| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Dec 10, 2021 | Dec 10, 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 | OWNERSHIP DOCUMENT | Jun 6, 2019 | Jun 4, 2019 | 001-04383 |
| 4 | Open Document | Open Filing | Feb 27, 2019 | Feb 25, 2019 | 001-04383 | |
| 4 | Open Document | Open Filing | Feb 21, 2019 | Feb 19, 2019 | 001-04383 | |
| 4/A | Open Document | Open Filing | Feb 11, 2019 | Dec 7, 2018 | 001-04383 | |
| 4 | Open Document | Open Filing | Dec 11, 2018 | Dec 7, 2018 | 001-04383 | |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2018 | May 18, 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 16, 2017 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 3, 2017 | Dec 30, 2016 | 001-04383 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 6, 2016 | Dec 2, 2016 | 001-04383 |
| 4 | Open Document | Open Filing | May 3, 2016 | May 2, 2016 | 001-04383 | |
| 4 | Open Document | Open Filing | Mar 1, 2016 | Feb 26, 2016 | 001-04383 | |
| 4 | Open Document | Open Filing | Dec 18, 2015 | Dec 16, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Dec 16, 2015 | Dec 14, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Jun 16, 2015 | Jun 12, 2015 | 001-04383 | |
| 4 | Open Document | Open Filing | Jan 8, 2015 | Jan 7, 2015 | 001-04383 |