| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 29 Sep 2021 | 21 Sep 2021 | 000-05278 | |
| 4 | Open Document | Open Filing | 22 Jul 2021 | 16 Jul 2021 | 000-05278 | |
| 4 | Open Document | Open Filing | 24 Nov 2020 | 20 Nov 2020 | 000-05278 | |
| 3 | Open Document | Open Filing | 03 Nov 2020 | 19 Sep 2019 | 000-05278 |