| 23/09/16 | 17:27:09 | 23 Sept 2016 | | Directorate Change | RNS |
| 01/09/16 | 18:25:04 | 1 Sept 2016 | | Total Voting Rights | RNS |
| 22/08/16 | 16:54:39 | 22 Aug 2016 | | Director/PDMR Shareholding | RNS |
| 10/08/16 | 16:26:33 | 10 Aug 2016 | | Director/PDMR Shareholding | RNS |
| 01/08/16 | 10:00:04 | 1 Aug 2016 | | Total Voting Rights | RNS |
| 28/07/16 | 16:06:45 | 28 Jul 2016 | | Director/PDMR Shareholding | RNS |
| 21/07/16 | 19:01:32 | 21 Jul 2016 | | Result of AGM | RNS |
| 21/07/16 | 08:00:07 | 21 Jul 2016 | | AGM Trading Update | RNS |
| 01/07/16 | 13:58:25 | 1 Jul 2016 | | Total Voting Rights | RNS |
| 21/06/16 | 15:38:13 | 21 Jun 2016 | | Annual Financial Report | RNS |
| 14/06/16 | 08:00:08 | 14 Jun 2016 | | Final Results | RNS |
| 01/06/16 | 15:21:27 | 1 Jun 2016 | | Total Voting Rights | RNS |
| 31/05/16 | 17:15:53 | 31 May 2016 | | Notice of Results | RNS |
| 03/05/16 | 15:22:12 | 3 May 2016 | | Total Voting Rights | RNS |
| 08/04/16 | 15:22:16 | 8 Apr 2016 | | Director Declaration | RNS |
| 01/04/16 | 16:37:22 | 1 Apr 2016 | | Total Voting Rights | RNS |
| 01/03/16 | 16:58:09 | 1 Mar 2016 | | Total Voting Rights | RNS |
| 25/02/16 | 17:13:53 | 25 Feb 2016 | | Home Member State | RNS |
| 16/02/16 | 16:21:36 | 16 Feb 2016 | | Director/PDMR Shareholding | RNS |
| 11/02/16 | 07:00:11 | 11 Feb 2016 | | Trading Update | RNS |
| 05/02/16 | 07:00:06 | 5 Feb 2016 | | Acquisition | RNS |
| 01/02/16 | 12:27:27 | 1 Feb 2016 | | Total Voting Rights | RNS |
| 19/01/16 | 14:31:57 | 19 Jan 2016 | | PDMR Shareholding | RNS |
| 04/01/16 | 14:30:53 | 4 Jan 2016 | | Total Voting Rights | RNS |
| 17/12/15 | 07:00:09 | 17 Dec 2015 | | Acquisition of Visiometrics | RNS |
| 01/12/15 | 16:28:45 | 1 Dec 2015 | | Total Voting Rights | RNS |
| 18/11/15 | 13:12:27 | 18 Nov 2015 | | Directorate Change | RNS |
| 18/11/15 | 13:01:16 | 18 Nov 2015 | | Doc re. Half Yearly Report | RNS |
| 17/11/15 | 07:00:07 | 17 Nov 2015 | | Half Yearly Report | RNS |
| 06/11/15 | 16:26:38 | 6 Nov 2015 | | Notice of Half Year Results and Dividend | RNS |
| 02/11/15 | 12:47:42 | 2 Nov 2015 | | Total Voting Rights | RNS |
| 06/10/15 | 08:00:09 | 6 Oct 2015 | | Acquisition | RNS |
| 05/10/15 | 12:03:13 | 5 Oct 2015 | | Director/PDMR Shareholding | RNS |
| 01/10/15 | 19:15:51 | 1 Oct 2015 | | Total Voting Rights | RNS |
| 17/09/15 | 11:00:02 | 17 Sept 2015 | | Investor Event | RNS |
| 01/09/15 | 17:14:15 | 1 Sept 2015 | | Holding(s) in Company | RNS |
| 01/09/15 | 15:48:47 | 1 Sept 2015 | | Total Voting Rights | RNS |
| 26/08/15 | 11:53:14 | 26 Aug 2015 | | Director/PDMR Shareholding | RNS |
| 11/08/15 | 18:11:06 | 11 Aug 2015 | | Director/PDMR Shareholding - Replacement | RNS |
| 11/08/15 | 15:38:03 | 11 Aug 2015 | | Director/PDMR Shareholding | RNS |
| 03/08/15 | 14:26:17 | 3 Aug 2015 | | Director/PDMR Shareholding | RNS |
| 03/08/15 | 13:33:45 | 3 Aug 2015 | | Total Voting Rights | RNS |
| 24/07/15 | 11:06:42 | 24 Jul 2015 | | Directorate Change | RNS |
| 23/07/15 | 18:33:44 | 23 Jul 2015 | | Result of AGM | RNS |
| 23/07/15 | 08:00:08 | 23 Jul 2015 | | AGM Trading Update | RNS |
| 03/07/15 | 11:46:25 | 3 Jul 2015 | | Blocklisting Interim Review | RNS |
| 01/07/15 | 15:19:35 | 1 Jul 2015 | | Total Voting Rights | RNS |
| 30/06/15 | 17:56:53 | 30 Jun 2015 | | Director Declaration | RNS |
| 23/06/15 | 11:49:47 | 23 Jun 2015 | | Annual Financial Report | RNS |
| 11/06/15 | 08:00:11 | 11 Jun 2015 | | Final Results | RNS |
