| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 18, 2021 | Sep 24, 2021 | 001-37748 |
| SC 13G | Open Document | Open Filing | SC 13G | Feb 13, 2017 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2016 | Apr 27, 2016 | 001-37748 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 21, 2016 | Apr 21, 2016 | 001-37748 |
| D/A | Open Document | Open Filing | Feb 11, 2015 | 021-211985 | ||
| D | Open Document | Open Filing | Feb 14, 2014 | 021-211985 |