Ark Therapeutics Group plc (LSE: AKT) (‘Ark’ or the ‘Company’) announces that by 11.00 a.m. on 19 May 2006 (today), being the latest time for receipt of application forms and payment in full or settlement of CREST instructions under the Open Offer announced on 27 April 2006, valid applications had been received from Qualifying Shareholders in respect of 16,816,800 New Ordinary Shares, representing 52.76 per cent. of the 31,874,514 New Ordinary Shares available under the Open Offer.