| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 18, 2022 | Dec 13, 2021 | 001-34852 | 
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 18, 2022 | Apr 5, 2021 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Jan 7, 2022 | Jan 5, 2022 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2021 | Dec 13, 2021 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 15, 2021 | Apr 13, 2021 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 14, 2021 | Apr 12, 2021 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 12, 2021 | Apr 8, 2021 | 001-34852 | 
| 144 | Open Document | Open Filing | FORM 144 | Apr 8, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2021 | Apr 5, 2021 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2020 | Jun 1, 2020 | 001-34852 | 
| 144/A | Open Document | Open Filing | FORM 144 | Jun 9, 2020 | ||
| 144/A | Open Document | Open Filing | FORM 144 | Jun 1, 2020 | ||
| 144 | Open Document | Open Filing | FORM 144 | May 22, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 | Feb 14, 2020 | Feb 13, 2020 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 20, 2019 | Feb 18, 2019 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Nov 20, 2017 | Nov 17, 2017 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Jan 12, 2017 | Jan 11, 2017 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2016 | Dec 13, 2016 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Sep 4, 2015 | Sep 4, 2015 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 18, 2015 | Jun 17, 2015 | 001-34852 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2014 | Jun 12, 2014 | 001-34852 |