Company Oxford Glycosciences PLC TIDM OGS Headline Holding(s) in Company Released 12:22 9 Apr 2003 Number 8211J SCHEDULE 10 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) Name of company Oxford GlycoSciences Plc 2) Name of shareholder having a major interest OppenheimerFunds, Inc. 3) Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above or in respect of a non- beneficial interest or in the case of an individual holder if it is a holding of that person's spouse or children under the age of 18 Non-beneficial interest 4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them Various Clients 5) Number of shares/amount of stock acquired N/A 6) Percentage of issued class N/A 7) Number of shares/amount of stock disposed Unknown 8) Percentage of issued class Unknown 9) Class of security Ordinary 5p shares 10) Date of transaction Unknown 11) Date company informed 7 April 2003 12) Total holding following this notification 2,891,085 13) Total percentage holding of issued class following this notification 5.16% 14) Any additional information N/A 15) Name of contact and telephone number for queries Pam Rixon - 44 (0)1235 208022 16) Name of authorised company official responsible for making this notification John Ilett - Company Secretary Date of notification 9 April 2003 END