| 8th Jun 2020 7:00 am | RNS | Holdings in Company | 
                                                                            
                                            | 5th Jun 2020 2:00 pm | RNS | Price Monitoring Extension | 
                                                                            
                                            | 5th Jun 2020 9:02 am | RNS | CORRECTION: Director/PDMR's Dealing | 
                                                                            
                                            | 5th Jun 2020 7:00 am | RNS | Director/PDMR's Dealing | 
                                                                            
                                            | 4th Jun 2020 7:00 am | RNS | Trading Update for 12 months to 31 May 2020 | 
                                                                            
                                            | 2nd Jun 2020 4:09 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 29th May 2020 2:40 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 29th May 2020 7:00 am | RNS | Notice of Trading Update | 
                                                                            
                                            | 28th May 2020 11:06 am | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 28th May 2020 11:00 am | RNS | Price Monitoring Extension | 
                                                                            
                                            | 28th May 2020 7:00 am | RNS | Contract with Roche to Profile Autoantibodies | 
                                                                            
                                            | 21st May 2020 7:00 am | RNS | EarlyCDT Lung Partnership Contract Signed | 
                                                                            
                                            | 14th May 2020 7:00 am | RNS | Featured Presentation at ASCO 2020 Virtual Meeting | 
                                                                            
                                            | 12th May 2020 7:00 am | RNS | Drug Development Collaboration Agreement Signed | 
                                                                            
                                            | 6th May 2020 8:56 am | RNS | PDMR Dealing | 
                                                                            
                                            | 4th May 2020 5:08 pm | RNS | Directorate Change | 
                                                                            
                                            | 1st May 2020 10:32 am | RNS | Grant of Options and PDMR notification | 
                                                                            
                                            | 24th Apr 2020 3:59 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 7th Apr 2020 11:41 am | RNS | PDMR Dealing | 
                                                                            
                                            | 1st Apr 2020 10:31 am | RNS | PDMR Dealing | 
                                                                            
                                            | 25th Mar 2020 12:42 pm | RNS | PDMR Dealing | 
                                                                            
                                            | 20th Mar 2020 2:09 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 18th Mar 2020 5:42 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 18th Mar 2020 12:19 pm | RNS | PDMR Dealing | 
                                                                            
                                            | 17th Mar 2020 10:24 am | RNS | NICE concludes review of EarlyCDT Lung | 
                                                                            
                                            | 13th Mar 2020 11:42 am | RNS | Issue of Equity | 
                                                                            
                                            | 12th Mar 2020 6:31 pm | RNS | PDMR / PCA Dealings | 
                                                                            
                                            | 4th Mar 2020 7:00 am | RNS | US Commercial Launch | 
                                                                            
                                            | 2nd Mar 2020 3:35 pm | RNS | Director/PDMR's Dealing | 
                                                                            
                                            | 21st Feb 2020 7:00 am | RNS | ‘Winning in Business in Spain’ Award | 
                                                                            
                                            | 18th Feb 2020 11:06 am | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 18th Feb 2020 11:00 am | RNS | Price Monitoring Extension | 
                                                                            
                                            | 14th Feb 2020 4:41 pm | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 14th Feb 2020 4:35 pm | RNS | Price Monitoring Extension | 
                                                                            
                                            | 14th Feb 2020 11:55 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 14th Feb 2020 11:05 am | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 14th Feb 2020 11:00 am | RNS | Price Monitoring Extension | 
                                                                            
                                            | 12th Feb 2020 7:00 am | RNS | Half Year Report | 
                                                                            
                                            | 28th Jan 2020 7:00 am | RNS | Lung Test More Cost Effective Compared to CT | 
                                                                            
                                            | 27th Jan 2020 7:00 am | RNS | Notice of Capital Markets Update |