| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2022 | May 25, 2022 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2021 | May 19, 2021 | 001-35312 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | May 20, 2020 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2019 | May 23, 2019 | 001-35312 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2018 | May 25, 2018 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2018 | May 16, 2018 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 19, 2018 | Jan 17, 2018 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 6, 2017 | Jun 2, 2017 | 001-35312 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2017 | Feb 2, 2017 | 001-35312 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2017 | Feb 2, 2017 | 001-35312 |