| 13:00:00 | 13:00:00 | 3 Aug 2026 | | Total Voting Rights |
| 07:00:09 | 07:00:09 | 3 Aug 2026 | | National Grid simplifies its operating model |
| 27/07/26 | 17:21:06 | 27 Jul 2026 | | Director/PDMR Shareholding |
| 23/07/26 | 11:30:01 | 23 Jul 2026 | | Total Voting Rights |
| 22/07/26 | 10:07:04 | 22 Jul 2026 | | National Grid plc Scrip Dividend |
| 14/07/26 | 16:55:59 | 14 Jul 2026 | | Result of AGM |
| 08/07/26 | 16:15:00 | 8 Jul 2026 | | Director/PDMR Shareholding |
| 03/07/26 | 09:00:00 | 3 Jul 2026 | | Director/PDMR Shareholding |
| 01/07/26 | 12:00:00 | 1 Jul 2026 | | NGV to invest $1.75bn in Joulent |
| 01/07/26 | 10:12:54 | 1 Jul 2026 | | Total Voting Rights |
| 19/06/26 | 09:11:59 | 19 Jun 2026 | | Director/PDMR Shareholding |
| 16/06/26 | 17:50:08 | 16 Jun 2026 | | Director/PDMR Shareholding |
| 10/06/26 | 17:00:01 | 10 Jun 2026 | | Director/PDMR Shareholding |
| 10/06/26 | 11:30:00 | 10 Jun 2026 | | Director/PDMR Shareholding |
| 04/06/26 | 14:30:01 | 4 Jun 2026 | | Scrip Dividend for 2025/26 Final Dividend |
| 03/06/26 | 13:49:54 | 3 Jun 2026 | | Annual Financial Report and Notice of AGM |
| 03/06/26 | 12:00:00 | 3 Jun 2026 | | Holding(s) in Company |
| 02/06/26 | 14:00:01 | 2 Jun 2026 | | Board change |
| 01/06/26 | 15:00:00 | 1 Jun 2026 | | Total Voting Rights |
| 26/05/26 | 13:00:00 | 26 May 2026 | | Holding(s) in Company |
| 22/05/26 | 12:30:00 | 22 May 2026 | | Director/PDMR Shareholding |
| 20/05/26 | 15:30:01 | 20 May 2026 | | Director/PDMR Shareholding |
| 19/05/26 | 15:30:01 | 19 May 2026 | | Director/PDMR Shareholding |
| 14/05/26 | 07:00:05 | 14 May 2026 | | FY2026 Full Year Results Statement |
| 11/05/26 | 10:00:00 | 11 May 2026 | | Director/PDMR Shareholding |
| 01/05/26 | 12:00:01 | 1 May 2026 | | Total Voting Rights |
| 28/04/26 | 10:00:00 | 28 Apr 2026 | | Director/PDMR Shareholding |
| 13/04/26 | 07:00:06 | 13 Apr 2026 | | Pre-Close Update Ahead of 25/26 Full Year Results |
| 08/04/26 | 15:00:00 | 8 Apr 2026 | | Director/PDMR Shareholding |
| 01/04/26 | 14:30:00 | 1 Apr 2026 | | Total Voting Rights |
| 10/03/26 | 13:00:00 | 10 Mar 2026 | | Director/PDMR Shareholding |
| 02/03/26 | 12:30:00 | 2 Mar 2026 | | Total Voting Rights |
| 02/03/26 | 07:00:15 | 2 Mar 2026 | | Upgraded 5-year framework and RIIO-T3 acceptance |
| 10/02/26 | 16:00:00 | 10 Feb 2026 | | Director/PDMR Shareholding |
| 04/02/26 | 15:30:00 | 4 Feb 2026 | | Director/PDMR Shareholding |
| 02/02/26 | 13:30:00 | 2 Feb 2026 | | Total Voting Rights |
| 23/01/26 | 13:00:00 | 23 Jan 2026 | | Publication of a Supplementary Prospectus |
| 19/01/26 | 13:30:00 | 19 Jan 2026 | | Director/PDMR Shareholding |
| 16/01/26 | 11:45:00 | 16 Jan 2026 | | Director/PDMR Shareholding |
| 13/01/26 | 16:30:00 | 13 Jan 2026 | | Voting Rights and Capital Update |
| 12/01/26 | 09:45:00 | 12 Jan 2026 | | National Grid plc Scrip Dividend |
| 08/01/26 | 13:30:00 | 8 Jan 2026 | | Director/PDMR Shareholding |
| 02/01/26 | 12:30:00 | 2 Jan 2026 | | Total Voting Rights |
| 11/12/25 | 15:00:01 | 11 Dec 2025 | | Outcome of audit tender process |
| 09/12/25 | 17:10:00 | 9 Dec 2025 | | Director/PDMR Shareholding |
| 04/12/25 | 07:02:28 | 4 Dec 2025 | | Ofgem's RIIO-T3 Final Determination published |
| 03/12/25 | 16:50:01 | 3 Dec 2025 | | Director/PDMR Shareholding |
| 01/12/25 | 16:50:00 | 1 Dec 2025 | | Total Voting Rights |
| 28/11/25 | 11:55:36 | 28 Nov 2025 | | Completion of sale of Grain LNG |
| 27/11/25 | 16:30:01 | 27 Nov 2025 | | Scrip Dividend for 2025/26 Interim Dividend |
