NGG · NYSE, OTC, OTC, OTC, OTC, OTC · CIK 0001004315

NATIONAL GRID PLC

NATIONAL GRID PLC’s most recent SEC filing in our snapshot is a Form 6-K filed on Oct 5, 2026. In fiscal 2025 (year ended Mar 31, 2025) it reported revenue of GBP 18.4B and net income of GBP 2.9B, according to its XBRL data on EDGAR. Its EDGAR record lists 0 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
GBP 18.4B
Net income, FY2025
GBP 2.9B
Form 4 filings on record, past 12 months
0

Company overview

Legal name (as filed)
NATIONAL GRID PLC
Tickers
NGG, NGGTF, NEWEN, NMKBP, NMKCP, NMPWP
SEC Central Index Key (CIK)
0001004315
Industry (SIC)
Natural Gas Transmission (code 4922)
Business address
LONDON, United Kingdom
State or country of incorporation
—
Fiscal year ends
March 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#206 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from NATIONAL GRID PLC’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in GBP; the fiscal year is named for the calendar year in which it ends.

Revenue
GBP 13.7BFY2021GBP 18.4BFY2022GBP 21.7BFY2023GBP 19.9BFY2024GBP 18.4BFY2025
Net income
GBP 1.6BFY2021GBP 2.4BFY2022GBP 7.8BFY2023GBP 2.3BFY2024GBP 2.9BFY2025
NGG annual results
ItemFY2021
ended Mar 31, 2021		FY2022
ended Mar 31, 2022		FY2023
ended Mar 31, 2023		FY2024
ended Mar 31, 2024		FY2025
ended Mar 31, 2025
RevenueGBP 13.7BGBP 18.4BGBP 21.7BGBP 19.9BGBP 18.4B
Net incomeGBP 1.6BGBP 2.4BGBP 7.8BGBP 2.3BGBP 2.9B
Diluted EPSGBP 0.46GBP 0.65GBP 1.96GBP 0.57GBP 0.61
Total assetsGBP 67.2BGBP 94.9BGBP 92.7BGBP 98.3BGBP 106.7B
Cash and equivalentsGBP 157.0MGBP 204.0MGBP 163.0MGBP 559.0MGBP 1.2B

XBRL tags used: revenue = Revenue; netIncome = ProfitLoss; assets = Assets; eps = DilutedEarningsLossPerShare; cash = CashAndCashEquivalents. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

NGG latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Jun 3, 202620-FAnnual report of a foreign private issuer· period Mar 31, 2026Document · Index
Oct 5, 20266-KPRE-CLOSE UPDATE AHEAD OF HY2026/27 RESULTS· period Oct 5, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about NATIONAL GRID PLC, by form type:

6-K ×32424B5 ×211-K ×18-A12B ×1CERT ×1FWP ×120-F ×1S-8 ×1
NGG recent filings
FiledFormWhat it isOriginal
Oct 5, 20266-KPRE-CLOSE UPDATE AHEAD OF HY2026/27 RESULTS· period Oct 5, 2026Document · Index
Sep 30, 20266-KBATCH FILING· period Sep 30, 2026Document · Index
Aug 28, 20266-KBATCH FILING· period Aug 28, 2026Document · Index
Aug 3, 20266-KNATIONAL GRID SIMPLIFIES ITS OPERATING MODEL· period Aug 3, 2026Document · Index
Jul 31, 20266-KBATCH FILING· period Jul 31, 2026Document · Index
Jul 23, 20266-KTOTAL VOTING RIGHTS· period Jul 23, 2026Document · Index
Jul 22, 20266-KNATIONAL GRID PLC SCRIP DIVIDEND· period Jul 22, 2026Document · Index
Jul 14, 20266-KRESULT OF AGM· period Jul 14, 2026Document · Index
Jul 1, 20266-KNGV TO INVEST $1.75BN IN JOULENT· period Jul 1, 2026Document · Index
Jun 30, 20266-KBATCH FILING· period Jun 30, 2026Document · Index
Jun 16, 202611-KAnnual report of employee stock plans· period Dec 31, 2025Document · Index
Jun 12, 20268-A12B8-A12BDocument · Index
Jun 12, 2026CERTNYSE CERTIFICATIONDocument · Index
Jun 9, 20266-KReport of a foreign private issuer· period Jun 9, 2026Document · Index
Jun 5, 2026424B5424B5Document · Index
Jun 4, 20266-KSCRIP DIVIDEND FOR 2025/26 FINAL DIVIDEND· period Jun 4, 2026Document · Index
Jun 4, 2026FWPFWPDocument · Index
Jun 4, 2026424B5424B5Document · Index
Jun 3, 20266-KBOARD CHANGE· period Jun 3, 2026Document · Index
Jun 3, 20266-KANNUAL FINANCIAL REPORT AND NOTICE OF AGM· period Jun 3, 2026Document · Index
Jun 3, 202620-FAnnual report of a foreign private issuer· period Mar 31, 2026Document · Index
May 29, 20266-KBATCH FILING· period May 29, 2026Document · Index
May 14, 20266-KFY2026 FULL YEAR RESULTS STATEMENT· period May 14, 2026Document · Index
Apr 30, 20266-KBATCH FILING· period Apr 30, 2026Document · Index
Apr 13, 20266-KPRE-CLOSE UPDATE AHEAD OF 25/26 FULL YEAR RESULTS· period Apr 13, 2026Document · Index
Mar 31, 20266-KBATCH FILING· period Mar 31, 2026Document · Index
Mar 2, 20266-KUPGRADED 5-YEAR FRAMEWORK AND RIIO-T3 ACCEPTANCE· period Mar 2, 2026Document · Index
Feb 27, 20266-KBATCH FILING· period Feb 27, 2026Document · Index
Feb 27, 2026S-8Registration of employee benefit plan securitiesDocument · Index
Jan 30, 20266-KBATCH FILING· period Jan 30, 2026Document · Index
Jan 23, 20266-KPUBLICATION OF A SUPPLEMENTARY PROSPECTUS· period Jan 23, 2026Document · Index
Jan 14, 20266-KVOTING RIGHTS AND CAPITAL UPDATE· period Jan 14, 2026Document · Index
Jan 12, 20266-KNATIONAL GRID PLC SCRIP DIVIDEND· period Jan 12, 2026Document · Index
Jan 12, 20266-KNATIONAL GRID PLC SCRIP DIVIDEND· period Jan 12, 2026Document · Index
Dec 31, 20256-KReport of a foreign private issuer· period Dec 31, 2025Document · Index
Dec 11, 20256-KOUTCOME OF AUDIT TENDER PROCESS· period Dec 11, 2025Document · Index
Dec 4, 20256-KOFGEM'S RIIO-T3 FINAL DETERMINATION PUBLISHED· period Dec 4, 2025Document · Index
Nov 28, 20256-KCOMPLETION OF SALE OF GRAIN LNG· period Nov 28, 2025Document · Index
Nov 28, 20256-KBATCH FILING· period Nov 28, 2025Document · Index
Nov 28, 20256-KSCRIP DIVIDEND FOR 2025/26 INTERIM DIVIDEND· period Nov 28, 2025Document · Index

Insider filing activity

0 Form 4 filings appear in NATIONAL GRID PLC’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

Other companies in Natural Gas Transmission

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001004315 and XBRL company facts. NATIONAL GRID PLC on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.