| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2021 | Nov 30, 2021 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2021 | May 25, 2021 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 3, 2021 | Jan 31, 2021 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Sep 1, 2020 | Sep 1, 2020 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | May 20, 2020 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 10, 2020 | Jan 31, 2020 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2019 | Dec 3, 2019 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Sep 3, 2019 | Aug 30, 2019 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2019 | May 21, 2019 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2019 | Mar 28, 2019 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 4, 2019 | Jan 31, 2019 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2018 | Dec 4, 2018 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 29, 2018 | Aug 28, 2018 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2018 | May 22, 2018 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 12, 2018 | Jan 31, 2018 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 28, 2017 | Aug 28, 2017 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2017 | May 25, 2017 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 14, 2017 | Jan 31, 2017 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 25, 2016 | May 24, 2016 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2016 | Mar 14, 2016 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 2, 2016 | Jan 31, 2016 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2015 | May 21, 2015 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2015 | May 13, 2015 | 001-13906 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 9, 2015 | Apr 9, 2015 | 001-07982 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 4, 2015 | Jan 31, 2015 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2014 | May 22, 2014 | 001-07982 | 
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2014 | May 16, 2014 | 001-13906 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 5, 2014 | Jan 31, 2014 | 001-07982 |