| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2021 | Dec 7, 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 25, 2021 | Jan 21, 2021 | 001-16317 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 7, 2020 | Jul 1, 2020 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2019 | Feb 22, 2018 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2019 | Mar 1, 2019 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 8, 2019 | Feb 6, 2019 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 1, 2019 | Jan 31, 2019 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2018 | Jul 31, 2018 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2018 | Mar 1, 2018 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 3, 2017 | Jul 31, 2017 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 2, 2016 | Jul 31, 2016 | 001-35374 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 6, 2016 | Apr 6, 2016 | 001-35374 |