RNS Number:6236N
Chubb PLC
16 July 2003


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Name of company

Chubb plc


2. Name of shareholder having a major interest

United Technologies Corporation


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

Notification of interests in shares held by Ceesail Limited and GB Parkview
Investments LLC


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

Registered Name                                                    Shares held

Vidacos Nominees Limited on behalf of Ceesail Limited               82,570,990
Vidacos Nominees Limited on behalf of GB Parkview Investments          500,000
LLC

5. Number of shares / amount of stock acquired

Not disclosed


6. Percentage of issued class

N/A


7. Number of shares / amount of stock disposed

Not disclosed


8. Percentage of issued class

N/A


9. Class of security

Ordinary shares of 36p each


10. Date of transaction

Not disclosed


11. Date company informed

16 July 2003


12. Total holding following this notification

83,070,990


13. Total percentage holding of issued class following this notification

10.02%


14. Any additional information

N/A


15. Name of contact and telephone number for queries

A J Birchall  020 7766 4827


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

A J Birchall, Assistant Company Secretary


Date of notification

16 July 2003


The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.



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

END
HOLRFMITMMMBBTJ

x