| 16/10/23 | 16:10:01 | 16 Oct 2023 | | Holding(s) in Company | RNS |
| 10/10/23 | 17:58:46 | 10 Oct 2023 | | Holding(s) in Company | RNS |
| 10/10/23 | 07:00:12 | 10 Oct 2023 | | Holding(s) in Company | RNS |
| 05/10/23 | 14:30:15 | 5 Oct 2023 | | Holding(s) in Company | RNS |
| 04/10/23 | 14:21:31 | 4 Oct 2023 | | Holding(s) in Company | RNS |
| 03/10/23 | 15:45:21 | 3 Oct 2023 | | Holding(s) in Company | RNS |
| 03/10/23 | 08:00:01 | 3 Oct 2023 | | Holding(s) in Company | RNS |
| 02/10/23 | 07:00:04 | 2 Oct 2023 | | Completion of Diagnostic Services sale | RNS |
| 29/09/23 | 08:00:01 | 29 Sept 2023 | | Holding(s) in Company | RNS |
| 22/09/23 | 16:09:43 | 22 Sept 2023 | | Holding(s) in Company | RNS |
| 22/09/23 | 13:59:30 | 22 Sept 2023 | | Director/PDMR Shareholding | RNS |
| 21/09/23 | 16:22:05 | 21 Sept 2023 | | Holding(s) in Company | RNS |
| 20/09/23 | 15:31:41 | 20 Sept 2023 | | Holding(s) in Company | RNS |
| 20/09/23 | 07:00:09 | 20 Sept 2023 | | Holding(s) in Company | RNS |
| 15/09/23 | 17:43:54 | 15 Sept 2023 | | Holding(s) in Company | RNS |
| 13/09/23 | 13:50:24 | 13 Sept 2023 | | Holding(s) in Company | RNS |
| 13/09/23 | 07:00:07 | 13 Sept 2023 | | Holding(s) in Company | RNS |
| 08/09/23 | 08:00:01 | 8 Sept 2023 | | Holding(s) in Company | RNS |
| 06/09/23 | 15:00:01 | 6 Sept 2023 | | Holding(s) in Company | RNS |
| 05/09/23 | 08:00:01 | 5 Sept 2023 | | Holding(s) in Company | RNS |
| 01/09/23 | 07:00:07 | 1 Sept 2023 | | Holding(s) in Company | RNS |
| 31/08/23 | 16:57:19 | 31 Aug 2023 | | Holding(s) in Company | RNS |
| 30/08/23 | 15:21:56 | 30 Aug 2023 | | Holding(s) in Company | RNS |
| 29/08/23 | 15:53:14 | 29 Aug 2023 | | Holding(s) in Company | RNS |
| 29/08/23 | 15:44:44 | 29 Aug 2023 | | Holding(s) in Company | RNS |
| 25/08/23 | 16:00:01 | 25 Aug 2023 | | Holding(s) in Company | RNS |
| 18/08/23 | 09:00:01 | 18 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 11/08/23 | 10:00:01 | 11 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 10/08/23 | 16:25:42 | 10 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 09/08/23 | 08:00:01 | 9 Aug 2023 | | Holding(s) in Company | RNS |
| 07/08/23 | 16:30:01 | 7 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 03/08/23 | 16:15:01 | 3 Aug 2023 | | Holding(s) in Company | RNS |
| 03/08/23 | 15:59:21 | 3 Aug 2023 | | Director/PDMR Shareholding Replacement | RNS |
| 03/08/23 | 10:30:01 | 3 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 03/08/23 | 10:30:01 | 3 Aug 2023 | | Director/PDMR Shareholding | RNS |
| 25/07/23 | 15:43:17 | 25 Jul 2023 | | Holding(s) in Company | RNS |
| 24/07/23 | 10:00:01 | 24 Jul 2023 | | Director Declaration | RNS |
| 21/07/23 | 10:23:03 | 21 Jul 2023 | | Director/PDMR Shareholding | RNS |
| 20/07/23 | 13:10:13 | 20 Jul 2023 | | Result of AGM | RNS |
| 12/07/23 | 16:00:01 | 12 Jul 2023 | | Director/PDMR Shareholding | RNS |
| 10/07/23 | 07:00:06 | 10 Jul 2023 | | Holding(s) in Company | RNS |
| 05/07/23 | 08:00:01 | 5 Jul 2023 | | Holding(s) in Company | RNS |
| 29/06/23 | 08:00:01 | 29 Jun 2023 | | Holding(s) in Company | RNS |
| 27/06/23 | 07:00:03 | 27 Jun 2023 | | Johnson Matthey: Catalyst Technologies seminar | RNS |
| 23/06/23 | 16:37:41 | 23 Jun 2023 | | Holding(s) in Company | RNS |
| 22/06/23 | 18:23:11 | 22 Jun 2023 | | Holding(s) in Company | RNS |
| 22/06/23 | 12:57:58 | 22 Jun 2023 | | Director/PDMR Shareholding | RNS |
| 20/06/23 | 16:29:26 | 20 Jun 2023 | | Holding(s) in Company | RNS |
| 14/06/23 | 17:16:30 | 14 Jun 2023 | | Holding(s) in Company | RNS |
| 14/06/23 | 09:43:02 | 14 Jun 2023 | | Holding(s) in Company | RNS |
