argenx SE

Report Publication Announcement • May 2, 2023

argenx to Present at BofA Securities 2023 Health Care Conference

May 2, 2023

Amsterdam, the Netherlands – argenx (Euronext & Nasdaq: ARGX), a global immunology company committed to improving the lives of people suffering from severe autoimmune diseases, today announced that members of management will participate in a fireside chat at the BofA Securities 2023 Health Care Conference on Tuesday, May 9, 2023, at 8:00 a.m. P.T. in Las Vegas, NV.

A live webcast of the fireside chat may be accessed on the Investors section of the argenx website at argenx.com/investors. A replay of the webcast will be available on the argenx website for approximately 90 days following the fireside chat.

About argenx

argenx is a global immunology company committed to improving the lives of people suffering from severe autoimmune diseases. Partnering with leading academic researchers through its Immunology Innovation Program (IIP), argenx aims to translate immunology breakthroughs into a world-class portfolio of novel antibody-based medicines. argenx developed and is commercializing the first-and-only approved neonatal Fc receptor (FcRn) blocker in the U.S., the EU and UK, and Japan. The Company is evaluating efgartigimod in multiple serious autoimmune diseases and advancing several earlier stage experimental medicines within its therapeutic franchises. For more information, visithttps://www.argenx.com/ and follow us on LinkedIn, Twitter, and Instagram.

For further information, please contact:

Media:

Erin Murphy emurphy@argenx.com

Investors:

Beth DelGiacco bdelgiacco@argenx.com