| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Aug 31, 2022 | Aug 29, 2022 | 000-21719 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 16, 2022 | Mar 15, 2022 | 000-21719 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Feb 28, 2022 | Feb 24, 2022 | 000-21719 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Feb 1, 2022 | Feb 1, 2022 | 000-21719 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Nov 23, 2021 | Nov 21, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2021 | Apr 29, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 15, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2021 | Feb 25, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2021 | Feb 24, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2021 | Feb 1, 2021 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2020 | Nov 21, 2020 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2020 | Mar 13, 2020 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2020 | Feb 28, 2020 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2020 | Feb 20, 2020 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2020 | Feb 3, 2020 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 22, 2019 | Nov 21, 2019 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2019 | May 31, 2019 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2019 | Mar 15, 2019 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2019 | Feb 11, 2019 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2019 | Feb 1, 2019 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 26, 2018 | Nov 21, 2018 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2018 | Mar 15, 2018 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2018 | Feb 15, 2018 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2018 | Feb 1, 2018 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2017 | Nov 21, 2017 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2017 | Mar 15, 2017 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2017 | Feb 17, 2017 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2017 | Feb 1, 2017 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 22, 2016 | Nov 21, 2016 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2016 | Nov 17, 2016 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 1, 2016 | Mar 30, 2016 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2016 | Mar 15, 2016 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2016 | Feb 1, 2016 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2015 | Nov 21, 2015 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2015 | Mar 10, 2015 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2015 | Feb 2, 2015 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2014 | Nov 21, 2014 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2014 | Mar 10, 2014 | 000-21719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Feb 3, 2014 | 000-21719 |