| 27/11/17 | 16:00:26 | 27 Nov 2017 | | Director/PDMR Shareholding | RNS |
| 21/11/17 | 15:08:27 | 21 Nov 2017 | | Director/PDMR Shareholding | RNS |
| 21/11/17 | 07:00:03 | 21 Nov 2017 | | Trading Statement | RNS |
| 14/11/17 | 10:39:12 | 14 Nov 2017 | | Director/PDMR Shareholding | RNS |
| 16/10/17 | 18:35:07 | 16 Oct 2017 | | Director/PDMR Shareholding | RNS |
| 29/09/17 | 16:36:07 | 29 Sept 2017 | | Holding(s) in Company | RNS |
| 09/08/17 | 08:00:03 | 9 Aug 2017 | | Half-year Report | RNS |
| 04/07/17 | 08:00:05 | 4 Jul 2017 | | Completion of Acquisition | RNS |
| 23/06/17 | 10:11:31 | 23 Jun 2017 | | Total Voting Rights | RNS |
| 20/06/17 | 16:59:54 | 20 Jun 2017 | | Holding(s) in Company | RNS |
| 12/06/17 | 15:20:08 | 12 Jun 2017 | | Director/PDMR Shareholding | RNS |
| 05/06/17 | 10:08:00 | 5 Jun 2017 | | Director/PDMR Shareholding | RNS |
| 26/05/17 | 08:00:10 | 26 May 2017 | | Acquisition of Chromalox for US$415 million | RNS |
| 09/05/17 | 17:30:58 | 9 May 2017 | | Result of AGM | RNS |
| 09/05/17 | 08:00:08 | 9 May 2017 | | Trading Statement | RNS |
| 04/05/17 | 17:30:42 | 4 May 2017 | | Holding(s) in Company | RNS |
| 03/05/17 | 08:00:09 | 3 May 2017 | | Completion of Acquisition | RNS |
| 26/04/17 | 09:42:10 | 26 Apr 2017 | | Holding(s) in Company | RNS |
| 25/04/17 | 10:10:01 | 25 Apr 2017 | | Holding(s) in Company | RNS |
| 19/04/17 | 16:55:02 | 19 Apr 2017 | | Holding(s) in Company | RNS |
| 18/04/17 | 16:58:35 | 18 Apr 2017 | | Holding(s) in Company | RNS |
| 03/04/17 | 08:30:02 | 3 Apr 2017 | | Acquisition | RNS |
| 24/03/17 | 16:44:08 | 24 Mar 2017 | | Total Voting Rights | RNS |
| 23/03/17 | 13:45:14 | 23 Mar 2017 | | Director/PDMR Shareholding | RNS |
| 17/03/17 | 16:04:32 | 17 Mar 2017 | | Director/PDMR Shareholding | RNS |
| 09/03/17 | 07:00:07 | 9 Mar 2017 | | Final Results | RNS |
| 30/11/16 | 07:00:06 | 30 Nov 2016 | | Acquisition | RNS |
| 22/11/16 | 07:00:07 | 22 Nov 2016 | | Trading Statement | RNS |
| 17/11/16 | 16:23:06 | 17 Nov 2016 | | Director/PDMR Shareholding | RNS |
| 14/11/16 | 08:30:01 | 14 Nov 2016 | | Dr Krishnamurthy Rajagopal | RNS |
| 08/11/16 | 11:57:19 | 8 Nov 2016 | | Change of Director Details | RNS |
| 04/11/16 | 16:27:48 | 4 Nov 2016 | | Total Voting Rights | RNS |
| 28/10/16 | 08:00:12 | 28 Oct 2016 | | Board Succession Changes | RNS |
| 14/10/16 | 18:03:17 | 14 Oct 2016 | | Director/PDMR Shareholding | RNS |
| 14/10/16 | 16:20:16 | 14 Oct 2016 | | Total Voting Rights | RNS |
| 14/10/16 | 16:17:39 | 14 Oct 2016 | | Block listing Interim Review | RNS |
| 06/10/16 | 12:48:41 | 6 Oct 2016 | | Notification of Release Date - Trading Statement | RNS |
| 08/09/16 | 13:44:25 | 8 Sept 2016 | | Total Voting Rights | RNS |
| 18/08/16 | 09:30:01 | 18 Aug 2016 | | Board Appointment | RNS |
| 12/08/16 | 16:51:43 | 12 Aug 2016 | | Director/PDMR Shareholding | RNS |
| 09/08/16 | 08:05:03 | 9 Aug 2016 | | Spirax Sarco acquires assets of Hiter for £3.9 m | RNS |
| 09/08/16 | 08:00:09 | 9 Aug 2016 | | 2016 Half Year Results | RNS |
| 05/08/16 | 15:56:44 | 5 Aug 2016 | | Total Voting Rights | RNS |
| 01/07/16 | 12:43:54 | 1 Jul 2016 | | Total Voting Rights | RNS |
| 29/06/16 | 10:29:11 | 29 Jun 2016 | | Notice of Results | RNS |
| 21/06/16 | 18:40:14 | 21 Jun 2016 | | Director/PDMR Shareholding | RNS |
| 10/06/16 | 15:59:52 | 10 Jun 2016 | | Holding(s) in Company | RNS |
| 02/06/16 | 16:28:19 | 2 Jun 2016 | | Director/PDMR Shareholding | RNS |
| 01/06/16 | 10:45:02 | 1 Jun 2016 | | Total Voting Rights | RNS |
| 31/05/16 | 18:22:16 | 31 May 2016 | | Director Declaration | RNS |
