RNS Number:0161O
Chubb PLC
28 July 2003


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Name of company

Chubb plc


2. Name of shareholder having a major interest

Merrill Lynch & Co., Inc


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 includes interests held by Merrill Lynch Investment Managers Ltd.,
ML Invest Holdings Limited, ML Invest, Inc, Merrill Lynch Group Inc. and Merrill
Lynch & Co., Inc. (which are holding companies of Merrill Lynch Investment
Managers Ltd.)


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

Not disclosed

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

25 July 2003


12. Total holding following this notification

Not disclosed


13. Total percentage holding of issued class following this notification

Not disclosed


14. Any additional information

Merrill Lynch & Co., Inc. has notified Chubb plc that it no longer has a
notifiable interest in Chubb plc.


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

28 July 2003


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for loss of business or loss of profits) arising in contract, tort or otherwise
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