| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 28, 2022 | Apr 26, 2022 | 001-39228 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2021 | May 27, 2021 | 001-39228 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 28, 2020 | Dec 23, 2020 | 001-39228 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Oct 13, 2020 | Oct 8, 2020 | 001-39228 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2015 | Jun 4, 2015 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 13, 2015 | Jan 9, 2015 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Jan 2, 2015 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 22, 2014 | Dec 18, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 16, 2014 | Dec 12, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2014 | Dec 11, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2014 | Dec 8, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2014 | Dec 5, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2014 | Nov 28, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2014 | Nov 25, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2014 | Oct 29, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2014 | Oct 24, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 20, 2014 | Oct 16, 2014 | 001-04423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 22, 2014 | Sep 18, 2014 | 001-04423 |