| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2022 | Jun 7, 2022 | 001-12368 |
| 4/A | Open Document | Open Filing | FORM 4/A | Feb 26, 2020 | Feb 25, 2020 | 001-12368 |
| 4/A | Open Document | Open Filing | FORM 4/A | Feb 26, 2020 | Feb 25, 2020 | 001-12368 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2020 | Feb 25, 2020 | 001-12368 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2019 | Mar 1, 2019 | 001-12368 |
| 3 | Open Document | Open Filing | FORM 3 | Aug 22, 2017 | Jun 6, 2017 | 001-12368 |