| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2021 | May 18, 2021 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2021 | May 18, 2021 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2021 | Mar 31, 2021 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2020 | Aug 10, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | May 20, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2020 | Mar 31, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 4, 2020 | Jan 31, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 17, 2020 | Jan 15, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 13, 2020 | Jan 9, 2020 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2019 | Jun 28, 2019 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2019 | May 22, 2019 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2019 | Mar 29, 2019 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2018 | Jun 29, 2018 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2018 | May 29, 2018 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 25, 2018 | May 23, 2018 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2018 | May 18, 2018 | 001-34972 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 3, 2018 | Mar 31, 2018 | 001-34972 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 15, 2017 | Dec 6, 2017 | 001-34972 |