Announcement Company GoldmanSachs International TIDMTTP Headline EMM Disclosure Released 11:22 6 Mar 2003 Number 3789I EMM DISCLOSURE FORM 38.5 (SUMMARY) Lodge with a RIS and the Takeover 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 Goldman Sachs International Date of disclosure 06 March 2003 (late disclosure) Contact name Stuart Mclerie Telephone number +44 207-774-8136 Please see attached disclosure of dealings under Rule 38.5 in the securities of the following companies: Oxford Glycosciences plc AMENDMENT If the attached Rule 38.5 disclosure is to amend a previous disclosure, pleasestate which element(s) of previous 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 the disclosure requirements see Rules 8 and 38 of the Code. If in doubt contact the Monitoring Section of the Panel, Tel. No: 020 7638 0129. Email: monitoring@disclosure.org.uk FORM 38.5 CONNECTED EXEMPT MARKET-MAKERS: DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS Dealing in (name of company) Oxford Glycosciences plc Class of security Contract For Differences Expiration 04 March 2013 Date of disclosure 06 March 2003 Date of dealing 04 March 2003 Name of EMM Goldman Sachs International Name of offeree/offeror with whom connected Oxford Glycosciences plc Total number of securities purchased Highest price paid* Lowest price paid* Total number of securities sold 364,259 (customer bought to open) Highest price received* 1.92288 GBP Sterling Lowest price received* 1.92288 GBP Sterling *Currency must be stated END