| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2021 | 30 Sep 2021 | 000-54697 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Apr 2021 | 07 Apr 2021 | 000-54697 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Sep 2019 | 13 Sep 2019 | 000-54697 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Mar 2017 | 21 Mar 2017 | 000-54697 |