Holding(s) in Company

TR-1(i):               notification of major interests in shares


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

Tullett Prebon plc

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

An acquisition or disposal of voting rights (Yes)
                                                               
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: ( )

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

Aviva plc & its subsidiaries

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

BNY Norwich Union Nominees Limited (4,292,831)*
Chase GA Group Nominees Limited (10,450,313)*
Chase Nominees Limited (830,818)*
CUIM Nominee Limited (3,089,527)*

*denotes direct interest

Chase Nominees Limited (1,072,831)
CUIM Nominee Limited (176,692)
Vidacos Nominees Limited (2,288,391)

5. Date of the transaction and date on which the threshold is crossed or
reached (v): 12 February 2008

6. Date on which issuer notified: 13 February 2008

7. Threshold(s) that is/are crossed or reached:               
9% to 8% Change at Direct Interest Level.

8. Notified details:                                                         
                                                                             
A: Voting rights attached to shares

Class/type of shares
if possible using the ISIN CODE     Situation previous to the Triggering
                                    transaction (vi)  

 
GB00B1H0DZ51        Number of Shares    Number of Voting Rights (viii)

                    23,089,403          23,089,403

  
Class/type of shares

if possible using the ISIN CODE    Resulting situation after the
                                   triggering transaction(vii)

                                         
GB00B1H0DZ51  Number of shares Number of voting rights (ix)  % of voting rights

              Direct           Direct (x)   Indirect (xi)    Direct   Indirect

              18,663,489       18,663,489   3,537,914        8.76%    1.66%    

                                                                                  
                                                                                  
B: Financial Instruments                                                          
                                                                                  
Resulting situation after the triggering transaction (xii)                        
                                                                                  
Type of          Expiration  Exercise/           Number of voting     % of voting 
financial        date (xiii) Conversion  Period/ rights that may be   rights      
instrument                   Date (xiv)          acquired if the                  
                                                 instrument is                    
                                                 exercised/                       
                                                 converted.                       
                                                                                  
                                                                                   
Total (A+B)                                                                    
                                                                               
Number of voting rights                % of voting rights                      
                                                                               
22,201,403                             10.42%                                  
                                                                               

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

See Section 4.

Proxy Voting:

10. Name of the proxy holder:  See Section 4.

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:        Figures are based on a total number of
                                   voting rights of 212,968,819

14. Contact name:                  Diane Thirkettle

15. Contact telephone number:      01603 687803