| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 3, 2023 | Nov 1, 2023 | 001-15103 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 15, 2023 | May 5, 2023 | 001-15103 |
| 4 | Open Document | Open Filing | 4 | Dec 30, 2020 | Dec 28, 2020 | 001-05415 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Apr 10, 2020 | ||
| 4 | Open Document | Open Filing | 4 | Apr 1, 2020 | Mar 27, 2020 | 001-05415 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Mar 9, 2020 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Dec 21, 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2018 | Dec 19, 2018 | 001-05415 |
| 4/A | Open Document | Open Filing | FORM 4/A | Nov 3, 2017 | Aug 31, 2017 | 001-05415 |
| SC 13D | Open Document | Open Filing | SC 13D | Oct 3, 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 | Sep 5, 2017 | Aug 31, 2017 | 001-05415 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2017 | Apr 1, 2017 | 001-05415 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Dec 31, 2016 | 001-05415 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 29, 2016 | Feb 25, 2016 | 001-05415 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 28, 2015 | Jul 24, 2015 | 001-05415 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2015 | Feb 25, 2015 | 001-05415 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 3, 2014 | Apr 1, 2014 | 001-05415 |
| 3 | Open Document | Open Filing | FORM 3 - | Apr 3, 2014 | Apr 1, 2014 | 001-05415 |