Director/PDMR Shareholding

Director's interests in securities

Name of Company                               The Alliance Trust PLC

Name of Director                              Mrs. Lesley M S Knox

Type of Transaction                           Increase in beneficial interest following purchase of
                                              shares.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Mrs. Lesley M. S. Knox

Number of shares                              661

Price per share                               £30.05

Date of transaction                           15th September 2005

Date Company informed                         23rd September 2005

Total holdings following this information     2,092

Total percentage of issued class              0.004%



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



Name of contact                               Mr. Ian Goddard

Telephone Number                              01382 201700

Date of notification                          23rd September 2005