| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 23, 2022 | Jun 23, 2022 | 001-34995 | |
| 4/A | Open Document | Open Filing | Apr 28, 2022 | Mar 31, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Apr 15, 2022 | Apr 13, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Apr 4, 2022 | Mar 31, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Mar 17, 2022 | Mar 15, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Jan 14, 2022 | Jan 12, 2022 | 001-34995 | |
| 4 | Open Document | Open Filing | Dec 27, 2021 | Dec 21, 2021 | 001-34995 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2021 | Jun 17, 2021 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 15, 2021 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2020 | Jun 17, 2020 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2020 | May 14, 2020 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2020 | Mar 11, 2020 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2020 | Feb 27, 2020 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2020 | Jan 2, 2020 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 29, 2019 | Aug 26, 2019 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2019 | Jan 2, 2019 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 8, 2018 | Aug 8, 2018 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 2, 2018 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2017 | Dec 11, 2017 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 29, 2017 | Nov 28, 2017 | 001-34995 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2017 | Jan 3, 2017 | 001-34995 |
| 4 | Open Document | Open Filing | Jan 6, 2016 | Jan 4, 2016 | 001-34995 | |
| 4 | Open Document | Open Filing | Mar 26, 2015 | Mar 24, 2015 | 001-34995 | |
| 4 | Open Document | Open Filing | Jan 5, 2015 | Jan 2, 2015 | 001-34995 | |
| 4 | Open Document | Open Filing | Aug 15, 2014 | Jun 30, 2014 | 001-34995 | |
| 4 | Open Document | Open Filing | Jan 3, 2014 | Jan 2, 2014 | 001-34995 |