| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 18, 2021 | Oct 14, 2021 | 001-07234 |
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2021 | May 24, 2021 | 001-07234 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2021 | Apr 1, 2021 | 001-07234 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2021 | Jan 4, 2021 | 001-07234 |
| 3/A | Open Document | Open Filing | FORM 3/A | Dec 28, 2020 | Nov 17, 2020 | 001-07234 |
| 3 | Open Document | Open Filing | FORM 3 | Nov 25, 2020 | Nov 17, 2020 | 001-07234 |