Holding(s) in Company

Spirent PLC 22 January 2003 London Stock Exchange NOTIFICATION OF MAJOR INTERESTS IN SHARES All relevant boxes should be completed in block capital letters 1 Name of company 2 Name of shareholder having a major interest SPIRENT plc Prudential plc 3 Please state whether notification indicates that it is in 4 Name of the registered holder(s) and, if more respect of holding of the shareholder named in 2 above or than one holder, the number of shares held by in respect of a non-beneficial interest or in the case of each of them an individual holder if it is a holding of that person's spouse or children under the age of 18 SHAREHOLDER IN 2 ABOVE M&G (LOMBARD ST) NOMS FPE 85,656 MAGIM HSBC GIS NOM(UK) SALI 240,957 PRUCLT HSBC GIS NOM(UK) PAC AC 42,469,044 PRUCLT HSBC GIS NOM(UK) PHL AC 1,265,804 PRUCLT HSBC GIS NOM(UK) PPL AC 1,858,111 PRUCLT HSBC GIS NOM(UK) SAL AC 25,333 ROY NOMINEES 578079 261,602 ROY NOMS LTD 578052 148,721 ROY NOMS LTD 578060 802,671 ROY NOMS LTD 578141 292,994 ROY NOMS LTD 578192 642,708 5 Number of shares 6 Percentage of 7 Number of shares 8 Percentage of Issued / amount of Issued /amount of stock Class stock acquired Class disposed 2,066,429 0.22% 9 Class of security 10 Date of transaction 11 Date company informed ORDINARY SHARES OF 3 1/3p EACH NOT KNOWN 22 JANUARY 2003 12 Total holding following this notification 13 Total percentage holding of issued class following this notification 48,093,601 5.10% 14 Any additional information 15 Name of contact and telephone number for queries NOTIFICATION IN ACCORDANCE WITH S.198 COMPANIES ACT 1985 (AS AMENDED) LUKE THOMAS - 01293 767658 16 Name and signature of authorised company official responsible for making this notification Date of notification 22 JANUARY 2003 LUKE THOMAS - DEPUTY COMPANY SECRETARY 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 This information is provided by RNS The company news service from the London Stock Exchange
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