| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 4, 2025 | Jun 2, 2025 | 000-24649 | |
| 4 | Open Document | Open Filing | Nov 1, 2024 | Oct 30, 2024 | 000-24649 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Feb 14, 2024 | ||
| 4 | Open Document | Open Filing | Aug 2, 2023 | Jul 31, 2023 | 000-24649 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Feb 14, 2022 | ||
| 5 | Open Document | Open Filing | FORM 5 - | Feb 14, 2022 | Dec 31, 2021 | 000-24649 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 14, 2022 | Dec 31, 2021 | 000-24649 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Feb 14, 2022 | Sep 27, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 29, 2021 | Sep 27, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 23, 2021 | Jun 21, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 17, 2021 | Jun 15, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 14, 2021 | Jun 10, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | May 14, 2021 | Feb 5, 2021 | 000-24649 |
| SC 13D | Open Document | Open Filing | SC 13D | Feb 16, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jan 8, 2021 | Jan 6, 2021 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2020 | Mar 2, 2020 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 14, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jul 11, 2019 | Jul 9, 2019 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 26, 2019 | Apr 24, 2019 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 5, 2019 | Mar 1, 2019 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 14, 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Nov 16, 2018 | Nov 14, 2018 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 14, 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Nov 16, 2017 | Nov 14, 2017 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 14, 2017 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 16, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Oct 30, 2015 | Oct 28, 2015 | 000-24649 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 29, 2015 | Apr 24, 2015 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 17, 2015 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Sep 18, 2014 | Sep 16, 2014 | 000-24649 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 13, 2014 |