| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 3, 2022 | Jun 2, 2022 | 001-39541 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 21, 2021 | Sep 17, 2021 | 001-39541 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 15, 2021 | Jul 13, 2021 | 001-39541 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 15, 2021 | Jul 13, 2021 | 001-39541 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2020 | Apr 1, 2020 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2019 | Aug 1, 2019 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2019 | Dec 31, 2018 | 001-34960 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 9, 2018 | Aug 7, 2018 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2018 | Dec 31, 2017 | 001-34960 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2017 | Aug 3, 2017 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Dec 31, 2016 | 001-34960 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 11, 2016 | Aug 9, 2016 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2016 | Dec 31, 2015 | 001-34960 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 11, 2015 | Aug 7, 2015 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2015 | Jun 5, 2015 | 001-34960 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2015 | Dec 31, 2014 | 001-34960 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Oct 2, 2014 | Aug 6, 2014 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2014 | Aug 5, 2014 | 001-04721 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2014 | Dec 31, 2013 | 001-34960 |