| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Apr 25, 2025 | Apr 23, 2025 | 000-21039 | |
| 3 | Open Document | Open Filing | Apr 25, 2025 | Apr 23, 2025 | 000-21039 | |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2017 | Feb 1, 2017 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 18, 2016 | Oct 14, 2016 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 16, 2016 | Aug 12, 2016 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2015 | Oct 22, 2015 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 14, 2015 | Aug 12, 2015 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 15, 2015 | Apr 13, 2015 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 17, 2014 | Oct 15, 2014 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 14, 2014 | Aug 12, 2014 | 000-25232 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jun 3, 2014 | Apr 13, 2014 | 000-25232 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 15, 2014 | Apr 13, 2014 | 000-25232 |