| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2022 | Jun 17, 2022 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | May 14, 2021 | May 12, 2021 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2020 | May 28, 2020 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2020 | Mar 23, 2020 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2019 | May 28, 2019 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | May 7, 2019 | May 7, 2019 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2018 | Jun 5, 2018 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 24, 2017 | Jul 24, 2017 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2016 | Jan 1, 2016 | 001-32600 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2015 | Dec 14, 2015 | 001-32600 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 22, 2015 | Jun 16, 2015 | 001-32600 |