| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 15, 2022 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2022 | Feb 28, 2022 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2021 | Mar 31, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 15, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Feb 28, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2020 | Mar 31, 2020 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2019 | Dec 12, 2019 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 28, 2019 | Jun 27, 2019 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2019 | Feb 28, 2019 | 000-22193 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 6, 2018 | Mar 27, 2018 | 000-22193 |