Director/PDMR Shareholding

Announcement of Person Discharging Managerial Responsibilities (PDMR) interests
in securities by Alliance Trust PLC

PDMR interests in securities

Name of Company                    Alliance Trust PLC

Name of PDMR                       Rowland Strickland

Type of Transaction                Increase in beneficial interest following
                                   purchase of Deposited Shares (within Long
                                   Term Incentive Plan).

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

Class of Security                  Ordinary 2.5p shares

Name of registered holder          Greenwood Nominees Limited

Number of shares                   4,709 - Beneficial Interest

                                   7 - Deemed beneficial interest in shares
                                   purchased by Trustee of Employee Benefit
                                   Trust

Price per share                    £3.7838

Date and place of transaction      25 and 30 May 2007. UK.

Date Company Notified              31 May 2007.

Total share interests following
this information:

Beneficially Owned (including      1,855
self, connected persons and
Share Incentive Plan excluding
Employee Benefit Trust)

Beneficial interest in shares      13,126
held for PDMR by Trustee of
Employee Benefit Trust

Deemed beneficial interest in      162,946
shares held for company by
Trustee of Employee Benefit Trust

Total percentage of issued class   0.026% (all interests)

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

Name of contact                    Mr. Donald McPherson

Telephone Number                   [phone]

Date of notification               31 May 2007