| 11/01/22 | 18:21:01 | 11 Jan 2022 | | Director/PDMR Shareholding | RNS |
| 15/12/21 | 16:41:29 | 15 Dec 2021 | | Second Price Monitoring Extn | RNS |
| 15/12/21 | 16:35:59 | 15 Dec 2021 | | Price Monitoring Extension | RNS |
| 14/12/21 | 17:30:02 | 14 Dec 2021 | | Director/PDMR Shareholding | RNS |
| 14/12/21 | 07:00:06 | 14 Dec 2021 | | Half Year Results | RNS |
| 30/11/21 | 16:24:49 | 30 Nov 2021 | | Total Voting Rights | RNS |
| 18/11/21 | 07:00:06 | 18 Nov 2021 | | EID Awarded Dismounted Soldier System Contract | RNS |
| 29/10/21 | 17:00:01 | 29 Oct 2021 | | Total Voting Rights | RNS |
| 15/10/21 | 17:00:08 | 15 Oct 2021 | | Director/PDMR Shareholding | RNS |
| 13/10/21 | 14:00:40 | 13 Oct 2021 | | Director/PDMR Shareholding | RNS |
| 05/10/21 | 17:52:56 | 5 Oct 2021 | | Director/PDMR Shareholding | RNS |
| 05/10/21 | 17:48:36 | 5 Oct 2021 | | Block Listing Application | RNS |
| 05/10/21 | 17:41:37 | 5 Oct 2021 | | Replacement: Block listing Interim Review | RNS |
| 05/10/21 | 17:15:05 | 5 Oct 2021 | | Holding(s) in Company | RNS |
| 05/10/21 | 10:20:38 | 5 Oct 2021 | | Block listing Interim Review | RNS |
| 30/09/21 | 16:40:53 | 30 Sept 2021 | | Second Price Monitoring Extn | RNS |
| 30/09/21 | 16:35:35 | 30 Sept 2021 | | Price Monitoring Extension | RNS |
| 30/09/21 | 16:21:40 | 30 Sept 2021 | | Total Voting Rights | RNS |
| 20/09/21 | 16:10:03 | 20 Sept 2021 | | Result of AGM | RNS |
| 20/09/21 | 07:00:07 | 20 Sept 2021 | | AGM Statement & First Quarter Update | RNS |
| 17/09/21 | 16:27:17 | 17 Sept 2021 | | Block listing Interim Review | RNS |
| 09/09/21 | 07:00:01 | 9 Sept 2021 | | Mass awarded £11m contract extension | RNS |
| 26/08/21 | 07:00:01 | 26 Aug 2021 | | Annual Report and Notice of Annual General Meeting | RNS |
| 20/08/21 | 14:22:14 | 20 Aug 2021 | | PDMR Shareholdings | RNS |
| 20/08/21 | 07:00:09 | 20 Aug 2021 | | SEA wins £4.6m upgrade contract for overseas navy | RNS |
| 18/08/21 | 09:56:39 | 18 Aug 2021 | | EBT Purchase | RNS |
| 12/08/21 | 12:50:03 | 12 Aug 2021 | | EBT Purchase | RNS |
| 10/08/21 | 17:00:04 | 10 Aug 2021 | | Director Share Awards and Shareholdings | RNS |
| 10/08/21 | 10:51:52 | 10 Aug 2021 | | EBT Purchase - Replacement | RNS |
| 10/08/21 | 10:50:41 | 10 Aug 2021 | | EBT Purchase - Replacement | RNS |
| 06/08/21 | 11:51:55 | 6 Aug 2021 | | Director/PDMR Shareholding | RNS |
| 06/08/21 | 07:00:02 | 6 Aug 2021 | | MCL wins contracts with MoD | RNS |
| 05/08/21 | 13:42:10 | 5 Aug 2021 | | Director/PDMR Shareholding | RNS |
| 05/08/21 | 09:41:39 | 5 Aug 2021 | | Director/PDMR Shareholding | RNS |
| 27/07/21 | 07:00:06 | 27 Jul 2021 | | Appointment of Non-Executive Director | RNS |
| 27/07/21 | 07:00:05 | 27 Jul 2021 | | Preliminary Results | RNS |
| 14/07/21 | 11:58:11 | 14 Jul 2021 | | Notice of Results | RNS |
| 07/07/21 | 07:00:03 | 7 Jul 2021 | | ELAC SONAR wins EUR49m contract for Italian Navy | RNS |
| 10/06/21 | 15:35:07 | 10 Jun 2021 | | Holding(s) in Company | RNS |
| 01/06/21 | 16:41:06 | 1 Jun 2021 | | Second Price Monitoring Extn | RNS |
| 01/06/21 | 16:35:47 | 1 Jun 2021 | | Price Monitoring Extension | RNS |
| 26/05/21 | 07:00:07 | 26 May 2021 | | Trading Update | RNS |
| 25/05/21 | 16:40:21 | 25 May 2021 | | Second Price Monitoring Extn | RNS |
| 25/05/21 | 16:35:26 | 25 May 2021 | | Price Monitoring Extension | RNS |
| 30/04/21 | 14:01:52 | 30 Apr 2021 | | Total Voting Rights | RNS |
| 06/04/21 | 14:10:20 | 6 Apr 2021 | | Director/PDMR Shareholding | RNS |
| 01/04/21 | 10:28:40 | 1 Apr 2021 | | Total Voting Rights | RNS |
| 01/04/21 | 10:27:28 | 1 Apr 2021 | | Block listing Interim Review | RNS |
| 31/03/21 | 16:45:04 | 31 Mar 2021 | | Holding(s) in Company | RNS |
| 29/03/21 | 14:40:03 | 29 Mar 2021 | | SEA wins £25m contract with UK MoD | RNS |
