Notifiable Interest

Walker Greenbank PLC
12 December 2007


For immediate release                                          12 December 2007





                      WALKER GREENBANK PLC ('the Company')

                              Notifiable Interest


A form TR-1 containing the following information has been received by the
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:

WALKER GREENBANK PLC

2. Reason for the notification

GONE OVER 21% THRESHOLD

3. Full name of person(s) subject to the notification obligation:

GARTMORE INVESTMENT LIMITED

4. Full name of shareholder(s) (if different from 3):


5. Date of the transaction (and date on which the threshold is crossed or
reached if different):

7TH DECEMBER 2007

6. Date on which issuer notified:

10TH DECEMBER 2007

7. Threshold(s) that is/are crossed or reached:

21%



8. Notified details:

A: Voting rights attached to shares
Class/type of     Situation previous to   Resulting situation after the triggering transaction
shares            Triggering transaction
                                          Notification required under DTR transitional provision 7
if possible using
ISIN CODE         Number of   Number of   Number of     Number of voting       % of voting rights
                  Shares      Voting      shares        rights
                              Rights

                                          Direct        Direct    Indirect     Direct    Indirect


GB000306151       12,190,000  12,190,000  12,425,000              12,425,000             21.057%

B: Financial Instruments
Resulting situation after the triggering transaction


Type of financial Expiration date     Exercise/           Number of voting       % of voting rights
instrument                            Conversion Period/  rights that may be
                                      Date                acquired if the
                                                          instrument is
                                                          exercised/ converted




Total (A+B)
Number of voting rights                              % of voting rights


12,425,000                                           21.057%



9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:

N/A

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:

ALL SHARES ARE HELD INDIRECTLY

14. Contact name:

JULIAN WILSON - COMPANY SECRETARY

15. Contact telephone number:

08708 300077




                      This information is provided by RNS
            The company news service from the London Stock Exchange