| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13D/A | Open Document | Open Filing | 24 Jan 2025 | |||
| 4 | Open Document | Open Filing | 14 Jan 2025 | 10 Jan 2025 | 000-55695 | |
| 4 | Open Document | Open Filing | 13 Jul 2022 | 24 Feb 2022 | 000-55695 | |
| 4 | Open Document | Open Filing | 19 May 2020 | 19 Feb 2020 | 000-55695 | |
| 4 | Open Document | Open Filing | 23 Dec 2019 | 24 Sep 2019 | 000-55695 | |
| 4 | Open Document | Open Filing | 23 Dec 2019 | 09 Dec 2019 | 000-55695 | |
| 4 | Open Document | Open Filing | 11 Jan 2018 | 10 Jan 2018 | 000-55695 | |
| 3 | Open Document | Open Filing | 08 Aug 2017 | 02 Aug 2017 | 000-55695 | |
| SC 13D | Open Document | Open Filing | 08 Aug 2017 |