| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 19 Aug 2021 | 19 Aug 2021 | 001-13684 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Oct 2020 | 12 Oct 2020 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2018 | 30 Jun 2018 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2018 | 31 Mar 2018 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2018 | 31 Dec 2017 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2017 | 29 Sep 2017 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2017 | 30 Jun 2017 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2017 | 31 Mar 2017 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2017 | 31 Dec 2016 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2016 | 30 Sep 2016 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2016 | 30 Jun 2016 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2016 | 31 Mar 2016 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2015 | 31 Dec 2015 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Oct 2015 | 30 Sep 2015 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2015 | 30 Jun 2015 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Mar 2015 | 31 Mar 2015 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 31 Dec 2014 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Sep 2014 | 30 Sep 2014 | 001-13684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2013 | 08 Aug 2013 | 001-13684 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2013 | 13 Jun 2013 | 001-13684 |