| 30/07/14 | | 17:00:02 | 30 Jul 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 30/07/14 | | 08:00:35 | 30 Jul 2014 | | | John Pettigrew appointed as UK Executive Director | National Grid PLC | RNS |
| 29/07/14 | | 17:30:01 | 29 Jul 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 29/07/14 | | 13:01:05 | 29 Jul 2014 | | | Result of AGM | National Grid PLC | RNS |
| 28/07/14 | | 17:00:01 | 28 Jul 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 28/07/14 | | 08:00:10 | 28 Jul 2014 | | | Interim Management Statement | National Grid PLC | RNS |
| 21/07/14 | | 17:00:01 | 21 Jul 2014 | | | Holding(s) in Company | National Grid PLC | RNS |
| 07/07/14 | | 17:00:04 | 7 Jul 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/07/14 | | 17:00:03 | 1 Jul 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 01/07/14 | | 17:00:03 | 1 Jul 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 18/06/14 | | 17:33:19 | 18 Jun 2014 | | | Notification of Directors' Interests | National Grid PLC | RNS |
| 11/06/14 | | 14:00:03 | 11 Jun 2014 | | | Scrip Dividend for 2013/14 Final Dividend | National Grid PLC | RNS |
| 10/06/14 | | 17:00:02 | 10 Jun 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 09/06/14 | | 14:00:03 | 9 Jun 2014 | | | Holding(s) in Company | National Grid PLC | RNS |
| 05/06/14 | | 13:46:20 | 5 Jun 2014 | | | Amendment to Financial Timetable | National Grid PLC | RNS |
| 05/06/14 | | 10:15:05 | 5 Jun 2014 | | | Publication of Annual Report and Accounts | National Grid PLC | RNS |
| 02/06/14 | | 17:00:05 | 2 Jun 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 28/05/14 | | 17:00:04 | 28 May 2014 | | | Director Declaration | National Grid PLC | RNS |
| 15/05/14 | | 08:02:02 | 15 May 2014 | | | Board Change | National Grid PLC | RNS |
| 15/05/14 | | 08:00:18 | 15 May 2014 | | | Full year results 2013/14 | National Grid PLC | RNS |
| 07/05/14 | | 17:00:02 | 7 May 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/05/14 | | 17:00:06 | 1 May 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 17/04/14 | | 17:00:01 | 17 Apr 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/04/14 | | 17:00:02 | 8 Apr 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/04/14 | | 17:00:05 | 1 Apr 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 18/03/14 | | 09:00:01 | 18 Mar 2014 | | | Directorate Change | National Grid PLC | RNS |
| 07/03/14 | | 16:00:01 | 7 Mar 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 06/03/14 | | 16:00:01 | 6 Mar 2014 | | | Director Declaration | National Grid PLC | RNS |
| 03/03/14 | | 16:00:04 | 3 Mar 2014 | | | Blocklisting Interim Review | National Grid PLC | RNS |
| 03/03/14 | | 16:00:04 | 3 Mar 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 03/03/14 | | 08:59:42 | 3 Mar 2014 | | | National Grid plc Board Appointment | National Grid PLC | RNS |
| 10/02/14 | | 16:00:04 | 10 Feb 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/02/14 | | 16:00:17 | 3 Feb 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 30/01/14 | | 07:00:16 | 30 Jan 2014 | | | Interim Management Statement | National Grid PLC | RNS |
| 23/01/14 | | 16:00:01 | 23 Jan 2014 | | | Dividend Reinvestment | National Grid PLC | RNS |
| 10/01/14 | | 13:00:04 | 10 Jan 2014 | | | Holding(s) in Company | National Grid PLC | RNS |
| 07/01/14 | | 16:00:01 | 7 Jan 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/01/14 | | 16:00:07 | 2 Jan 2014 | | | Total Voting Rights | National Grid PLC | RNS |
| 02/01/14 | | 16:00:07 | 2 Jan 2014 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 10/12/13 | | 16:30:02 | 10 Dec 2013 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 02/12/13 | | 16:08:18 | 2 Dec 2013 | | | Total Voting Rights | National Grid PLC | RNS |
| 21/11/13 | | 07:00:10 | 21 Nov 2013 | | | Half year report for 6 months ended 30 Sept 2013 | National Grid PLC | RNS |
| 07/11/13 | | 16:30:03 | 7 Nov 2013 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/11/13 | | 16:00:01 | 1 Nov 2013 | | | Total Voting Rights | National Grid PLC | RNS |
| 28/10/13 | | 16:00:02 | 28 Oct 2013 | | | Annual Report - Group companies with listed debt | National Grid PLC | RNS |
| 07/10/13 | | 17:00:03 | 7 Oct 2013 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/10/13 | | 17:00:01 | 1 Oct 2013 | | | Total Voting Rights | National Grid PLC | RNS |
| 23/09/13 | | 17:00:01 | 23 Sept 2013 | | | Annual Report - Group companies with listed debt | National Grid PLC | RNS |
| 13/09/13 | | 11:02:12 | 13 Sept 2013 | | | Publication of Prospectus | National Grid PLC | RNS |
| 10/09/13 | | 08:54:40 | 10 Sept 2013 | | | National Grid plc: new UK exec reporting lines | National Grid PLC | RNS |
