| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13D/A | Open Document | Open Filing | May 9, 2025 | |||
| SCHEDULE 13D/A | Open Document | Open Filing | Mar 7, 2025 | |||
| SCHEDULE 13D/A | Open Document | Open Filing | Feb 5, 2025 | |||
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Nov 20, 2024 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Mar 10, 2023 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 | Jul 7, 2022 | ||
| 4 | Open Document | Open Filing | Jul 6, 2022 | Jul 6, 2022 | 000-55911 | |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Apr 1, 2022 | ||
| 3 | Open Document | Open Filing | Apr 1, 2022 | Mar 28, 2022 | 000-26591 | |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Aug 5, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jul 14, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jul 7, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jun 10, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jan 15, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Sep 14, 2020 | ||
| SC 13D | Open Document | Open Filing | SC 13D | Oct 30, 2019 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jul 1, 2019 | ||
| SC 13D/A | Open Document | Open Filing | May 16, 2019 | |||
| SC 13D/A | Open Document | Open Filing | Sep 7, 2018 | |||
| SC 13D | Open Document | Open Filing | Apr 10, 2018 | |||
| SC 13D | Open Document | Open Filing | Mar 29, 2018 | |||
| SC 13D/A | Open Document | Open Filing | Mar 27, 2018 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 26, 2018 | Mar 23, 2018 | 001-07939 |
| SC 13D/A | Open Document | Open Filing | Mar 16, 2018 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2018 | Mar 14, 2018 | 001-07939 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2018 | Mar 12, 2018 | 001-07939 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2018 | Mar 8, 2018 | 001-07939 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2018 | Mar 5, 2018 | 001-07939 |
| SC 13D/A | Open Document | Open Filing | Dec 20, 2017 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 19, 2017 | Dec 15, 2017 | 001-07939 |
| SC 13D/A | Open Document | Open Filing | Nov 13, 2017 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2017 | Nov 7, 2017 | 001-07939 |
| SC 13D/A | Open Document | Open Filing | Aug 8, 2017 | |||
| SC 13D/A | Open Document | Open Filing | Jul 10, 2017 | |||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2017 | Apr 20, 2017 | 001-07939 |
| SC 13D/A | Open Document | Open Filing | Apr 25, 2017 | |||
| SC 13D/A | Open Document | Open Filing | Dec 7, 2016 | |||
| SC 13D/A | Open Document | Open Filing | May 20, 2016 | |||
| SC 13D/A | Open Document | Open Filing | May 12, 2016 | |||
| SC 13D | Open Document | Open Filing | Dec 18, 2015 | |||
| SC 13D/A | Open Document | Open Filing | Oct 6, 2015 | |||
| SC 13D/A | Open Document | Open Filing | Feb 9, 2015 | |||
| SC 13D/A | Open Document | Open Filing | Jan 28, 2015 | |||
| SC 13D | Open Document | Open Filing | Dec 1, 2014 | |||
| SC 13D | Open Document | Open Filing | Oct 30, 2014 | |||
| SC 13D/A | Open Document | Open Filing | Aug 1, 2014 | |||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Jun 23, 2014 | ||
| SC 13D/A | Open Document | Open Filing | Apr 23, 2014 | |||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 21, 2014 | Apr 9, 2014 | 333-190348 |
| SC 13D/A | Open Document | Open Filing | Apr 8, 2014 |