Director/PDMR Shareholding

Announcement of Director's interests in securities by Alliance Trust PLC                                          
                                                                                                                  
Director's interests in securities                                                                                
                                                                                                                  
Name of Company                                    Alliance Trust PLC                                             
                                                                                                                  
Name of Director                                   Lesley Knox                                                    
                                                                                                                  
Type of Transaction                                Increase in beneficial interest following purchase of shares   
                                                   (within ISA pursuant to regular standing instruction).         
                                                                                                                  
Reason for Notification                            A transaction required to be notified in accordance with DTR   
                                                   3.1.4R(1) (a)                                                  
                                                                                                                  
Class of Security                                  Ordinary 2.5p shares                                           
                                                                                                                  
Name of registered holder                          Alliance Trust Savings Nominees Limited                        
                                                                                                                  
Number of shares                                   184                                                            
                                                                                                                  
Price per share                                    £3.1103                                                        
                                                                                                                  
Date and place of transaction                      10 September 2008. UK.                                         
                                                                                                                  
Date Company Notified                              11 September 2008.                                             
                                                                                                                  
Total share interests following this information:  130,590                                                        
                                                                                                                  
Total percentage of issued class                   0.019% (all interests)                                         
                                                                                                                  
This notification does not relate to dealings by persons otherwise connected                                      
with the named director.                                                                                          
                                                                                                                  
------------------------------------------------------------------------------------------------------------------
                                                                                                                  
Announcement of Director's interests in securities by Alliance Trust PLC                                          
                                                                                                                  
Director's interests in securities                                                                                
                                                                                                                  
Name of Company                                    Alliance Trust PLC                                             
                                                                                                                  
Name of Director                                   Katherine Garrett-Cox                                          
                                                                                                                  
Type of Transaction                                Increase in beneficial interest following purchase of shares   
                                                   (within Select SIPP pursuant to regular standing instruction). 
                                                                                                                  
Reason for Notification                            A transaction required to be notified in accordance with DTR   
                                                   3.1.4R(1) (a)                                                  
                                                                                                                  
Class of Security                                  Ordinary 2.5p shares                                           
                                                                                                                  
Name of registered holder                          Alliance Trust Savings Nominees Limited                        
                                                                                                                  
Number of shares                                   1,614                                                          
                                                                                                                  
Price per share                                    £3.1103                                                        
                                                                                                                  
Date and place of transaction                      10 September 2008. UK.                                         
                                                                                                                  
Date Company Notified                              11 September 2008.                                             
                                                                                                                  
Total share interests following this information:                                                                 
                                                                                                                  
Beneficially Owned (including self, connected      28,501                                                         
persons and Share Incentive                                                                                       
                                                                                                                  
Plan excluding Employee Benefit Trust)                                                                            
                                                                                                                  
Beneficial interest in shares held for director by 132,666                                                        
Trustee of Employee Benefit Trust                                                                                 
                                                                                                                  
Deemed beneficial interest in shares held for      1,853,654                                                      
company by Trustee of Employee Benefit Trust                                                                      
                                                                                                                  
Total percentage of issued class                   0.300% (all interests)                                         
                                                                                                                  
This notification does not relate to dealings by persons otherwise connected                                      
with the named director.                                                                                          
                                                                                                                  
------------------------------------------------------------------------------------------------------------------
                                                                                                                  
Name of contact                                  Ian Anderson                                                     
                                                                                                                  
Telephone Number                                 [phone]                                               
                                                                                                                  
Date of notification                             11 September 2008