| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Oct 2021 | 24 Feb 2021 | 001-09009 | |
| SC 13D/A | Open Document | Open Filing | 14 Oct 2021 | |||
| 4 | Open Document | Open Filing | FORM 4 | 12 Jan 2016 | 06 Jan 2016 | 001-09009 |
| SC 13D | Open Document | Open Filing | 12 Jan 2016 | |||
| 4 | Open Document | Open Filing | FORM 4 | 11 Jun 2015 | 10 Jun 2015 | 001-09009 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Apr 2015 | 01 Apr 2015 | 001-09009 |