| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2023 | Apr 26, 2023 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | May 6, 2022 | May 4, 2022 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2021 | May 4, 2021 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 20, 2020 | Aug 19, 2020 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2020 | Apr 23, 2020 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2019 | May 31, 2019 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2019 | Apr 26, 2019 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2018 | Apr 24, 2018 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 12, 2017 | Sep 11, 2017 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | May 16, 2017 | May 16, 2017 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 21, 2016 | Apr 20, 2016 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2015 | Apr 21, 2015 | 001-13429 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2015 | Feb 2, 2015 | 001-13429 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Feb 3, 2014 | 001-13429 |