| 03/02/22 | 07:00:03 | 3 Feb 2022 | | Trading Update | RNS |
| 07/12/21 | 07:00:02 | 7 Dec 2021 | | Master Service Agreement with Compass Group | RNS |
| 12/11/21 | 07:00:02 | 12 Nov 2021 | | Directorate Change | RNS |
| 11/10/21 | 10:59:39 | 11 Oct 2021 | | PDMR Dealing | RNS |
| 28/09/21 | 07:00:02 | 28 Sept 2021 | | Interim Results | RNS |
| 29/06/21 | 15:08:37 | 29 Jun 2021 | | Result of AGM | RNS |
| 16/06/21 | 07:00:06 | 16 Jun 2021 | | North America Appointment | RNS |
| 04/06/21 | 07:00:04 | 4 Jun 2021 | | Annual Report and Notice of AGM | RNS |
| 04/05/21 | 14:22:01 | 4 May 2021 | | Total Voting Rights | RNS |
| 28/04/21 | 10:34:17 | 28 Apr 2021 | | Holding(s) in Company | RNS |
| 27/04/21 | 07:00:34 | 27 Apr 2021 | | Holding(s) in Company | RNS |
| 26/04/21 | 07:00:07 | 26 Apr 2021 | | Holding(s) in Company | RNS |
| 23/04/21 | 16:25:01 | 23 Apr 2021 | | Holding(s) in Company | RNS |
| 23/04/21 | 10:37:09 | 23 Apr 2021 | | PDMR Dealings | RNS |
| 23/04/21 | 10:36:20 | 23 Apr 2021 | | Holding(s) in Company | RNS |
| 22/04/21 | 11:45:04 | 22 Apr 2021 | | Result of General Meeting and Total Voting Rights | RNS |
| 20/04/21 | 07:00:01 | 20 Apr 2021 | | Contract Win | RNS |
| 01/04/21 | 15:52:21 | 1 Apr 2021 | | Result of Placing | RNS |
| 01/04/21 | 12:01:02 | 1 Apr 2021 | | Placing to raise up to £6.0 million | RNS |
| 01/04/21 | 12:00:01 | 1 Apr 2021 | | Preliminary Results | RNS |
| 18/03/21 | 07:00:04 | 18 Mar 2021 | | Contract Win | RNS |
| 01/02/21 | 09:28:58 | 1 Feb 2021 | | Holding(s) in Company | RNS |
| 28/01/21 | 07:00:12 | 28 Jan 2021 | | Appointment of Director | RNS |
| 26/01/21 | 07:00:05 | 26 Jan 2021 | | Pilot with World Federation of Haemophilia | RNS |
| 18/01/21 | 09:36:10 | 18 Jan 2021 | | Holding(s) in Company | RNS |
| 12/01/21 | 16:07:29 | 12 Jan 2021 | | Holding(s) in Company | RNS |
| 07/01/21 | 14:30:02 | 7 Jan 2021 | | Holding(s) in Company | RNS |
| 23/12/20 | 12:15:01 | 23 Dec 2020 | | Clarification re Grant of Options | RNS |
| 22/12/20 | 10:45:03 | 22 Dec 2020 | | Grant of Options under the Company's EMI Scheme | RNS |
| 04/12/20 | 11:35:17 | 4 Dec 2020 | | Holding(s) in Company | RNS |
| 17/11/20 | 07:00:11 | 17 Nov 2020 | | Contract Wins | RNS |
| 12/11/20 | 16:27:09 | 12 Nov 2020 | | Director/PDMR Shareholding | RNS |
| 06/11/20 | 13:15:15 | 6 Nov 2020 | | PDMR dealing | RNS |
| 26/10/20 | 10:08:00 | 26 Oct 2020 | | Holding(s) in Company | RNS |
| 05/10/20 | 09:16:57 | 5 Oct 2020 | | Holding(s) in Company | RNS |
| 18/09/20 | 07:00:01 | 18 Sept 2020 | | Interim Results | RNS |
| 14/09/20 | 14:06:21 | 14 Sept 2020 | | Holding(s) in Company | RNS |
| 30/06/20 | 11:53:12 | 30 Jun 2020 | | Result of AGM and Trading Update | RNS |
| 15/06/20 | 10:42:46 | 15 Jun 2020 | | Significant Contract Win | RNS |
| 09/06/20 | 16:06:37 | 9 Jun 2020 | | Annual Report and Notice of AGM | RNS |
| 07/05/20 | 07:11:50 | 7 May 2020 | | Preliminary Results | RNS |
| 04/05/20 | 16:05:19 | 4 May 2020 | | DIRECTOR RESIGNATION | RNS |
| 01/04/20 | 16:30:44 | 1 Apr 2020 | | Holding(s) in Company | RNS |
| 30/03/20 | 08:00:07 | 30 Mar 2020 | | Statement regarding Coronavirus | RNS |
| 13/03/20 | 07:00:04 | 13 Mar 2020 | | Change of Adviser | RNS |
| 25/02/20 | 08:19:00 | 25 Feb 2020 | | Holding(s) in Company | RNS |
| 18/02/20 | 07:00:04 | 18 Feb 2020 | | Significant contract wins in the rail sector | RNS |
| 28/01/20 | 10:43:23 | 28 Jan 2020 | | Holding(s) in Company | RNS |
| 03/01/20 | 09:17:13 | 3 Jan 2020 | | Holding(s) in Company | RNS |
| 23/12/19 | 07:00:09 | 23 Dec 2019 | | Significant long-term contract and trading update | RNS |
