| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 4, 2022 | Dec 31, 2021 | 001-04383 | |
| 4 | Open Document | Open Filing | Jul 6, 2021 | Jul 1, 2021 | 001-04383 | |
| 4 | Open Document | Open Filing | Oct 23, 2020 | Oct 21, 2020 | 001-04383 | |
| 4 | Open Document | Open Filing | Dec 10, 2019 | Dec 6, 2019 | 001-04383 | |
| 4 | Open Document | Open Filing | Dec 11, 2018 | Dec 7, 2018 | 001-04383 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 29, 2017 | Dec 27, 2017 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 18, 2017 | Oct 17, 2017 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 28, 2017 | Mar 28, 2017 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 20, 2017 | Mar 17, 2017 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 6, 2016 | Dec 2, 2016 | 001-04383 |
| 4 | Open Document | Open Filing | Oct 29, 2015 | Oct 27, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Oct 27, 2015 | Oct 23, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Oct 23, 2015 | Oct 21, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Jun 25, 2015 | Jun 24, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Jun 16, 2015 | Jun 12, 2015 | 001-04383 | |
| 3 | Open Document | Open Filing | Feb 3, 2015 | Feb 2, 2015 | 001-04383 |