| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 07 Apr 2022 | 06 Apr 2022 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jul 2019 | 22 Jul 2019 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Feb 2019 | 21 Feb 2019 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2017 | 03 May 2017 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Aug 2016 | 29 Aug 2016 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Aug 2016 | 22 Aug 2016 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jun 2015 | 23 Jun 2015 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jun 2015 | 03 Jun 2015 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Nov 2014 | 04 Nov 2014 | 001-36441 |
| 4/A | Open Document | Open Filing | FORM 4/A | 18 Aug 2014 | 07 May 2014 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Aug 2014 | 11 Aug 2014 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2014 | 07 May 2014 | 001-36441 |
| 3 | Open Document | Open Filing | FORM 3 | 06 May 2014 | 06 May 2014 | 001-36441 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2013 | 05 Nov 2013 | 000-51557 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2013 | 05 Aug 2013 | 000-51557 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2012 | 05 Mar 2012 | 000-51557 |