| 19/04/17 | 16:31:00 | 19 Apr 2017 | | Form 8.3 - Avingtrans Plc | PRN |
| 15/03/16 | 08:25:02 | 15 Mar 2016 | | Exercise of Share Options | RNS |
| 07/03/16 | 07:00:07 | 7 Mar 2016 | | Sigma signs £75m deal with Rolls-Royce | RNS |
| 04/03/16 | 07:00:07 | 4 Mar 2016 | | Completion of Acquisition | RNS |
| 25/02/16 | 07:00:13 | 25 Feb 2016 | | Holding(s) in Company | RNS |
| 17/02/16 | 07:00:05 | 17 Feb 2016 | | Interim Results | RNS |
| 15/02/16 | 07:00:07 | 15 Feb 2016 | | New Contract Win and Framework Agreements | RNS |
| 29/01/16 | 07:00:08 | 29 Jan 2016 | | Acquisition of pipe manufacturing business | RNS |
| 11/12/15 | 11:10:01 | 11 Dec 2015 | | Exercise of Share Options | RNS |
| 21/10/15 | 14:05:24 | 21 Oct 2015 | | Exercise of Share Options | RNS |
| 30/09/15 | 08:00:17 | 30 Sept 2015 | | Final Results | RNS |
| 01/09/15 | 12:00:21 | 1 Sept 2015 | | Holding(s) in Company | RNS |
| 27/05/15 | 09:58:15 | 27 May 2015 | | Exercise of Options | RNS |
| 11/05/15 | 08:00:11 | 11 May 2015 | | Stainless Metalcraft secures contract | RNS |
| 25/02/15 | 13:43:06 | 25 Feb 2015 | | Director/PDMR Shareholding | RNS |
| 25/02/15 | 07:00:29 | 25 Feb 2015 | | Half Yearly Report | RNS |
| 17/02/15 | 07:00:18 | 17 Feb 2015 | | Notice of Results | RNS |
| 11/12/14 | 07:00:20 | 11 Dec 2014 | | Award of Options | RNS |
| 02/12/14 | 07:00:09 | 2 Dec 2014 | | Exercise of Share Options | RNS |
| 27/11/14 | 07:00:10 | 27 Nov 2014 | | Long Term Airbus Contract Announcement | RNS |
| 24/11/14 | 07:00:11 | 24 Nov 2014 | | Trading Update | RNS |
| 12/11/14 | 13:40:01 | 12 Nov 2014 | | Result of AGM | RNS |
| 12/11/14 | 08:40:01 | 12 Nov 2014 | | Holding(s) in Company | RNS |
| 30/10/14 | 07:00:14 | 30 Oct 2014 | | Director/PDMR Shareholding | RNS |
| 01/10/14 | 08:00:08 | 1 Oct 2014 | | Final Results | RNS |
| 11/08/14 | 16:10:02 | 11 Aug 2014 | | Completion of RMDG Aerospace Acquisition | RNS |
| 06/08/14 | 08:00:05 | 6 Aug 2014 | | Acquisition of RMDG | RNS |
| 04/08/14 | 08:00:17 | 4 Aug 2014 | | Board Appointment | RNS |
| 03/06/14 | 15:41:01 | 3 Jun 2014 | | Director/PDMR Shareholding | RNS |
| 03/06/14 | 15:40:02 | 3 Jun 2014 | | Holding(s) in Company | RNS |
| 03/04/14 | 08:00:16 | 3 Apr 2014 | | Director/PDMR Shareholding | RNS |
| 26/02/14 | 07:00:15 | 26 Feb 2014 | | Interim Results | RNS |
| 11/02/14 | 10:45:01 | 11 Feb 2014 | | Notice of Results | RNS |
| 16/12/13 | 12:15:13 | 16 Dec 2013 | | Director/PDMR Shareholding | RNS |
| 22/11/13 | 16:45:01 | 22 Nov 2013 | | Award of Options, Issue of Equity and TVR | RNS |
| 07/11/13 | 17:22:39 | 7 Nov 2013 | | Exercise of Share Options | RNS |
| 06/11/13 | 14:21:58 | 6 Nov 2013 | | Result of AGM | RNS |
| 30/10/13 | 13:47:38 | 30 Oct 2013 | | Holding(s) in Company | RNS |
| 24/10/13 | 16:51:36 | 24 Oct 2013 | | Holding(s) in Company | RNS |
| 24/10/13 | 13:00:04 | 24 Oct 2013 | | Director/PDMR Shareholding | RNS |
| 23/10/13 | 11:30:02 | 23 Oct 2013 | | Holding(s) in Company | RNS |
| 01/10/13 | 08:00:13 | 1 Oct 2013 | | Sigma signs £55m contract win Rolls-Royce | RNS |
| 27/09/13 | 17:24:59 | 27 Sept 2013 | | Exercise of Share Options | RNS |
| 25/09/13 | 08:00:04 | 25 Sept 2013 | | Final Results | RNS |
