| 14/02/17 | | 17:43:08 | 14 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 13/02/17 | | 17:37:23 | 13 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 10/02/17 | | 17:29:16 | 10 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 09/02/17 | | 17:38:29 | 9 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 09/02/17 | | 09:04:02 | 9 Feb 2017 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/02/17 | | 17:30:06 | 8 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 07/02/17 | | 17:59:06 | 7 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 06/02/17 | | 18:13:53 | 6 Feb 2017 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 06/02/17 | | 07:00:07 | 6 Feb 2017 | | | Share Buy-back Programme | National Grid PLC | RNS |
| 22/12/16 | | 17:32:12 | 22 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 22/12/16 | | 09:30:50 | 22 Dec 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 21/12/16 | | 17:24:04 | 21 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 20/12/16 | | 17:30:46 | 20 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 16/12/16 | | 17:44:35 | 16 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 15/12/16 | | 17:27:02 | 15 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 14/12/16 | | 17:22:14 | 14 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 13/12/16 | | 17:27:54 | 13 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 12/12/16 | | 17:31:52 | 12 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 09/12/16 | | 17:39:13 | 9 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 09/12/16 | | 12:26:19 | 9 Dec 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/12/16 | | 17:41:19 | 8 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 08/12/16 | | 07:00:11 | 8 Dec 2016 | | | Sale of majority interest in NG Gas Distribution | National Grid PLC | RNS |
| 06/12/16 | | 17:51:28 | 6 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 05/12/16 | | 17:33:28 | 5 Dec 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 01/12/16 | | 13:00:01 | 1 Dec 2016 | | | Scrip Dividend for 2016/17 Interim Dividend | National Grid PLC | RNS |
| 01/12/16 | | 12:00:06 | 1 Dec 2016 | | | Total Voting Rights | National Grid PLC | RNS |
| 30/11/16 | | 17:22:39 | 30 Nov 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 30/11/16 | | 16:00:01 | 30 Nov 2016 | | | Holding(s) in Company | National Grid PLC | RNS |
| 25/11/16 | | 17:48:08 | 25 Nov 2016 | | | Transaction in Own Shares | National Grid PLC | RNS |
| 24/11/16 | | 07:00:08 | 24 Nov 2016 | | | Share Buy-back Programme | National Grid PLC | RNS |
| 24/11/16 | | 07:00:08 | 24 Nov 2016 | | | Notice of Adjustment to the Conversion Price | National Grid PLC | RNS |
| 21/11/16 | | 15:21:56 | 21 Nov 2016 | | | Holding(s) in Company | National Grid PLC | RNS |
| 10/11/16 | | 07:00:10 | 10 Nov 2016 | | | National Grid Half Year Results - 30 Sept 2016 | National Grid PLC | RNS |
| 08/11/16 | | 10:37:20 | 8 Nov 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 01/11/16 | | 11:30:06 | 1 Nov 2016 | | | Total Voting Rights | National Grid PLC | RNS |
| 11/10/16 | | 12:28:54 | 11 Oct 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 03/10/16 | | 12:00:02 | 3 Oct 2016 | | | Total Voting Rights | National Grid PLC | RNS |
| 03/10/16 | | 08:00:09 | 3 Oct 2016 | | | Rate case order issued for Massachusetts Electric | National Grid PLC | RNS |
| 29/09/16 | | 08:00:06 | 29 Sept 2016 | | | Other Activities & JVs teach-in event in London | National Grid PLC | RNS |
| 28/09/16 | | 09:14:02 | 28 Sept 2016 | | | Annual Report-Group Companies With Listed Debt | National Grid PLC | RNS |
| 27/09/16 | | 18:04:47 | 27 Sept 2016 | | | Publication of a Prospectus | National Grid PLC | RNS |
| 22/09/16 | | 11:21:01 | 22 Sept 2016 | | | Annual Report - Group Company With Listed Debt | National Grid PLC | RNS |
| 21/09/16 | | 17:56:32 | 21 Sept 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 12/09/16 | | 15:00:04 | 12 Sept 2016 | | | Director/PDMR Shareholding | National Grid PLC | RNS |
| 08/09/16 | | 11:13:07 | 8 Sept 2016 | | | Annual Financial Report | National Grid PLC | RNS |
| 08/09/16 | | 08:00:07 | 8 Sept 2016 | | | Rate filing joint proposal for KEDNY & KEDLI | National Grid PLC | RNS |
| 01/09/16 | | 12:10:05 | 1 Sept 2016 | | | Total Voting Rights | National Grid PLC | RNS |
| 01/09/16 | | 09:16:41 | 1 Sept 2016 | | | Block listing Interim Review | National Grid PLC | RNS |
| 23/08/16 | | 08:00:07 | 23 Aug 2016 | | | Black Start Contracts | National Grid PLC | RNS |
| 18/08/16 | | 08:00:11 | 18 Aug 2016 | | | Ofgem announcement on Mid-Period Review | National Grid PLC | RNS |
