| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 13, 2022 | Apr 11, 2022 | 001-39658 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 13, 2022 | Apr 11, 2022 | 001-39658 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2018 | Jul 2, 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2018 | Mar 15, 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 14, 2018 | Feb 12, 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2017 | Mar 15, 2017 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2017 | Mar 2, 2017 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 18, 2016 | Apr 15, 2016 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 29, 2016 | Feb 25, 2016 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 20, 2015 | Oct 19, 2015 | 000-50167 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Oct 20, 2015 | Oct 19, 2015 | 000-50167 |