Holding(s) in Company

Filtronic PLC
13 July 2007



TR-1: Notifications of Major Interests in Shares


1. Identity of the issuer or the underlying issuer of existing     Filtronic plc
shares to which voting rights are attached:


2. Reason for notification (yes/no)


An acquisition or disposal of voting rights                                                 Yes


An acquisition or disposal of financial instruments which may result in the acquisition of  No
shares already issued to which voting rights are attached.


An event changing the breakdown of voting rights                                            No


Other (please specify): ______________                                                      N/A




3. Full name of person(s) subject to notification       Aviva plc & its subsidiaries
obligation:


4. Full name of shareholder(s) (if different from 3):   BNY Norwich Union Nominees Limited - 453,259
                                                        Chase GA Group Nominees Limited - 1,331,005
                                                        Chase Nominees Limited - 135,961
                                                        CUIM Nominee Limited - 380,830



5. Date of transaction (and date on which the threshold 6 July 2007
is crossed or reached if different):


6. Date on which issuer notified:                       9 July 2007


7. Threshold(s) that is/are crossed or reached:         3%


8. Notified Details


A: Voting rights attached to shares
Class/type of   Situation previous to Resulting situation after the triggering transaction
shares          the triggering
                transaction


If possible     Number of Number of   Number of   Number of voting rights    Percentage of voting
                shares    voting      shares                                 rights
use ISIN                  rights      Direct      Direct       Indirect      Direct       Indirect
code                                  Indirect

Ordinary        <3%       <3%         2,301,055   2,301,055    Not           3.10%        Not
                                                               Disclosable                Disclosable
GB0003362992


B: Financial Instruments

Resulting situation after the triggering transaction

Type of         Expiration date   Exercise/         No. of voting rights that    Percentage of voting
financial                                           may be acquired (if the      rights
instrument                        conversion period instrument exercised/
                                  /date             converted)
N/A             N/A               N/A               N/A                          N/A



Total (A+B)

Number of voting rights                                 Percentage of voting rights

2,301,055                                               3.10%




9. Chain of controlled undertakings through which the voting rights and/or the financial instruments
are effectively held, if applicable:

See Section 4




Proxy Voting:


10. Name of proxy holder:                               See Section 4


11. Number of voting rights proxy holder will cease to  N/A
hold:


12 Date on which proxy holder will cease to hold voting N/A
rights:


13. Additional information:                             Figures are based on a total number of voting
                                                        rights of 74,323,093.


14. Contact name:                                       Neil Whittaker


15. Contact telephone name:                             01603 684420




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