Director Share Purchase

Announcement of Director's interests in securities by The Alliance Trust PLC   
                                                                               
Director's interests in securities                                             
                                                                               
Name of Company                         The Alliance Trust PLC                 
                                                                               
Name of Director                        Alan J. Harden                         
                                                                               
Type of Transaction                     Increase in beneficial interest        
                                        following purchase of shares (within   
                                        Investment Plan pursuant to regular    
                                        standing order and standing election). 
                                                                               
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 25p shares                    
                                                                               
Name of registered holder               Alliance Trust Savings Nominees Limited
                                                                               
Number of shares                        14                                     
                                                                               
Price per share                         £35.38                                 
                                                                               
Date and place of transaction           17 February 2006. UK.                  
                                                                               
Date Company Notified                   6 March 2006.                          
                                                                               
Name of Company                          The Alliance Trust PLC                
                                                                               
Name of Director                         Alan J. Harden                        
                                                                               
Type of Transaction                      Increase in beneficial interest       
                                         following purchase of shares (within  
                                         Investment Plan pursuant to regular   
                                         standing order and standing election) 
                                         by child under 18.                    
                                                                               
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 25p shares                   
                                                                               
Name of registered holder                Alliance Trust Savings Nominees       
                                         Limited                               
                                                                               
Number of shares                         2                                     
                                                                               
Price per share                          £31.33                                
                                                                               
Date and place of transaction            4 October 2005. UK.                   
                                                                               
Date Company Notified                    19 March 2006.                        
                                                                               
Name of Company                          The Alliance Trust PLC                
                                                                               
Name of Director                         Alan J. Harden                        
                                                                               
Type of Transaction                      Increase in beneficial interest       
                                         following purchase of shares (within  
                                         Investment Plan pursuant to regular   
                                         standing order and standing election) 
                                         by spouse.                            
                                                                               
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 25p shares                   
                                                                               
Name of registered holder                Alliance Trust Savings Nominees       
                                         Limited                               
                                                                               
Number of shares                         2                                     
                                                                               
Price per share                          £31.33                                
                                                                               
Date and place of transaction            4 October 2005. UK.                   
                                                                               
Date Company Notified                    19 March 2006.                        
                                                                               
Total share interests following this                                           
information:                                                                   
                                                                               
Beneficially Owned (including self,      1045                                  
connected persons and Share Incentive                                          
                                                                               
Plan excluding Employee Benefit Trust)                                         
                                                                               
Beneficial interest in shares held for   500                                   
director by Trustee of Employee Benefit                                        
Trust                                                                          
                                                                               
Deemed beneficial interest in shares     6987                                  
held for company by Trustee of Employee                                        
Benefit Trust                                                                  
                                                                               
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 Company                          The Alliance Trust PLC                
                                                                               
Name of Director                         Christopher Masters                   
                                                                               
Type of Transaction                      Increase in beneficial interest       
                                         following purchase of shares (within  
                                         Investment Plan pursuant to regular   
                                         standing order and standing election).
                                                                               
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 25p shares                   
                                                                               
Name of registered holder                Alliance Trust Savings Nominees       
                                         Limited                               
                                                                               
Number of shares                         2                                     
                                                                               
Price per share                          £30.47                                
                                                                               
Date and place of transaction            11 October 2005. UK.                  
                                                                               
Date Company Notified                    19 March 2006                         
                                                                               
Total share interests following this     525*                                  
information                                                                    
                                                                               
Total percentage of issued class         0.001% (all interests)                
                                                                               
*Includes 4 shares held by a connected person at the date of Dr Masters'       
appointment as a director in November 2002 and not previously reported.        
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
Name of Company                          The Alliance Trust PLC                
                                                                               
Name of Director                         Lesley Knox                           
                                                                               
Type of Transaction                      Increase in beneficial interest       
                                         following purchase of shares (within  
                                         Select ISA pursuant to regular        
                                         standing order and standing election).
                                                                               
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 25p shares                   
                                                                               
Name of registered holder                Alliance Trust Savings Nominees       
                                         Limited                               
                                                                               
Number of shares                         8                                     
                                                                               
Price per share                          £35.38                                
                                                                               
Date and place of transaction            17 February 2006. UK.                 
                                                                               
Date Company Notified                    6 March 2006                          
                                                                               
Total share interests following this     2191                                  
information                                                                    
                                                                               
Total percentage of issued class         0.004% (all interests)                
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       
                                                                               
The late notification of these interests has resulted from errors in the system
of reporting directors' transactions in shares of the company, which have now  
been corrected.                                                                
                                                                               
Mr. Ian Goddard                                                                
                                                                               
Company Secretary                                                              
                                                                               
Telephone Number                         01382 201700                          
                                                                               
Date of notification                     21 March 2006