The following notification is made under article 19 of the Market Abuse
    Regulation

    1    Details of the person discharging managerial responsibilities/person closely      
         associated                                                                        
                                                                                           
    a)   Name                    John Hamer                                                
                                                                                           
    2    Reason for the notification                                                       
                                                                                           
    a)   Position/status         Chairman                                                  
                                                                                           
    b)   Initial notification/   Initial                                                   
         Amendment                                                                         
                                                                                           
    3    Details of the issuer, emission allowance market participant, auction platform,   
         auctioneer or auction monitor                                                     
                                                                                           
    a)   Name                    Fidessa group plc                                         
                                                                                           
    b)   LEI                     213800691ANM6EZWOH75                                      
                                                                                           
    4    Details of the transaction(s): section to be repeated for (i) each type of        
         instrument; (ii) each type of transaction; (iii) each date; and (iv) each place   
         where transactions have been conducted                                            
                                                                                           
    a)   Description of the      10p Ordinary Shares                                       
         financial instrument,   GB0007590234                                              
         type of instrument                                                                
         Identification code                                                               
                                                                                           
    b)   Nature of the           Purchase of ordinary shares of 10p each in Fidessa group  
         transaction             plc by the Fidessa group plc Share Incentive Plan.        
                                 In addition, the individual has been granted matching     
                                 shares equal to the number of shares purchased in the     
                                 transaction. The matching shares will vest on the third   
                                 anniversary of the date of the award subject to continued 
                                 employment for those three years.                         
                                                                                           
    c)   Price(s) and volume(s)  Price (s)                    Volume(s)                    
                                                                                           
                                 £24.180                      5                            
                                                                                           
                                 0                            5                            
                                                                                           
    d)   Aggregated information  Aggregated Volume            10                           
                                                                                           
                                 Price                        £12.09                       
                                                                                           
    e)   Date of the transaction 2017-06-22                                                
                                                                                           
    f)   Place of the            London Stock Exchange: LON                                
         transaction                                                                       

       

    1   Details of the person discharging managerial responsibilities/person closely       
        associated                                                                         
                                                                                           
    a)  Name                    Chris Aspinwall                                            
                                                                                           
    2   Reason for the notification                                                        
                                                                                           
    a)  Position/status         Chief Executive                                            
                                                                                           
    b)  Initial notification/   Initial                                                    
        Amendment                                                                          
                                                                                           
    3   Details of the issuer, emission allowance market participant, auction platform,    
        auctioneer or auction monitor                                                      
                                                                                           
    a)  Name                    Fidessa group plc                                          
                                                                                           
    b)  LEI                     213800691ANM6EZWOH75                                       
                                                                                           
    4   Details of the transaction(s): section to be repeated for (i) each type of         
        instrument; (ii) each type of transaction; (iii) each date; and (iv) each place    
        where transactions have been conducted                                             
                                                                                           
    a)  Description of the      10p Ordinary Shares                                        
        financial instrument,   GB0007590234                                               
        type of instrument                                                                 
        Identification code                                                                
                                                                                           
    b)  Nature of the           Purchase of ordinary shares of 10p each in Fidessa group   
        transaction             plc by the Fidessa group plc Share Incentive Plan.         
                                In addition, the individual has been granted matching      
                                shares equal to the number of shares purchased in the      
                                transaction. The matching shares will vest on the third    
                                anniversary of the date of the award subject to continued  
                                employment for those three years.                          
                                                                                           
    c)  Price(s) and volume(s)  Price (s)                       Volume(s)                  
                                                                                           
                                £24.180                         5                          
                                                                                           
                                0                               5                          
                                                                                           
    d)  Aggregated information  Aggregated Volume               10                         
                                                                                           
                                Price                           £12.09                     
                                                                                           
    e)  Date of the transaction 2017-06-22                                                 
                                                                                           
    f)  Place of the            London Stock Exchange: LON                                 
        transaction                                                                        

       

    1   Details of the person discharging managerial responsibilities/person closely       
        associated                                                                         
                                                                                           
    a)  Name                    Andy Skelton                                               
                                                                                           
    2   Reason for the notification                                                        
                                                                                           
    a)  Position/status         Chief Financial Officer                                    
                                                                                           
    b)  Initial notification/   Initial                                                    
        Amendment                                                                          
                                                                                           
    3   Details of the issuer, emission allowance market participant, auction platform,    
        auctioneer or auction monitor                                                      
                                                                                           
    a)  Name                    Fidessa group plc                                          
                                                                                           
    b)  LEI                     213800691ANM6EZWOH75                                       
                                                                                           
    4   Details of the transaction(s): section to be repeated for (i) each type of         
        instrument; (ii) each type of transaction; (iii) each date; and (iv) each place    
        where transactions have been conducted                                             
                                                                                           
    a)  Description of the      10p Ordinary Shares                                        
        financial instrument,   GB0007590234                                               
        type of instrument                                                                 
        Identification code                                                                
                                                                                           
    b)  Nature of the           Purchase of ordinary shares of 10p each in Fidessa group   
        transaction             plc by the Fidessa group plc Share Incentive Plan.         
                                In addition, the individual has been granted matching      
                                shares equal to the number of shares purchased in the      
                                transaction. The matching shares will vest on the third    
                                anniversary of the date of the award subject to continued  
                                employment for those three years.                          
                                                                                           
    c)  Price(s) and volume(s)  Price (s)                       Volume(s)                  
                                                                                           
                                £24.180                         5                          
                                                                                           
                                0                               5                          
                                                                                           
    d)  Aggregated information  Aggregated Volume               10                         
                                                                                           
                                Price                           £12.09                     
                                                                                           
    e)  Date of the transaction 2017-06-22                                                 
                                                                                           
    f)  Place of the            London Stock Exchange: LON                                 
        transaction                                                                        

       

    1   Details of the person discharging managerial responsibilities/person closely       
        associated                                                                         
                                                                                           
    a)  Name                    Steve Barrow                                               
                                                                                           
    2   Reason for the notification                                                        
                                                                                           
    a)  Position/status         Global Head of Sales (PDMR)                                
                                                                                           
    b)  Initial notification/   Initial                                                    
        Amendment                                                                          
                                                                                           
    3   Details of the issuer, emission allowance market participant, auction platform,    
        auctioneer or auction monitor                                                      
                                                                                           
    a)  Name                    Fidessa group plc                                          
                                                                                           
    b)  LEI                     213800691ANM6EZWOH75                                       
                                                                                           
    4   Details of the transaction(s): section to be repeated for (i) each type of         
        instrument; (ii) each type of transaction; (iii) each date; and (iv) each place    
        where transactions have been conducted                                             
                                                                                           
    a)  Description of the      10p Ordinary Shares                                        
        financial instrument,   GB0007590234                                               
        type of instrument                                                                 
        Identification code                                                                
                                                                                           
    b)  Nature of the           Purchase of ordinary shares of 10p each in Fidessa group   
        transaction             plc by the Fidessa group plc Share Incentive Plan.         
                                In addition, the individual has been granted matching      
                                shares equal to the number of shares purchased in the      
                                transaction. The matching shares will vest on the third    
                                anniversary of the date of the award subject to continued  
                                employment for those three years.                          
                                                                                           
    c)  Price(s) and volume(s)  Price (s)                       Volume(s)                  
                                                                                           
                                £24.180                         5                          
                                                                                           
                                0                               5                          
                                                                                           
    d)  Aggregated information  Aggregated Volume               10                         
                                                                                           
                                Price                           £12.09                     
                                                                                           
    e)  Date of the transaction 2017-06-22                                                 
                                                                                           
    f)  Place of the            London Stock Exchange: LON                                 
        transaction                                                                        

       

    1   Details of the person discharging managerial responsibilities/person closely       
        associated                                                                         
                                                                                           
    a)  Name                    Wayne Coomey                                               
                                                                                           
    2   Reason for the notification                                                        
                                                                                           
    a)  Position/status         Global Head of Human Resources (PDMR)                      
                                                                                           
    b)  Initial notification/   Initial                                                    
        Amendment                                                                          
                                                                                           
    3   Details of the issuer, emission allowance market participant, auction platform,    
        auctioneer or auction monitor                                                      
                                                                                           
    a)  Name                    Fidessa group plc                                          
                                                                                           
    b)  LEI                     213800691ANM6EZWOH75                                       
                                                                                           
    4   Details of the transaction(s): section to be repeated for (i) each type of         
        instrument; (ii) each type of transaction; (iii) each date; and (iv) each place    
        where transactions have been conducted                                             
                                                                                           
    a)  Description of the      10p Ordinary Shares                                        
        financial instrument,   GB0007590234                                               
        type of instrument                                                                 
        Identification code                                                                
                                                                                           
    b)  Nature of the           Purchase of ordinary shares of 10p each in Fidessa group   
        transaction             plc by the Fidessa group plc Share Incentive Plan.         
                                In addition, the individual has been granted matching      
                                shares equal to the number of shares purchased in the      
                                transaction. The matching shares will vest on the third    
                                anniversary of the date of the award subject to continued  
                                employment for those three years.                          
                                                                                           
    c)  Price(s) and volume(s)  Price (s)                       Volume(s)                  
                                                                                           
                                £24.180                         5                          
                                                                                           
                                0                               5                          
                                                                                           
    d)  Aggregated information  Aggregated Volume               10                         
                                                                                           
                                Price                           £12.09                     
                                                                                           
    e)  Date of the transaction 2017-06-22                                                 
                                                                                           
    f)  Place of the            London Stock Exchange: LON                                 
        transaction                                                                        

       

    1   Details of the person discharging managerial responsibilities/person closely       
        associated                                                                         
                                                                                           
    a)  Name                    Jonathan Waltho                                            
                                                                                           
    2   Reason for the notification                                                        
                                                                                           
    a)  Position/status         Group General Counsel (PDMR)                               
                                                                                           
    b)  Initial notification/   Initial                                                    
        Amendment                                                                          
                                                                                           
    3   Details of the issuer, emission allowance market participant, auction platform,    
        auctioneer or auction monitor                                                      
                                                                                           
    a)  Name                    Fidessa group plc                                          
                                                                                           
    b)  LEI                     213800691ANM6EZWOH75                                       
                                                                                           
    4   Details of the transaction(s): section to be repeated for (i) each type of         
        instrument; (ii) each type of transaction; (iii) each date; and (iv) each place    
        where transactions have been conducted                                             
                                                                                           
    a)  Description of the      10p Ordinary Shares                                        
        financial instrument,   GB0007590234                                               
        type of instrument                                                                 
        Identification code                                                                
                                                                                           
    b)  Nature of the           Purchase of ordinary shares of 10p each in Fidessa group   
        transaction             plc by the Fidessa group plc Share Incentive Plan.         
                                In addition, the individual has been granted matching      
                                shares equal to the number of shares purchased in the      
                                transaction. The matching shares will vest on the third    
                                anniversary of the date of the award subject to continued  
                                employment for those three years.                          
                                                                                           
    c)  Price(s) and volume(s)  Price (s)                       Volume(s)                  
                                                                                           
                                £24.180                         5                          
                                                                                           
                                0                               5                          
                                                                                           
    d)  Aggregated information  Aggregated Volume               10                         
                                                                                           
                                Price                           £12.09                     
                                                                                           
    e)  Date of the transaction 2017-06-22                                                 
                                                                                           
    f)  Place of the            London Stock Exchange: LON                                 
        transaction