| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 20, 2022 | Jul 20, 2022 | 001-10709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2021 | May 28, 2021 | 001-10709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 22, 2021 | Apr 20, 2021 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 24, 2020 | Apr 22, 2020 | 001-10709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 25, 2019 | Apr 23, 2019 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2018 | Apr 24, 2018 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2017 | Apr 25, 2017 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 28, 2016 | Apr 26, 2016 | 001-10709 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 30, 2015 | Apr 28, 2015 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2015 | Apr 28, 2015 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2015 | Feb 25, 2015 | 001-10709 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2014 | Apr 28, 2014 | 001-10709 |