| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 18, 2022 | Mar 17, 2022 | 811-22535 |
| 4 | Open Document | Open Filing | 4 | Dec 28, 2018 | Dec 24, 2018 | 811-22535 |
| 4 | Open Document | Open Filing | 4 | Sep 28, 2018 | Sep 26, 2018 | 811-22535 |
| 3 | Open Document | Open Filing | 3 | Dec 1, 2016 | Dec 1, 2016 | 811-23165 |
| 4 | Open Document | Open Filing | 4 | Sep 2, 2015 | Aug 31, 2015 | 811-22812 |
| 4 | Open Document | Open Filing | 4 | Sep 2, 2015 | Aug 31, 2015 | 811-22535 |
| 4 | Open Document | Open Filing | 4 | Mar 26, 2014 | Mar 24, 2014 | 811-22535 |
| 4 | Open Document | Open Filing | 4 | Mar 26, 2014 | Mar 24, 2014 | 811-22812 |
| 3 | Open Document | Open Filing | 3 | Mar 24, 2014 | Jan 29, 2014 | 811-22535 |
| 3 | Open Document | Open Filing | 3 | Mar 24, 2014 | Jan 29, 2014 | 811-22812 |