| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 25, 2025 | Aug 21, 2025 | 000-23329 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 19, 2025 | Jul 22, 2025 | 000-23329 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 18, 2021 | Aug 16, 2021 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2021 | Apr 1, 2021 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2021 | Feb 19, 2021 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2020 | Mar 18, 2020 | 001-36583 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jan 30, 2020 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 30, 2020 | Jan 16, 2020 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 18, 2019 | Jul 16, 2019 | 001-36583 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Apr 3, 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 | Apr 3, 2019 | Mar 29, 2019 | 001-36583 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Feb 26, 2019 | ||
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 10, 2018 | Nov 30, 2018 | 001-36583 |
| SC 13D | Open Document | Open Filing | SC 13D | Nov 30, 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2016 | Mar 14, 2016 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2015 | Mar 16, 2015 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2015 | Feb 24, 2015 | 001-36583 |
| 3/A | Open Document | Open Filing | FORM 3/A | Jun 24, 2014 | Dec 12, 2012 | 000-24230 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Apr 17, 2014 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jan 30, 2014 | Jan 28, 2014 | 000-24230 |
| 3/A | Open Document | Open Filing | FORM 3/A | Jan 29, 2014 | Dec 12, 2012 | 000-24230 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jan 29, 2014 | Apr 29, 2013 | 000-24230 |