| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 8, 2024 | Oct 8, 2024 | 001-05507 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 11, 2022 | Dec 31, 2021 | 001-05507 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 10, 2021 | Jun 9, 2021 | 001-05507 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Apr 30, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2020 | Jun 10, 2020 | 001-05507 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Mar 4, 2020 | ||
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Mar 4, 2020 | Feb 28, 2020 | 001-05507 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 28, 2020 | Feb 28, 2020 | 001-05507 |
| SC 13D/A | Open Document | Open Filing | SC 13D AMENDMENT NO. 3 | Jul 22, 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2019 | Jun 5, 2019 | 001-05507 |
| SC 13D/A | Open Document | Open Filing | SC 13D AMENDMENT NO. 2 | Apr 16, 2019 | ||
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Jan 7, 2019 | Dec 31, 2018 | 001-05507 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2018 | Jun 6, 2018 | 001-05507 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 12, 2018 | Dec 31, 2017 | 001-05507 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 21, 2017 | Jul 21, 2017 | 001-05507 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jun 9, 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 20, 2017 | Apr 20, 2017 | 001-05507 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 21, 2017 | Feb 10, 2017 | 001-05507 |
| SC 13D | Open Document | Open Filing | SC 13D | Feb 21, 2017 |