| 18th Apr 2016 7:00 am | RNS | Change of Adviser | 
                                                                            
                                            | 7th Apr 2016 7:00 am | RNS | Notice of Results | 
                                                                            
                                            | 24th Mar 2016 12:29 pm | RNS | Additional Listing | 
                                                                            
                                            | 24th Mar 2016 8:54 am | RNS | Additional Listing | 
                                                                            
                                            | 15th Mar 2016 7:00 am | RNS | Horizon Discovery hosts symposium on gene editing | 
                                                                            
                                            | 2nd Mar 2016 7:00 am | RNS | Horizon Discovery Group forms Immuno-oncology JV | 
                                                                            
                                            | 26th Jan 2016 4:04 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 22nd Jan 2016 1:21 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 18th Jan 2016 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 15th Jan 2016 4:14 pm | RNS | Additional Listing | 
                                                                            
                                            | 12th Jan 2016 10:09 am | RNS | Additional Listing | 
                                                                            
                                            | 17th Dec 2015 9:52 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 11th Dec 2015 9:23 am | RNS | Additional Listing | 
                                                                            
                                            | 25th Nov 2015 7:00 am | RNS | Three diagnostic agreements worth an initial $3.3m | 
                                                                            
                                            | 13th Nov 2015 7:00 am | RNS | Director Dealings | 
                                                                            
                                            | 12th Nov 2015 1:30 pm | RNS | Board Change | 
                                                                            
                                            | 12th Nov 2015 7:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 12th Nov 2015 7:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 6th Nov 2015 3:51 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 29th Oct 2015 7:00 am | RNS | Total Voting Rights | 
                                                                            
                                            | 28th Oct 2015 7:00 am | RNS | New E-Commerce Platform and UK Headquarters | 
                                                                            
                                            | 21st Oct 2015 8:48 am | RNS | Additional Listing | 
                                                                            
                                            | 15th Oct 2015 5:44 pm | RNS | Grant of options under Long Term Incentive Plan | 
                                                                            
                                            | 7th Oct 2015 4:00 pm | RNS | Issue of Equity | 
                                                                            
                                            | 7th Oct 2015 7:00 am | RNS | In-licensing agreement with Servier | 
                                                                            
                                            | 22nd Sep 2015 7:00 am | RNS | Half Yearly Report | 
                                                                            
                                            | 18th Sep 2015 10:17 am | RNS | Additional Listing | 
                                                                            
                                            | 16th Sep 2015 7:00 am | RNS | Cell Line Licensing Agreement with LakePharma Inc | 
                                                                            
                                            | 9th Sep 2015 7:00 am | RNS | HZD & Abcam plc Sign License & Supply Agreement | 
                                                                            
                                            | 3rd Sep 2015 7:00 am | RNS | Cancer Research Collaboration with Redx Pharma | 
                                                                            
                                            | 3rd Sep 2015 7:00 am | RNS | Cancer Research Collaboration | 
                                                                            
                                            | 1st Sep 2015 11:49 am | RNS | Additional Listing | 
                                                                            
                                            | 1st Sep 2015 7:04 am | RNS | Notice of Interim Results | 
                                                                            
                                            | 27th Jul 2015 7:00 am | RNS | HZD To Invest c£10M In Cancer R&D | 
                                                                            
                                            | 20th Jul 2015 7:00 am | RNS | Trading update | 
                                                                            
                                            | 17th Jul 2015 12:34 pm | RNS | Additional Listing | 
                                                                            
                                            | 19th Jun 2015 11:28 am | RNS | Result of AGM | 
                                                                            
                                            | 26th May 2015 4:46 pm | RNS | 2014 Annual Report and Accounts & AGM Notification | 
                                                                            
                                            | 22nd May 2015 3:28 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 21st May 2015 6:04 pm | RNS | Holding(s) in Company |