| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Dec 4, 2024 | ||
| 5 | Open Document | Open Filing | FORM 5 | Nov 5, 2021 | Dec 31, 2018 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 6, 2021 | Nov 5, 2019 | 000-27781 |
| SC 13D | Open Document | Open Filing | SC 13D | Jan 15, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jan 11, 2021 | Jan 6, 2021 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2020 | Dec 2, 2020 | 000-27781 |
| 4/A | Open Document | Open Filing | FORM 4 A | Dec 4, 2020 | Nov 30, 2020 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2020 | Nov 30, 2020 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 20, 2020 | Nov 18, 2020 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 20, 2020 | Sep 30, 2020 | 000-27781 |
| 144 | Open Document | Open Filing | FORM 144 | Oct 22, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jul 30, 2020 | Jul 21, 2020 | 000-27781 |
| 5 | Open Document | Open Filing | FORM 5 | Apr 17, 2018 | Dec 31, 2017 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | May 31, 2017 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Apr 26, 2017 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Mar 24, 2017 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Jan 30, 2017 | 000-27781 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Jan 5, 2017 | 000-27781 |
| 5 | Open Document | Open Filing | FORM 5 | Jun 12, 2017 | Dec 31, 2016 | 000-27781 |
| 5 | Open Document | Open Filing | FORM 5 | Jun 12, 2017 | Dec 31, 2015 | 000-27781 |