30 December, 2011

ICON plc

Purchase of Own Securities

Further to the announcement on 22 November, 2011 of a share repurchase programme, ICON plc (“the Company”) announces that on 29 December, 2011 it purchased for cancellation 24,351 Ordinary Shares, at an average price of $16.8833.

Following the cancellation of these shares, the Company will have 60,135,903 Ordinary Shares in issue.