| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jan 2025 | 21 Jan 2025 | 000-51640 |
| 4/A | Open Document | Open Filing | 25 Jun 2024 | 20 Jun 2024 | 000-51640 | |
| 4 | Open Document | Open Filing | 24 Jun 2024 | 20 Jun 2024 | 000-51640 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 May 2023 | 22 May 2023 | 000-51640 |
| 4 | Open Document | Open Filing | 06 Apr 2023 | 04 Apr 2023 | 000-51640 | |
| 4 | Open Document | Open Filing | 25 Jan 2022 | 21 Jan 2022 | 000-51640 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Feb 2021 | 04 Feb 2021 | 000-51640 |
| 4 | Open Document | Open Filing | 08 Jan 2020 | 06 Jan 2020 | 000-51640 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2019 | 14 Jan 2019 | 000-51640 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Aug 2017 | 25 Aug 2017 | 000-51640 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Aug 2017 | 21 Aug 2017 | 000-51640 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Aug 2017 | 20 Aug 2017 | 000-51640 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 May 2017 | 04 Apr 2017 | 000-51640 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 May 2017 | 01 Apr 2017 | 000-51640 |