| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2021 | 19 May 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2021 | 30 Apr 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Mar 2021 | 10 Mar 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2020 | 14 May 2020 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 May 2019 | 22 May 2019 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | 001-37820 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2018 | 23 May 2018 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2018 | 30 Mar 2018 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2018 | 08 Mar 2018 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2017 | 07 Nov 2017 | 001-37820 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 May 2017 | 24 May 2017 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2017 | 08 Mar 2017 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2017 | 23 Feb 2017 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2016 | 26 May 2016 | 001-33864 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 May 2016 | 18 May 2016 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Mar 2016 | 24 Mar 2016 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2016 | 22 Mar 2016 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2015 | 06 Nov 2015 | 001-33864 |
| 4 | Open Document | Open Filing | 21 May 2015 | 20 May 2015 | 000-14948 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Mar 2015 | 24 Mar 2015 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2015 | 06 Mar 2015 | 001-33864 |
| 4 | Open Document | Open Filing | 30 May 2014 | 28 May 2014 | 000-14948 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Mar 2014 | 06 Mar 2014 | 001-33864 |
| 4 | Open Document | Open Filing | 23 May 2013 | 22 May 2013 | 000-14948 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2013 | 27 Feb 2013 | 001-33864 |
| 4 | Open Document | Open Filing | 10 Jul 2012 | 09 Jul 2012 | 000-14948 | |
| 3 | Open Document | Open Filing | 10 Jul 2012 | 09 Jul 2012 | 000-14948 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2012 | 02 Mar 2012 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2012 | 28 Feb 2012 | 001-33864 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Feb 2012 | 10 Feb 2012 | 001-33864 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Feb 2012 | 07 Feb 2012 | 001-33864 |