| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2022 | 31 Dec 2021 | 000-50275 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Nov 2021 | 26 Nov 2021 | 000-50275 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2021 | 31 Dec 2020 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Feb 2020 | 07 Feb 2020 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2019 | 19 Mar 2019 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Sep 2018 | 19 Sep 2018 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jun 2018 | 15 Jun 2018 | 000-50275 |
| 5 | Open Document | Open Filing | FORM 5 | 07 Feb 2018 | 31 Dec 2017 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2017 | 08 Nov 2017 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Sep 2017 | 19 Sep 2017 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Sep 2017 | 12 Sep 2017 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2015 | 29 Dec 2015 | 000-50275 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Nov 2015 | 04 Nov 2015 | 000-50275 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Nov 2015 | 04 Nov 2015 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Nov 2014 | 21 Nov 2014 | 000-50275 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Oct 2014 | 20 Oct 2014 | 000-50275 |
| 3 | Open Document | Open Filing | FORM 3 | 19 Mar 2014 | 17 Mar 2014 | 000-50275 |