| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | 15 Nov 2021 | 20 Sep 2021 | 001-14116 | |
| 4 | Open Document | Open Filing | 15 Nov 2021 | 11 Nov 2021 | 001-14116 | |
| 4 | Open Document | Open Filing | 21 Sep 2021 | 20 Sep 2021 | 001-14116 | |
| 4 | Open Document | Open Filing | 04 Jun 2021 | 02 Jun 2021 | 001-14116 | |
| 4 | Open Document | Open Filing | 09 Dec 2020 | 07 Dec 2020 | 001-14116 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2020 | 01 Jun 2020 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Apr 2020 | 27 Apr 2020 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Aug 2019 | 08 Aug 2019 | 001-14116 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 May 2018 | 09 May 2018 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2018 | 30 Jan 2018 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2017 | 28 Jul 2017 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2017 | 17 May 2017 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2017 | 08 Mar 2017 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2017 | 24 Feb 2017 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Oct 2016 | 24 Oct 2016 | 001-14116 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 May 2016 | 12 May 2016 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2015 | 07 Aug 2015 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2015 | 19 May 2015 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2015 | 19 May 2015 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2015 | 19 May 2015 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 May 2015 | 29 Apr 2015 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Jul 2014 | 28 Jul 2014 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2014 | 07 Apr 2014 | 001-14116 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Oct 2013 | 27 Sep 2013 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2013 | 16 Jul 2013 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2013 | 07 May 2013 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2013 | 01 Feb 2013 | 001-14116 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2012 | 16 Jul 2012 | 001-14116 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2012 | 03 Apr 2012 | 001-14116 |