Director/PDMR Shareholding

Alliance Trust PLC

Disclosure of Director's Interests in shares

Alliance Trust PLC ("the Company") on 28 May 2009 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 28 May 2009, 17,315
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 Alliance Trust
Senior Management Equity Incentive Plan (`SMEIP') had been transferred to
satisfy awards made under the SMEIP which had vested.

Katherine Garrett-Cox, executive director, is a member of the class of
discretionary beneficiaries of the Trust and is consequently deemed to have an
interest in the shares held in the Trust on behalf of the Company which now
total 1,825,355 (0.272% of the Company's issued share capital).

For further information please contact:

Name of contact       Mr Ian Anderson                                 
                                                                      
Telephone Number      [phone]                              
                                                                      
Date of notification  28 May 2009