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 January 23, 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 shares Signet Group PLC 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):___________________________ 3. Full name of person(s) subject to the notification obligation: Capital International Limited, affiliate of the Capital Group Companies Inc 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): Not stated 6. Date on which issuer notified: 23-Jan-2007 7. Threshold(s) that is/are crossed or reached: 3% and at 1% intervals thereafter 8. Notified details: A: Voting rights attached to shares: Class/type of Situation previous to the Resulting situation after the triggering transaction shares Triggering transaction if possible using the ISIN CODE Number of Number of No of Number of voting rights % of voting rights Shares Voting Rights shares Direct Direct Indirect Direct Indirect Ordinary Share 128,249,281 128,249,281 119,662,533 6.971 GB0000403740 B: Financial Instruments: Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Conversion Number of voting rights % of voting instrument date Period/ Date that may be acquired if rights the instrument is exercised/ converted. N/A Total (A+B) Number of voting rights % of voting rights 119,662,533 6.971 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: State Street Nominees Limited - 1,288,900 shares Bank of New York Nominees - 26,741,652 shares Northern Trust - 14,224,122 shares Chase Nominees Limited - 26,500,207 shares Midland Bank plc - 2,315,400 shares Bankers Trust - 770,000 shares Barclays Bank - 345,500 shares Citibank London - 367,700 shares Morgan Guaranty - 2,958,400 shares Nortrust Nominees - 16,645,624 shares MSS Nominees - 290,000 shares State Street Bank & Trust Co - 12,038,008 shares Lloyds Bank - 154,500 shares Citibank - 455,500 shares Citibank NA - 163,200 shares Deutsche Bank AG - 124,000 shares Chase Manhattan Nominee Ltd - 504,200 shares HSBC Bank plc - 8,177,700 shares Mellon Bank N.A. - 1,543,500 shares KAS UK - 651,720 shares Mellon Nominees (UK) Limited - 606,900 shares Bank One London - 1,770,100 shares JP Morgan Chase Bank - 379,300 shares Fortis Bank - 46,400 shares Metzler Seel Sohn & Co - 534,000 shares Bayerische Hypo Und Vereinsbank AG - 66,000 shares Proxy Voting: 10. Name of the proxy holder: N/A 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: Mark Jenkins - Signet Group plc 15. Contact telephone 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: January 23, 2007