Holding(s) in Company

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

Filtrona plc

2. Reason for notification (yes/no)

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached 

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):______________

3. Full name of person(s) subject to the notification obligation:

OppenheimerFunds, Inc (OFI)

4. Full name of shareholder(s) (if different from 3.):

5. Date of the transaction and date on which the threshold is crossed or reached:

25 November 2009

6. Date on which issuer notified:

27 November 2009

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

4% (increase to 4.1274%)

8. Notified details:

Registered Office

Avebury House

201-249 Avebury Boulevard

Milton Keynes

Buckinghamshire, MK9 1AU

Registered Number: 05444653

T: +44 (0) 1908 359100

F: +44 (0) 1908 359120

Company Secretary: Jon Green

A: Voting rights attached to shares

Class/type of shares 

if possible using the ISIN CODE

Situation previous to the Triggering transaction 

Resulting situation after the triggering transaction

Number of Shares 

Number of Voting Rights 

Number of shares 

Number of voting rights

Percentage of voting rights

Direct  

Indirect 

Direct

Indirect

(GB00B0744359) 

OFI

6,562,186

6,562,186

8,488,520

8,488,520

4.1274%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction 

Type of financial instrument 

Expiration date 

Exercise/ Conversion Period/ Date 

Number of voting rights that may be acquired if the instrument is exercised/ converted. 

Percentage of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise / conversion

Number of voting rights instrument refers to 

% of voting rights

Total (A+B+C)

Number of voting rights

% of voting rights

OFI: 8,488,520

OFI: 4.1274%

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

Massachusetts Mutual Life Insurance Company (MassMutual) is the Parent Company of OppenheimerFunds, Inc (OFI). OFI owns, as of November 25, 2009, 8,488,520 shares equal to 4.1274%. This calculation is based on outstanding shares of 205,662,191.

Proxy Voting:

10. Name of the proxy holder:

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

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

Patricia Kendall

Filtrona plc

15. Contact telephone number:

01908 359100