| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Aug 31, 2022 | Aug 30, 2022 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 29, 2022 | Aug 26, 2022 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2022 | Aug 24, 2022 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 21, 2021 | Oct 20, 2021 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 1, 2021 | Aug 30, 2021 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 30, 2021 | Aug 26, 2021 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2021 | Aug 24, 2021 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2020 | Dec 12, 2020 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 31, 2020 | Aug 29, 2020 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 28, 2020 | Aug 26, 2020 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2020 | Aug 24, 2020 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2020 | Aug 23, 2020 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 12, 2019 | Dec 12, 2019 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 30, 2019 | Aug 29, 2019 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 28, 2019 | Aug 26, 2019 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 27, 2019 | Aug 23, 2019 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2018 | Dec 12, 2018 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 1, 2018 | Sep 28, 2018 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 27, 2018 | Sep 25, 2018 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 29, 2018 | Aug 27, 2018 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 27, 2018 | Aug 23, 2018 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2017 | Dec 12, 2017 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 30, 2017 | Aug 29, 2017 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 28, 2017 | Aug 25, 2017 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 24, 2017 | Aug 23, 2017 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 29, 2016 | Dec 27, 2016 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 22, 2016 | Dec 22, 2016 | 001-15461 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2016 | Dec 12, 2016 | 001-15461 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 14, 2016 | Dec 12, 2016 | 001-15461 |