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
N/a

6. Percentage of issued class
N/a

7. Number of shares / amount of stock disposed
196,387

8. Percentage of issued class
0.26%

9. Class of security
Ordinary 10p shares

10. Date of transaction
1 February 2006

11. Date company informed
6 February 2006

12. Total holding following this notification
12,846,031

13. Total percentage holding of issued class following this notification
17.16%

14. Any additional information

1 5. Name of contact and telephone number for queries
Maura Moynihan, 01274 231014

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

Date of notification
6 February 2006

Registered holder Shares held
Nortrust Noms Ltd 6,278
Pruclt HSBC GIS Nom(UK) PAC AC 6,130,984
Pruclt HSBC GIS Nom(UK) PPL AC 777,687
Bank of New York (Noms) Ltd (636922) 375,072
Nortrust Nominee Ltd MHF01 AC 12,676
Nortrust Nominee Ltd MKK01 AC 4,214,606
Nortrust Nominee Ltd MEB01 AC 1,103,684
Nortrust Nominee Ltd MEL01 AC 225,044