| 29/06/21 | | 17:18:29 | 29 Jun 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 21/06/21 | | 13:32:06 | 21 Jun 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 14/06/21 | | 11:06:23 | 14 Jun 2021 | | | Acquisition completion: Western Power Distribution | National Grid PLC | RNS |
| 10/06/21 | | 13:00:04 | 10 Jun 2021 | | | Scrip Dividend for 2020/21 Final Dividend | National Grid PLC | RNS |
| 10/06/21 | | 07:00:09 | 10 Jun 2021 | | | Board Appointment | National Grid PLC | RNS |
| 09/06/21 | | 15:00:06 | 9 Jun 2021 | | | Holding(s) in Company | National Grid PLC | RNS |
| 08/06/21 | | 16:00:02 | 8 Jun 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/06/21 | | 12:24:22 | 8 Jun 2021 | | | Publication of Annual Report and Accounts | National Grid PLC | RNS |
| 03/06/21 | | 17:00:03 | 3 Jun 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/06/21 | | 09:01:49 | 2 Jun 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/06/21 | | 16:00:01 | 1 Jun 2021 | | | Holding(s) in Company | National Grid PLC | RNS |
| 01/06/21 | | 12:21:56 | 1 Jun 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 27/05/21 | | 16:30:07 | 27 May 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 20/05/21 | | 07:00:11 | 20 May 2021 | | | Board Changes | National Grid PLC | RNS |
| 20/05/21 | | 07:00:09 | 20 May 2021 | | | National Grid 2020/21 Full Year Results Statement | National Grid PLC | RNS |
| 17/05/21 | | 07:00:10 | 17 May 2021 | | | 3 yr rate proposal filed:National Grid KEDNY KEDLI | National Grid PLC | RNS |
| 10/05/21 | | 16:05:09 | 10 May 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 04/05/21 | | 14:57:23 | 4 May 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 04/05/21 | | 12:30:05 | 4 May 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 30/04/21 | | 09:00:01 | 30 Apr 2021 | | | Director's Other Appointment | National Grid PLC | RNS |
| 22/04/21 | | 12:30:04 | 22 Apr 2021 | | | Results of General Meeting | National Grid PLC | RNS |
| 13/04/21 | | 16:00:08 | 13 Apr 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/04/21 | | 14:00:01 | 8 Apr 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 06/04/21 | | 17:30:04 | 6 Apr 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/04/21 | | 13:26:16 | 1 Apr 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 31/03/21 | | 11:32:26 | 31 Mar 2021 | | | Publication of Circular and Notice of GM | National Grid PLC | RNS |
| 25/03/21 | | 09:00:01 | 25 Mar 2021 | | | Chair Succession | National Grid PLC | RNS |
| 18/03/21 | | 07:00:06 | 18 Mar 2021 | | | Proposed WPD acquisition & portfolio repositioning | National Grid PLC | RNS |
| 15/03/21 | | 09:00:05 | 15 Mar 2021 | | | Climate transition action plan shareholder vote | National Grid PLC | RNS |
| 09/03/21 | | 10:00:06 | 9 Mar 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/03/21 | | 11:00:05 | 2 Mar 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/03/21 | | 07:00:03 | 2 Mar 2021 | | | Decision on Ofgem’s RIIO-2 FD and Dividend update | National Grid PLC | RNS |
| 01/03/21 | | 16:14:50 | 1 Mar 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 09/02/21 | | 14:00:01 | 9 Feb 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/02/21 | | 16:30:43 | 2 Feb 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/02/21 | | 15:36:41 | 1 Feb 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 28/01/21 | | 09:00:01 | 28 Jan 2021 | | | Board Committee Changes | National Grid PLC | RNS |
| 21/01/21 | | 07:00:02 | 21 Jan 2021 | | | Grid Guide to the Future of Gas: ESG virtual event | National Grid PLC | RNS |
| 20/01/21 | | 16:18:41 | 20 Jan 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 20/01/21 | | 08:00:01 | 20 Jan 2021 | | | Publication of Final Terms | National Grid PLC | RNS |
| 15/01/21 | | 15:45:02 | 15 Jan 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 13/01/21 | | 16:00:04 | 13 Jan 2021 | | | Total Voting Rights and Capital Update | National Grid PLC | RNS |
| 12/01/21 | | 09:00:06 | 12 Jan 2021 | | | Scrip Dividend | National Grid PLC | RNS |
| 08/01/21 | | 12:30:05 | 8 Jan 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 05/01/21 | | 10:00:07 | 5 Jan 2021 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 04/01/21 | | 12:30:53 | 4 Jan 2021 | | | Total Voting Rights | National Grid PLC | RNS |
| 24/12/20 | | 09:45:44 | 24 Dec 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 16/12/20 | | 17:18:59 | 16 Dec 2020 | | | Publication of Suppl.Prospcts | National Grid PLC | RNS |
| 10/12/20 | | 09:00:02 | 10 Dec 2020 | | | Board Committee Changes | National Grid PLC | RNS |
| 08/12/20 | | 13:00:01 | 8 Dec 2020 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
