| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Mar 2023 | 13 Mar 2023 | 001-40186 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Apr 2021 | 23 Apr 2021 | 001-40186 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Mar 2021 | 09 Mar 2021 | 001-40186 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Nov 2012 | 01 Oct 2012 | 033-41752 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2012 | 02 Apr 2012 | 033-41752 |