Mattel is trading at $14.82 (+12.19%) with the move appearing aligned with broader risk-on sentiment as Nasdaq gained 0.62%, though the outsized after-hours move remains unexplained.
- It closed at $13.21 on September 22, 2026.
- No verified company-specific announcement, earnings release, or analyst action was identified for September 22.
- Bluey, Thomas & Friends, and American Girl announcements were dated September 15–17.