| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2021 | 08 Dec 2021 | 000-52765 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2021 | 06 Jan 2021 | 000-52765 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2021 | 19 Feb 2021 | 000-52765 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Aug 2020 | 27 May 2020 | 000-52765 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Apr 2020 | 27 Apr 2020 | 000-52765 |
| 3 | Open Document | Open Filing | FORM 3 | 30 Apr 2020 | 24 Apr 2020 | 000-52765 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2018 | 08 Jun 2018 | 001-38513 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2018 | 29 Dec 2017 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Sep 2017 | 20 Sep 2017 | 000-53088 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2017 | 30 Dec 2016 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2016 | 23 Jun 2016 | 000-53088 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2016 | 25 Dec 2015 | 000-53088 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2015 | 26 Dec 2014 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2014 | 30 Dec 2014 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Dec 2014 | 11 Dec 2014 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Aug 2014 | 26 Aug 2014 | 000-53088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Apr 2014 | 14 Apr 2014 | 000-53088 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2014 | 27 Dec 2013 | 000-53088 |