| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2022 | May 15, 2022 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2021 | May 15, 2021 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 5, 2020 | Aug 4, 2020 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | May 18, 2020 | May 15, 2020 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 4, 2019 | Sep 3, 2019 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2019 | Jun 5, 2019 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2019 | May 15, 2019 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 4, 2018 | Sep 4, 2018 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2018 | May 15, 2018 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2018 | Feb 27, 2018 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2018 | Feb 1, 2018 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 11, 2017 | Dec 8, 2017 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 8, 2017 | Aug 8, 2017 | 001-35968 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2017 | May 15, 2017 | 001-35968 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 26, 2017 | Apr 20, 2017 | 001-35968 |