| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 1, 2022 | Feb 25, 2022 | 001-39900 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 21, 2021 | Jan 14, 2021 | 001-39900 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 7, 2016 | Jun 3, 2016 | 001-32373 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 5, 2015 | Jun 4, 2015 | 001-32373 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 6, 2014 | Jun 4, 2014 | 001-32373 |