| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 4, 2021 | Oct 1, 2021 | 001-08182 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 29, 2021 | Apr 27, 2021 | 001-08182 |
| 3 | Open Document | Open Filing | FORM 3 - | Jun 8, 2020 | May 29, 2020 | 001-08182 |