| 08/04/26 | 07:00:02 | 8 Apr 2026 | | Cancellation - 450 PLC |
| 07/04/26 | 13:40:39 | 7 Apr 2026 | | Cancellation of Trading |
| 31/03/26 | 15:37:37 | 31 Mar 2026 | | Interim Financial Statements to 31 December 2025 |
| 03/12/25 | 16:35:31 | 3 Dec 2025 | | Result of AGM |
| 10/11/25 | 07:00:10 | 10 Nov 2025 | | Notice of Annual General Meeting |
| 07/10/25 | 07:30:00 | 7 Oct 2025 | | Suspension - 450 Plc |
| 07/10/25 | 07:00:06 | 7 Oct 2025 | | Potential Transaction and Suspension of Trading |
| 02/10/25 | 07:00:02 | 2 Oct 2025 | | Change of Adviser and AIM Rule 17 Disclosures |
| 10/09/25 | 07:00:10 | 10 Sept 2025 | | Annual Financial Report |
| 22/08/25 | 17:00:00 | 22 Aug 2025 | | Board Changes |
| 30/06/25 | 07:00:03 | 30 Jun 2025 | | Change of Nominated Adviser |
| 25/03/25 | 17:00:00 | 25 Mar 2025 | | Interim Financial Statements - 31 December 2024 |
| 23/01/25 | 07:00:06 | 23 Jan 2025 | | Board Changes |
| 12/12/24 | 11:18:54 | 12 Dec 2024 | | Result of AGM |
| 20/11/24 | 16:00:00 | 20 Nov 2024 | | Notice of Annual General Meeting |
| 14/11/24 | 07:00:08 | 14 Nov 2024 | | Annual Financial Report |
| 20/03/24 | 10:15:26 | 20 Mar 2024 | | Interim Financial Statements - 31 December 2023 |
| 05/12/23 | 11:58:53 | 5 Dec 2023 | | Results of Annual General Meeting |
| 03/11/23 | 07:05:49 | 3 Nov 2023 | | Notice of Annual General Meeting |
| 27/09/23 | 07:00:06 | 27 Sept 2023 | | Annual Financial Report |
| 29/03/23 | 13:00:01 | 29 Mar 2023 | | Interim Report for the period ended 31 Dec 2022 |
| 06/12/22 | 13:39:41 | 6 Dec 2022 | | Change of Name to 450 Plc |
| 05/12/22 | 10:00:01 | 5 Dec 2022 | | Results of Annual General Meeting |
| 07/11/22 | 07:00:10 | 7 Nov 2022 | | Waheed Alli appointed Chair of MAC plc |
| 09/09/22 | 07:00:06 | 9 Sept 2022 | | Annual Financial Report |
| 24/05/22 | 07:00:14 | 24 May 2022 | | Appointment of Sanjeev Gandhi as Independent NED |
| 08/04/22 | 07:00:02 | 8 Apr 2022 | | Company Update |
| 31/03/22 | 07:00:07 | 31 Mar 2022 | | Interim Report for the period ended 31 Dec 2021 |
| 17/12/21 | 11:30:01 | 17 Dec 2021 | | Result of AGM |
| 01/12/21 | 07:00:10 | 1 Dec 2021 | | Notice of Annual General Meeting |
| 04/10/21 | 07:00:07 | 4 Oct 2021 | | Annual Financial Report |