argenx successfully closes €30 million private placement

News
June 01, 2016

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Breda, the Netherlands / Ghent, Belgium– argenx (Euronext Brussels: ARGX), a clinical-stage biopharmaceutical company focused on creating and developing differentiated therapeutic antibodies for the treatment of cancer and severe autoimmune diseases, today announced that it has successfully closed the €30 million transaction with predominantly US institutional investors it announced on
June 1, 2016. The investors include Aquilo Capital, Burrage Capital, Dafna Capital, MPM Oncology Impact Fund and Perceptive Advisors and certain other existing and new institutional investors. 2,703,000 shares have been issued at € 11.10. The new shares are expected to be admitted to listing on Euronext Brussels next week.

About argenx

argenx combines the diversity of the llama immune system with antibody engineering to advance a clinical pipeline to treat patients with cancer and autoimmune diseases. Our platforms allow us to unlock novel and complex targets and develop antibody-based drugs designed for greater efficacy and longer duration of effect. The strength of our team, our deep understanding of the biology, and our committed collaborations with industry leaders contribute to the success of our journey.

argenx is listed on the Euronext Brussels exchange under the symbol ARGX.

www.argenx.com

For further information, please contact:

Joke Comijn, Corporate Communications Manager

+32 (0)477 77 29 44

+32 (0)9 243 40 70

info@argenx.com

Disclaimer

This announcement does not contain or constitute an offer of, or the solicitation of an offer to buy or subscribe for, securities to any person in the United States, Australia, Canada, Japan or in any jurisdiction to whom or in which such offer or solicitation is unlawful.

This release is not an offer of securities for sale in the United States of America. The securities referred to in this press release have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the Securities Act). Securities may not be offered or sold absent registration or an applicable exemption from registration or in a transaction not subject to the registration requirements of the Securities Act. Any public offering of securities to be made in the United States of America would be made by means of a prospectus and would contain detailed information about the Company and management, as well as financial statements. There will be no public offer of the securities in the United States of America.

Forward-looking Statements

The contents of this announcement include statements that are, or may be deemed to be, forward-looking statements. These forward-looking statements can be identified by the use of forward-looking terminology, including the terms believes, estimates, anticipates, expects, intends, may, will, or should, and include statements argenx makes concerning the intended results of its strategy. By their nature, forward-looking statements involve risks and uncertainties and readers are cautioned that any such forward-looking statements are not guarantees of future performance. argenx’ actual results may differ materially from those predicted by the forward-looking statements. argenx undertakes no obligation to publicly update or revise forward-looking statements, except as may be required by law.