| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Dec 1, 2023 | Nov 30, 2023 | 001-39285 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2020 | May 5, 2020 | 001-39285 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 2, 2018 | Apr 2, 2018 | 001-33037 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2017 | Jun 23, 2017 | 001-33037 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 26, 2017 | Jun 23, 2017 | 001-33037 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2017 | Jun 23, 2017 | 000-23565 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 3, 2017 | Mar 31, 2017 | 000-23565 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 22, 2016 | Nov 18, 2016 | 000-23565 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 25, 2016 | Mar 24, 2016 | 000-23565 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 20, 2015 | Mar 19, 2015 | 000-23565 |
| 4 | Open Document | Open Filing | FORM 4 SOTHEN | Oct 16, 2014 | Oct 15, 2014 | 000-23565 |