| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jul 14, 2025 | May 30, 2025 | 001-34970 | |
| 4 | Open Document | Open Filing | Sep 20, 2022 | Sep 1, 2022 | 001-34970 | |
| 4 | Open Document | Open Filing | Jun 2, 2022 | Mar 11, 2022 | 001-34970 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2022 | Jan 20, 2022 | 001-34970 |
| 4 | Open Document | Open Filing | Nov 16, 2021 | Nov 12, 2021 | 000-55802 | |
| 4 | Open Document | Open Filing | May 14, 2021 | May 12, 2021 | 000-55802 | |
| 5 | Open Document | Open Filing | May 27, 2020 | Dec 31, 2019 | 000-55802 | |
| 4 | Open Document | Open Filing | May 27, 2020 | May 19, 2020 | 000-55802 | |
| 4 | Open Document | Open Filing | Sep 17, 2019 | Sep 13, 2019 | 000-55802 | |
| 3 | Open Document | Open Filing | Jun 23, 2017 | Jun 23, 2017 | 000-55802 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 2, 2017 | Apr 28, 2017 | 001-34643 |
| SC 13D | Open Document | Open Filing | SC 13D | Jul 25, 2016 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 1, 2015 | Sep 29, 2015 | 001-34643 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 10, 2015 | Aug 6, 2015 | 001-34643 |
| 4 | Open Document | Open Filing | CHARLES BENTON OWNERSHIP DOCUMENT | Jun 25, 2014 | Apr 24, 2014 | 001-34643 |