| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 30 Aug 2021 | 26 Aug 2021 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2021 | 26 Feb 2021 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2020 | 28 Feb 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Feb 2020 | 11 Feb 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2020 | 01 Jan 2020 | 000-51889 |
| 4/A | Open Document | Open Filing | FORM 4/A | 03 Jan 2020 | 01 Jan 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2020 | 01 Jan 2020 | 001-11713 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 02 Jan 2020 | 01 Jan 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jan 2019 | 24 Jan 2019 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Oct 2018 | 25 Oct 2018 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Aug 2018 | 17 Aug 2018 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2018 | 24 May 2018 | 000-51889 |
| 4/A | Open Document | Open Filing | FORM 4/A | 11 May 2018 | 09 May 2018 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2018 | 09 May 2018 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Feb 2018 | 30 Jan 2017 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jan 2017 | 22 Nov 2016 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Dec 2016 | 19 Dec 2016 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Jun 2016 | 28 Jun 2016 | 000-51889 |
| 5 | Open Document | Open Filing | FORM 5 | 04 Feb 2016 | 31 Dec 2015 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Aug 2015 | 27 Aug 2015 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Jan 2015 | 15 Jan 2015 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2014 | 01 Aug 2014 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2014 | 05 Jun 2014 | 000-51889 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Jan 2014 | 24 Jan 2014 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2013 | 15 Nov 2013 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2013 | 08 Feb 2013 | 000-51889 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2012 | 04 Sep 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2012 | 04 Sep 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2012 | 22 May 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Apr 2012 | 26 Apr 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2012 | 25 Apr 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Apr 2012 | 09 Apr 2012 | 000-51889 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2012 | 30 Mar 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Mar 2012 | 30 Mar 2012 | 000-51889 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2012 | 07 Feb 2012 | 000-51889 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2012 | 12 Dec 2011 | 000-51889 |