| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 18, 2024 | Jan 17, 2024 | 000-08814 | |
| 4 | Open Document | Open Filing | Jul 19, 2023 | Jul 14, 2023 | 000-08814 | |
| 4 | Open Document | Open Filing | Jan 13, 2023 | Jan 11, 2023 | 000-08814 | |
| 4 | Open Document | Open Filing | Jan 14, 2022 | Jan 12, 2022 | 000-08814 | |
| 4 | Open Document | Open Filing | Jan 15, 2021 | Jan 13, 2021 | 000-08814 | |
| 4 | Open Document | Open Filing | Sep 25, 2020 | Sep 23, 2020 | 000-08814 | |
| 4 | Open Document | Open Filing | Jan 17, 2020 | Jan 15, 2020 | 000-08814 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 17, 2019 | Jan 16, 2019 | 000-08814 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2018 | Dec 18, 2018 | 000-08814 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 18, 2018 | Jan 17, 2018 | 000-08814 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 17, 2018 | Jan 15, 2018 | 000-08814 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2017 | Jan 18, 2017 | 000-08814 |
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2016 | May 10, 2016 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2016 | Mar 15, 2016 | 001-12084 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2016 | Jan 13, 2016 | 000-08814 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 24, 2015 | Nov 24, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2015 | Aug 25, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2015 | Jun 9, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | May 14, 2015 | May 12, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 5, 2015 | Mar 3, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2015 | Jan 14, 2015 | 000-08814 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2015 | Jan 2, 2015 | 001-12084 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2014 | May 13, 2014 | 001-12084 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 17, 2014 | Jan 15, 2014 | 000-08814 |