ABLYNX ANNOUNCES LAUNCH OF PROPOSED GLOBAL OFFERING

ABLYNX ANNOUNCES LAUNCH OF PROPOSED GLOBAL OFFERING
REGULATED INFORMATION - INSIDE INFORMATION

GHENT, Belgium, 17 October 2017 - Ablynx NV [Euronext Brussels: ABLX; OTC: ABYLY], a late-stage clinical biopharmaceutical company utilising its proprietary Nanobody(R) platform to develop treatments for a broad range of therapeutic indications with an unmet medical need, announced today that it intends to offer and sell, subject to market and other conditions, approximately $175 million of its ordinary shares in a global offering, which is comprised of a public offering in the United States and Canada of ordinary shares in the form of American Depositary Shares ("ADS"), and an offer of ordinary shares in Europe and countries outside of the United States and Canada in a concurrent private placement. Investors other than qualified investors under applicable law will not be eligible to participate in this private placement.