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: March 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:  March 7, 2003         By:  /s/ Fiona Pick
                                   _ _ _ _ _ _ _ _ _ _
                           Name:   Fiona Pick
                           Title:  Solicitor and Assistant
                                   Company Secretary





                   SCHEDULE 10

     NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

Filtronic plc

2. Name of shareholder having a major interest

Prudential plc and certain of its subsidiary companies

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

904,491

6. Percentage of issued class

1.21%

7. Number of shares / amount of stock disposed

N/a

8. Percentage of issued class

N/a

9. Class of security

Ordinary 10p shares

10. Date of transaction

5 March 2003

11. Date company informed

6 March 2003

12. Total holding following this notification

10,465,737

13. Total percentage holding of issued class following this
notification

14.08%

14. Any additional information



15. Name of contact and telephone number for queries

Fiona Pick, 01274 231166

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

Fiona Pick

Date of notification

7 March 2003


                     Filtronic plc
         Schedule to Schedule 10 - 7 March 2003

Registered holder             Shares held

Chase Noms Ltd	                    70,000
Clydesdale Bk Noms Ltd MGA        558,146
Clydesdale Bk Noms Ltd MGG      2,045,000
Clydesdale Bk Noms Ltd MGIN       240,000
Clydesdale Bk Noms Ltd MGT          7,400
Clydesdale Bk Noms Ltd MGZ        124,839
Dexia Bank Intl                   158,906
Nortrust Noms Ltd                   2,000
Pruclt HSBC GIS Nom(UK) PAC AC  7,040,987
Pruclt HSBC GIS Nom(UK) PPL AC    126,117
PSIT2 US High Tech Fund            92,345



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