| 15/12/23 | SPSY | 16:35:00 | 15 Dec 2023 | | SPSY | Exercise of Options and transfer of shares | Spectra Systems Corporation | RNS |
| 04/12/23 | SPSY | 07:00:04 | 4 Dec 2023 | | SPSY | Acquisition of Cartor Holdings Limited | Spectra Systems Corporation | RNS |
| 06/11/23 | SPSY | 16:43:50 | 6 Nov 2023 | | SPSY | TR-1 | Spectra Systems Corporation | RNS |
| 12/10/23 | SPSY | 07:00:10 | 12 Oct 2023 | | SPSY | Largest Central Bank Consumables Order | Spectra Systems Corporation | RNS |
| 25/09/23 | SPSY | 07:00:05 | 25 Sept 2023 | | SPSY | Interim Results for Six Months Ended 30 June 2023 | Spectra Systems Corporation | RNS |
| 06/09/23 | SPSY | 07:00:06 | 6 Sept 2023 | | SPSY | Results for the 6 months ended 30 June 2023 | Spectra Systems Corporation | RNS |
| 07/07/23 | SPSY | 18:01:52 | 7 Jul 2023 | | SPSY | Removal of Regulation S restrictions from shares | Spectra Systems Corporation | RNS |
| 26/06/23 | SPSY | 15:22:13 | 26 Jun 2023 | | SPSY | Annual General Meeting Lack of Quorum | Spectra Systems Corporation | RNS |
| 14/06/23 | SPSY | 07:00:10 | 14 Jun 2023 | | SPSY | Update on Development Contracts | Spectra Systems Corporation | RNS |
| 30/05/23 | SPSY | 07:00:09 | 30 May 2023 | | SPSY | Appointment of Chief Financial Officer | Spectra Systems Corporation | RNS |
| 25/04/23 | SPSY | 07:00:05 | 25 Apr 2023 | | SPSY | Additional Sensor Services Contract Amendment | Spectra Systems Corporation | RNS |
| 24/04/23 | SPSY | 07:00:07 | 24 Apr 2023 | | SPSY | Resignation of Chief Financial Officer | Spectra Systems Corporation | RNS |
| 19/04/23 | SPSY | 07:05:01 | 19 Apr 2023 | | SPSY | Removal of Reg S restrictions from common stock | Spectra Systems Corporation | RNS |
| 06/04/23 | SPSY | 07:00:04 | 6 Apr 2023 | | SPSY | Exercise of Options | Spectra Systems Corporation | RNS |
| 31/03/23 | SPSY | 17:14:24 | 31 Mar 2023 | | SPSY | Removal of Reg S restrictions from shares | Spectra Systems Corporation | RNS |
| 21/03/23 | SPSY | 11:44:44 | 21 Mar 2023 | | SPSY | Dividend Record Date | Spectra Systems Corporation | RNS |
| 20/03/23 | SPSY | 07:00:03 | 20 Mar 2023 | | SPSY | Audited results for year ended 31 December 2022 | Spectra Systems Corporation | RNS |
| 16/03/23 | SPSY | 16:35:02 | 16 Mar 2023 | | SPSY | Exercise of Options | Spectra Systems Corporation | RNS |
| 13/03/23 | SPSY | 07:00:09 | 13 Mar 2023 | | SPSY | Notice of Results | Spectra Systems Corporation | RNS |
| 06/03/23 | SPSY | 10:39:16 | 6 Mar 2023 | | SPSY | Removal of Reg S restrictions from common stock | Spectra Systems Corporation | RNS |
| 11/10/22 | SPSY | 18:12:45 | 11 Oct 2022 | | SPSY | Director/PDMR Shareholding | Spectra Systems Corporation | RNS |
| 03/10/22 | SPSY | 07:00:07 | 3 Oct 2022 | | SPSY | Contract Amendment to a Central Bank | Spectra Systems Corporation | RNS |
| 21/09/22 | SPSY | 07:00:03 | 21 Sept 2022 | | SPSY | Exercise of Options | Spectra Systems Corporation | RNS |
| 12/09/22 | SPSY | 07:05:04 | 12 Sept 2022 | | SPSY | Appointment of Non-Executive Director | Spectra Systems Corporation | RNS |
| 12/09/22 | SPSY | 07:00:07 | 12 Sept 2022 | | SPSY | Interim Results for Six Months Ended 30 June 2022 | Spectra Systems Corporation | RNS |
| 16/08/22 | SPSY | 07:00:07 | 16 Aug 2022 | | SPSY | First Banknote Disinfection System Sold | Spectra Systems Corporation | RNS |
| 15/08/22 | SPSY | 07:00:06 | 15 Aug 2022 | | SPSY | New Central Bank Contract Amendment | Spectra Systems Corporation | RNS |
| 28/07/22 | SPSY | 07:00:13 | 28 Jul 2022 | | SPSY | Share Buy-Back | Spectra Systems Corporation | RNS |
| 01/07/22 | SPSY | 14:31:11 | 1 Jul 2022 | | SPSY | Share Buy-Back | Spectra Systems Corporation | RNS |
| 28/06/22 | SPSY | 07:00:07 | 28 Jun 2022 | | SPSY | Share Buy-Back | Spectra Systems Corporation | RNS |
| 15/06/22 | SPSY | 07:00:03 | 15 Jun 2022 | | SPSY | Additional Central Bank Development Revenues | Spectra Systems Corporation | RNS |
| 14/06/22 | SPSY | 07:00:03 | 14 Jun 2022 | | SPSY | Appointment of Chief Financial Officer | Spectra Systems Corporation | RNS |
| 13/06/22 | SPSY | 07:00:07 | 13 Jun 2022 | | SPSY | Update regarding Solaris | Spectra Systems Corporation | RNS |
| 13/06/22 | SPSY | 07:00:05 | 13 Jun 2022 | | SPSY | Annual General Meeting Update | Spectra Systems Corporation | RNS |
| 25/05/22 | SPSY | 07:00:09 | 25 May 2022 | | SPSY | Exercise of Options and Director/PDMR Shareholding | Spectra Systems Corporation | RNS |
| 20/05/22 | SPSY | 08:44:57 | 20 May 2022 | | SPSY | Removal of Regulation S restrictions from shares | Spectra Systems Corporation | RNS |
| 20/05/22 | SPSY | 08:41:42 | 20 May 2022 | | SPSY | Resignation of Chief Financial Officer | Spectra Systems Corporation | RNS |
| 03/05/22 | SPSY | 07:00:13 | 3 May 2022 | | SPSY | Posting of Annual Report & Notice of AGM | Spectra Systems Corporation | RNS |
| 06/04/22 | SPSY | 13:36:06 | 6 Apr 2022 | | SPSY | Removal of Reg S restrictions from common stock | Spectra Systems Corporation | RNS |
| 28/03/22 | SPSY | 07:00:09 | 28 Mar 2022 | | SPSY | Grant of Share Options | Spectra Systems Corporation | RNS |
| 21/03/22 | SPSY | 07:00:09 | 21 Mar 2022 | | SPSY | Results twelve months ended 31 December 2021 | Spectra Systems Corporation | RNS |
| 24/02/22 | SPSY | 07:00:12 | 24 Feb 2022 | | SPSY | Spectra Introduces Covert Polymer Substrate | Spectra Systems Corporation | RNS |
| 24/01/22 | SPSY | 07:00:14 | 24 Jan 2022 | | SPSY | New contract awards | Spectra Systems Corporation | RNS |
| 21/01/22 | SPSY | 07:00:13 | 21 Jan 2022 | | SPSY | Exercise of Options | Spectra Systems Corporation | RNS |
| 06/12/21 | SPSY | 07:00:08 | 6 Dec 2021 | | SPSY | New K-cup Orders in Q4 Exceed Expectations | Spectra Systems Corporation | RNS |
| 02/11/21 | SPSY | 15:37:31 | 2 Nov 2021 | | SPSY | Exercise of Options | Spectra Systems Corporation | RNS |
| 01/11/21 | SPSY | 07:00:14 | 1 Nov 2021 | | SPSY | New Lottery Contract Win | Spectra Systems Corporation | RNS |
| 25/10/21 | SPSY | 16:18:35 | 25 Oct 2021 | | SPSY | Removal of Regulation S restrictions | Spectra Systems Corporation | RNS |
| 11/10/21 | SPSY | 07:00:10 | 11 Oct 2021 | | SPSY | Large Central Bank Order | Spectra Systems Corporation | RNS |
| 27/09/21 | SPSY | 07:00:11 | 27 Sept 2021 | | SPSY | Appointment of Allenby Capital as joint broker | Spectra Systems Corporation | RNS |