| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 5, 2021 | Oct 1, 2021 | 000-55775 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 4, 2021 | Oct 1, 2021 | 000-55434 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 27, 2017 | Apr 27, 2017 | 000-55775 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 29, 2015 | Apr 29, 2015 | 000-55434 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 4, 2014 | Dec 3, 2014 | 000-54371 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 21, 2014 | Jan 17, 2014 | 000-54371 |