Director/PDMR Shareholding

Announcement of Director's interests in securities by Alliance
Trust PLC

Director's interests in securities


Name of Company             Alliance Trust PLC

Name of Director            David Alun Deards

Type of Transaction         Increase in beneficial interest
                            following purchase of shares
                            (within Share Incentive Plan
                            pursuant to standing instruction).

Reason for Notification     A transaction required to be
                            notified in accordance with DTR
                            3.1.4R(1) (a) and DTR 3.1.4(R) (1)
                            (b)

Class of Security           Ordinary 2.5p shares

Name of registered holder   Alliance Trust Savings Nominees
                            Limited

Number of shares            17

Price per share             £3.7825
Date and place of           9 May 2007. UK.
transaction
Date Company Notified       9 May 2007.

Total share interests
following this
information:

Beneficially Owned          41,096
(including self, connected
persons and Share
Incentive
Plan excluding Employee
Benefit Trust)

Beneficial interest in      7,787
shares held for director
by Trustee of Employee
Benefit Trust

Deemed beneficial interest  162,939
in shares held for company
by Trustee of Employee
Benefit Trust

Total percentage of issued  0.031% (all interests)
class
This notification does not relate to dealings by persons
otherwise connected with the named director.

Name of Company             Alliance Trust PLC

Name of Director            Alan Jerry Harden

Type of Transaction         Increase in beneficial interest
                            following purchase of shares
                            (within Share Incentive Plan
                            pursuant to standing instruction).

Reason for Notification     A transaction required to be
                            notified in accordance with DTR
                            3.1.4R(1) (a) and DTR 3.1.4(R) (1)
                            (b)

Class of Security           Ordinary 2.5p shares

Name of registered holder   Alliance Trust Savings Nominees
                            Limited

Number of shares            9

Price per share             £3.7825
Date and place of           9 May 2007. UK.
transaction
Date Company Notified       9 May 2007.

Total share interests
following this
information:

Beneficially Owned          40,937
(including self, connected
persons and Share
Incentive
Plan excluding Employee
Benefit Trust)

Beneficial interest in      15,959
shares held for director
by Trustee of Employee
Benefit Trust

Deemed beneficial interest  162,939
in shares held for company
by Trustee of Employee
Benefit Trust

Total percentage of issued  0.033% (all interests)
class
This notification does not relate to dealings by persons
otherwise connected with the named director.

Name of contact             Mr. Ian Anderson

Telephone Number            [phone]

Date of notification        9 May 2007