| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 20, 2021 | Sep 10, 2021 | 001-39546 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 15, 2017 | Jun 14, 2017 | 000-23245 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2017 | Mar 6, 2017 | 000-23245 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2016 | May 24, 2016 | 000-23245 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 7, 2016 | Apr 1, 2016 | 000-23245 |