| 01/06/21 | 10:29:03 | 1 Jun 2021 | | Total Voting Rights | RNS |
| 21/05/21 | 09:46:36 | 21 May 2021 | | Director/PDMR Shareholding | RNS |
| 17/05/21 | 07:10:05 | 17 May 2021 | | SOUTH WEST WATER – GREEN RECOVERY INVESTMENT | RNS |
| 30/04/21 | 11:51:16 | 30 Apr 2021 | | Total Voting Rights | RNS |
| 20/04/21 | 14:03:29 | 20 Apr 2021 | | Director/PDMR Shareholding | RNS |
| 07/04/21 | 16:45:26 | 7 Apr 2021 | | Director/PDMR Shareholding | RNS |
| 31/03/21 | 12:58:46 | 31 Mar 2021 | | Total Voting Rights | RNS |
| 30/03/21 | 07:00:07 | 30 Mar 2021 | | Trading Statement | RNS |
| 24/03/21 | 16:26:51 | 24 Mar 2021 | | Results Announcement for Pennon notes due 2022 | RNS |
| 23/03/21 | 10:51:41 | 23 Mar 2021 | | Director/PDMR Shareholding | RNS |
| 16/03/21 | 07:00:09 | 16 Mar 2021 | | Tender offer for Pennon notes due 2022 | RNS |
| 26/02/21 | 16:15:34 | 26 Feb 2021 | | Total Voting Rights | RNS |
| 23/02/21 | 17:57:11 | 23 Feb 2021 | | Director/PDMR Shareholding | RNS |
| 19/02/21 | 18:05:37 | 19 Feb 2021 | | Director/PDMR Shareholding | RNS |
| 01/02/21 | 11:22:28 | 1 Feb 2021 | | Block listing Interim Review | RNS |
| 01/02/21 | 11:18:00 | 1 Feb 2021 | | Total Voting Rights | RNS |
| 20/01/21 | 15:21:17 | 20 Jan 2021 | | Director/PDMR Shareholding | RNS |
| 31/12/20 | 09:50:45 | 31 Dec 2020 | | Total Voting Rights | RNS |
| 24/12/20 | 11:14:28 | 24 Dec 2020 | | Holding(s) in Company | RNS |
| 22/12/20 | 17:15:44 | 22 Dec 2020 | | Director/PDMR Shareholding | RNS |
| 30/11/20 | 13:41:17 | 30 Nov 2020 | | Total Voting Rights | RNS |
| 24/11/20 | 07:00:03 | 24 Nov 2020 | | Pennon Half Year Results 2020/21 | RNS |
| 20/11/20 | 14:40:50 | 20 Nov 2020 | | Director/PDMR Shareholding | RNS |
| 30/10/20 | 16:02:43 | 30 Oct 2020 | | Total Voting Rights | RNS |
| 28/10/20 | 14:44:11 | 28 Oct 2020 | | Director/PDMR Shareholding | RNS |
| 23/10/20 | 07:00:04 | 23 Oct 2020 | | WaterShare+ Scheme Result of Share Offer | RNS |
| 20/10/20 | 15:53:57 | 20 Oct 2020 | | Director/PDMR Shareholding | RNS |
| 20/10/20 | 11:00:04 | 20 Oct 2020 | | Holding(s) in Company | RNS |
| 14/10/20 | 15:35:27 | 14 Oct 2020 | | Holding(s) in Company | RNS |
| 01/10/20 | 11:50:00 | 1 Oct 2020 | | Total Voting Rights | RNS |
| 25/09/20 | 07:00:02 | 25 Sept 2020 | | Trading Statement | RNS |
| 23/09/20 | 17:20:11 | 23 Sept 2020 | | Holding(s) in Company | RNS |
| 22/09/20 | 16:02:13 | 22 Sept 2020 | | Director/PDMR Shareholding | RNS |
| 21/09/20 | 16:54:01 | 21 Sept 2020 | | Holding(s) in Company | RNS |
| 18/09/20 | 13:05:11 | 18 Sept 2020 | | Publication of Prospectus – WaterShare+ Scheme | RNS |
| 08/09/20 | 15:50:46 | 8 Sept 2020 | | Director/PDMR Shareholding | RNS |
| 04/09/20 | 14:19:50 | 4 Sept 2020 | | Director/PDMR Shareholding | RNS |
| 01/09/20 | 10:49:02 | 1 Sept 2020 | | Total Voting Rights | RNS |
| 21/08/20 | 15:12:03 | 21 Aug 2020 | | Director/PDMR Shareholding | RNS |
| 04/08/20 | 12:38:24 | 4 Aug 2020 | | Director/PDMR Shareholding | RNS |
| 03/08/20 | 14:10:40 | 3 Aug 2020 | | Block listing Interim Review | RNS |
| 03/08/20 | 14:05:02 | 3 Aug 2020 | | Total Voting Rights | RNS |
| 31/07/20 | 14:02:43 | 31 Jul 2020 | | Result of AGM | RNS |
| 21/07/20 | 17:21:57 | 21 Jul 2020 | | Director/PDMR Shareholding | RNS |
| 15/07/20 | 11:15:43 | 15 Jul 2020 | | Director/PDMR Shareholding | RNS |
| 10/07/20 | 10:22:51 | 10 Jul 2020 | | Additional Listing | RNS |
| 08/07/20 | 13:10:15 | 8 Jul 2020 | | Viridor sale completion, Board changes and AGM | RNS |
| 07/07/20 | 10:58:49 | 7 Jul 2020 | | Additional Listing | RNS |
| 03/07/20 | 09:31:00 | 3 Jul 2020 | | PUBLICATION OF ANNUAL REPORT AND ACCOUNTS 2020 | RNS |
| 01/07/20 | 11:11:14 | 1 Jul 2020 | | Total Voting Rights | RNS |