| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 21, 2024 | May 20, 2024 | 000-14319 | |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2019 | Mar 29, 2019 | 000-14319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 20, 2017 | Apr 20, 2017 | 000-14319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 16, 2016 | Aug 10, 2016 | 000-14319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 23, 2016 | May 17, 2016 | 000-14319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 27, 2016 | Jan 25, 2016 | 000-14319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 25, 2014 | Nov 13, 2013 | 000-14319 |