| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 230228 FORM 4 (KAUFMANN) | Feb 28, 2023 | Feb 24, 2023 | 001-37471 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2022 | Feb 22, 2022 | 001-37471 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2021 | Mar 4, 2021 | 001-37471 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2020 | Feb 27, 2020 | 001-37471 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2019 | Aug 30, 2019 | 001-37471 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2019 | Aug 30, 2019 | 001-37471 |