| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2022 | Jan 1, 2022 | 001-33749 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2021 | Jan 1, 2021 | 001-33749 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 25, 2020 | Feb 21, 2020 | 001-33749 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2020 | Jan 1, 2020 | 001-33749 |
| 4 | Open Document | Open Filing | Jan 3, 2019 | Jan 1, 2019 | 001-33749 | |
| 4 | Open Document | Open Filing | FORM 4 | May 3, 2018 | May 1, 2018 | 001-33749 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 3, 2018 | Jan 1, 2018 | 001-33749 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 28, 2017 | Feb 27, 2017 | 001-33749 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 24, 2017 | Feb 22, 2017 | 001-33749 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 4, 2017 | May 11, 2011 | 001-33749 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 5, 2016 | Jan 1, 2016 | 001-33749 |
| 4 | Open Document | Open Filing | Feb 26, 2015 | Feb 24, 2015 | 001-33749 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 18, 2014 | Mar 14, 2014 | 001-33749 |