RNS Number:5213M
BRIT Insurance Holdings PLC
19 June 2003


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

BRIT INSURANCE HOLDINGS PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

AMVESCAP PLC AND SUBSIDIARIES


3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

AS PER Q2. SUBSIDIARY COMPANIES OF AMVESCAP HAVE A LARGE NUMBER OF PORTFOLIO
MANAGEMENT CLIENTS FOR WHOM THEY ACT AS INVESTMENT MANAGER AND INVESTMENT 
ADVISOR AND BY VIRTUE OF SECTION 203 OF THE COMPANIES ACT 1985 AMVESCAP IS 
DEEMED TO HAVE THE SAME INTEREST IN THE SHARES.


4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

VIDACOS NOMINEES LTD (150,404,147) (SEE Q14)
HSBC NOMINEES LTD (21,420,033)
BANK OF NEW YORK (6,416,958)
NORTHERN TRUST NOMINEES LIMITED (3,382,470)
CHASE NOMINEES LTD (2,075,537)


5)   Number of shares/amount of stock acquired.
N/A


6)   ( N/A %) of issued Class


7)   Number of shares/amount of stock disposed

6,340,000


8)   ( 0.65 %) of issued Class


9)   Class of security

ORDINARY SHARES OF 25P


10)  Date of transaction

16 JUNE 2003


11)  Date company informed

18 JUNE 2003


12)  Total holding following this notification

183,699,145

               
13)  Total percentage holding of issued class following this notification

              18.89%
(BASED ON ISSUED SHARE CAPITAL OF 972,544,446 ORDINARY SHARES OF 25P)
(EXCLUDES ANY CONVERSION OF CONVERTIBLE UNSECURED SUBORDINATED LOAN STOCK 2008 
TO ORDINARY SHARES)


14)  Any additional information

OF THE SHARES REGISTERED IN THE NAME OF VIDACOS NOMINEES LTD INVESCO PERPETUAL 
HIGH INCOME FUND IS INTERESTED IN 101,132,833 SHARES (10.40% OF ISSUED CLASS AS 
DEFINED IN Q13).
INVESCO PERPETUAL INCOME FUND IS INTERESTED IN 35,138,045 SHARES (3.61%).


15)  Name of contact and telephone number for queries

LUCIE GILBERT
020 7984 8664


16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification 19 JUNE 2003


                      This information is provided by RNS
            The company news service from the London Stock Exchange

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