| 08/12/20 | | 07:10:51 | 8 Dec 2020 | | | Ofgem's RIIO-2 Final Determination published | National Grid PLC | RNS |
| 03/12/20 | | 13:00:00 | 3 Dec 2020 | | | Scrip Dividend for 2020/21 Interim Dividend | National Grid PLC | RNS |
| 02/12/20 | | 09:00:08 | 2 Dec 2020 | | | Holding(s) in Company | National Grid PLC | RNS |
| 01/12/20 | | 14:46:04 | 1 Dec 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 30/11/20 | | 16:40:46 | 30 Nov 2020 | | | Second Price Monitoring Extn | National Grid PLC | RNS |
| 30/11/20 | | 16:36:26 | 30 Nov 2020 | | | Price Monitoring Extension | National Grid PLC | RNS |
| 23/11/20 | | 16:29:58 | 23 Nov 2020 | | | Holding(s) in Company | National Grid PLC | RNS |
| 16/11/20 | | 07:00:07 | 16 Nov 2020 | | | Rate filing submitted for Massachusetts Gas | National Grid PLC | RNS |
| 12/11/20 | | 17:29:14 | 12 Nov 2020 | | | Publication of Suppl.Prospcts | National Grid PLC | RNS |
| 12/11/20 | | 07:00:05 | 12 Nov 2020 | | | Half Year results for period ended 30 Sept 2020 | National Grid PLC | RNS |
| 10/11/20 | | 11:30:01 | 10 Nov 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/11/20 | | 11:00:08 | 3 Nov 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/11/20 | | 15:45:20 | 2 Nov 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 08/10/20 | | 15:30:02 | 8 Oct 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 05/10/20 | | 09:34:41 | 5 Oct 2020 | | | ESG virtual seminar for investors | National Grid PLC | RNS |
| 02/10/20 | | 13:00:02 | 2 Oct 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/10/20 | | 11:04:21 | 1 Oct 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 18/09/20 | | 08:00:06 | 18 Sept 2020 | | | Publication of Final Terms | National Grid PLC | RNS |
| 10/09/20 | | 07:00:07 | 10 Sept 2020 | | | Chair Succession | National Grid PLC | RNS |
| 09/09/20 | | 16:59:16 | 9 Sept 2020 | | | Publication of Suppl.Prospcts | National Grid PLC | RNS |
| 08/09/20 | | 11:01:54 | 8 Sept 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 07/09/20 | | 07:00:08 | 7 Sept 2020 | | | Ofgem's Draft Determination: Consultation Response | National Grid PLC | RNS |
| 02/09/20 | | 12:15:49 | 2 Sept 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/09/20 | | 16:52:33 | 1 Sept 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 25/08/20 | | 10:23:06 | 25 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 21/08/20 | | 14:32:40 | 21 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 19/08/20 | | 16:00:04 | 19 Aug 2020 | | | Total Voting Rights and Capital Update | National Grid PLC | RNS |
| 19/08/20 | | 13:41:13 | 19 Aug 2020 | | | Annual Financial Report - Group Companies | National Grid PLC | RNS |
| 18/08/20 | | 15:35:09 | 18 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 18/08/20 | | 09:00:04 | 18 Aug 2020 | | | Scrip Dividend | National Grid PLC | RNS |
| 14/08/20 | | 14:59:21 | 14 Aug 2020 | | | Annual Financial Report - Group Companies | National Grid PLC | RNS |
| 10/08/20 | | 10:36:20 | 10 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 10/08/20 | | 10:30:07 | 10 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 07/08/20 | | 13:15:40 | 7 Aug 2020 | | | Publication of a Prospectus | National Grid PLC | RNS |
| 05/08/20 | | 15:30:01 | 5 Aug 2020 | | | Change of Company Secretary | National Grid PLC | RNS |
| 04/08/20 | | 10:03:37 | 4 Aug 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/08/20 | | 14:06:58 | 3 Aug 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 03/08/20 | | 07:00:06 | 3 Aug 2020 | | | Rate Filing for Upstate New York Electric & Gas | National Grid PLC | RNS |
| 29/07/20 | | 16:19:53 | 29 Jul 2020 | | | Board Committee Changes | National Grid PLC | RNS |
| 27/07/20 | | 15:42:55 | 27 Jul 2020 | | | Publication of AGM Results | National Grid PLC | RNS |
| 16/07/20 | | 17:03:34 | 16 Jul 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 09/07/20 | | 13:00:02 | 9 Jul 2020 | | | Scrip Dividend for 2019/20 Final Dividend | National Grid PLC | RNS |
| 09/07/20 | | 07:05:06 | 9 Jul 2020 | | | Ofgem's Draft Determination for RIIO-T2 | National Grid PLC | RNS |
| 08/07/20 | | 14:30:06 | 8 Jul 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 07/07/20 | | 16:34:42 | 7 Jul 2020 | | | Holding(s) in Company | National Grid PLC | RNS |
| 02/07/20 | | 15:02:26 | 2 Jul 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/07/20 | | 12:07:32 | 1 Jul 2020 | | | Total Voting Rights | National Grid PLC | RNS |
| 30/06/20 | | 17:28:35 | 30 Jun 2020 | | | Holding(s) in Company | National Grid PLC | RNS |
| 25/06/20 | | 12:06:05 | 25 Jun 2020 | | | Publication of Annual Report and Accounts | National Grid PLC | RNS |
| 18/06/20 | | 07:00:06 | 18 Jun 2020 | | | Final Results | National Grid PLC | RNS |
