| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Sep 2021 | 09 Sep 2021 | 001-37792 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Aug 2020 | 19 Aug 2020 | 001-37792 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2019 | 12 Aug 2019 | 001-37792 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 20 Sep 2018 | 12 Sep 2018 | 001-37792 |