| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | 23 Jun 2023 | |||
| 4 | Open Document | Open Filing | 23 Jun 2023 | 22 Jun 2023 | 000-06506 | |
| 5 | Open Document | Open Filing | FORM 5 | 23 Jan 2023 | 05 Nov 2022 | 000-06506 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Apr 2022 | 08 Apr 2022 | 000-06506 |
| SC 13D/A | Open Document | Open Filing | 12 Apr 2022 | |||
| SC 13D/A | Open Document | Open Filing | 24 Jun 2021 | |||
| 4 | Open Document | Open Filing | FORM 4 | 23 Jun 2021 | 21 Jun 2021 | 000-06506 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D - 2ND AMENDMENT | 26 Jun 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 | 25 Jun 2019 | 24 Jun 2019 | 000-06506 |
| SC 13D/A | Open Document | Open Filing | 20 Feb 2019 | |||
| 4 | Open Document | Open Filing | FORM 4 | 07 Feb 2018 | 05 Feb 2018 | 000-06506 |
| SC 13D | Open Document | Open Filing | NONE | 28 Jan 2015 | ||
| 5 | Open Document | Open Filing | FORM 5 | 28 Jan 2015 | 01 Nov 2014 | 000-06506 |