0001610853 2025-09-24 2025-09-24 0001610853 false 8-K 2025-09-24 HELIUS MEDICAL TECHNOLOGIES, INC. DE 001-38445 36-4787690 642 Newtown Yardley Road Suite 100 Newtown PA 18940 215 944-6100 false false false false Class A Common Stock, $0.001 par value HSDT NASDAQ false