Announcement CompanyMerrill Lynch International TIDMTTP HeadlineEMM Disclosure Released11:31 3 Feb 2003 Number9512G 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 03 February 2003 Date of dealing31 January 2003 Telephone number 020 7996 1038 Please see attached disclosure of dealings under Rule 38.5 in the securities of the following companies: 31 January 2003 Regus Plc - Ordinary Cambridge Antibody Tech Group - Common Cambridge Antibody Tech Group - Contract for Difference Morrison (W.M) Supermarkets - Common Oxford Glycosciences Plc - 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 inRegus Plc Class of securityOrdinary Date of disclosure 03 February 2003 Date of dealing31 January 2003 Name of EMM Merrill Lynch International Name of offeree/offeror with whom connectedRegus Plc Number of securities purchased31,033 Highest price paid* GBP0.17 Lowest price paid* GBP0.17 Number of securities soldNil 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 inMorrison (W.M) Supermarkets Class of securityCommon Date of disclosure 03 February 2003 Date of dealing31 January 2003 Name of EMM Merrill Lynch International Name of offeree/offeror with whom connectedTrackdean Investments Ltd Number of securities purchased1,063,242 Highest price paid* GBP1.66 Lowest price paid* GBP1.59 Number of securities sold1,027,025 Highest price paid* GBP1.68 Lowest price paid* GBP1.59 *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 inOxford Glycosciences Plc Class of securityCommon Date of disclosure 03 February 2003 Date of dealing31 January 2003 Name of EMM Merrill Lynch International Name of offeree/offeror with whom connected Cambridge Antibody Tech Group Number of securities purchased5,000 Highest price paid* GBP1.66 Lowest price paid* GBP1.66 Number of securities soldNil 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 inCambridge Antibody Tech Group Class of securityContract for Difference Date of disclosure 03 February 2003 Date of dealing31 January 2003 Name of EMM Merrill Lynch International Name of offeree/offeror with whom connected Cambridge Antibody Tech Group Expiry Date28 October 2003 Sell To Open Number of securities purchased3,000 Highest price paid* USD7.57 Lowest price paid* USD7.57 Number of securities soldNil 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 inCambridge Antibody Tech Group Class of securityCommon Date of disclosure 03 February 2003 Date of dealing31 January 2003 Name of EMM Merrill Lynch International Name of offeree/offeror with whom connectedCambridge Antibody Tech Group Number of securities purchased67,713 Highest price paid* GBP4.70 Lowest price paid* GBP4.60 Number of securities sold56,805 Highest price paid* GBP4.70 Lowest price paid* GBP4.60 *Currency must be stated