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 March, 2004
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- ________
SCHEDULE 10
NOTIFICATION OF MAJOR INTERESTS IN SHARES
1. Name of company
SPIRENT PLC
2. Name of shareholder having a major interest
BARCLAYS 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 NAMED 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
Registered Holder Account designation Holding
ABBEYUTTL-6010782807-VIDACOS N ABBEYUTT 275,601
ABPEURUKQ-872482-MELLON NOMINE ABPEURUK 1,005,443
ABUEURTTL-8003168-MORGAN NOMIN ABUEURTT 64,576
ALEXITTTL-28166-CHASE NOMINEES ALEXITTT 2,971,464
ALMLUFTTL-18409-CHASE MANHATTA ALMLUFTT 487,521
ASTEXMTTL-21359-CHASE NOMINEES ASTEXMTT 1,220,660
ASUKEXTTL-20947-CHASE MANHATTA ASUKEXTT 41,814,134
AXATRKTTL-845315-MIDLAND BANK AXATRKTT 23,453
B2350FTTL-19499-CHASE MANHATTA B2350FTT 106,298
BARCLAYS CAPITAL NOMINEES LIMI 934,302
BARCLAYS TRUST CO AS EXEC/ADM 615
BARCLAYSHARE NOMINEES LIMITED 41,330
BDFORDTTL-BCP01-NORTHERN TRUST BDFORDTT 47,353
BDUKEQTTL-N3YZ-STATE STREET BDUKEQTT 10,446
BEUREQTTL-N3B2-STATE STREET BEUREQTT 8,621
BLENTFUKQ-16344-CHASE MANHATTA BLENTFUK 400,264
BLENTPUKQ-16345-CHASE MANHATTA BLENTPUK 742,167
BLEQFDUKQ-16331-CHASE MANHATTA BLEQFDUK 246,435
BLEQPTUEA-16341-CHASE MANHATTA BLEQPTUE 1,964,545
BLEQPTUKQ-16341-CHASE MANHATTA BLEQPTUK 650,710
BLFEDRTT 122,407
BLFEDRTTL-28269-CHASE NOMINEES
BLFEPDTTL-28270-CHASE NOMINEES BLFEPDTT 716,067
BLFEPDUKQ-28270-CHASE NOMINEES BLFEPDUK 270,467
BLUKINTTL-16400-CHASE MANHATTA BLUKINTT 8,433,668
BRKSPFTTL-813168-MIDLAND BANK BRKSPFTT 926,308
BUCAPTUEA-19503-CHASE MANHATTA BUCAPTUE 258,537
BUCAPTUKQ-19503-CHASE MANHATTA BUCAPTUK 124,989
BUDISTUKA-19514-CHASE MANHATTA BUDISTUK 128,618
BUEXINTTL-19520-CHASE MANHATTA BUEXINTT 480,956
BUFIVE350-19508-CHASE MANHATTA BUFIVE35 1,145,581
BUGENRTTL-19507-CHASE MANHATTA BUGENRTT 319,061
BUGENRUEA-19507-CHASE MANHATTA BUGENRUE 785,257
BUINCM350-19505-CHASE MANHATTA BUINCM35 209,020
BUINCMTTL-19505-CHASE MANHATTA BUINCMTT 138,568
BUINVFTTL-19518-CHASE MANHATTA BUINVFTT 662,812
BUKEQUTTL-N3B6-STATE STREET BUKEQUTT 316,270
BUSPCSUKQ-19519-CHASE MANHATTA BUSPCSUK 2,652,018
BUTRSFTTL-19512-CHASE MANHATTA BUTRSFTT 40,008
CAAPENTTL-CVS21-NORTHERN TRUST CAAPENTT 1,692,992
CEULIPTTL-367748-BANK OF NEW Y CEULIPTT 3,599,470
CHATRKTTL-16376-CHASE MANHATTA CHATRKTT 475,611
CHRSTHUKX-16621-CHASE MANHATTA CHRSTHUK 186,353
CHUCOMTTL-31961-CHASE NOMINEES CHUCOMTT 1,347,971
CLTWORTTL-392177-BANK OF NEW Y CLTWORTT 313,638
COUEUKTTL-392067-BANK OF NEW Y COUEUKTT 4,526,598
DENTSTUKA-16644-CHASE MANHATTA DENTSTUK 420,978
DUNSWRUKA-16612-CHASE MANHATTA DUNSWRUK 154,621
DYFEDXUKA-772823-MIDLAND BANK DYFEDXUK 1,951,762
ESBSUPTTL-218311-BANK OF NEW Y ESBSUPTT 43,074
FFP350TTL-221476-BNY (OCS) NOM FFP350TT 252,149
FFPONGTTL-221428-BANK OF NEW Y FFPONGTT 524,342
FKRUSSTTL-501562755-BANKERS TR FKRUSSTT 2,023,638
FRNUKQTTL-501575013-BANKERS TR FRNUKQTT 378,406
GMITRNTTL-25772-CHASE MANHATTA GMITRNTT 595,609
INVESTORS BANK AND TRUST CO. 527191 3,056,084
INVESTORS BANK AND TRUST CO. 536747 756,438
INVESTORS BANK AND TRUST CO. 552942 355,221
INVESTORS BANK AND TRUST CO. 573039 101,088
INVESTORS BANK AND TRUST CO. 585934 10,802
INVESTORS BANK AND TRUST CO. 595966 230,692
JPMORGAN CHASE BANK 540186 181,647
JPMORGAN CHASE BANK BTGF01IE 341,021
JPMORGAN CHASE BANK BTGF05IE 381,288
KIOGEQUKA-387173-BNY (OCS) NOM KIOGEOUK 184,663
MARKIPTTL-814537-MIDLAND BANK MARKIPTT 80,198
MARKUKTTL-814574-MIDLAND BANK MARKUKTT 75,842
NORTHERN TRUST BANK - BGI SEPA 581610 274,022
NORTHERN TRUST BANK - BGI SEPA 584069 116,930
NORTHERN TRUST BANK - BGI SEPA 604162 41,732
NUFFOUTTL-TNF01-NORTRUST NOMIN NUFFOUTT 329,159
NUFGENUKA-16901-CHASE MANHATTA NUFGENUK 127,521
PGUKALTTL-613363-CITIBANK NA PGUKALTT 519,989
POWYSFTTL-16649-CHASE MANHATTA POWYSFTT 41,844
PPPMEDUKQ-8002238-DEUTSCHE BAN PPPMEDUK 127,458
PTMA11TTL-27717-CHASE NOMINEES PTMA11TT 104,456
R C GREIG NOMINEES LIMITED A/C BL1 159,633
R C GREIG NOMINEES LIMITED A/C CM1 36,608
R C GREIG NOMINEES LIMITED GP1 GP1 15,218
R C GREIG NOMINEES LIMITED SA1 SA1 18,461
ROYLIVTTL-LIV02-NORTRUST NOMIN ROYLIVTT 854,383
SCTPEQTLC-SCO06-NORTRUST NOMIN SCTPEOTL 308,641
STHWRKUKQ-16669-CHASE MANHATTA STHWRKUK 63,310
TORFAEUKQ-003002-MELLON NOMINE TORFAEUK 84,024
TPGEQUTTL-6948890986-CITIBANK TPGEOUTT 184,937
TRIBUNTTL-18243-CHASE MANHATTA TRIBUNTT 127,489
UNIAEQTTL-USF12-NORTHERN TRUST UNIAEOTT 2,084,752
UNLVERUKQ-USF06-NORTHERN TRUST UNLVERUK 207,560
WELLCOTTL-JD12-STATE STREET WELLCOTT 447,165
WINUKPTTL-6010640794-VIDACOS N WINUKPTT 252,237
WOOUSFTTL-214075-BANK OF NEW Y WOOUSFTT 4,422,391
ZEBAN NOMINEES LIMITED 1,700
ZEBAN NOMINEES LIMITED 4,780
------------
TOTAL 105,945,146
------------
5. Number of shares / amount of stock acquired
NOT NOTIFIED
6. Percentage of issued class
NOT NOTIFIED
7. Number of shares / amount of stock disposed
-
8. Percentage of issued class
-
9. Class of security
ORDINARY SHARES OF 3.3333 PENCE EACH
10. Date of transaction
10 MARCH 2004
11. Date company informed
12 MARCH 2004
12. Total holding following this notification
105,945,146
13. Total percentage holding of issued class following this notification
11.17%
14. Any additional information
NOTIFICATION RECEIVED PURSUANT TO S198-202 COMPANIES ACT 1985 THAT THE
SHAREHOLDER NAMED IN 2 ABOVE HAS INCREASED THEIR SHAREHOLDING IN SPIRENT
PLC TO 11.17%. SHAREHOLDER PREVIOUSLY REPORTED A SHAREHOLDING OF 95,500,218
SHARES (10.07%) ON 16 FEBRUARY 2004.
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
12 MARCH 2004
The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.
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 12 March 2004 By ____/s/ Luke Thomas____
(Signature)*