| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 26, 2022 | Jan 24, 2022 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2021 | Aug 11, 2021 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 9, 2021 | Aug 5, 2021 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 31, 2021 | Mar 29, 2021 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 3, 2020 | Nov 2, 2020 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 10, 2020 | Aug 6, 2020 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2020 | Jun 18, 2020 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 18, 2020 | Jun 17, 2020 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 31, 2020 | Mar 29, 2020 | 001-16427 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 26, 2019 | Dec 24, 2019 | 001-16427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2019 | Mar 29, 2019 | 001-16427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2019 | Feb 22, 2019 | 001-16427 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 14, 2018 | Mar 29, 2018 | 001-16427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2018 | Mar 29, 2018 | 001-16427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2018 | Feb 23, 2018 | 001-16427 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2018 | Feb 1, 2018 | 001-16427 |