UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of February, 2003
SPIRENT plc
_____________________________________________________________________
(Translation of registrant's name into English)
Spirent House, Crawley Business Quarter, Fleming Way, Crawley, West Sussex
RH10 9QL, UK.
_____________________________________________________________________
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or Form 40-F.
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- ________
London Stock Exchange
NOTIFICATION OF MAJOR INTERESTS IN SHARES
All relevant boxes should be completed in block capital letters
1 Name of company
SPIRENT plc
2 Name of shareholder having a major interest
AVIVA plc
3 Please state whether notification indicates that it is in
respect of holding of the shareholder named in 2 above or
in respect of a non-beneficial interest or in the case of
an individual holder if it is a holding of that person's
spouse or children under the age of 18
SHAREHOLDER IN 2 ABOVE
4 Name of the registered holder(s) and, if more
than one holder, the number of shares held by
each of them
-
5 Number of shares 6 Percentage of 7 Number of shares
/ amount of Issued /amount of stock
stock acquired disposed
Class
- 7,269,643
-
8 Percentage of Issued
Class
0.77%
9 Class of security 10 Date of transaction
ORDINARY SHARES OF 3 1/3p EACH 6 February 2003
11 Date company informed
7 February 2003
12 Total holding following this notification
27,575,998
13 Total percentage holding of issued class following
this notification
2.93%
14 Any additional information
NOTIFICATION IN ACCORDANCE WITH S.198-202 COMPANIES
ACT 1985 THAT THE SHAREHOLDER NAMED IN 2 ABOVE NO
LONGER HAS A NOTIFIABLE INTEREST IN THE COMPANY
15 Name of contact and telephone number for queries
LUKE THOMAS - 01293 767658
16 Name and signature of authorised company official
responsible for making this notification
LUKE THOMAS - DEPUTY COMPANY SECRETARY
Date of notification 10 February 2003
London Stock Exchange, Company Announcements Office, Old Broad Street, London
EC2N 1HP
Facsimile: 0207 588 6057, 0207 334 8964/8965/8966 (PLEASE DO NOT POST)
Enquries: Continuing Obligations: Telephone: 0207 797 3850/1639/1972/3150
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.
______LUKE THOMAS______
(Registrant)
Date 10 February 2003 By ____/s/ Luke Thomas____
(Signature)*