Blocklisting Interim Review

RNS Number:7229D
Cambridge Antibody Tech Group PLC
05 October 2004


                                   SCHEDULE 5

                        BLOCKLISTING SIX MONTHLY RETURN


1. Name of company

Cambridge Antibody Technology

2. Name of scheme

Company Share Option Plan

3. Period of return:     From  1 April 2004  to 30 September 2004

4. Number and class of shares(s)
   (amount of stock/debt security)
   not issued under scheme

462,060

5. Number of shares issued/allotted
   under scheme during period

32,131

6. Balance under scheme not yet issued/allotted
   at end of period

429,929

7. Number and class of share(s)
   (amount of stock/debt securities)
   originally listed and the date of admission

129,060 31 March 2004


Please confirm total number of shares in issue at the end of the period
in order for us to update our records

41,109,938


Contact for queries:

Name:       Justin Hoskins
          
Address:    Cambridge antibody Technology
            Milstein Building
            Granta Park
            Cambridge
            CB1 6GH

Telephone:  [phone]



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