ABLYNX ANNOUNCES WARRANT EXERCISE

23. April 2014 REGULATED INFORMATION GHENT, Belgium, 23 April 2014 - Ablynx [Euronext Brussels: ABLX] today announced, in conformity with Title II of the Law of 2 May 2007 and the Royal Decree of 14 February 2008, that an additional 85,098 common shares have been issued by the Company in exchange for €451,598.59 as the result of the exercise of warrants by some employees and consultants of the Company. As a result of this transaction, Ablynx now has 49,083,327 shares outstanding. About Ablynx Ablynx is a biopharmaceutical company engaged in the discovery and development of Nanobodies(®), a novel class of therapeutic proteins based on single-domain antibody fragments, for a range of serious human diseases, including inflammation, haematology, oncology and pulmonary disease. Today, the Company has approximately 30 programmes in the pipeline and seven Nanobodies at clinical development stage. Ablynx has ongoing research collaborations and significant partnerships with major pharmaceutical companies including AbbVie, Boehringer Ingelheim, Merck & Co, Merck Serono and Novartis. The Company is headquartered in Ghent, Belgium. More information can be found on www.ablynx.com. For more information, please contact Ablynx: Dr Edwin Moses CEO t:   +32 (0)9 262 00 07 m: +44 (0)7771 954 193 /      +32 (0)473 39 50 68 e:  edwin.moses@ablynx.com Marieke Vermeersch Associate Director Investor Relations t:   +32 (0)9 262 00 82 m: +32 (0)479 49 06 03 e:  marieke.vermeersch@ablynx.com Follow us on Twitter @AblynxABLX Ablynx media relations Consilium Strategic Communications: Mary-Jane Elliott, Amber Bielecka, Lindsey Neville t:   +44 203 709 5700 e:  ablynx@consilium-comms.com pdf version of the press release: http://hugin.info/137912/R/1779285/607936.pdf This announcement is distributed by GlobeNewswire on behalf of GlobeNewswire clients. The owner of this announcement warrants that: (i) the releases contained herein are protected by copyright and other applicable laws; and (ii) they are solely responsible for the content, accuracy and originality of the information contained therein. Source: Ablynx via GlobeNewswire [HUG#1779285]