| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2022 | Jun 15, 2022 | 001-35542 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2022 | Mar 15, 2022 | 001-35542 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 16, 2021 | Dec 15, 2021 | 001-35542 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2021 | Sep 15, 2021 | 001-35542 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2021 | Jun 15, 2021 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2021 | Mar 15, 2021 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 21, 2020 | Dec 17, 2020 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2020 | Dec 15, 2020 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 16, 2020 | Sep 15, 2020 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2020 | Jun 15, 2020 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2020 | Mar 16, 2020 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2019 | Dec 18, 2019 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 23, 2019 | Sep 19, 2019 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2019 | Jun 13, 2019 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2019 | Mar 15, 2019 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2018 | Dec 17, 2018 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 28, 2018 | Sep 28, 2018 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 17, 2018 | Sep 17, 2018 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2018 | Jun 15, 2018 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2018 | Mar 15, 2018 | 001-35542 |
| 4/A | Open Document | Open Filing | FORM 4/A | Dec 20, 2017 | Dec 15, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2017 | Dec 15, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 8, 2017 | Dec 8, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 18, 2017 | Sep 15, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 16, 2017 | Jun 15, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2017 | Mar 13, 2017 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2016 | Dec 15, 2016 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 20, 2016 | Sep 19, 2016 | 001-35542 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2016 | Jun 15, 2016 | 001-35542 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 27, 2016 | Apr 27, 2016 | 001-35542 |