| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 23 Aug 2023 | 21 Aug 2023 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Aug 2022 | 22 Aug 2022 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2021 | 24 Aug 2021 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Aug 2021 | 18 Aug 2021 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Aug 2021 | 10 Aug 2021 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Sep 2020 | 01 Sep 2020 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Aug 2020 | 18 Aug 2020 | 000-21184 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Aug 2020 | 10 Aug 2020 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Aug 2019 | 20 Aug 2019 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2019 | 12 Aug 2019 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2018 | 14 Aug 2018 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2018 | 10 Aug 2018 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 14 Mar 2018 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 10 Nov 2017 | 000-21184 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 10 Nov 2017 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 22 Aug 2017 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Aug 2017 | 10 Aug 2017 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2016 | 10 Nov 2016 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2016 | 15 Aug 2016 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2016 | 10 Aug 2016 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2015 | 10 Nov 2015 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2015 | 14 Aug 2015 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2015 | 10 Aug 2015 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2014 | 10 Nov 2014 | 000-21184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2014 | 25 Aug 2014 | 000-21184 |