| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2022 | Mar 24, 2022 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 15, 2022 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2022 | Mar 3, 2022 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 20, 2021 | Aug 18, 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 | Dec 16, 2019 | Dec 12, 2019 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2019 | Nov 13, 2019 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2019 | Jun 1, 2019 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2019 | Dec 12, 2016 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2016 | Jun 1, 2016 | 000-22193 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 3, 2016 | Jun 1, 2016 | 000-22193 |