Announcement








                  Company Merrill Lynch International
                  TIDMTTP
                  Headline EMM Disclosure
                  Released 12:53 26 Feb 2003
                  Number 0102I






      FORM 38.5 (SUMMARY)

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Name of EMM Merrill Lynch International
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Telephone number 020 7996 1038
      Please see attached disclosure of dealings under Rule 38.5 in the
      securities of the following companies:
      25 February 2003
      Celltech Group Plc - Ordinary
      Celltech Group Plc - Contract for Difference
      Celltech Group Plc - ADR
      Oxford Glycosciences Plc - Common
      Cambridge Antibody Tech Group - Common
      AMENDMENT
      state which element(s) of disclosure was incorrect:


      In the case of option business or dealings in derivatives full details
      should be given on a separate sheet so that the nature of the dealings
      can be fully understood. For options this should include the number of
      securities under option, the exercise period (or in the case of
      exercise, the exercise date), the exercise price and any option money
      paid or received. For derivatives this should include, at least, the
      number of reference securities to which they relate (when relevant),
      the maturity date (or if applicable the closing out date) and the
      reference price.
      For full details of disclosure requirements see Rules 8 and 38 of the
      Code. If in doubt contact the Monitoring
      Section of the Panel, Tel. No: 0171 638 0129

      FORM 38.5

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Dealing in Oxford Glycosciences Plc
      Class of security Common
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Name of EMM Merrill Lynch International
      Name of offeree/offeror with whom connected Cambridge Antibody Tech
      Group
      Number of securities purchased 3,415
      Highest price paid* GBP1.92
      Lowest price paid* GBP1.92
      Number of securities sold Nil
      Highest price paid *n/a
      Lowest Price Paid *n/a
      *Currency must be stated


      FORM 38.5

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Dealing in Celltech Group Plc
      Class of securityADR
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Name of EMM Merrill Lynch International
      Name of offeree/offeror with whom connected Cambridge Antibody
      Technology Group Plc
      Number of securities purchased 70,000
      Highest price paid* USD10.81
      Lowest price paid* USD10.81
      Number of securities sold Nil
      Highest price paid *n/a
      Lowest Price Paid *n/a
      *Currency must be stated

      FORM 38.5

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Dealing in Celltech Group Plc
      Class of security Contract for Difference
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Name of EMM Merrill Lynch International
      Name of offeree/offeror with whom connected Cambridge Antibody
      Technology Group Plc
      Expiry Date 22 November 2003

      Buy to Close
      Number of securities purchased Nil
      Highest Price Paid *n/a
      Lowest Price Paid *n/a
      Number of securities sold 6,600
      Highest price paid* USD5.05
      Lowest price paid* USD5.05
      *Currency must be stated



      FORM 38.5

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Dealing in Celltech Group Plc
      Class of security Ordinary
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Name of EMM Merrill Lynch International
      Name of offeree/offeror with whom connected Cambridge Antibody
      Technology Group Plc
      Number of securities purchased 25,115
      Highest price paid* GBP3.28
      Lowest price paid* GBP3.21
      Number of securities sold 156,692
      Highest price paid* GBP3.26
      Lowest price paid* GBP3.21
      *Currency must be stated



      FORM 38.5

      Lodge with Company Announcements Office and the Panel. Use a separate
      form for each class of securities in which dealings have been made.

      CONNECTED EXEMPT MARKET-MAKERS:

      DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS
      Dealing in Cambridge Antibody Tech Group
      Class of security Common
      Date of disclosure 26 February 2003
      Date of dealing 25 February 2003
      Name of EMM Merrill Lynch International
      Name of offeree/offeror with whom connected Cambridge Antibody Tech
      Group
      Number of securities purchased 2,668
      Highest price paid* GBP4.27
      Lowest price paid* GBP4.07
      Number of securities sold Nil
      Highest price paid*n/a
      Lowest Price Paid*n/a
      *Currency must be stated

END