| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 01 Dec 2022 | 30 Nov 2022 | 000-55598 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jun 2021 | 21 Jun 2021 | 000-55598 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Oct 2017 | 28 Sep 2017 | 000-55598 |
| 3 | Open Document | Open Filing | FORM 3 | 18 Mar 2016 | 18 Mar 2016 | 000-55598 |