Notifiable Share Interest in Addex Pharmaceuticals Ltd
GlaxoSmithKline plc (GSK) announces that on 2 December 2009 S.R. One, Limited, a wholly owned US-registered subsidiary of GSK, sold 2,596 shares of Addex Pharmaceuticals Ltd ("Addex"), an allosteric modulation company located in Switzerland and whose shares are traded on the SWX Swiss Exchange.
GSK's interest, which is held entirely by S.R. One, Limited, now comprises 290,529 shares or 4.95% of Addex. The calculation is based on a total of 5,862,492 shares outstanding in Addex. This decreased interest became disclosable under the rules of the SWX Swiss Exchange Act upon falling below the 5% threshold. GSK is not a primary insider in Addex.
Simon M Bicknell
Company Secretary
7 December 2009