| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2021 | 23 Aug 2021 | 001-09656 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Sep 2020 | 03 Sep 2020 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Sep 2019 | 29 Aug 2019 | 001-09656 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2019 | 27 Apr 2019 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2018 | 30 Aug 2018 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2017 | 31 Aug 2017 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 26 Aug 2016 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Aug 2015 | 21 Aug 2015 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2014 | 02 Sep 2014 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2013 | 03 Sep 2013 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Sep 2012 | 17 Sep 2012 | 001-09656 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2012 | 04 Sep 2012 | 001-09656 |