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, 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 266,593
ABPEURUKQ-872482-MELLON NOMINE ABPEURUK 810,646
ABUEURTTL-8003168-MORGAN NOMIN ABUEURTT 18,757
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 36,902,444
AXATRKTTL-845315-MIDLAND BANK AXATRKTT 23,453
B2350FTTL-19499-CHASE MANHATTA B2350FTT 106,298
BARCLAYS CAPITAL NOMINEES LIMI 734,302
BARCLAYS NOMS MONUMENT R97 13,777
BARCLAYS TRUST CO AS EXEC/ADM 1,128
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 279,176
BLENTPUKQ-16345-CHASE MANHATTA BLENTPUK 538,020
BLEQFDUKQ-16331-CHASE MANHATTA BLEQFDUK 246,435
BLEQPTUEA-16341-CHASE MANHATTA BLEQPTUE 1,610,786
BLEQPTUKQ-16341-CHASE MANHATTA BLEQPTUK 650,710
BLFEDRTT 122,407
BLFEDRTTL-28269-CHASE NOMINEES
BLFEPDTTL-28270-CHASE NOMINEES BLFEPDTT 603,441
BLFEPDUKQ-28270-CHASE NOMINEES BLFEPDUK 270,467
BLUKINTTL-16400-CHASE MANHATTA BLUKINTT 8,433,668
BRKSPFTTL-813168-MIDLAND BANK BRKSPFTT 810,991
BTPOOLEUR-16315-CHASE MANHATTA BTPOOLEU 381,288
BUCAPTUEA-19503-CHASE MANHATTA BUCAPTUE 219,950
BUCAPTUKQ-19503-CHASE MANHATTA BUCAPTUK 124,989
BUDISTUKA-19514-CHASE MANHATTA BUDISTUK 117,060
BUEXINTTL-19520-CHASE MANHATTA BUEXINTT 189,433
BUFIVE350-19508-CHASE MANHATTA BUFIVE35 1,116,144
BUGENRTTL-19507-CHASE MANHATTA BUGENRTT 319,061
BUGENRUEA-19507-CHASE MANHATTA BUGENRUE 564,304
BUINCM350-19505-CHASE MANHATTA BUINCM35 209,020
BUINCMTTL-19505-CHASE MANHATTA BUINCMTT 138,568
BUINVFTTL-19518-CHASE MANHATTA BUINVFTT 493,199
BUKEQUTTL-N3B6-STATE STREET BUKEQUTT 287,623
BUSPCSUKQ-19519-CHASE MANHATTA BUSPCSUK 2,099,471
BUTRSFTTL-19512-CHASE MANHATTA BUTRSFTT 40,008
CAAPENTTL-CVS21-NORTHERN TRUST CAAPENTT 1,475,346
CEULIPTTL-367748-BANK OF NEW Y CEULIPTT 3,257,871
CHATRKTTL-16376-CHASE MANHATTA CHATRKTT 475,611
CHRSTHUKX-16621-CHASE MANHATTA CHRSTHUK 182,152
CHUCOMTTL-31961-CHASE NOMINEES CHUCOMTT 764,562
CLTWORTTL-392177-BANK OF NEW Y CLTWORTT 306,935
COUEUKTTL-392067-BANK OF NEW Y COUEUKTT 4,070,892
DENTSTUKA-16644-CHASE MANHATTA DENTSTUK 344,035
DUNSWRUKA-16612-CHASE MANHATTA DUNSWRUK 132,715
DYFEDXUKA-772823-MIDLAND BANK DYFEDXUK 1,412,840
ESBSUPTTL-218311-BANK OF NEW Y ESBSUPTT 43,074
FFP350TTL-221476-BNY (OCS) NOM FFP350TT 218,995
FFPONGTTL-221428-BANK OF NEW Y FFPONGTT 358,521
FKRUSSTTL-501562755-BANKERS TR FKRUSSTT 2,136,320
FRNUKQTTL-501575013-BANKERS TR FRNUKQTT 333,024
GMITRNTTL-25772-CHASE MANHATTA GMITRNTT 439,014
GODUNYEUR-16281-CHASE MANHATTA GODUNYEU 341,021
INVESTORS BANK AND TRUST CO. 527191 3,056,084
INVESTORS BANK AND TRUST CO. 536747 756,438
INVESTORS BANK AND TRUST CO. 552942 402,745
INVESTORS BANK AND TRUST CO. 573039 92,016
INVESTORS BANK AND TRUST CO. 585934 9,820
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 178,749
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 319,919
NUFGENUKA-16901-CHASE MANHATTA NUFGENUK 123,521
PGUKALTTL-613363-CITIBANK NA PGUKALTT 518,295
POWYSFTTL-16649-CHASE MANHATTA POWYSFTT 41,844
PPPMEDUKQ-8002238-DEUTSCHE BAN PPPMEDUK 127,458
PTMA11TTL-27717-CHASE NOMINEES PTMA11TT 12,195
R C GREIG NOMINEES LIMITED A/C BL1 161,919
R C GREIG NOMINEES LIMITED A/C CM1 40,458
R C GREIG NOMINEES LIMITED GP1 GP1 15,218
R C GREIG NOMINEES LIMITED SA1 SA1 18,461
ROYLIVTTL-LIV02-NORTRUST NOMIN ROYLIVTT 743,448
SCTPEQTLC-SCO06-NORTRUST NOMIN SCTPEOTL 314,532
STHWRKUKQ-16669-CHASE MANHATTA STHWRKUK 79,390
TORFAEUKQ-003002-MELLON NOMINE TORFAEUK 84,024
TPGEQUTTL-6948890986-CITIBANK TPGEOUTT 175,531
TRIBUNTTL-18243-CHASE MANHATTA TRIBUNTT 127,489
UBS LIMITED 583996 446,293
UNIAEQTTL-USF12-NORTHERN TRUST UNIAEOTT 1,837,560
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 3,356,057
ZEBAN NOMINEES LIMITED 1,700
ZEBAN NOMINEES LIMITED 4,780
TOTAL 95,500,218
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
NOT NOTIFIED
11. Date company informed
16 FEBRUARY 2004
12. Total holding following this notification
95,500,218
13. Total percentage holding of issued class following this notification
10.07%
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 10.07%. SHAREHOLDER PREVIOUSLY REPORTED A SHAREHOLDING OF 57,366,187
SHARES (6.05%) ON 13 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
16 FEBRUARY 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 16 February, 2004 By ____/s/ Luke Thomas____
(Signature)*