| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2021 | 29 Dec 2021 | 001-07891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Sep 2021 | 23 Sep 2021 | 001-07891 |
| 4 | Open Document | Open Filing | FORM 4 - | 28 Sep 2020 | 24 Sep 2020 | 001-07891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Sep 2019 | 26 Sep 2019 | 001-07891 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Oct 2018 | 16 Oct 2018 | 001-07891 |