Acquisition adds first-in-class anti-CD122 Antibody, FB102, to argenx's immunology pipeline August 27, 2026 – 8:50 AM ET Amsterdam, the Netherlands – argenx (Euronext & Nasdaq: ARGX), a global immunology innovation company today announced the successful completion of the acquisition of Forte Biosciences, Inc. (“Forte”) (Nasdaq: FBRX). The acquisition expands argenx's portfolio of differentiated immunology medicines, adding FB102, a first-in-class anti-CD122 antibody with clinical proof-of-concept in vitiligo and celiac disease and potential to address multiple autoimmune diseases.