Notifiable Share Interest in Maxygen, Inc.
GlaxoSmithKline plc ("GSK") announces that on 10 March 2010 GSK sold its entire holding of 1,433,361 Common shares of Maxygen, Inc. ("Maxygen"), a biopharmaceutical company focused on developing improved versions of protein drugs, located in the United States and whose shares are traded on the NASDAQ Exchange.
Following this transaction, GSK's interest, which was held by its wholly owned subsidiaries Glaxo Group Limited and GlaxoSmithKline Services Unlimited, has reduced from 4.47% to 0% of the outstanding Common shares of Maxygen. The details of this transaction have been disclosed in the Annual Report of Maxygen on Form 10-K filed with the United States Securities and Exchange Commission.
Simon M Bicknell
Company Secretary
12 March 2010