| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 31, 2025 | Mar 27, 2025 | 001-38717 | |
| 4 | Open Document | Open Filing | Jan 8, 2025 | Jan 7, 2025 | 001-38717 | |
| 4 | Open Document | Open Filing | Mar 22, 2024 | Mar 20, 2024 | 001-38717 | |
| 4 | Open Document | Open Filing | Mar 29, 2023 | Mar 28, 2023 | 001-38717 | |
| 4 | Open Document | Open Filing | Mar 30, 2022 | Mar 29, 2022 | 001-38717 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | Oct 22, 2021 | ||
| 4 | Open Document | Open Filing | Mar 30, 2021 | Mar 26, 2021 | 001-38717 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 27, 2020 | Mar 25, 2020 | 001-38717 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 15, 2019 | Jan 11, 2019 | 001-38717 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 20, 2018 | Feb 16, 2018 | 000-52176 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 6, 2017 | Feb 2, 2017 | 000-52176 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Oct 17, 2016 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 12, 2016 | Oct 7, 2016 | 000-52176 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 12, 2016 | Oct 7, 2016 | 000-52176 |