| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Dec 12, 2024 | Dec 10, 2024 | 001-06227 | |
| 4 | Open Document | Open Filing | Dec 14, 2023 | Dec 12, 2023 | 001-06227 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2022 | Dec 9, 2022 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2021 | Dec 10, 2021 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2020 | Dec 11, 2020 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2019 | Dec 13, 2019 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 9, 2019 | Sep 27, 2019 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2018 | Dec 11, 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 10, 2018 | Dec 7, 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 9, 2018 | Aug 8, 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 22, 2017 | Dec 22, 2017 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2017 | Dec 15, 2017 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2016 | Dec 9, 2016 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 29, 2016 | Nov 27, 2016 | 001-06227 |
| 4/A | Open Document | Open Filing | FORM 4/A | Dec 18, 2015 | Dec 11, 2015 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2015 | Dec 11, 2015 | 001-06227 |
| 4/A | Open Document | Open Filing | FORM 4/A | Dec 4, 2015 | Dec 15, 2014 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 24, 2015 | Jul 23, 2015 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2014 | Dec 12, 2014 | 001-06227 |