| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2021 | May 19, 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2021 | Apr 30, 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 12, 2021 | Mar 10, 2021 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2020 | May 14, 2020 | 001-38962 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2019 | May 22, 2019 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2018 | Oct 31, 2018 | 001-37820 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2018 | May 23, 2018 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2018 | Mar 30, 2018 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2018 | Mar 8, 2018 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2017 | Nov 7, 2017 | 001-37820 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2017 | May 24, 2017 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2017 | Mar 8, 2017 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2017 | Feb 23, 2017 | 001-37820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2016 | May 26, 2016 | 001-33864 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2016 | May 18, 2016 | 000-14948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2016 | Mar 24, 2016 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2016 | Mar 22, 2016 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 10, 2015 | Nov 6, 2015 | 001-33864 |
| 4 | Open Document | Open Filing | May 21, 2015 | May 20, 2015 | 000-14948 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 26, 2015 | Mar 24, 2015 | 001-33864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2015 | Mar 6, 2015 | 001-33864 |
| 4 | Open Document | Open Filing | May 30, 2014 | May 28, 2014 | 000-14948 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2014 | Mar 6, 2014 | 001-33864 |