| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2023 | May 3, 2023 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2023 | May 1, 2023 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2022 | Jun 20, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2022 | May 3, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2021 | Jun 23, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2021 | May 4, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2020 | Jun 26, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2020 | May 4, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 28, 2019 | Jun 27, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2019 | May 1, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2018 | Jun 26, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2018 | May 1, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 31, 2017 | Oct 30, 2017 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2017 | Jun 21, 2017 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2016 | Dec 12, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2016 | Jun 21, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2016 | Feb 17, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2015 | Jun 23, 2015 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 25, 2014 | Jul 24, 2014 | 000-29480 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2014 | May 1, 2014 | 000-29480 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2014 | May 1, 2014 | 000-24503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 23, 2014 | 000-24503 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2014 | Jan 21, 2014 | 000-24503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2014 | Jan 24, 2014 | 000-24503 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 22, 2014 | Jan 22, 2014 | 000-24503 |