| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 2, 2022 | Aug 31, 2022 | 001-40768 | |
| 4 | Open Document | Open Filing | Apr 12, 2021 | Apr 8, 2021 | 000-09047 | |
| 4 | Open Document | Open Filing | Oct 2, 2020 | Sep 30, 2020 | 000-09047 | |
| 4 | Open Document | Open Filing | Nov 7, 2019 | Nov 5, 2019 | 000-09047 | |
| 4 | Open Document | Open Filing | Sep 9, 2019 | Sep 5, 2019 | 000-09047 | |
| 4 | Open Document | Open Filing | Jun 13, 2019 | May 30, 2019 | 000-09047 | |
| 4 | Open Document | Open Filing | Apr 11, 2019 | Apr 9, 2019 | 000-09047 | |
| 4 | Open Document | Open Filing | Mar 1, 2019 | Feb 27, 2019 | 000-09047 | |
| 4 | Open Document | Open Filing | Oct 11, 2018 | Oct 5, 2018 | 000-09047 | |
| 3 | Open Document | Open Filing | Oct 11, 2018 | Jun 27, 2018 | 000-09047 | |
| 3 | Open Document | Open Filing | Jun 29, 2018 | Jun 27, 2018 | 000-09047 |