| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jun 2023 | 09 Jun 2023 | 000-54717 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Mar 2021 | 29 Mar 2021 | 000-54717 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Jul 2019 | 26 Jul 2019 | 000-54717 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jun 2019 | 31 May 2019 | 000-54717 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Sep 2018 | 07 Sep 2018 | 000-54717 |