Director/PDMR Shareholding

Directors' interests in securities

Name of Company                               The Alliance Trust PLC

Name of Director                              Mrs Sheila M Ruckley

Type of Transaction                           Increase in beneficial interest following purchase of
                                              partnership shares (pursuant to regular standing
                                              instruction) within The Alliance Trust PLC Share Incentive
                                              Plan.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              4

Price per share                               £32.70

Date of transaction                           6 December 2005

Date Company informed                         6 December 2005

Total holdings following this information     9,882

Total percentage of issued class              0.02%



Name of Company                               The Alliance Trust PLC

Name of Director                              Mr. Alan M. W Young

Type of Transaction                           Increase in beneficial interest following purchase of
                                              partnership shares (pursuant to regular standing
                                              instruction) within The Alliance Trust PLC Share Incentive
                                              Plan.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              4

Price per share                               £32.70

Date of transaction                           6 December 2005

Date Company informed                         6 December 2005

Total holdings following this information     10,662

Total percentage of issued class              0.02%


Name of Company                               The Alliance Trust PLC

Name of Director                              Mr. David A Deards

Type of Transaction                           Increase in beneficial interest following purchase of
                                              partnership shares (pursuant to regular standing
                                              instruction) within The Alliance Trust PLC Share Incentive
                                              Plan.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              3

Price per share                               £32.70

Date of transaction                           6 December 2005

Date Company informed                         6 December 2005

Total holdings following this information     9,028

Total percentage of issued class              0.02%


Name of Company                               The Alliance Trust PLC

Name of Director                              Mr. Alan J Harden

Type of Transaction                           Increase in beneficial interest following purchase of
                                              partnership shares (pursuant to regular standing
                                              instruction) within The Alliance Trust PLC Share Incentive
                                              Plan.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              4
Price per share                               £32.70

Date of transaction                           6 December 2005

Date Company informed                         6 December 2005

Total holdings following this information     8,475

Total percentage of issued class              0.02%


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



Name of contact                               Mr. Ian Goddard

Telephone Number                              01382 201700

Date of notification                          6 December 2005