| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 21 Jul 2021 | 19 Jul 2021 | 000-23593 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jul 2020 | 20 Jul 2020 | 000-23593 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jul 2019 | 22 Jul 2019 | 000-23593 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jul 2018 | 24 Jul 2018 | 000-23593 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jul 2017 | 25 Jul 2017 | 000-23593 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Jul 2016 | 26 Jul 2016 | 000-23593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2015 | 21 Jul 2015 | 000-23593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2014 | 22 Jul 2014 | 000-23593 |