| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 30 Nov 2021 | 24 Nov 2021 | 000-49908 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Nov 2021 | 24 Nov 2021 | 000-49908 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Oct 2021 | 18 Oct 2021 | 000-49908 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jun 2020 | 25 Jun 2020 | 000-49908 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2020 | 18 Jan 2020 | 000-49908 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2020 | 18 Jan 2020 | 000-49908 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Aug 2015 | 30 Jul 2015 | 000-18188 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Aug 2014 | 25 Jul 2014 | 000-18188 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2014 | 15 Apr 2014 | 000-18188 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2014 | 19 Mar 2014 | 000-18188 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2014 | 22 Jan 2014 | 000-18188 |