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                Change in beneficial interest following the 
                                   merger of the Company and The Second        
                                   Alliance Trust PLC ("2AT") and the exchange 
                                   of shares owned beneficially in 2AT for     
                                   shares owned beneficially in the Company    
                                   following the subdivision of the Company's  
                                   share capital on a ten for one basis        
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1) (a) and DR     
                                   3.1.4(R) (1) (b) [section 324 as extended by
                                   section 328 of the Companies Act 1985 or    
                                   entered into the Company's register in      
                                   accordance with s325(3) or (4)of the        
                                   Companies Act 1985]                         
                                                                               
Class of Security                  Ordinary 2 .5p shares                       
                                                                               
Number of shares                   N/A.                                        
                                                                               
Price per share                    N/A.                                        
                                                                               
Date and place of transaction      N/A. UK.                                    
                                                                               
Date Company Notified              N/A.                                        
                                                                               
Total share interests following    31,019                                      
this information                                                               
                                                                               
Total percentage of issued class   0.005% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of Company                    Alliance Trust PLC                          
                                                                               
Name of Director                   Chris Masters                               
                                                                               
Type of Transaction                Change in beneficial interest following the 
                                   merger of the Company and The Second        
                                   Alliance Trust PLC ("2AT") and the exchange 
                                   of shares owned beneficially in 2AT for     
                                   shares owned beneficially in the Company    
                                   following the subdivision of the Company's  
                                   share capital on a ten for one basis        
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1) (a) and DR     
                                   3.1.4(R) (1) (b) [section 324 as extended by
                                   section 328 of the Companies Act 1985 or    
                                   entered into the Company's register in      
                                   accordance with s325(3) or (4)of the        
                                   Companies Act 1985]                         
                                                                               
Class of Security                  Ordinary 2.5p shares                        
                                                                               
Number of shares                   N/A.                                        
                                                                               
Price per share                    N/A.                                        
                                                                               
Date and place of transaction      N/A. UK.                                    
                                                                               
Date Company Notified              N/A.                                        
                                                                               
Total share interests following    10,257                                      
this information                                                               
                                                                               
Total percentage of issued class   0.002% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of Company                    Alliance Trust PLC                          
                                                                               
Name of Director                   Clare Salmon                                
                                                                               
Type of Transaction                Change in beneficial interest following the 
                                   merger of the Company and The Second        
                                   Alliance Trust PLC ("2AT") and the exchange 
                                   of shares owned beneficially in 2AT for     
                                   shares owned beneficially in the Company    
                                   following the subdivision of the Company's  
                                   share capital on a ten for one basis        
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1) (a) and DR     
                                   3.1.4(R) (1) (b) [section 324 as extended by
                                   section 328 of the Companies Act 1985 or    
                                   entered into the Company's register in      
                                   accordance with s325(3) or (4)of the        
                                   Companies Act 1985]                         
                                                                               
Class of Security                  Ordinary 2.5p shares                        
                                                                               
Number of shares                   N/A.                                        
                                                                               
Price per share                    N/A.                                        
                                                                               
Date and place of transaction      N/A. UK.                                    
                                                                               
Date Company Notified              N/A.                                        
                                                                               
Total share interests following    3,749                                       
this information                                                               
                                                                               
Total percentage of issued class   0.001% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of Company                    Alliance Trust PLC                          
                                                                               
Name of Director                   Gordon McQueen                              
                                                                               
Type of Transaction                Change in beneficial interest following the 
                                   merger of the Company and The Second        
                                   Alliance Trust PLC ("2AT") and the exchange 
                                   of shares owned beneficially in 2AT for     
                                   shares owned beneficially in the Company    
                                   following the subdivision of the Company's  
                                   share capital on a ten for one basis        
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1) (a) and DR     
                                   3.1.4(R) (1) (b) [section 324 as extended by
                                   section 328 of the Companies Act 1985 or    
                                   entered into the Company's register in      
                                   accordance with s325(3) or (4)of the        
                                   Companies Act 1985]                         
                                                                               
Class of Security                  Ordinary 2.5p shares                        
                                                                               
Number of shares                   N/A.                                        
                                                                               
Price per share                    N/A.                                        
                                                                               
Date and place of transaction      N/A. UK.                                    
                                                                               
Date Company Notified              N/A.                                        
                                                                               
Total share interests following    3,749                                       
this information                                                               
                                                                               
Total percentage of issued class   0.001% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of Company                    Alliance Trust PLC                          
                                                                               
Name of Director                   William Jack                                
                                                                               
Type of Transaction                Change in beneficial interest following the 
                                   merger of the Company and The Second        
                                   Alliance Trust PLC ("2AT") and the exchange 
                                   of shares owned beneficially in 2AT for     
                                   shares owned beneficially in the Company    
                                   following the subdivision of the Company's  
                                   share capital on a ten for one basis        
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1) (a) and DR     
                                   3.1.4(R) (1) (b) [section 324 as extended by
                                   section 328 of the Companies Act 1985 or    
                                   entered into the Company's register in      
                                   accordance with s325(3) or (4)of the        
                                   Companies Act 1985]                         
                                                                               
Class of Security                  Ordinary 2.5p shares                        
                                                                               
Number of shares                   N/A.                                        
                                                                               
Price per share                    N/A.                                        
                                                                               
Date and place of transaction      N/A. UK.                                    
                                                                               
Date Company Notified              N/A.                                        
                                                                               
Total share interests following    18,745                                      
this information                                                               
                                                                               
Total percentage of issued class   0.003% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of contact                    Mr. Ian Anderson                            
                                                                               
Telephone Number                   01382 201700                                
                                                                               
Date of notification               21 June 2006