| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2023 | Dec 19, 2023 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 11, 2022 | Oct 6, 2022 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2021 | Oct 12, 2021 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2020 | Oct 12, 2020 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 8, 2020 | Oct 6, 2020 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2019 | Dec 19, 2019 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2019 | Mar 25, 2019 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 27, 2018 | Sep 25, 2018 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2018 | Mar 15, 2018 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 19, 2017 | Sep 15, 2017 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2017 | Mar 15, 2017 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 16, 2016 | Sep 15, 2016 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2016 | Apr 1, 2016 | 001-15723 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 8, 2015 | Oct 1, 2015 | 001-15723 |
| 3 | Open Document | Open Filing | FORM 3 | Oct 8, 2015 | Oct 1, 2015 | 001-15723 |