Holding(s) in Company

RNS Number:1493N
Chubb PLC
03 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

Ceesail Limited                                         42,570,990
GB Parkview Investments LLC                                500,000

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

3 July 2003


12. Total holding following this notification

43,070,990


13. Total percentage holding of issued class following this notification

5.2%


14. Any additional information

N/A


15. Name of contact and telephone number for queries

K Silverwood  020 7766 4828


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

A J Birchall, Assistant Company Secretary


Date of notification

3 July 2003


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