| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 30, 2022 | Mar 29, 2022 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2021 | May 13, 2021 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2021 | May 6, 2021 | 001-34055 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2021 | Oct 22, 2020 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 22, 2020 | Oct 22, 2020 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2020 | Aug 28, 2020 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2020 | May 8, 2018 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 6, 2018 | Feb 2, 2018 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2017 | Apr 12, 2017 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 8, 2016 | Jul 6, 2016 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2016 | Jun 10, 2016 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2015 | Mar 31, 2015 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 22, 2015 | Dec 17, 2014 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 22, 2014 | Sep 26, 2014 | 001-34055 |