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 deposited shares (within Long   
                                   Term Incentive Plan)                        
                                                                               
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          RBC Cees Nominees Limited                   
                                                                               
Number of shares                   27,850                                      
                                                                               
Price per share                    £2.84                                       
                                                                               
Date and place of transaction      9 June 2009, UK.                            
                                                                               
Date Company Notified              9 June 2009                                 
                                                                               
Total share interests following                                                
this information:                                                              
                                                                               
Beneficially Owned (including      53,795                                      
self, connected persons and Share                                              
Incentive                                                                      
                                                                               
Plan excluding Employee Benefit                                                
Trust)                                                                         
                                                                               
Beneficial interest in shares held 160,516                                     
for director by Trustee of                                                     
Employee Benefit Trust                                                         
                                                                               
Deemed beneficial interest in      1,811,777                                   
shares held for company by Trustee                                             
of Employee Benefit Trust                                                      
                                                                               
Total percentage of issued class   0.3015% (all interests)                     
                                                                               
This notification does not relate to dealings by persons otherwise connected   
with the named director.                                                       

Long Term Incentive Plan Award

Katherine Garrett-Cox, Director, was today granted an award under the Alliance
Trust PLC Long Term Incentive Plan (2007) (the "2007 LTIP").

The award under the 2007 LTIP, granted over Alliance Trust PLC Ordinary 2.5p
shares, comprises a Matching Award granted with reference to the number of
Alliance Trust PLC Ordinary 2.5p shares purchased and deposited by Katherine
Garrett-Cox from her annual bonus award. The award is made subject to a
comparative TSR performance condition.

It is anticipated that when the award vests it will be settled in shares
although the 2007 LTIP permits the award to be settled in cash. There is no
payment required by the participant to allow vesting of the award.

The initial Market Value of the award, determined in accordance with the rules
of the 2007 LTIP, was 282.75p per share.

The award made is as follows:

               Number of                                
                                                        
   Form of      Shares                                  
                                                        
  Matching     comprised                     Normal date  
                                                        
   Award       in Option    Date of Grant    of vesting  
                                                        
   Option       94,406      10 June 2009     10 June 2012 

For further information please contact:

Name of contact       Mr. Ian Anderson                                  
                                                                        
Telephone Number      [phone]                                
                                                                        
Date of notification  10 June 2009