| 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 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 23, 2019 | Dec 19, 2019 | 001-16317 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 5, 2019 | Mar 1, 2019 | 001-34464 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 1, 2019 | Jan 31, 2019 | 001-35374 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 16, 2018 | Aug 14, 2018 | 001-16317 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2018 | May 15, 2018 | 001-34464 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2018 | May 15, 2018 | 001-34464 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2018 | Mar 1, 2018 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 2, 2018 | Jan 31, 2018 | 001-35374 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2017 | Feb 28, 2017 | 001-35374 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Mar 8, 2017 | Feb 1, 2017 | 001-35374 |