| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 21, 2021 | Jun 10, 2021 | 001-37899 | |
| 4 | Open Document | Open Filing | Jun 10, 2021 | Jun 9, 2021 | 001-37899 | |
| 4 | Open Document | Open Filing | Aug 10, 2020 | Jul 24, 2020 | 001-37899 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 26, 2020 | May 15, 2020 | 001-37899 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 16, 2018 | Dec 21, 2016 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 26, 2018 | Oct 20, 2017 | 001-37899 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Oct 10, 2017 | ||
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 10, 2017 | Oct 9, 2017 | 000-54758 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 10, 2017 | Oct 9, 2017 | 000-54758 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 10, 2017 | Dec 31, 2016 | 000-54758 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | 001-37899 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G ENVIROMART | Jul 29, 2016 | ||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 29, 2016 | Jul 19, 2016 | 000-54758 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A4 | May 11, 2016 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2015 | Nov 11, 2015 | 000-54758 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A3 | Nov 12, 2015 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A2 | Feb 5, 2015 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2015 | Feb 3, 2015 | 000-54758 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2015 | Jul 14, 2014 | 000-54758 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2015 | Jan 21, 2015 | 000-54758 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jan 23, 2015 | ||
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Jul 24, 2014 | ||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2014 | Jul 14, 2014 | 000-54758 |