Director/PDMR Shareholding

Announcement of Person Discharging Managerial Responsibilities (PDMR) interests
in securities by Alliance Trust PLC                                            
                                                                               
PDMR interests in securities                                                   
                                                                               
Name of Company                    Alliance Trust PLC                          
                                                                               
Name of PDMR                       Rowland Strickland                          
                                                                               
Type of Transaction                Increase in beneficial interest following   
                                   purchase of shares (within Share Incentive  
                                   Plan pursuant to regular standing           
                                   instruction).                               
                                                                               
Reason for Notification            A transaction required to be notified in    
                                   accordance with DR 3.1.4R(1).               
                                                                               
Class of Security                  Ordinary 2.5p shares                        
                                                                               
Name of registered holder          Alliance Trust Savings Nominees Limited     
                                                                               
Number of shares                   35                                          
                                                                               
Price per share                    £3.6575                                     
                                                                               
Date and place of transaction      5 December 2006. UK.                        
                                                                               
Date Company Notified              6 December 2006.                            
                                                                               
Total share interests following                                                
this information:                                                              
                                                                               
Beneficially Owned (including      1,318                                       
self, connected persons and Share                                              
Incentive                                                                      
                                                                               
Plan excluding Employee Benefit                                                
Trust)                                                                         
                                                                               
Beneficial interest in shares held 8,417                                       
for PDMR by Trustee of Employee                                                
Benefit Trust                                                                  
                                                                               
Deemed beneficial interest in      162,940                                     
shares held for company by Trustee                                             
of Employee Benefit Trust                                                      
                                                                               
Total percentage of issued class   0.026% (all interests)                      
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named PDMR.                                                           
                                                                               
Name of contact                    Mr. Ian Anderson                            
                                                                               
Telephone Number                   01382 201700                                
                                                                               
Date of notification               6 December 2006