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 September 14, 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
Other (please specify): Loss of two accounts
3. Full name of person(s) subject to the notification
obligation:
Sanderson Asset Management 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:
13 September 2007
6. Date on which issuer notified:
14 September 2007
7. Threshold(s) that is/are crossed or reached:
3%
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 Number of voting rights % of voting rights
using the ISIN Shares Voting shares ix
CODE Rights
viii Direct x Indirect xi Direct Indirect
GB00B1HTFP68 48,164,262 52,415,919 52,415,919 3.07%
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
52,415,919 3.07%
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: Sanderson Asset Management Ltd
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: Sanderson Asset Management Ltd ("Sanderson") acts as investment
manager for the clients detailed in Question 4 above (our "
Clients"). In acting for our Clients, Sanderson are given full
discretion over their investments and are empowered to vote on
their behalf. However, we do not act as our Clients' custodian
and therefore shares are not held in our name but in the name of
each Clients' custodian bank.
14. Contact name: Jeremy Knowles
15. Contact telephone number: 0207-468-5977
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: September 14, 2007