| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 8, 2025 | Jan 7, 2025 | 001-38717 | |
| 4 | Open Document | Open Filing | Nov 19, 2024 | Nov 15, 2024 | 001-38717 | |
| 4 | Open Document | Open Filing | Sep 6, 2024 | Sep 5, 2024 | 001-38717 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 4 TO SCHEDULE 13D | Aug 13, 2024 | ||
| 4 | Open Document | Open Filing | Aug 25, 2022 | Aug 23, 2022 | 001-38717 | |
| 4 | Open Document | Open Filing | Jun 14, 2022 | Jun 10, 2022 | 001-38717 | |
| 4 | Open Document | Open Filing | Mar 30, 2022 | Mar 29, 2022 | 001-38717 | |
| 4 | Open Document | Open Filing | Nov 23, 2021 | Nov 19, 2021 | 001-38717 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13D | Oct 21, 2021 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 26, 2021 | Aug 24, 2021 | 001-38717 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 19, 2021 | Aug 17, 2021 | 001-38717 |
| 4 | Open Document | Open Filing | Nov 19, 2020 | Nov 17, 2020 | 001-38717 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 19, 2020 | Aug 17, 2020 | 001-38717 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13D | Aug 18, 2020 | ||
| 4 | Open Document | Open Filing | Aug 14, 2020 | Aug 12, 2020 | 001-38717 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 3, 2020 | Jun 1, 2020 | 001-38717 |
| 4 | Open Document | Open Filing | May 22, 2020 | May 21, 2020 | 001-38717 | |
| 4 | Open Document | Open Filing | Nov 16, 2018 | Nov 14, 2018 | 001-38717 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 31, 2018 | May 29, 2018 | 000-52176 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 4, 2017 | Nov 29, 2017 | 000-52176 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 1, 2017 | Nov 29, 2017 | 000-52176 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 22, 2017 | Nov 20, 2017 | 000-52176 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2017 | Nov 17, 2017 | 000-52176 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SC 13D | Jun 7, 2017 | ||
| 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 |