| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 18, 2022 | Jan 18, 2022 | 001-39868 | |
| 4 | Open Document | Open Filing | Jan 10, 2022 | Jan 6, 2022 | 001-39868 | |
| 4 | Open Document | Open Filing | Jan 14, 2021 | Jan 12, 2021 | 001-39868 | |
| 3 | Open Document | Open Filing | Jan 14, 2021 | Jan 12, 2021 | 001-39868 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 | Sep 23, 2014 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 17, 2014 | Sep 15, 2014 | 001-34887 |