| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2021 | 20 May 2021 | 001-11778 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2020 | 20 May 2020 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2020 | 20 Mar 2020 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 20 Dec 2019 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Nov 2019 | 31 Oct 2019 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2019 | 26 Sep 2019 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Sep 2019 | 23 Sep 2019 | 001-15829 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2019 | 16 May 2019 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2019 | 28 Dec 2018 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Nov 2018 | 26 Nov 2018 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2018 | 01 Oct 2018 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Sep 2018 | 24 Sep 2018 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Sep 2018 | 19 Sep 2018 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2018 | 02 Jul 2018 | 001-16445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2018 | 17 May 2018 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2018 | 02 Apr 2018 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2018 | 01 Feb 2018 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2018 | 03 Jan 2018 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2017 | 02 Oct 2017 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Sep 2017 | 25 Sep 2017 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2017 | 31 Jul 2017 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2017 | 05 Jul 2017 | 001-16445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 18 May 2017 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2017 | 03 Apr 2017 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2017 | 02 Feb 2017 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2017 | 03 Jan 2017 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2016 | 03 Oct 2016 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Sep 2016 | 26 Sep 2016 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2016 | 05 Aug 2016 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2016 | 05 Jul 2016 | 001-16445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 May 2016 | 19 May 2016 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Apr 2016 | 04 Apr 2016 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2016 | 04 Feb 2016 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2016 | 05 Jan 2016 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Oct 2015 | 05 Oct 2015 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Sep 2015 | 28 Sep 2015 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Sep 2015 | 21 Sep 2015 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jul 2015 | 06 Jul 2015 | 001-16445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2015 | 21 May 2015 | 001-11778 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Apr 2015 | 06 Apr 2015 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2015 | 05 Feb 2015 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2015 | 05 Jan 2015 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Sep 2014 | 29 Sep 2014 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Sep 2014 | 22 Sep 2014 | 001-15829 |
| 4 | Open Document | Open Filing | 19 May 2014 | 15 May 2014 | 001-11778 | |
| 3 | Open Document | Open Filing | 19 May 2014 | 15 May 2014 | 001-11778 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2014 | 06 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2013 | 30 Sep 2013 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Sep 2013 | 23 Sep 2013 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jul 2013 | 23 Jul 2013 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2013 | 01 Jul 2013 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Apr 2013 | 25 Apr 2013 | 001-15829 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2013 | 01 Apr 2013 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2013 | 07 Feb 2013 | 001-16445 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2013 | 02 Jan 2013 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2012 | 13 Nov 2012 | 001-16445 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2012 | 13 Nov 2012 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Sep 2012 | 24 Sep 2012 | 001-15829 |