Rule 8 - (Cambridge Antibody)

RNS Number:2155H
JP Morgan Investment Management Inc
07 February 2003




                                                                    FORM 8.1/8.3


        Lodge with RNS (which will publicise and copy to the Panel).

        Use separate form for each class of securities in which dealings have
        been made.


     Date of disclosure ......7th February 2003


DISCLOSURE UNDER RULES 8.1(a), 8.1(b)(i) AND 8.3

OF THE CITY CODE ON TAKE-OVERS AND MERGERS


Date of dealing      6th February 2003


Dealing in      Cambridge Antibody Technology Group Plc     (name of company)


(1) Class of securities (eg ordinary shares)       Ordinary Shares


(2)

     Amount bought           Amount Sold                          Price per unit

                                   6,105                               4.745 GBP



(3) Resultant total of the same class owned or controlled

(and percentage of class)      ............................. 373,607     (1.03%)


(4) Party making disclosure       J.P. Morgan Investment Management Inc


(5) EITHER     (a) Name of purchaser/vendor (Note 1)

OR      (b) If dealing for discretionary client(s), name of fund management
organisation


                  J.P. Morgan Investment Management Inc


(6) Reason for disclosure (Note 2)

     (a) associate of      (i) offeror (Note 3)           NO

     (ii) offeree company           NO



     Specify which category or categories of associate (1-8)

     If category (8), explain


     (b) Rule 8.3 (ie disclosure because of ownership or control of 1% or more
of the class of relevant securities dealt in)      YES




Signed, for and on behalf of the party named in (4) above



(Also print name of signatory)      Sara Moth

Telephone and extension number      020 7325 5808


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

DCCEAFAXESNDEFE