| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 2, 2021 | Nov 2, 2021 | 001-40995 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 23, 2020 | Dec 21, 2020 | 001-09769 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 9, 2020 | Dec 9, 2020 | 001-38835 |
| 4 | Open Document | Open Filing | Oct 30, 2019 | Oct 23, 2019 | 001-35641 | |
| 3 | Open Document | Open Filing | Mar 14, 2019 | Mar 14, 2019 | 001-38835 | |
| 4 | Open Document | Open Filing | FORM 4 | Feb 15, 2017 | Feb 13, 2017 | 001-09769 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2016 | Sep 29, 2016 | 001-09769 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2015 | Jun 10, 2015 | 001-09769 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 24, 2014 | Nov 21, 2014 | 001-31558 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2014 | Jun 16, 2014 | 001-09769 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Mar 20, 2014 | Mar 20, 2014 | 001-09769 |
| 4 | Open Document | Open Filing | FORM 4 - | Jan 6, 2014 | Jan 2, 2014 | 001-31558 |