| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Aug 5, 2025 | Aug 1, 2025 | 000-23125 | |
| 3 | Open Document | Open Filing | Jul 23, 2025 | Jul 15, 2025 | 000-23125 | |
| 4 | Open Document | Open Filing | 4 | Sep 12, 2016 | Sep 9, 2016 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2016 | May 26, 2016 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2016 | May 19, 2016 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2015 | Jul 31, 2015 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2015 | May 15, 2015 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2015 | Feb 10, 2015 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 10, 2014 | Jun 6, 2014 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2014 | May 30, 2014 | 001-06549 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2014 | May 28, 2014 | 001-06549 |