| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 May 2023 | 28 Apr 2023 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Nov 2022 | 11 Nov 2022 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 03 May 2022 | 29 Apr 2022 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Mar 2022 | 25 Mar 2022 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jan 2022 | 04 Jan 2022 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2021 | 30 Apr 2021 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Feb 2021 | 10 Feb 2021 | 000-50646 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Aug 2020 | 03 Aug 2020 | 000-50646 |
| 4 | Open Document | Open Filing | 28 Apr 2020 | 24 Apr 2020 | 000-50646 | |
| 4 | Open Document | Open Filing | 30 Apr 2019 | 26 Apr 2019 | 000-50646 | |
| 3 | Open Document | Open Filing | 01 Apr 2019 | 01 Apr 2019 | 000-50646 | |
| 3/A | Open Document | Open Filing | FORM 3/A | 06 May 2013 | 16 May 2012 | 001-13828 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Sep 2012 | 18 Sep 2012 | 001-13828 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jul 2012 | 24 Jul 2012 | 001-13828 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2012 | 16 May 2012 | 001-13828 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2012 | 16 May 2012 | 001-13828 |