| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 3, 2021 | Dec 2, 2021 | 001-38543 |
| 4 | Open Document | Open Filing | Nov 3, 2021 | Nov 2, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Oct 5, 2021 | Oct 4, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Sep 3, 2021 | Sep 2, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Aug 3, 2021 | Aug 2, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Jul 19, 2021 | Jul 15, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Jul 2, 2021 | Jul 2, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Jun 8, 2021 | Jun 4, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | May 19, 2021 | May 17, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Jan 11, 2021 | Jan 7, 2021 | 001-38543 | |
| 4 | Open Document | Open Filing | Mar 13, 2020 | Mar 11, 2020 | 001-38543 | |
| 4 | Open Document | Open Filing | Mar 29, 2019 | Mar 27, 2019 | 001-38543 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 26, 2019 | Feb 25, 2019 | 001-38543 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 20, 2018 | Dec 19, 2018 | 001-38543 |
| 4 | Open Document | Open Filing | Jun 26, 2018 | Jun 22, 2018 | 001-38543 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 18, 2018 | Jun 15, 2018 | 000-53605 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 2, 2018 | Feb 1, 2018 | 000-53605 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 6, 2017 | Sep 25, 2017 | 000-53605 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 10, 2017 | Aug 1, 2017 | 000-53605 |