Share Interests

Old Mutual PLC
06 November 2007


REG- Old Mutual plc Holding(s) in Company

6 November 2007

TR-1: Notification of major interests in shares

Ref 74/07

1. Identity of the issuer or the underlying       Old Mutual plc
issuer of existing shares to which voting 
rights are attached        
                         
2. Reason for the notification                    Yes

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):

3. Full name of person(s) subject to the         Lehman Brothers International  
notification obligation:                         (Europe)                      
                         
4. Full name of shareholder(s)                   N/A
(if different from 3.)                                                             
                        
5. Date of the transaction (and date             1/11/07
on which the threshold is crossed or 
reached if different):
                                           
6. Date on which issuer notified                 5/11/07                
                         
7. Threshold(s) that is/are crossed              3%     
or reached:                                                              
                                                                
8. Notified details                              N/A  
                        
A: Voting rights attached to shares
Class/ type of shares and ISIN Code              Ordinary shares of 10p each  
                                                 ISIN GB0007389926   

Number of shares prior to triggering             Below 3%   
action      
  
Number of voting shares prior to                 Below 3%    
triggering action    

Number of voting rights                         Direct 189,156,853 
                                                Indirect N/A  

% of voting rights                              Direct  3.45%
                                                Indirect  N/A   

B: Financial Instruments                     
N/A

Total (A+B) Number of Voting                   % of voting rights 3.45%     
rights: 189,156,853                  
                                                            
                                                          
9. Chain of controlled undertakings            N/A
which the voting rights and/or 
financial instruments are effectively 
held, if applicable

10. Name of proxy holder                       N/A                        
             
11. Number of voting rights proxy              N/A 
holder will cease to hold                                                         
              
12. Date on which proxy holder                 N/A 
will cease to hold voting rights                                                      
             
13. Additional information                     N/A      
             
14. Contact name                               Martin Murray, Company Secretary
            
15. Contact telephone number                   020 7002 7109  
             








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