| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Apr 25, 2022 | Feb 15, 2022 | 000-21318 | |
| 4 | Open Document | Open Filing | Nov 29, 2021 | Nov 23, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Oct 25, 2021 | Oct 21, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Jul 22, 2021 | Jul 20, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Jul 20, 2021 | Jul 16, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | May 3, 2021 | Apr 30, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Apr 19, 2021 | Apr 15, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Mar 25, 2021 | Mar 24, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Feb 8, 2021 | Feb 4, 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | Nov 30, 2020 | Nov 4, 2020 | 000-21318 | |
| 4 | Open Document | Open Filing | Aug 3, 2020 | Jul 30, 2020 | 000-21318 | |
| 4 | Open Document | Open Filing | Feb 3, 2020 | Jan 30, 2020 | 000-21318 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 26, 2019 | Nov 22, 2019 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 13, 2019 | Nov 11, 2019 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2019 | Apr 2, 2019 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 14, 2019 | Feb 12, 2019 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 4, 2019 | Jan 31, 2019 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2018 | Nov 14, 2018 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2018 | Feb 1, 2018 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2018 | Jan 3, 2018 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 30, 2017 | Nov 29, 2017 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 6, 2017 | Feb 2, 2017 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 29, 2016 | Jul 28, 2016 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2016 | Jan 28, 2016 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2015 | Jan 29, 2015 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 30, 2014 | Dec 29, 2014 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2014 | Jan 30, 2014 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 22, 2014 | Jan 21, 2014 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2014 | Dec 31, 2013 | 000-21318 |