| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2021 | Jun 10, 2021 | 001-34177 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2020 | Jun 18, 2020 | 001-34177 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 10, 2019 | May 8, 2019 | 001-34177 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2018 | May 10, 2018 | 001-34177 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2017 | May 17, 2017 | 001-34177 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2016 | Dec 7, 2016 | 001-34177 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Oct 26, 2016 | Oct 18, 2016 | 001-34177 |