| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2022 | 08 Dec 2022 | 001-13752 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Nov 2022 | 26 Oct 2022 | 001-13752 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Dec 2021 | 10 Dec 2021 | 001-13752 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Oct 2021 | 26 Oct 2021 | 001-13752 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Apr 2021 | 09 Apr 2021 | 001-13752 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Dec 2020 | 08 Dec 2020 | 001-13752 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Dec 2019 | 12 Dec 2019 | 001-13752 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Dec 2018 | 10 Dec 2018 | 001-13752 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2018 | 01 Jan 2018 | 001-13752 |