| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Aug 15, 2025 | Jun 16, 2025 | 000-55517 |
| 4 | Open Document | Open Filing | Feb 27, 2025 | Feb 26, 2024 | 000-55517 | |
| 4 | Open Document | Open Filing | Mar 1, 2023 | Feb 27, 2023 | 000-55517 | |
| 4 | Open Document | Open Filing | Aug 22, 2022 | Mar 22, 2019 | 000-55517 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2018 | Jul 23, 2018 | 000-55517 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2018 | Nov 30, 2017 | 000-55517 |
| SC 13D | Open Document | Open Filing | PUREBASE SCHEDULE 13D FOR A. SCOTT DOCKTER, 11.01.16 | May 5, 2017 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2017 | Nov 30, 2016 | 000-55517 |
| SC 13G | Open Document | Open Filing | PUREBASE SCHEDULE 13G FOR SCOTT DOCKTER, 09.25.15 | Feb 3, 2016 | ||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 8, 2015 | Sep 25, 2015 | 000-55517 |