| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2022 | Dec 31, 2021 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 16, 2021 | Aug 16, 2021 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2021 | Aug 9, 2021 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 16, 2021 | Feb 11, 2021 | 001-35746 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 10, 2021 | Dec 31, 2020 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2020 | Dec 15, 2020 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2020 | Feb 6, 2020 | 001-35746 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 4, 2020 | Dec 31, 2019 | 001-35746 | 
| 4/A | Open Document | Open Filing | FORM 4/A | Jan 2, 2020 | Dec 16, 2019 | 001-35746 | 
| 4/A | Open Document | Open Filing | FORM 4/A | Dec 20, 2019 | Dec 16, 2019 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2019 | Dec 16, 2019 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 19, 2019 | Feb 14, 2019 | 001-35746 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 13, 2019 | Dec 31, 2018 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2018 | Dec 15, 2018 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 13, 2018 | Aug 9, 2018 | 001-35746 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 14, 2018 | Dec 31, 2017 | 001-35746 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 19, 2017 | Dec 15, 2017 | 001-35746 | 
| 3 | Open Document | Open Filing | FORM 3 | Dec 19, 2017 | Dec 15, 2017 | 001-35746 |