SOURCE: Spirent PLC

November 02, 2005 05:24 ET

Spirent PLC - Holding(s) in Company

Crawley, UK -- (MARKET WIRE) -- November 2, 2005 --NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of listed company

SPIRENT PLC

2. Name of shareholder with a major interest

UBS AG

3. Please state whether notification indicates that regarding the holding of the shareholder named in 2 above; 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

NOT KNOWN

5. Number of shares / amount of stock acquired

-

6. Percentage of issued class (any treasury shares held by the listed company should not be taken into account when calculating percentage)

-

7. Number of shares / amount of stock disposed

NOT KNOWN

8. Percentage of issued class (any treasury shares held by the listed company should not be taken into account when calculating percentage)

NOT KNOWN

9. Class of security

ORDINARY SHARES OF 3.3333 PENCE EACH

10. Date of transaction

NOT KNOWN

11. Date company informed

01 NOVEMBER 2005

12. Total holding following this notification

NOT KNOWN

13. Total percentage holding of issued class following this notification (any treasury shares held by the listed company should not be taken into account when calculating percentage)

<3%

14. Any additional information

NOTIFICATION RECEIVED PURSUANT TO S198-202 COMPANIES ACT 1985 THAT THE SHAREHOLDER NO LONGER HAS A NOTIFIABLE INTEREST. SHAREHOLDER PREVIOUSLY REPORTED A SHAREHOLDING OF 30,901,937 SHARES (3.20%) ON 31 OCTOBER 2005.

15. Name of contact and telephone number for queries

MICHAEL ANSCOMBE - 01293 767672

16. Name and signature of duly authorised company official of the listed company responsible for making this notification

MICHAEL ANSCOMBE - ASSISTANT COMPANY SECRETARY

Date of notification

02 NOVEMBER 2005


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