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                                  Katherine Garrett-Cox                                           
                                                                                                                  
Type of Transaction                               Increase in beneficial interest following purchase of shares    
                                                  (within 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                                  187                                                             
                                                                                                                  
Price per share                                   £2.785                                                          
                                                                                                                  
Date and place of transaction                     23 July 2009. UK.                                               
                                                                                                                  
Date Company Notified                             24 July 2009.                                                   
                                                                                                                  
Total share interests following this information:                                                                 
                                                                                                                  
Beneficially Owned (including self, connected     59,718                                                          
persons and Share Incentive                                                                                       
                                                                                                                  
Plan excluding Employee Benefit Trust)                                                                            
                                                                                                                  
Beneficial interest in shares held for director   160,516                                                         
by Trustee of Employee Benefit Trust                                                                              
                                                                                                                  
Deemed beneficial interest in shares held for     1,770,197                                                       
company by Trustee of Employee Benefit Trust                                                                      
                                                                                                                  
Total percentage of issued class                  0.2962% (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                              24 July 2009