| 25/06/19 | 15:01:33 | 25 Jun 2019 | | Holding(s) in Company | RNS |
| 24/06/19 | 16:48:18 | 24 Jun 2019 | | Result of AGM | RNS |
| 20/06/19 | 17:34:18 | 20 Jun 2019 | | Directors' Dealings & Transaction in Own Shares | RNS |
| 12/06/19 | 18:17:46 | 12 Jun 2019 | | Result of Tender Offer | RNS |
| 29/05/19 | 16:12:07 | 29 May 2019 | | Posting of Annual Report and Notice of AGM | RNS |
| 29/05/19 | 16:08:45 | 29 May 2019 | | Tender Offer | RNS |
| 23/05/19 | 17:37:41 | 23 May 2019 | | Disposal of Sira Defence and Security Limited | RNS |
| 22/05/19 | 08:00:03 | 22 May 2019 | | Final Results | RNS |
| 19/03/19 | 07:00:04 | 19 Mar 2019 | | Trading Update and Notice of Final Results | RNS |
| 29/01/19 | 07:00:09 | 29 Jan 2019 | | Change of Adviser | RNS |
| 30/10/18 | 11:00:05 | 30 Oct 2018 | | Result of Buy-back, PDMR Dealing and TVR | RNS |
| 25/10/18 | 15:30:02 | 25 Oct 2018 | | Ordinary Share Buy-back | RNS |
| 04/10/18 | 10:30:05 | 4 Oct 2018 | | Disposal of Impetus Automotive Limited | RNS |
| 27/09/18 | 08:00:16 | 27 Sept 2018 | | Half-year Report | RNS |
| 25/06/18 | 15:33:33 | 25 Jun 2018 | | Result of AGM | RNS |
| 25/05/18 | 08:00:04 | 25 May 2018 | | Final Results | RNS |
| 07/03/18 | 07:00:06 | 7 Mar 2018 | | Trading Update and Notice of Final Results | RNS |
| 13/10/17 | 16:01:01 | 13 Oct 2017 | | Holding(s) in Company | RNS |
| 13/10/17 | 15:35:01 | 13 Oct 2017 | | Result of Buy-back, PDMR Dealing and TVR | RNS |
| 11/10/17 | 10:30:30 | 11 Oct 2017 | | Ordinary Share Buy-back | RNS |
| 21/09/17 | 08:00:04 | 21 Sept 2017 | | Interim Results | RNS |
| 29/06/17 | 14:39:29 | 29 Jun 2017 | | Result of AGM | RNS |
| 31/05/17 | 13:45:43 | 31 May 2017 | | Notice of AGM | RNS |
| 26/05/17 | 08:00:09 | 26 May 2017 | | Final Results | RNS |
| 21/03/17 | 10:15:01 | 21 Mar 2017 | | Transaction in Own Shares | RNS |
| 20/03/17 | 15:31:50 | 20 Mar 2017 | | Trading Update and Notice of Final Results | RNS |
| 20/09/16 | 08:00:10 | 20 Sept 2016 | | Interim Results | RNS |
| 28/06/16 | 18:33:09 | 28 Jun 2016 | | Result of AGM | RNS |
| 01/06/16 | 18:06:17 | 1 Jun 2016 | | Posting of Annual Report and Notice of AGM | RNS |
| 27/05/16 | 08:00:07 | 27 May 2016 | | Preliminary Results | RNS |
| 08/02/16 | 15:54:36 | 8 Feb 2016 | | Holding(s) in Company | RNS |
| 08/02/16 | 15:45:02 | 8 Feb 2016 | | Holding(s) in Company | RNS |
| 26/01/16 | 12:00:01 | 26 Jan 2016 | | Change of Registered Office | RNS |
| 18/12/15 | 07:00:06 | 18 Dec 2015 | | Disposal of JMP Consultants Limited | RNS |
| 28/09/15 | 08:00:45 | 28 Sept 2015 | | Interim Results | RNS |
| 21/09/15 | 11:40:21 | 21 Sept 2015 | | Holding(s) in Company | RNS |
| 21/09/15 | 11:38:32 | 21 Sept 2015 | | Holding(s) in Company | RNS |
| 29/06/15 | 13:32:24 | 29 Jun 2015 | | Result of AGM | RNS |
| 03/06/15 | 18:23:21 | 3 Jun 2015 | | Posting of Annual Report and Notice of AGM | RNS |
| 29/05/15 | 08:00:09 | 29 May 2015 | | Final Results | RNS |
| 26/03/15 | 11:02:40 | 26 Mar 2015 | | Acquisition | RNS |
| 05/02/15 | 07:00:14 | 5 Feb 2015 | | Transaction in Own Shares | RNS |
| 06/10/14 | 17:49:23 | 6 Oct 2014 | | Transaction in Own Shares | RNS |
| 22/09/14 | 08:00:12 | 22 Sept 2014 | | Interim Results | RNS |
| 26/06/14 | 16:19:30 | 26 Jun 2014 | | Result of AGM | RNS |
| 02/06/14 | 18:43:47 | 2 Jun 2014 | | Notice of AGM | RNS |
| 30/05/14 | 14:53:38 | 30 May 2014 | | Transaction in Own Shares | RNS |
| 29/05/14 | 15:35:10 | 29 May 2014 | | Annual Financial Report | RNS |
| 29/05/14 | 08:00:08 | 29 May 2014 | | Final Results | RNS |
| 18/03/14 | 15:14:05 | 18 Mar 2014 | | Change of Registered Office | RNS |