Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES i                                         
                                                                                        
                                                                                        
                                                                                        
1. Identity of the issuer or the underlying issuer                                      
of existing shares to which voting rights are                  Tullett Prebon plc       
attached:ii                                                                             
                                                                                        
2 Reason for the notification (please tick the appropriate box or boxes):               
                                                                                        
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            Aviva plc & its subsidiaries                                  
notification obligation:                                                                
iii                                                                                     
                                                                                        
4. Full name of           Registered Holder:                                            
shareholder(s)                                                                                        
(if different from 3.):                                                                                          
iv                                                                                        
                          BNY Norwich Union Nominees Limited        796,084*            
                                                                                        
                                                                                        
                          Chase (GA Group) Nominees Limited         4,299,910*          
                                                                                        
                                                                                        
                          Chase Nominees Limited                    242,918*                    
                                                                                
                                                                          
                          CUIM Nominee Limited                      92,432*                    
                                                                              
                                                                                        
                          Vidacos Nominees Limited                  13,936* 
                                                                                        
                                                                                        
                          *denotes direct interest                                               
                                                                                
                                                                                        
                                                                                        
                                       
                                                                                        
5. Date of the                                                                          
transaction and date on                                                                 
which the threshold is    29 January 2010                                               
crossed or                                                                              
reached: v                                                                              
                                                                                        
6. Date on which issuer   01 February 2010                                              
notified:                                                                               
                                                                                        
7. Threshold(s) that is/                                                                
are crossed or            3% to <3% Change at Direct Interest Level                     
reached: vi, vii                                                                        
                                                                                        

8. Notified details:                                                                      
                                                                                          
A: Voting rights attached to shares viii, ix                                              
                                                                                          
Class/type   Situation previous         Resulting situation after the triggering          
of           to the triggering          transaction                                       
shares       transaction                                                                  
                                                                                          
             Number         Number      Number    Number of voting      % of  voting      
if possible  of             of          of shares rights                rights x          
using        Shares         Voting                                                        
the ISIN                    Rights      Direct    Direct xi Indirect    Direct Indirect   
CODE                                                        xii                           
                                                                                          
Ordinary                                                                                  
Shares                                                                                    
             8,458,367      8,458,367   5,445,280 5,445,280 Not         2.53%  Not        
GB00B1H0DZ51                                                Disclosable        Disclosable
                                                                                          
                                                                                                                                                    
                                                                                          
                                                                                          
B: Qualifying Financial Instruments                                                       
                                                                                          
Resulting situation after the triggering transaction                                      
                                                                                          
Type of        Expiration    Exercise/              Number of voting          % of voting 
financial      date xiii     Conversion Period xiv  rights that may be        rights      
instrument                                          acquired if the                       
                                                    instrument is                         
                                                    exercised/ converted.                 
                                                                                          
                                                                                          
                                                                                          
N/A                                                                                          
                                                                                          
                                                                                          
                                                                                          
C: Financial Instruments with similar economic effect to Qualifying Financial             
Instruments xv, xvi                                                                       
                                                                                          
Resulting situation after the triggering transaction                                      
                                                                                          
Type of       Exercise      Expiration Exercise/  Number of voting rights    % of voting  
financial     price         date xvii  Conversion instrument refers to       rights xix,  
instrument                             period                                xx           
                                       xviii                                              
                                                                                          
                                                                                          
                                                                             Nominal Delta     
                                                                                          
                                                                                          
                                                                                          

N/A 

 

Total (A+B+C)                                                                           
                                                                                        
Number of voting rights                  Percentage of voting rights                    
                                                                                        
5,445,280                                2.53%                                          
                                                                                        

 

9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable: xxi                          
                                                                                        
The voting rights are managed and controlled by Aviva Investors Global Services         
Limited, with the following chain of controlled undertakings:-                          
                                                                                        
                                                                                        
                                                                                        
Aviva Investors Global Services Limited:                                                
                                                                                        
Aviva plc (Parent Company)                                                              
                                                                                        
Aviva Group Holdings Limited (wholly owned subsidiary of Aviva plc)                     
                                                                                        
Aviva Investors Holdings Limited (wholly owned subsidiary of Aviva Group                
Holdings Limited)                                                                       
                                                                                        
Aviva Investors Global Services Limited (wholly owned subsidiary of Aviva               
Investors Holdings Limited)                                                             
                                                                                        
                                                                                        
                                                                                        
                                  
                                                                                        
                                                                                        
Proxy Voting:                                                                           
                                                                                        
10. Name of the proxy holder: See Section 4                       
                                                                                        
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:   Figures are based on a total number of voting rights of 215,313,584.  
                                                                            
                                                                                        
14. Contact name:             Neil Whittaker                                       
                                                                                        
15. Contact telephone number: 01603 684420