| 07/11/23 | 07:00:11 | 7 Nov 2023 | | Final Results | RNS |
| 26/10/23 | 14:42:56 | 26 Oct 2023 | | Transaction in own shares and total voting rights | RNS |
| 26/10/23 | 07:00:08 | 26 Oct 2023 | | Transaction in own shares and total voting rights | RNS |
| 08/08/23 | 10:17:12 | 8 Aug 2023 | | Holding(s) in Company | RNS |
| 07/08/23 | 11:10:04 | 7 Aug 2023 | | Holding(s) in Company | RNS |
| 04/08/23 | 07:00:03 | 4 Aug 2023 | | Transaction in Own Shares & TVR | RNS |
| 03/07/23 | 07:00:05 | 3 Jul 2023 | | Completion of the Disposal & Total Voting Rights | RNS |
| 30/06/23 | 09:32:02 | 30 Jun 2023 | | Result of General Meeting | RNS |
| 06/06/23 | 07:00:05 | 6 Jun 2023 | | Proposed Disposal of Vigilant for £6.5 million | RNS |
| 28/04/23 | 07:00:08 | 28 Apr 2023 | | Directorate Change | RNS |
| 04/04/23 | 07:00:06 | 4 Apr 2023 | | Directorate Change | RNS |
| 14/03/23 | 07:00:04 | 14 Mar 2023 | | Half-year Report | RNS |
| 20/01/23 | 07:00:04 | 20 Jan 2023 | | Directorate Change | RNS |
| 20/12/22 | 07:00:11 | 20 Dec 2022 | | Acquisition of Safecell Security Group | RNS |
| 06/12/22 | 15:51:12 | 6 Dec 2022 | | Result of AGM | RNS |
| 06/12/22 | 07:00:06 | 6 Dec 2022 | | AGM Statement, Potential Divestment, Board Changes | RNS |
| 11/11/22 | 07:00:04 | 11 Nov 2022 | | Final Results | RNS |
| 27/10/22 | 07:00:07 | 27 Oct 2022 | | Publication of 2022 Final Results | RNS |
| 15/09/22 | 07:00:07 | 15 Sept 2022 | | Contract Wins & Trading Update | RNS |
| 06/07/22 | 07:00:08 | 6 Jul 2022 | | Acquisition | RNS |
| 31/03/22 | 17:08:55 | 31 Mar 2022 | | Director/PDMR Shareholding | RNS |
| 29/03/22 | 14:50:10 | 29 Mar 2022 | | Director/PDMR Shareholding | RNS |
| 09/03/22 | 07:00:07 | 9 Mar 2022 | | Half-year Report | RNS |
| 24/01/22 | 07:00:14 | 24 Jan 2022 | | Strategic Partnership | RNS |
| 26/11/21 | 12:03:37 | 26 Nov 2021 | | Grant of Options, PDMR dealing | RNS |
| 24/11/21 | 13:36:03 | 24 Nov 2021 | | Result of AGM | RNS |
| 18/11/21 | 07:00:03 | 18 Nov 2021 | | Acquisition | RNS |
| 08/11/21 | 12:28:42 | 8 Nov 2021 | | Holding(s) in Company | RNS |
| 28/10/21 | 14:38:05 | 28 Oct 2021 | | Holding(s) in Company | RNS |
| 21/10/21 | 07:00:02 | 21 Oct 2021 | | Final Results | RNS |
| 06/10/21 | 10:54:51 | 6 Oct 2021 | | Holding(s) in Company | RNS |
| 04/10/21 | 07:00:07 | 4 Oct 2021 | | Trading Statement and Strategic Partnership | RNS |
| 02/07/21 | 07:44:48 | 2 Jul 2021 | | Holding(s) in Company | RNS |
| 28/06/21 | 07:00:11 | 28 Jun 2021 | | Trading Statement | RNS |
| 24/03/21 | 07:00:16 | 24 Mar 2021 | | Director/PDMR Shareholding | RNS |
| 12/03/21 | 10:07:04 | 12 Mar 2021 | | Holding(s) in Company | RNS |
| 01/03/21 | 07:00:07 | 1 Mar 2021 | | Half-year Report | RNS |
| 18/01/21 | 07:00:07 | 18 Jan 2021 | | Holding(s) in Company | RNS |
| 25/11/20 | 13:52:36 | 25 Nov 2020 | | Result of AGM | RNS |
| 21/10/20 | 07:00:02 | 21 Oct 2020 | | Final Results | RNS |
| 13/08/20 | 11:00:02 | 13 Aug 2020 | | Dividend Reinstated and Contract Win | RNS |
| 02/07/20 | 07:00:04 | 2 Jul 2020 | | Director/PDMR Shareholding | RNS |
| 01/07/20 | 07:00:06 | 1 Jul 2020 | | Director/PDMR Shareholding | RNS |
| 15/06/20 | 07:00:09 | 15 Jun 2020 | | Contract Renewal and Uplift | RNS |
| 08/06/20 | 07:00:06 | 8 Jun 2020 | | Trading Update | RNS |
| 04/06/20 | 16:40:25 | 4 Jun 2020 | | Second Price Monitoring Extn | RNS |
| 04/06/20 | 16:35:51 | 4 Jun 2020 | | Price Monitoring Extension | RNS |
| 19/03/20 | 15:01:50 | 19 Mar 2020 | | Cancellation of Dividend | RNS |
| 02/03/20 | 07:00:05 | 2 Mar 2020 | | Half-year Report | RNS |
| 04/02/20 | 08:12:00 | 4 Feb 2020 | | Holding(s) in Company | RNS |
