| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2022 | Jun 16, 2022 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2021 | Jun 17, 2021 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 7, 2021 | Apr 6, 2021 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 14, 2020 | Sep 10, 2020 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 22, 2020 | Jun 18, 2020 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 24, 2019 | Jun 20, 2019 | 001-07572 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 27, 2018 | Jun 21, 2018 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 26, 2018 | Jun 15, 2017 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2017 | Jun 15, 2017 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 20, 2016 | Jun 16, 2016 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 22, 2015 | Jun 18, 2015 | 001-07572 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 22, 2014 | Dec 19, 2014 | 001-07572 |