| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 03 Aug 2021 | 01 Aug 2021 | 000-33203 | |
| 4 | Open Document | Open Filing | 12 Feb 2021 | 10 Feb 2021 | 000-33203 | |
| 4 | Open Document | Open Filing | 31 Dec 2020 | 30 Dec 2020 | 000-33203 | |
| 4 | Open Document | Open Filing | 05 Aug 2020 | 13 Mar 2020 | 000-33203 | |
| 4 | Open Document | Open Filing | 15 Oct 2019 | 11 Oct 2019 | 000-33203 | |
| 4 | Open Document | Open Filing | 05 Aug 2019 | 01 Aug 2019 | 000-33203 | |
| 4 | Open Document | Open Filing | 15 Aug 2018 | 13 Aug 2018 | 000-33203 | |
| 4 | Open Document | Open Filing | 03 Aug 2018 | 01 Aug 2018 | 000-33203 | |
| 4 | Open Document | Open Filing | 16 Mar 2018 | 14 Mar 2018 | 000-33203 | |
| 4 | Open Document | Open Filing | 03 Aug 2017 | 01 Aug 2017 | 000-33203 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2016 | 01 Aug 2016 | 000-33203 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jul 2016 | 19 Jul 2016 | 000-33203 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Apr 2016 | 18 Apr 2016 | 000-33203 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Mar 2014 | 19 Mar 2014 | 000-33203 |