| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | Mar 14, 2022 | Mar 10, 2022 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 11, 2021 | Jun 9, 2021 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 23, 2021 | Apr 21, 2021 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 26, 2020 | Mar 24, 2020 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 26, 2019 | Mar 22, 2019 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 24, 2018 | Apr 20, 2018 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 6, 2017 | Apr 4, 2017 | 001-13274 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 10, 2016 | Mar 8, 2016 | 001-13274 |
| 3 | Open Document | Open Filing | FORM 3 - | May 30, 2014 | May 30, 2014 | 001-13274 |