| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | FORM 3 | Dec 22, 2021 | Dec 22, 2021 | 001-35965 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 26, 2019 | Dec 23, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 19, 2019 | Dec 18, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 20, 2019 | Aug 20, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 16, 2019 | Aug 15, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2019 | May 20, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2019 | Mar 15, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2019 | Jan 2, 2019 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 22, 2018 | Aug 21, 2018 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 16, 2018 | Aug 15, 2018 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2018 | May 21, 2018 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 7, 2017 | Jun 26, 2016 | 001-37488 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 30, 2015 | Jun 26, 2015 | 000-32421 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 13, 2015 | May 11, 2015 | 000-32421 |