| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 2, 2024 | May 1, 2024 | 000-53848 | |
| 4 | Open Document | Open Filing | Dec 12, 2023 | Dec 12, 2023 | 000-53848 | |
| 4 | Open Document | Open Filing | Sep 26, 2023 | Sep 22, 2023 | 000-53848 | |
| 4 | Open Document | Open Filing | Aug 22, 2023 | Aug 11, 2023 | 000-53848 | |
| 4/A | Open Document | Open Filing | Aug 22, 2023 | Jun 13, 2023 | 000-53848 | |
| 4 | Open Document | Open Filing | Jun 14, 2023 | Jun 13, 2023 | 000-53848 | |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2023 | Feb 17, 2023 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2023 | Jan 31, 2023 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2022 | Apr 25, 2022 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 15, 2022 | Feb 15, 2022 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 8, 2022 | Feb 7, 2022 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 28, 2022 | Jan 28, 2022 | 000-53848 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jan 28, 2022 | Oct 22, 2020 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2020 | Oct 22, 2020 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 23, 2019 | Aug 21, 2019 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 30, 2018 | Nov 29, 2018 | 000-53848 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2018 | Apr 19, 2018 | 000-53848 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 30, 2018 | Apr 18, 2018 | 000-53848 |