| Date | Source | Headline | |
|---|---|---|---|
| 8th Jul 2025 | 9:55 am | RNS | Holding(s) in Company |
| 1st Jul 2025 | 7:00 am | RNS | Holding(s) in Company |
| 23rd Jun 2025 | 3:51 pm | RNS | Holding(s) in Company |
| 20th Jun 2025 | 3:28 pm | RNS | Director/PDMR Shareholding |
| 17th Jun 2025 | 4:41 pm | RNS | Holding(s) in Company |
| 12th Jun 2025 | 9:00 am | RNS | Annual Financial Report - Part 2 |
| 11th Jun 2025 | 3:50 pm | RNS | Holding(s) in Company |
| 6th Jun 2025 | 4:10 pm | RNS | Holding(s) in Company |
| 5th Jun 2025 | 1:28 pm | RNS | Holding(s) in Company |
| 4th Jun 2025 | 4:38 pm | RNS | Holding(s) in Company |
| 30th May 2025 | 3:38 pm | RNS | Holding(s) in Company |
| 28th May 2025 | 2:46 pm | RNS | Holding(s) in Company |
| 27th May 2025 | 4:36 pm | RNS | Holding(s) in Company |
| 27th May 2025 | 4:24 pm | RNS | Holding(s) in Company |
| 27th May 2025 | 7:01 am | RNS | Holding(s) in Company |
| 27th May 2025 | 7:00 am | RNS | Holding(s) in Company |
| 22nd May 2025 | 5:09 pm | RNS | Director/PDMR Shareholding |
| 22nd May 2025 | 4:38 pm | RNS | Holding(s) in Company |
| 22nd May 2025 | 7:01 am | RNS | Johnson Matthey Full Year Results |
| 22nd May 2025 | 7:00 am | RNS | Agreement to sell Catalyst Technologies business |
| 20th May 2025 | 10:35 am | RNS | Holding(s) in Company |
| 19th May 2025 | 4:15 pm | RNS | Holding(s) in Company |
| 19th May 2025 | 7:00 am | RNS | Holding(s) in Company |
| 15th May 2025 | 5:53 pm | RNS | Holding(s) in Company |
| 25th Apr 2025 | 2:43 pm | RNS | Holding(s) in Company |
| 24th Apr 2025 | 3:28 pm | RNS | Holding(s) in Company |
| 24th Apr 2025 | 8:00 am | RNS | Holding(s) in Company |
| 17th Apr 2025 | 3:35 pm | RNS | Director/PDMR Shareholding |
| 26th Mar 2025 | 3:46 pm | RNS | Holding(s) in Company |
| 25th Mar 2025 | 4:50 pm | RNS | Holding(s) in Company |
| 24th Mar 2025 | 3:08 pm | RNS | Holding(s) in Company |
| 21st Mar 2025 | 4:41 pm | RNS | Holding(s) in Company |
| 20th Mar 2025 | 12:24 pm | RNS | Director/PDMR Shareholding |
| 14th Mar 2025 | 4:24 pm | RNS | Holding(s) in Company |
| 13th Mar 2025 | 4:47 pm | RNS | Holding(s) in Company |
| 12th Mar 2025 | 4:11 pm | RNS | Holding(s) in Company |
| 11th Mar 2025 | 4:38 pm | RNS | Holding(s) in Company |
| 11th Mar 2025 | 7:00 am | RNS | Holding(s) in Company |
| 6th Mar 2025 | 5:18 pm | RNS | Holding(s) in Company |
| 5th Mar 2025 | 7:00 am | RNS | Holding(s) in Company |
| 4th Mar 2025 | 4:56 pm | RNS | Holding(s) in Company |
| 3rd Mar 2025 | 5:12 pm | RNS | Holding(s) in Company |
| 24th Feb 2025 | 5:08 pm | RNS | Holding(s) in Company |
| 21st Feb 2025 | 3:40 pm | RNS | Holding(s) in Company |
| 20th Feb 2025 | 2:46 pm | RNS | Holding(s) in Company |
| 20th Feb 2025 | 10:57 am | RNS | Director/PDMR Shareholding |
| 19th Feb 2025 | 2:24 pm | RNS | Holding(s) in Company |
| 13th Feb 2025 | 4:35 pm | RNS | Director/PDMR Shareholding - replacement |
| 13th Feb 2025 | 4:21 pm | RNS | Director/PDMR Shareholding |
| 13th Feb 2025 | 11:19 am | RNS | Director/PDMR Shareholding |
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