| 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 | 14 Feb 2018 | 13 Feb 2018 | 001-36441 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Nov 2016 | 28 Nov 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 | 17 Mar 2015 | 12 Mar 2015 | 001-36441 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2015 | 12 Mar 2015 | 000-51557 |
| 4/A | Open Document | Open Filing | FORM 4/A | 18 Aug 2014 | 07 May 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 | 09 May 2014 | 07 May 2014 | 001-36441 |
| 3 | Open Document | Open Filing | FORM 3 | 06 May 2014 | 06 May 2014 | 001-36441 |