| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 5, 2022 | May 3, 2022 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 6, 2021 | May 4, 2021 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 4, 2021 | Dec 30, 2020 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2020 | May 11, 2020 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 13, 2019 | May 8, 2019 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2018 | May 9, 2018 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2018 | Feb 21, 2018 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 14, 2017 | Dec 12, 2017 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 14, 2017 | Nov 28, 2017 | 001-38147 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 1, 2017 | Nov 28, 2017 | 001-38147 |
| 4 | Open Document | Open Filing | FORM 4 | May 11, 2017 | May 9, 2017 | 001-14901 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2017 | Mar 24, 2017 | 000-51474 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2016 | May 11, 2016 | 001-14901 |
| 3 | Open Document | Open Filing | FORM 3 | May 13, 2016 | May 11, 2016 | 001-14901 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 11, 2016 | Dec 18, 2015 | 000-51474 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 13, 2014 | Sep 25, 2012 | 000-51474 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 13, 2014 | Sep 25, 2012 | 000-51474 |