Director/PDMR Shareholding

Alliance Trust PLC

Disclosure of Directors Interests in shares

Alliance Trust PLC ("the Company") on 15 December 2008 received notification
from RBC Cees Trustees Limited as Trustee of Alliance Trust PLC Employee
Benefit Trust ("the Trust") (a discretionary trust of which all employees of
the Company and its subsidiaries are beneficiaries), that on 15 December 2008,
1,043 Ordinary 2.5p shares in the capital of the Company which had been
purchased on behalf of the Company to meet future awards made under the Second
Alliance Trust Senior Management Equity Incentive Plan (`SMEIP') had been
transferred to satisfy awards made under the SMEIP which had vested.

David Deards and Katherine Garrett-Cox, both executive directors, and Rowland
Strickland, Person Discharging Managerial Responsibilities, are all members of
the class of discretionary beneficiaries of the Trust and are each consequently
deemed to have an interest in the shares held in the Trust on behalf of the
Company which now total 1,844,991 (0.275% of the Company's issued share
capital).

For further information please contact:

Name of contact       Mr. Ian Anderson                                
                                                                      
Telephone Number      [phone]                              
                                                                      
Date of notification  15 December 2008