| 08/10/20 | 07:00:04 | 8 Oct 2020 | | US Patent Allowance: SDC-1802 TYK2/JAK1 Inhibitor | RNS |
| 12/08/20 | 07:00:05 | 12 Aug 2020 | | Details of Investor Presentation | RNS |
| 11/08/20 | 07:00:06 | 11 Aug 2020 | | Trading Statement | RNS |
| 29/07/20 | 14:05:51 | 29 Jul 2020 | | Second Price Monitoring Extn | RNS |
| 29/07/20 | 14:00:38 | 29 Jul 2020 | | Price Monitoring Extension | RNS |
| 24/07/20 | 07:00:03 | 24 Jul 2020 | | Research Update | RNS |
| 01/07/20 | 07:00:04 | 1 Jul 2020 | | Update on Deferred Salaries and Issue of Equity | RNS |
| 03/06/20 | 11:06:05 | 3 Jun 2020 | | Second Price Monitoring Extn | RNS |
| 03/06/20 | 11:00:53 | 3 Jun 2020 | | Price Monitoring Extension | RNS |
| 03/06/20 | 07:00:03 | 3 Jun 2020 | | Successful Fundraising | RNS |
| 02/06/20 | 16:31:01 | 2 Jun 2020 | | PrimaryBid.com Offer | RNS |
| 02/06/20 | 16:30:01 | 2 Jun 2020 | | Placing to raise £718,500 | RNS |
| 27/05/20 | 07:00:08 | 27 May 2020 | | Sareum to Present at BIO Digital 2020 | RNS |
| 01/05/20 | 07:00:06 | 1 May 2020 | | BioTrinity Presentation Available Online | RNS |
| 28/04/20 | 07:00:07 | 28 Apr 2020 | | Company Presentation at BioTrinity | RNS |
| 20/04/20 | 11:00:20 | 20 Apr 2020 | | Price Monitoring Extension | RNS |
| 17/04/20 | 11:05:42 | 17 Apr 2020 | | Second Price Monitoring Extn | RNS |
| 17/04/20 | 11:00:44 | 17 Apr 2020 | | Price Monitoring Extension | RNS |
| 14/04/20 | 11:06:24 | 14 Apr 2020 | | Second Price Monitoring Extn | RNS |
| 14/04/20 | 11:01:05 | 14 Apr 2020 | | Price Monitoring Extension | RNS |
| 26/03/20 | 07:00:02 | 26 Mar 2020 | | Global Licensing of FL3+Aurora Programme | RNS |
| 26/03/20 | 07:00:02 | 26 Mar 2020 | | Half-year Report | RNS |
| 12/03/20 | 07:00:01 | 12 Mar 2020 | | Publication: new SRA737 combinations in cancer | RNS |
| 17/12/19 | 13:36:03 | 17 Dec 2019 | | Result of AGM | RNS |
| 17/12/19 | 07:00:11 | 17 Dec 2019 | | AGM Statement | RNS |
| 20/11/19 | 07:00:08 | 20 Nov 2019 | | Notice of AGM | RNS |
| 05/11/19 | 10:56:16 | 5 Nov 2019 | | Sareum notes Sierra Oncology Q3 2019 results | RNS |
| 30/10/19 | 07:00:02 | 30 Oct 2019 | | Research Update - SDC-1802 anti-cancer poster | RNS |
| 17/10/19 | 08:00:05 | 17 Oct 2019 | | Research Update - AACR-NCI-EORTC abstract | RNS |
| 15/10/19 | 08:00:04 | 15 Oct 2019 | | Final Results | RNS |
| 07/10/19 | 08:00:11 | 7 Oct 2019 | | Notice of Full Year Results | RNS |
| 27/09/19 | 08:00:04 | 27 Sept 2019 | | Research Update - TYK2/JAK1 cancer programme | RNS |
| 27/08/19 | 08:00:12 | 27 Aug 2019 | | Trading Statement | RNS |
| 16/08/19 | 08:00:05 | 16 Aug 2019 | | Change of Adviser | RNS |
| 08/08/19 | 15:17:20 | 8 Aug 2019 | | Sareum notes Sierra Q2 results | RNS |
| 29/07/19 | 17:29:14 | 29 Jul 2019 | | Additional disclosure concerning Michael Owen | RNS |
| 28/06/19 | 08:00:04 | 28 Jun 2019 | | Additional Funds Raised | RNS |
| 27/06/19 | 14:50:43 | 27 Jun 2019 | | Sierra seeks strategic options for SRA737 | RNS |
| 26/06/19 | 08:00:06 | 26 Jun 2019 | | Successful Fundraising | RNS |
| 25/06/19 | 17:31:05 | 25 Jun 2019 | | PrimaryBid.com Offer | RNS |
| 25/06/19 | 17:30:02 | 25 Jun 2019 | | Placing to progress TYK2/JAK1 programmes | RNS |
| 13/06/19 | 08:00:15 | 13 Jun 2019 | | Portfolio Update | RNS |
| 03/06/19 | 17:00:02 | 3 Jun 2019 | | Key takeaways from SRA737 webcast at ASCO | RNS |
| 03/06/19 | 12:05:47 | 3 Jun 2019 | | Second Price Monitoring Extn | RNS |
| 03/06/19 | 12:00:32 | 3 Jun 2019 | | Price Monitoring Extension | RNS |
| 03/06/19 | 08:00:07 | 3 Jun 2019 | | Positive SRA737 data presented at ASCO | RNS |
| 16/05/19 | 08:00:04 | 16 May 2019 | | ASCO abstracts for SRA737 published | RNS |
| 08/05/19 | 13:41:08 | 8 May 2019 | | Sareum notes Sierra Oncology Q1 2019 Results | RNS |
| 23/04/19 | 08:00:06 | 23 Apr 2019 | | SRA737 Phase I/IIa data to be presented at ASCO | RNS |
| 02/04/19 | 08:00:17 | 2 Apr 2019 | | Preclinical Data for SRA737 Presented at AACR 2019 | RNS |
