Aptinyx Inc. announced that effective January 1, 2022, current chief executive officer, Norbert Riedel, will transition to the role of executive chairperson. Following such transition, Dr. Riedel will devote 60% of his working time to the role of executive chairperson. Additionally, effective January 1, 2022, current president and chief operating officer, Andy Kidd, will be promoted to the role of chief executive officer.