Director/PDMR Shareholding

Announcement of Director's interests in securities by Alliance Trust PLC

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Director's interests in securities
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Name of Company:                         Alliance Trust PLC

Name of Director:                        Mr Alan Harden

Type of Transaction:                     Increase in beneficial interest 
                                         following purchase of shares 
                                         (within Select Investment Plan 
                                         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:                        275
    
Price per share:                         £3.6075

Date and place of transaction:           12 December 2007. UK.
    
Date Company Notified:                   13 December 2007.


Total share interests following this information:
    
Beneficially Owned (including self, 
connected persons and Share Incentive   
Plan excluding Employee Benefit Trust):  52,487.

Beneficial interest in shares held 
for director by Trustee of Employee     
Benefit Trust:                           25,185.
    
Deemed beneficial interest in shares 
held for company by Trustee of 
Employee Benefit Trust:                  1,108,624.

Total percentage of issued class:        0.176% (all interests)


           This notification does not relate to dealings by 
           persons otherwise connected with the named director.

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Director's interests in securities
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Name of Company:                    Alliance Trust PLC

Name of Director:                   Mrs Lesley Knox
    
Type of Transaction:                Increase in beneficial interest
                                    following purchase of shares (within
                                    Select Pension Plan pursuant to 
                                    regular standing instruction) by 
                                    child under 18 years.

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:                   64

Price per share:                    £3.6075

Date and place of transaction:      12 December 2007. UK.

Date Company Notified:              13 December 2007.

Total share interests following 
this information:                   100,586.
    
Total percentage of issued class:   0.015% (all interests)


         This notification does not relate to dealings by 
         persons otherwise connected with the named director.

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Name of contact:                    Ian Anderson

Telephone Number:                   [phone]

Date of notification:               13 December 2007