| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 01 Feb 2023 | 30 Jan 2023 | 001-36055 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 4 TO SCHEDULE 13D | 01 Feb 2023 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13D | 30 Nov 2022 | ||
| 4 | Open Document | Open Filing | 30 Nov 2022 | 28 Nov 2022 | 001-36055 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | 06 Jan 2020 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 15 Nov 2019 | ||
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Feb 2018 | 08 Feb 2018 | 001-36055 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 13 Feb 2018 |