingdom (location) — Principal executive office
• England and Wales (location) — Jurisdiction of Incorporation

FAQ

Filing Documents

• a8688h.htm (6-K) — 299KB
• 0001654954-25-013139.txt ( ) — 300KB

From the Filing

(S) IN COMPANY a8688h       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: 17 November 2025   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 17 November 2025   — Holding(s) in Company     Exhibit 99.1     17 November 2025   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.     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             Country of registered office (if applicable)       5. Date on which the threshold was crossed or reached 14-Nov-2025     6. Date on which Issuer notified 17-Nov-2025     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   4.870000   3.250000   8.120000   403585440   Position of previous notification (if applicable)   7.070000   0.920000   7.990000       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     241775449     4.870000   Sub Total 8.A 241775449   4.870000%     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      

View Full Filing

View this 6-K filing on SEC EDGAR