| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Apr 2022 | 11 Apr 2022 | 001-39658 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 13 Apr 2022 | 11 Apr 2022 | 001-39658 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2018 | 02 Jul 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2018 | 15 Mar 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Feb 2018 | 12 Feb 2018 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Mar 2017 | 15 Mar 2017 | 000-50167 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2017 | 02 Mar 2017 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2016 | 15 Apr 2016 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2016 | 25 Feb 2016 | 000-50167 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Oct 2015 | 19 Oct 2015 | 000-50167 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 20 Oct 2015 | 19 Oct 2015 | 000-50167 |
| 4 | Open Document | Open Filing | 07 Mar 2013 | 05 Mar 2013 | 001-13958 | |
| 4 | Open Document | Open Filing | 05 Mar 2013 | 01 Mar 2013 | 001-13958 | |
| 4 | Open Document | Open Filing | 04 Mar 2013 | 28 Feb 2013 | 001-13958 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 30 Aug 2012 | 24 Aug 2012 | 001-13958 |