| 11/04/19 | | 08:00:14 | 11 Apr 2019 | | | Update to Technical Guidance for 2018/19 | National Grid PLC | RNS |
| 08/04/19 | | 10:06:58 | 8 Apr 2019 | | | Board Change | National Grid PLC | RNS |
| 05/04/19 | | 11:27:32 | 5 Apr 2019 | | | Director's Other Appointment | National Grid PLC | RNS |
| 02/04/19 | | 18:05:07 | 2 Apr 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/04/19 | | 14:48:25 | 1 Apr 2019 | | | Total Voting Rights | National Grid PLC | RNS |
| 15/03/19 | | 07:00:05 | 15 Mar 2019 | | | NG submits response to RIIO T2 consultation | National Grid PLC | RNS |
| 08/03/19 | | 13:05:17 | 8 Mar 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 07/03/19 | | 07:00:10 | 7 Mar 2019 | | | National Grid expands presence in US renewable's | National Grid PLC | RNS |
| 04/03/19 | | 09:53:42 | 4 Mar 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/03/19 | | 15:58:59 | 1 Mar 2019 | | | Total Voting Rights | National Grid PLC | RNS |
| 25/02/19 | | 16:27:38 | 25 Feb 2019 | | | Holding(s) in Company | National Grid PLC | RNS |
| 14/02/19 | | 09:33:27 | 14 Feb 2019 | | | Director's Other Appointment | National Grid PLC | RNS |
| 08/02/19 | | 10:33:59 | 8 Feb 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 05/02/19 | | 15:55:45 | 5 Feb 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/02/19 | | 15:11:35 | 1 Feb 2019 | | | Total Voting Rights | National Grid PLC | RNS |
| 31/01/19 | | 07:00:05 | 31 Jan 2019 | | | NG's NEMO Link commences operation | National Grid PLC | RNS |
| 23/01/19 | | 17:38:54 | 23 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 16/01/19 | | 16:14:06 | 16 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 14/01/19 | | 16:31:57 | 14 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 11/01/19 | | 15:57:13 | 11 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 10/01/19 | | 14:09:32 | 10 Jan 2019 | | | Publication of Supplementary Prospectus | National Grid PLC | RNS |
| 09/01/19 | | 16:00:03 | 9 Jan 2019 | | | Total Voting Rights | National Grid PLC | RNS |
| 08/01/19 | | 14:38:52 | 8 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/01/19 | | 09:00:01 | 8 Jan 2019 | | | Scrip Dividend | National Grid PLC | RNS |
| 08/01/19 | | 07:00:04 | 8 Jan 2019 | | | NG reaches agreement with Massachusetts Gas unions | National Grid PLC | RNS |
| 04/01/19 | | 14:20:48 | 4 Jan 2019 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/01/19 | | 15:11:27 | 2 Jan 2019 | | | Total Voting Rights | National Grid PLC | RNS |
| 20/12/18 | | 09:00:03 | 20 Dec 2018 | | | Board Change | National Grid PLC | RNS |
| 18/12/18 | | 07:07:27 | 18 Dec 2018 | | | Ofgem's sector specific consultation | National Grid PLC | RNS |
| 12/12/18 | | 14:31:50 | 12 Dec 2018 | | | Appointment of new Chief Financial Officer | National Grid PLC | RNS |
| 10/12/18 | | 16:38:31 | 10 Dec 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 05/12/18 | | 11:58:06 | 5 Dec 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/12/18 | | 11:29:09 | 3 Dec 2018 | | | Total Voting Rights | National Grid PLC | RNS |
| 29/11/18 | | 13:16:25 | 29 Nov 2018 | | | Scrip Dividend for 2018/19 Interim Dividend | National Grid PLC | RNS |
| 27/11/18 | | 17:07:52 | 27 Nov 2018 | | | Holding(s) in Company | National Grid PLC | RNS |
| 23/11/18 | | 16:32:39 | 23 Nov 2018 | | | Publication of Supplementary Prospectus | National Grid PLC | RNS |
| 19/11/18 | | 16:20:26 | 19 Nov 2018 | | | Holding(s) in Company | National Grid PLC | RNS |
| 16/11/18 | | 07:00:04 | 16 Nov 2018 | | | New regulatory filings in Massachusetts & New York | National Grid PLC | RNS |
| 08/11/18 | | 15:59:00 | 8 Nov 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/11/18 | | 07:00:12 | 8 Nov 2018 | | | Report for the period ended 30 September 2018 | National Grid PLC | RNS |
| 06/11/18 | | 13:27:18 | 6 Nov 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/11/18 | | 12:11:30 | 1 Nov 2018 | | | Total Voting Rights | National Grid PLC | RNS |
| 04/10/18 | | 17:20:36 | 4 Oct 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/10/18 | | 11:12:10 | 3 Oct 2018 | | | Publication of Annual Report - Group Company | National Grid PLC | RNS |
| 02/10/18 | | 08:00:11 | 2 Oct 2018 | | | National Grid: MA Gas 2018 Rate Case Order | National Grid PLC | RNS |
| 01/10/18 | | 13:30:10 | 1 Oct 2018 | | | Total Voting Rights | National Grid PLC | RNS |
| 28/09/18 | | 11:19:56 | 28 Sept 2018 | | | Publication of Annual Report - Group Companies | National Grid PLC | RNS |
| 21/09/18 | | 09:30:04 | 21 Sept 2018 | | | National Grid's UK investor teach-in events | National Grid PLC | RNS |
| 17/09/18 | | 14:46:38 | 17 Sept 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 06/09/18 | | 13:27:28 | 6 Sept 2018 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
