| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 23, 2022 | Jun 23, 2022 | 001-34995 | |
| 4/A | Open Document | Open Filing | Apr 28, 2022 | Mar 31, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Apr 4, 2022 | Mar 31, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Mar 17, 2022 | Mar 15, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Jan 14, 2022 | Jan 12, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2021 | Aug 24, 2021 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2021 | Jun 17, 2021 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 15, 2021 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2020 | Jun 17, 2020 | 001-34995 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 14, 2020 | May 7, 2020 | 001-34995 |