🟢 Mirion Technologies is trading 19.58% up in after-hours trading with no fresh catalyst identified

Mirion Technologies is trading at $19.76, up 19.58%, in after-hours trading; no fresh company-specific catalyst has been identified.

• It closed at $16.52 on September 22, 2026, before the sharp extended-hours move.
• Available coverage identified no fresh earnings release, acquisition announcement or other catalyst; its investor-relations page showed no September 22 release.
• Recent JPMorgan optimism and the $250 million buyback are earlier developments, not confirmed explanations. Confidence is low; recheck for delayed news.