Holding(s) in Company

Genus PLC
07 June 2007


                                                                    

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES


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

Genus plc


2. Reason for the notification (please state Yes/No): (   )

An acquisition or disposal of voting rights:                               (   )

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

An event changing the breakdown of voting rights:                          (   )

Other (please specify) :                                                   ( x )

A subsidiary of Prudential plc no longer has a notifiable interest
 
3. Full name of person(s) subject to the notification obligation:

Prudential plc group of companies
 

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
if different):

31 May 2007
 

6. Date on which issuer notified:

07 June 2007
 

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

See item 13
 

8. Notified details:


 


A: Voting rights attached to shares

 
Class/type of shares            Situation previous to  
if possible using the           the Triggering         
ISIN CODE                       transaction        
                       Number of shares       Number of voting Rights 

GB0002074580            4,141,674               4,141,674

 

                     Resulting situation after the triggering transaction 
 
Class/type of shares Number of shares  Number of voting rights    % of voting rights  
if possible using                                                                 
the ISIN CODE                                                                         
                     Direct  Indirect  Direct     Indirect        Direct    Indirect  

GB0002074580        3,675,674          3,675,674                   6.58%
 

B: Financial Instruments

Resulting situation after the triggering transaction 

Type of     Expiration Date  Exercise/Conversion Number of voting     % of voting     
financial                    Period/ Date        rights that may be   rights          
instrument                                       acquired if the                      
                                                 instrument is                        
                                                 exercised/                           
                                                 converted.                           

 
N/A             N/A                N/A                 N/A              N/A

Total (A+B)
Number of voting rights       % of voting rights 

3,675,674                         6.58%
 

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

Prudential plc (parent Company)

M&G Group Limited (wholly owned subsidiary of Prudential plc)

M&G Limited (wholly owned subsidiary of M&G Group Limited)

M&G Investment Management Limited (wholly owned subsidiary of M&G Limited)
 


Proxy Voting:

 
10. Name of the proxy holder:

N/A
 

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

N/A
 

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

N/A
 

13. Additional information:

M&G Securities Limited (wholly owned subsidiary of M&G Limited) no longer has a 
notifiable interest  - now 'below 5%'
 

14. Contact name:

Emma Thompson
 

15. Contact telephone number:

020 7548 2293






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