| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13 D AMENDMENT 3 | Feb 14, 2023 | ||
| 4 | Open Document | Open Filing | Feb 14, 2023 | Feb 1, 2023 | 001-08966 | |
| SC 13D/A | Open Document | Open Filing | SCH 13D AMENDMENT 2 | Feb 15, 2022 | ||
| 5 | Open Document | Open Filing | Feb 14, 2022 | Dec 31, 2021 | 001-08966 | |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2020 | Apr 29, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 14, 2019 | Nov 12, 2019 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 25, 2019 | Apr 24, 2019 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2018 | Apr 25, 2018 | 001-08966 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D AMENDMENT | Mar 16, 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2018 | Jan 2, 2018 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2017 | Apr 26, 2017 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2017 | Jan 3, 2017 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2016 | Apr 27, 2016 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 4, 2016 | Jan 4, 2016 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 15, 2015 | Dec 14, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2015 | Jun 5, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 30, 2015 | Apr 29, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 27, 2015 | Mar 26, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 5, 2015 | Jan 2, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2014 | Apr 30, 2014 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 2, 2014 | Jan 2, 2014 | 001-08966 |