| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2022 | Apr 1, 2022 | 001-38471 |
| 4 | Open Document | Open Filing | FORM 4 | May 11, 2021 | May 10, 2021 | 001-38471 |
| 4 | Open Document | Open Filing | FORM 4 | May 8, 2020 | May 6, 2020 | 001-38471 |
| 4 | Open Document | Open Filing | FORM 4 | May 10, 2019 | May 8, 2019 | 001-38471 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 5, 2018 | Jul 2, 2018 | 001-38471 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 22, 2018 | Jun 12, 2018 | 001-38471 |