Holding(s) in Company

TR-1:  NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.  IDENTITY OF THE ISSUER OR THE
UNDERLYING ISSUER OF EXISTING SHARES
TO WHICH VOTING RIGHTS ARE ATTACHED:          Alliance Trust PLC

2.  REASON FOR NOTIFICATION:

a) an acquisition or disposal of
voting rights                                 YES

b) an acquisition or disposal of
financial instruments which may
result in the acquisition of shares           n/a
already issued to which voting rights
are attached

c) an event changing the breakdown of
voting rights                                 n/a

d) other                                      n/a

3.  FULL NAME OF PERSON(S) SUBJECT TO
THE NOTIFICATION OBLIGATION:                  D.C. Thomson & Company Limited

4.  FULL NAME OF SHAREHOLDER(S)
(if different from 3):                        As above

5.  DATE OF THE TRANSACTION AND DATE
ON WHICH THE THRESHOLD IS CROSSED OR
REACHED:                                      16 March 2007

6.  DATE ON WHICH ISSUER NOTIFIED:            16 March 2007

7.  THRESHOLD(S) THAT IS/ARE CROSSED
OR REACHED:                                   6.980%

8.  NOTIFIED DETAILS:

  A: VOTING RIGHTS ATTACHED TO SHARES

     CLASS/TYPE OF SHARES (if possible using
     the ISIN Code):                                2.5p Ordinary Shares

     SITUATION PREVIOUS TO THE TRIGGERING
     TRANSACTION:
     - NUMBER OF SHARES                             47,150,000
     - NUMBER OF VOTING RIGHTS                      47,150,000

     RESULTING SITUATION AFTER THE TRIGGERING
     TRANSACTION
     - NUMBER OF SHARES (DIRECT)                    46,900,000

     - NUMBER OF VOTING RIGHTS (DIRECT)             46,900,000
     - NUMBER OF VOTING RIGHTS (INDIRECT)           n/a

     - % OF VOTING RIGHTS (DIRECT)                  6.980%
     - % OF VOTING RIGHTS (INDIRECT)                n/a


  B: FINANCIAL INSTRUMENTS
     RESULTING SITUATION AFTER THE TRIGGERING TRANSACTION

     - TYPE OF FINANCIAL INSTRUMENT:                n/a

     - EXPIRATION DATE:                             n/a

     - EXERCISE/CONVERSION PERIOD/DATE:             n/a

     - NUMBER OF VOTING RIGHTS THAT MAY BE
     ACQUIRED IF THE INSTRUMENT IS EXERCISED/
     CONVERTED:                                     n/a

     - % OF VOTING RIGHTS:                          n/a


  TOTAL (A+B)
     - NUMBER OF VOTING RIGHTS:                     46,900,000
     - % OF VOTING RIGHTS:                          6.980%


9.  CHAIN OF CONTROLLED UNDERTAKINGS THROUGH WHICH THE VOTING RIGHTS
AND/OR THE FINANCIAL INSTRUMENTS ARE EFFECTIVELY HELD, IF APPLICABLE:

     N/A


PROXY VOTING:

10.  NAME OF THE PROXY HOLDER:          N/A

11.  NUMBER OF VOTING RIGHTS
PROXY HOLDER WILL CEASE TO HOLD:        N/A

12.  DATE ON WHICH PROXY HOLDER
WILL CEASE TO HOLD VOTING RIGHTS:       N/A


13.  ADDITIONAL INFORMATION:            Notification using the total
                                        voting rights figure of 671,909,760.

                                        36,000,000 held by D.C. Thomson & Co Ltd.

                                        10,900,000 held by John Leng & Co Ltd (a
                                        wholly owned subsidiary of D.C. Thomson &
                                        Co Ltd)

14.  CONTACT NAME:                      Ian Anderson

15.  CONTACT TELEPHONE NUMBER:          01382 201700

16.  DATE OF NOTIFICATION:              19 March 2007


ANNEX TO NOTIFICATION OF MAJOR INTERESTS IN SHARES:

A:  IDENTITY OF THE PERSON OR LEGAL ENTITY SUBJECT TO THE
NOTIFICATION OBLIGATION

   FULL NAME                            D.C. Thomson & Company Limited
   (including legal form for
   legal entities)

   CONTACT ADDRESS                      22 Meadowside, Dundee, DD1 1LN
   (registered office for legal
   entities)

   PHONE NUMBER                         01382 201534

   OTHER USEFUL INFORMATION             Irene Douglas, Company Secretary
   (at least legal representative
   for legal persons)


B:  IDENTITY OF THE NOTIFIER, IF APPLICABLE

   FULL NAME                            N/A

   CONTACT ADDRESS                      N/A

   PHONE NUMBER                         N/A

   OTHER USEFUL INFORMATION             N/A
   (e.g. functional relationship
   with the person or legal
   entity subject to the
   notification obligation)