| 24th Jul 2019 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 8th Jul 2019 7:00 am | RNS | SMARTvector platform supports Celyad IND filing | 
                                                                            
                                            | 5th Jul 2019 8:01 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 3rd Jul 2019 12:07 pm | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 3rd Jul 2019 12:02 pm | RNS | Price Monitoring Extension | 
                                                                            
                                            | 1st Jul 2019 4:29 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 25th Jun 2019 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 19th Jun 2019 6:28 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 19th Jun 2019 6:17 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 18th Jun 2019 1:16 pm | RNS | Result of AGM | 
                                                                            
                                            | 7th Jun 2019 1:17 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 21st May 2019 12:05 pm | RNS | Annual Report and Notice of Annual General Meeting | 
                                                                            
                                            | 29th Apr 2019 7:00 am | RNS | Full Year Results for Year Ending 31 December 2018 | 
                                                                            
                                            | 25th Apr 2019 7:00 am | RNS | Holdings in Company | 
                                                                            
                                            | 1st Apr 2019 12:33 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 20th Mar 2019 7:00 am | RNS | Notice of Full Year Results | 
                                                                            
                                            | 15th Mar 2019 5:44 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 11th Mar 2019 7:00 am | RNS | Presentation at 2019 Cowen Health Care Conference | 
                                                                            
                                            | 1st Mar 2019 5:46 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 7th Feb 2019 12:22 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 5th Feb 2019 7:00 am | RNS | Holdings in Company | 
                                                                            
                                            | 4th Feb 2019 11:08 am | RNS | Holdings in Company | 
                                                                            
                                            | 1st Feb 2019 2:56 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 29th Jan 2019 7:00 am | RNS | Appointment of Chief Financial Officer | 
                                                                            
                                            | 29th Jan 2019 7:00 am | RNS | Pre-Close Trading Update | 
                                                                            
                                            | 28th Jan 2019 12:08 pm | RNS | Block listing Interim Review | 
                                                                            
                                            | 28th Jan 2019 7:00 am | RNS | Partnership with Rutgers for new technology | 
                                                                            
                                            | 21st Jan 2019 4:35 pm | RNS | Price Monitoring Extension | 
                                                                            
                                            | 18th Dec 2018 12:07 pm | RNS | Second Price Monitoring Extn | 
                                                                            
                                            | 18th Dec 2018 12:02 pm | RNS | Price Monitoring Extension | 
                                                                            
                                            | 17th Dec 2018 7:00 am | RNS | Exclusive Partnership with C4X Discovery | 
                                                                            
                                            | 10th Dec 2018 12:17 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 12th Nov 2018 10:33 am | RNS | Grant of options | 
                                                                            
                                            | 12th Nov 2018 9:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 12th Nov 2018 7:00 am | RNS | Total Voting Rights | 
                                                                            
                                            | 8th Nov 2018 7:00 am | RNS | Board Change | 
                                                                            
                                            | 7th Nov 2018 7:00 am | RNS | CRISPR Screening Webinar | 
                                                                            
                                            | 18th Oct 2018 7:00 am | RNS | CRISPR Screening Webinar | 
                                                                            
                                            | 17th Oct 2018 7:00 am | RNS | Holdings in Company | 
                                                                            
                                            | 16th Oct 2018 3:29 pm | RNS | Holding(s) in Company |