| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2021 | Nov 30, 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 6, 2021 | Apr 5, 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2020 | Nov 30, 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2020 | Apr 5, 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 23, 2020 | Jan 21, 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 9, 2019 | Apr 5, 2019 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 28, 2018 | Aug 27, 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 10, 2018 | Jul 6, 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 9, 2018 | Apr 5, 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2018 | Mar 19, 2018 | 001-07982 |
| 3 | Open Document | Open Filing | FORM 3 | Jan 8, 2018 | Jan 1, 2018 | 001-07982 |