Director/PDMR Shareholding

Directors' interests in securities

Name of Company                               The Alliance Trust PLC

Name of Director                              Mrs Sheila M Ruckley

Type of Transaction                           1.Increase in beneficial interest following purchase of
                                                shares (within PEP and Investment Plan pursuant to
                                                regular standing order and standing election).

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

                                              3.Increase in beneficial interest following purchase of
                                                dividend shares 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                              1.   15
                                              2.   4
                                              3.   5

Price per share                               1.   £31.33
                                              2.   £31.28
                                              3.   £31.28

Date of transaction                           1.   4th October 2005
                                              2.   4th October 2005
                                              3.   4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     9,830

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                           1.Increase in beneficial interest following purchase of
                                                shares (by self within PEP and ISA and by spouse within
                                                PEP, ISA and Investment Plan pursuant to regular
                                                standing order and standing election).

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

                                              3.Increase in beneficial interest following purchase of
                                                dividend shares 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                              1.   28 (13 self, 15 spouse)
                                              2.   4
                                              3.   5

Price per share                               1.   £31.33
                                              2.   £31.28
                                              3.   £31.28

Date of transaction                           1.   4th October 2005
                                              2.   4th October 2005
                                              3.   4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     10,654

Total percentage of issued class              0.02%


Name of Company                               The Alliance Trust PLC

Name of Director                              Mr. David A Deards

Type of Transaction                           1.Increase in beneficial interest following purchase of
                                                shares (within Investment Plan pursuant to regular
                                                standing order and standing election).

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

                                              3.Increase in beneficial interest following purchase of
                                                dividend shares 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                              1.   6
                                              2.   4
                                              3.   3

Price per share                               1.   £31.33
                                              2.   £31.28
                                              3.   £31.28

Date of transaction                           1.   4th October 2005
                                              2.   4th October 2005
                                              3.   4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     8,999

Total percentage of issued class              0.02%


Name of Company                               The Alliance Trust PLC

Name of Director                              Mr. Alan J Harden

Type of Transaction                           1.Increase in beneficial interest following purchase of
                                                shares (within Investment Plan pursuant to regular
                                                standing order and standing election).

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

                                              3.Increase in beneficial interest following purchase of
                                                dividend shares 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                              1.   7
                                              2.   4
                                              3.   1

Price per share                               1.   £31.33
                                              2.   £31.28
                                              3.   £31.28

Date of transaction                           1.   4th October 2005
                                              2.   4th October 2005
                                              3.   4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     8,435

Total percentage of issued class              0.02%


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 (by self within ISA and pursuant to regular standing
                                              order and standing election)and (within pension plan
                                              pursuant to regular standing order and standing election)
                                              by child under 18.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              10 (3 self, 7 child under 18)

Price per share                               £31.33

Date of transaction                           4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     2,104

Total percentage of issued class              0.004%


Name of Company                               The Alliance Trust PLC

Name of Director                              Dr. Christopher Masters

Type of Transaction                           Increase in beneficial interest following purchase of
                                              shares (within investment plan pursuant to regular standing
                                              order and standing election) by spouse.

Class of Security                             Ordinary shares of 25p

Name of registered holder                     Alliance Trust Savings Nominees Limited

Number of shares                              4

Price per share                               £31.33

Date of transaction                           4th October 2005

Date Company informed                         5th October 2005

Total holdings following this information     519

Total percentage of issued class              0.001%


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                          6th October 2005