| 09/07/25 | 14:53:31 | 9 Jul 2025 | | Holding(s) in Company | RNS |
| 08/07/25 | 07:00:12 | 8 Jul 2025 | | Posting of Circular and Notice of General Meeting | RNS |
| 04/07/25 | 07:00:06 | 4 Jul 2025 | | Placing to raise £2.0 million | RNS |
| 30/06/25 | 07:00:11 | 30 Jun 2025 | | Liver fibrosis breakthrough with Optimer® platform | RNS |
| 25/06/25 | 07:00:08 | 25 Jun 2025 | | Agreement with global life sciences leader | RNS |
| 30/05/25 | 07:00:06 | 30 May 2025 | | Unilever second Optimer development programme | RNS |
| 15/05/25 | 07:01:00 | 15 May 2025 | | Aptamer Announces New Data at ASGCT | RNS |
| 15/05/25 | 07:00:09 | 15 May 2025 | | Optimer licensing agreements and repeat contracts | RNS |
| 06/05/25 | 07:00:14 | 6 May 2025 | | Alzheimer’s test advanced and royalty agreement | RNS |
| 30/04/25 | 07:00:06 | 30 Apr 2025 | | Licensing agreed for Optimer as vaccine adjuvant | RNS |
| 29/04/25 | 07:00:12 | 29 Apr 2025 | | Aptamer Presenting at ASGCT Annual Meeting | RNS |
| 24/04/25 | 07:00:13 | 24 Apr 2025 | | New Corporate Presentation and Investor Factsheet | RNS |
| 11/03/25 | 07:00:08 | 11 Mar 2025 | | Interim Results | RNS |
| 27/02/25 | 12:50:25 | 27 Feb 2025 | | TR-1: Standard form notification of major holdings | RNS |
| 25/02/25 | 07:01:00 | 25 Feb 2025 | | Block Listing Interim Review | RNS |
| 25/02/25 | 07:00:10 | 25 Feb 2025 | | Notice of Results and Investor Presentation | RNS |
| 28/01/25 | 14:56:14 | 28 Jan 2025 | | Issue of Equity in lieu of Director fees | RNS |
| 28/01/25 | 07:00:04 | 28 Jan 2025 | | Half Year Trading Update | RNS |
| 13/01/25 | 11:40:04 | 13 Jan 2025 | | Notification of dealings by a director/PDMR | RNS |
| 30/12/24 | 07:00:04 | 30 Dec 2024 | | Holding(s) in Company | RNS |
| 19/12/24 | 16:44:27 | 19 Dec 2024 | | Notification of dealings by a director/PDMR | RNS |
| 19/12/24 | 07:00:06 | 19 Dec 2024 | | New Development Contract | RNS |
| 18/12/24 | 10:53:55 | 18 Dec 2024 | | TR-1: Standard form notification of major holdings | RNS |
| 16/12/24 | 11:28:20 | 16 Dec 2024 | | Notification of dealings by a director/PDMR | RNS |
| 12/12/24 | 07:00:07 | 12 Dec 2024 | | Holding(s) in Company | RNS |
| 09/12/24 | 15:30:38 | 9 Dec 2024 | | Notification of dealings by a director/PDMR | RNS |
| 09/12/24 | 13:47:56 | 9 Dec 2024 | | Notification of dealings by a director/PDMR | RNS |
| 09/12/24 | 07:00:07 | 9 Dec 2024 | | Grant of Options and Director Fee Shares | RNS |
| 06/12/24 | 07:00:04 | 6 Dec 2024 | | New Scientific Advisory Board Members | RNS |
| 05/12/24 | 07:00:20 | 5 Dec 2024 | | Technical Update | RNS |
| 04/12/24 | 07:00:07 | 4 Dec 2024 | | Investor Webinar | RNS |
| 29/11/24 | 11:05:09 | 29 Nov 2024 | | Results of 2024 Annual General Meeting | RNS |
| 29/11/24 | 07:00:05 | 29 Nov 2024 | | AGM Statement | RNS |
| 07/11/24 | 07:00:06 | 7 Nov 2024 | | Agreement extended with genetic medicines customer | RNS |
| 06/11/24 | 07:00:06 | 6 Nov 2024 | | Commercial Trading Update | RNS |
| 05/11/24 | 07:00:08 | 5 Nov 2024 | | Posting of Annual Report and Notice of AGM | RNS |
| 22/10/24 | 07:00:05 | 22 Oct 2024 | | Full Year Results for the 12mths to 30 June 2024 | RNS |
| 17/10/24 | 07:00:08 | 17 Oct 2024 | | Notice of Results and Investor Presentation | RNS |
| 16/09/24 | 07:00:09 | 16 Sept 2024 | | Director Appointment | RNS |
| 03/09/24 | 07:00:08 | 3 Sept 2024 | | Aptamer extends contract with Unilever | RNS |
| 27/08/24 | 07:00:13 | 27 Aug 2024 | | Block listing Interim Review | RNS |
| 20/08/24 | 14:26:39 | 20 Aug 2024 | | Holding(s) in Company | RNS |
| 16/08/24 | 13:04:55 | 16 Aug 2024 | | TR-1: Standard form notification of major holdings | RNS |
| 14/08/24 | 11:34:08 | 14 Aug 2024 | | TR-1: Standard form notification of major holdings | RNS |
| 13/08/24 | 12:57:04 | 13 Aug 2024 | | Result of General Meeting and Board Changes | RNS |
| 01/08/24 | 16:33:46 | 1 Aug 2024 | | Supplementary Conditional Placing for £60,000 | RNS |
| 24/07/24 | 18:11:26 | 24 Jul 2024 | | Posting of Circular and Notice of General Meeting | RNS |
| 24/07/24 | 12:37:24 | 24 Jul 2024 | | Fundraise to Raise £2.83 million | RNS |
| 08/07/24 | 07:05:00 | 8 Jul 2024 | | Update on progress in Unilever partnership | RNS |
| 08/07/24 | 07:00:10 | 8 Jul 2024 | | Trading Update | RNS |
