NGG
National Grid plc trades as NGG and has a market capitalization of $81.76 B, making it the #196 largest US-listed company by market value. This page tracks National Grid plc through 1,000 SEC filings, with financial statements and metrics updated as new reports are filed.
| Filing | Type | Filed |
|---|---|---|
| 6-K | - | 2026-05-14 |
| 6-K | - | 2026-04-30 |
| 6-K | - | 2026-04-13 |
| 6-K | - | 2026-03-31 |
| 6-K | - | 2026-03-02 |
| 6-K | - | 2026-02-27 |
| Employee stock plan | S-8 | 2026-02-27 |
| 6-K | - | 2026-01-30 |
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National Grid Electricity Transmission is currently investigating suitable sites close to Navenby in Lincolnshire for a proposed new substation to connect to ...
The largest companies sharing National Grid plc's SEC industry classification (natural gas transmission).
National Grid plc (NGG) has a market capitalization of $81.76 B as of 2026-05-29, ranking #196 among US-listed companies.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.