| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jul 2023 | 13 Jul 2023 | 001-41698 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Jan 2022 | 24 Jan 2022 | 000-51378 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jun 2020 | 19 Jun 2020 | 000-51378 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Dec 2018 | 07 Dec 2018 | 000-51378 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jul 2018 | 11 Jul 2018 | 000-51378 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Apr 2016 | 21 Jan 2016 | 000-51378 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Oct 2015 | 23 Oct 2015 | 000-51378 |