| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Jun 2021 | 11 Jun 2021 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jun 2021 | 09 Jun 2021 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Sep 2020 | 10 Sep 2020 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Aug 2020 | 05 Aug 2020 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jun 2020 | 10 Jun 2020 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Aug 2019 | 01 Aug 2019 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jun 2019 | 05 Jun 2019 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2018 | 05 Jun 2018 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Jun 2017 | 06 Jun 2017 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Apr 2017 | 12 Apr 2017 | 001-35708 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Feb 2017 | 17 Feb 2017 | 001-35708 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Feb 2017 | 14 Feb 2017 | 001-35708 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2016 | 31 Aug 2016 | 001-35708 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Jun 2016 | 06 Jun 2016 | 000-51754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2016 | 17 Feb 2016 | 001-35708 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Feb 2016 | 14 Feb 2016 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2015 | 18 Nov 2015 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Oct 2015 | 25 Oct 2015 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Aug 2015 | 14 Aug 2015 | 001-35708 |
| 4 | Open Document | Open Filing | 06/08/2015 - DIRECTOR COMPENSATION | 10 Jun 2015 | 08 Jun 2015 | 000-51754 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2015 | 14 Feb 2015 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Oct 2014 | 25 Oct 2014 | 001-35708 |
| 4 | Open Document | Open Filing | 06/10/2014 - DIRECTOR COMPENSATION | 12 Jun 2014 | 10 Jun 2014 | 000-51754 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2014 | 27 Feb 2014 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2014 | 18 Feb 2014 | 001-35708 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 14 Feb 2014 | 001-35708 |