Companies: 10,795·Total market cap: $144.5T
National Grid plc

National Grid plc

NGGNYSEUtilities● Active
$80.34
$-1.53(-1.86%)
Market Cap$80.0B
P/E Ratio—
52W High$94.64
52W Low$67.52
SEC Filings
Foreign Private Issuer · Files 20-F / 6-K

National Grid plc (NGG) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001004315 · NGG · NYSE · as of Jun 8, 2026

Filing snapshot

1,001+
Total Filings
424B5
Latest Form
2026-06-05
Most Recent
2005
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0001004315 · Updated hourly · Not investment advice

Latest Annual Report

20-F · Annual Report (Foreign Issuer)FY
Filed Date
2026-06-03
Fiscal Year End
Jun 3, 2026
Accession No.
0001004315-26-000006
Primary Document
nggtf-20260331.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0001004315 · Accession 0001004315-26-000006

Latest Key Filings

6-KQuarterly Report
SCRIP DIVIDEND FOR 2025/26 FINAL DIVIDEND
2026-06-04
View 6-K on SEC
8-KCurrent Report

No recent filings

Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
424B5424B5
424B5
2026-06-05
View
FWPFWP
FWP
2026-06-04
View
6-KCurrent Report (Foreign Issuer)
SCRIP DIVIDEND FOR 2025/26 FINAL DIVIDEND
2026-06-04
View
424B5424B5
424B5
2026-06-04
View
6-KCurrent Report (Foreign Issuer)
BOARD CHANGE
2026-06-03
View
6-KCurrent Report (Foreign Issuer)
ANNUAL FINANCIAL REPORT AND NOTICE OF AGM
2026-06-03
View
20-FAnnual Report (Foreign Issuer)
20-F
2026-06-03
View
6-KCurrent Report (Foreign Issuer)
BATCH FILING
2026-05-29
View
6-KCurrent Report (Foreign Issuer)
FY2026 FULL YEAR RESULTS STATEMENT
2026-05-14
View
6-KCurrent Report (Foreign Issuer)
BATCH FILING
2026-04-30
View
6-KCurrent Report (Foreign Issuer)
PRE-CLOSE UPDATE AHEAD OF 25/26 FULL YEAR RESULTS
2026-04-13
View
6-KCurrent Report (Foreign Issuer)
BATCH FILING
2026-03-31
View
6-KCurrent Report (Foreign Issuer)
UPGRADED 5-YEAR FRAMEWORK AND RIIO-T3 ACCEPTANCE
2026-03-02
View
S-8Employee Stock Plan Registration
S-8
2026-02-27
View
6-KCurrent Report (Foreign Issuer)
BATCH FILING
2026-02-27
View
Showing 1–15 of 1000 filingsForm 4 / 144 hidden· 1001 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001004315  |  Exchange: NYSE · Utilities

National Grid plc (NYSE: NGG) has submitted 1,001+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2005. As a Utilities sector company with CIK 0001004315, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is National Grid plc's most comprehensive regulatory disclosure. The most recent National Grid plc 10-K was filed on 2026-06-03 for fiscal year ending 2026. Historical NGG 10-K annual reports are available from 2002 through 2026.

Investors researching National Grid plc SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
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→ NGG Financials→ NGG Earnings→ NGG Insider Trades

Frequently Asked Questions

NGG SEC Filings · 8 questions

National Grid plc (NGG) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,001+ filings and access original documents at no cost. National Grid plc's CIK is 0001004315.

NGG SEC filingsNational Grid plc SEC documentsfind NGG 10-K