| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 04 Apr 2023 | 01 Apr 2023 | 001-35465 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Apr 2022 | 01 Apr 2022 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Apr 2021 | 08 Apr 2021 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2021 | 01 Apr 2021 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2020 | 01 Apr 2020 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Apr 2019 | 17 Apr 2019 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Apr 2019 | 01 Apr 2019 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Apr 2018 | 11 Apr 2018 | 001-35465 |
| 4/A | Open Document | Open Filing | FORM 4/A | 30 May 2017 | 19 Apr 2017 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2017 | 19 Apr 2017 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Apr 2016 | 09 Apr 2015 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Apr 2016 | 09 Apr 2015 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2014 | 13 Nov 2014 | 001-35465 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Aug 2014 | 13 Aug 2014 | 001-35465 |
| 4 | Open Document | Open Filing | 03 Feb 2014 | 30 Jan 2014 | 001-35465 | |
| 3 | Open Document | Open Filing | 27 Jan 2014 | 15 Jan 2014 | 001-35465 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2013 | 05 Mar 2013 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2013 | 31 Dec 2012 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Nov 2012 | 11 Nov 2012 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2012 | 08 Nov 2012 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2012 | 01 Oct 2012 | 000-19528 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2012 | 31 Dec 2011 | 000-19528 |