NYXH ▼ -0.7% - Nyxoah SA $NYXH - Nyxoah Announces Chief Financial Officer Transition Nyxoah shares declined 0.7% following the company's announcement of a change in its chief financial officer position. CFO transitions can create near-term uncertainty as investors assess the leadership continuity and strategic direction under new financial management. 21-SEP-2026 04:01 PM ET