| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2021 | Nov 10, 2021 | 001-08359 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 19, 2021 | Oct 15, 2021 | 001-08359 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2020 | Nov 9, 2020 | 001-08359 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 19, 2020 | Oct 15, 2020 | 001-08359 |
| 3 | Open Document | Open Filing | FORM 3 | Jan 31, 2020 | Jan 21, 2020 | 001-08359 |