| 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 | Mar 3, 2023 | Mar 1, 2023 | 001-12421 |
| 4/A | Open Document | Open Filing | AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Dec 6, 2022 | May 13, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 23, 2022 | Jun 23, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 22, 2022 | Jun 17, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 15, 2022 | Jun 13, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | May 18, 2022 | May 16, 2022 | 001-12421 |
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | Feb 2, 2022 | Dec 31, 2021 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2021 | Feb 17, 2021 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 26, 2021 | Dec 31, 2020 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2019 | Dec 31, 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2018 | Apr 4, 2018 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2018 | Dec 31, 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 22, 2018 | Jan 19, 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 28, 2017 | Dec 26, 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 22, 2017 | Dec 20, 2017 | 001-12421 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Dec 31, 2016 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2017 | Dec 31, 2016 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2016 | Oct 26, 2016 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2016 | Feb 27, 2016 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2016 | Dec 31, 2015 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2015 | Mar 2, 2015 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2015 | Dec 31, 2014 | 001-12421 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 13, 2014 | May 12, 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 13, 2014 | Aug 11, 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2014 | May 12, 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2014 | Mar 13, 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Mar 2, 2014 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2014 | Dec 31, 2013 | 001-12421 |