Overview
- Argenx announced a planned transition in which Chief Operating Officer Karen Massey will become chief executive officer and executive director.
- Current CEO Tim Van Hauwermeiren is slated to become non-executive director and chairman, succeeding retiring chair Peter Verhaeghe.
- The leadership changes are contingent on a shareholder vote at the company’s annual meeting on May 6, 2026.
- The company frames the move as a leadership evolution to support its next growth phase, citing Massey’s role in accelerating the VYVGART launch and building its commercial engine.
- Van Hauwermeiren, who has led the company since 2008, said he intends to focus on long-term strategy and board oversight in the chair role.