| SC 13G/A | 2024-02-13 | Avid Fund Services, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 50,000 | 9.9% | EDGAR |
| SC 13G/A | 2024-02-06 | INTRACOASTAL CAPITAL, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 590 | 0.1% | EDGAR |
| SC 13G/A | 2024-02-05 | Hudson Bay Capital Management LP | HELIUS MEDICAL TECHNOLOGIES, INC. | 60,422 | 7.9% | EDGAR |
| SC 13G | 2023-10-31 | Avid Fund Services, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 54,504 | 9.6% | EDGAR |
| SC 13D/A | 2023-09-11 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 59,597 | 10.5% | EDGAR |
| SC 13G/A | 2023-02-08 | INTRACOASTAL CAPITAL, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 1,500,000 | 5.1% | EDGAR |
| SC 13G | 2023-02-08 | Hudson Bay Capital Management LP | HELIUS MEDICAL TECHNOLOGIES, INC. | 3,021,088 | 9.7% | EDGAR |
| SC 13G | 2022-08-15 | INTRACOASTAL CAPITAL, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 2,500,000 | 8.4% | EDGAR |
| SC 13G/A | 2022-02-14 | COLUMBUS CAPITAL MANAGEMENT LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 324,684 | 8.5% | EDGAR |
| SC 13G | 2022-02-11 | HIRSCHMAN ORIN | HELIUS MEDICAL TECHNOLOGIES, INC. | 255,400 | 6.8% | EDGAR |
| SC 13D/A | 2021-11-16 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 346,062 | 8.7% | EDGAR |
| SC 13D/A | 2021-09-17 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 307,897 | 12.3% | EDGAR |
| SC 13D/A | 2021-06-15 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 276,303 | 11.0% | EDGAR |
| SC 13D/A | 2021-06-03 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 211,053 | 8.7% | EDGAR |
| SC 13G/A | 2021-02-16 | ARMISTICE CAPITAL, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 77,888 | 5.0% | EDGAR |
| SC 13G/A | 2021-02-12 | COLUMBUS CAPITAL MANAGEMENT LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 3,238,228 | 6.2% | EDGAR |
| SC 13G | 2021-01-20 | COLUMBUS CAPITAL MANAGEMENT LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 3,238,228 | 6.2% | EDGAR |
| SC 13G/A | 2021-01-05 | SABBY MANAGEMENT, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 2,592,621 | 5.0% | EDGAR |
| SC 13D | 2020-11-05 | ANDREEFF DANE | HELIUS MEDICAL TECHNOLOGIES, INC. | 3,336,943 | 6.3% | EDGAR |
| SC 13G | 2020-03-30 | ARMISTICE CAPITAL, LLC | HELIUS MEDICAL TECHNOLOGIES, INC. | 1,910,062 | 5.0% | EDGAR |