| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 22, 2022 | Mar 20, 2022 | 001-11693 | |
| 4 | Open Document | Open Filing | Mar 18, 2022 | Mar 16, 2022 | 001-11693 | |
| 4 | Open Document | Open Filing | Jun 29, 2021 | Jun 25, 2021 | 001-11693 | |
| 4 | Open Document | Open Filing | Mar 23, 2021 | Mar 20, 2021 | 001-11693 | |
| 4/A | Open Document | Open Filing | Sep 4, 2020 | Mar 20, 2019 | 001-11693 | |
| 4 | Open Document | Open Filing | FORM 4 | Apr 6, 2020 | Apr 3, 2020 | 001-11693 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2020 | Mar 20, 2020 | 001-11693 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2019 | Mar 20, 2019 | 001-11693 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 16, 2018 | Apr 9, 2018 | 001-11693 |