X0508 4 2025-07-02 0001610853 HELIUS MEDICAL TECHNOLOGIES, INC. HSDT 0001340555 Walter Blane C/O HELIUS MEDICAL TECHNOLOGIES, INC. 642 NEWTOWN YARDLEY ROAD, SUITE 100 NEWTOWN PA 18940 true false Stock Option (Right to Buy) 9.76 2025-07-02 4 A 0 2600 0 A 2035-07-01 Class A Common Stock 2600 2600 D Grant to the Reporting Person of a stock option under the Issuer's 2022 Equity Incentive Plan. 50% of the options vested immediately upon grant, and the remaining options vest in a series of four (4) successive equal quarterly installments on the last day of each quarter starting on September 30, 2025, subject to the Reporting Person's continued service through each applicable vesting period. /s/ Stephanie Swan, by Power of Attorney 2025-07-03