| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 10, 2025 | Jan 8, 2025 | 000-13215 | |
| 4 | Open Document | Open Filing | Feb 8, 2022 | Feb 1, 2022 | 000-13215 | |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Jan 7, 2022 | ||
| 3 | Open Document | Open Filing | Jan 7, 2022 | Oct 19, 2021 | 000-13215 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 23, 2016 | Dec 22, 2016 | 001-37535 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 14, 2016 | Nov 9, 2016 | 001-37535 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 17, 2016 | Sep 21, 2016 | 001-37535 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 15, 2016 | Aug 9, 2016 | 001-37535 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 11, 2016 | Aug 9, 2016 | 001-37535 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Nov 18, 2015 | 001-37535 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 28, 2014 | Aug 27, 2014 | 000-53744 |