SECURITIES AND EXCHANGE COMMISSION

                     Washington, D.C. 20549

                     _ _ _ _ _ _ _ _ _ _ _ _

                            FORM 6-K

                REPORT of Foreign Private Issuer
            Pursuant to Rule 13a-16 or 15d-16 of the
                Securities Exchange Act of 1934

For the month of: November 2003

                          Filtronic plc
       (Exact name of registrant as specified in charter)

The Waterfront, Salts Mill Road, Saltaire, Shipley West Yorkshire
BD18 3TT, UK
           (Address of principal executive offices)

Indicate by check mark whether the registrant files or will
file annual reports under cover of 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 the 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 _

<Page>

SIGNATURE

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
authorised.

Filtronic plc

Date: November 20, 2003        By:  /s/ Maura Moynihan
                                   _ _ _ _ _ _ _ _ _ _
                          Name:    Maura Moynihan
                           Title:  General Counsel




SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

Filtronic plc

2. Name of shareholder having a major interest

Fidelity International Limited and certain of its
subsidiary companies, also comprising the notifiable
interest of Mr Edward C Johnson 3rd, principal
shareholder of Fidelity International Limited

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

Non-beneficial interest

4. Name of the registered holder(s) and, if more than one
holder,the number of shares held by each of them

See attached schedule

5. Number of shares / amount of stock acquired

760,383

6. Percentage of issued class

1.02%

7. Number of shares / amount of stock disposed

N/a

8. Percentage of issued class

N/a

9. Class of security

Ordinary shares

10. Date of transaction

14 November 2003

11. Date company informed

18 November 2003

12. Total holding following this notification

9,793,166

13. Total percentage holding of issued class following this
notification

13.14%

14. Any additional information



15. Name of contact and telephone number for queries

Maura Moynihan +44 1274 231014

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

Maura Moynihan

Date of notification

20 November 2003

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.


Filtronic plc
Schedule to Schedule 10 20 November 03 - FIL

Registered Holder			Shares Held

Chase Nominees Ltd			5,290,960
Chase Manhatten Bank London	34,063
Nortrust Nominees Ltd		407,780
Bankers Trust				979,962
MSS Nominees Ltd
BT Globenet Nominees Ltd	147,650
RBS Trust Bank				399,560
Citibank					66,850
Bank of New York London		510,451
Northern Trust				360,990
HSBC						1,308,100
Deutche Bank				72,600
Mellon Nominees Ltd			59,600
Bank of New York Brussels	154,600


TOTAL					9,793,166