| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 27, 2022 | May 26, 2022 | 000-55088 | |
| 4 | Open Document | Open Filing | Dec 10, 2021 | Dec 8, 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | Dec 7, 2021 | Dec 6, 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | Oct 20, 2021 | Oct 18, 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | Oct 18, 2021 | Oct 14, 2021 | 000-55088 | |
| 4 | Open Document | Open Filing | Oct 6, 2021 | Jun 30, 2021 | 000-55088 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 14, 2021 | Jun 9, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2021 | Jun 9, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2021 | Jun 7, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2021 | Mar 31, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 11, 2021 | Jan 7, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2021 | Jan 5, 2021 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2020 | Nov 30, 2020 | 000-55088 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2020 | Jun 5, 2020 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2020 | Jun 5, 2020 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2020 | Nov 8, 2019 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2019 | Jan 11, 2019 | 000-55088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 15, 2018 | Dec 29, 2017 | 000-55088 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2018 | Sep 30, 2017 | 000-55088 |
| 4 | Open Document | Open Filing | Sep 30, 2015 | Sep 29, 2015 | 000-54405 | |
| 4 | Open Document | Open Filing | May 19, 2015 | May 18, 2015 | 000-54405 | |
| 4 | Open Document | Open Filing | FORM 4 | Apr 21, 2015 | Apr 20, 2015 | 001-34647 |
| 4 | Open Document | Open Filing | Jan 2, 2015 | Dec 30, 2014 | 001-34647 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 2, 2014 | Nov 25, 2014 | 000-54405 |
| 4 | Open Document | Open Filing | Nov 26, 2014 | Nov 24, 2014 | 001-34647 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 18, 2014 | May 27, 2014 | 000-54405 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | May 12, 2014 | ||
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 12, 2014 | Apr 30, 2014 | 000-55203 |