FORM 6-K

 

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

 

Special Report of Foreign Issuer

 

Pursuant to Rule 13a - 16 or 15d - 16 of
The Securities and Exchange Act of 1934

 

For the date of June 18, 2007

 

SIGNET GROUP plc
(Translation of registrant's name into English)

15 Golden Square
London W1F 9JG
England
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40F.

Form 20-F X      Form 40-F

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes         No X

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

 

TR-1:               notification of major interests in shares


1. Identity of the issuer or the underlying issuer of existing              Signet Group plc
shares to which voting rights are attached:

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights                                 x

An acquisition or disposal of financial instruments which may result in the acquisition of
shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

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

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

5. Date of the transaction and date on which the threshold is               14/6/07
crossed or reached:

6. Date on which issuer notified:                                           15/06/07

7. Threshold(s) that is/are crossed or reached:                             5%



8. Notified details:


A: Voting rights attached to shares
Class/type of     Situation previous to Resulting situation after the triggering transaction
shares            the Triggering
                  transaction

if possible    Number of   Number of   Number of shares      Number of voting      % of voting rights
using the ISIN Shares      Voting                            rights ix
CODE                       Rights      Direct     Indirect   Direct  x   Indirect  Direct      Indirect
                           viii                                          xi

               85,125,897  85,125,897  86,622,118            86,622,118            5.07%


B: Financial Instruments


Resulting situation after the triggering transaction xii


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





Total (A+B)


Number of voting rights                             % of voting rights

86,622,118                                          5.07%




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



Proxy Voting:


10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:



13. Additional information:
14. Contact name:
15. Contact telephone number:



Identity of the notifier



Full name:  Mark Andrew Jenkins - Group Company Secretary

Contact address:   Signet Group plc, 15 Golden Square, London, W1F 9JG

Phone number:      0870 90 90 301

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

                                                                 SIGNET GROUP plc

                                                             By: /s/ Walker Boyd

                                                              Name: Walker Boyd
                                                                          Title: Group Finance Director

Date:   June 18, 2007