| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 3, 2025 | Jun 1, 2025 | 000-33043 | |
| 4 | Open Document | Open Filing | May 23, 2024 | May 21, 2024 | 000-33043 | |
| 4 | Open Document | Open Filing | May 25, 2023 | May 23, 2023 | 000-33043 | |
| 4 | Open Document | Open Filing | Mar 9, 2023 | Mar 7, 2023 | 000-33043 | |
| 4 | Open Document | Open Filing | May 26, 2022 | May 24, 2022 | 000-33043 | |
| 4 | Open Document | Open Filing | FORM 4 - | May 26, 2021 | May 25, 2021 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 27, 2020 | May 26, 2020 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 19, 2020 | Feb 19, 2020 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 15, 2019 | May 14, 2019 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 16, 2018 | May 15, 2018 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 24, 2017 | May 23, 2017 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 25, 2016 | May 24, 2016 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | May 21, 2015 | May 19, 2015 | 000-33043 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 20, 2014 | May 20, 2014 | 000-33043 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Jun 18, 2014 | Jan 1, 2014 | 000-33043 |
| 4 | Open Document | Open Filing | Jun 9, 2014 | May 27, 2014 | 001-00225 | |
| 4 | Open Document | Open Filing | Apr 28, 2014 | Apr 25, 2014 | 001-00225 | |
| 4 | Open Document | Open Filing | Feb 19, 2014 | Feb 17, 2014 | 001-00225 | |
| 4 | Open Document | Open Filing | FORM 4 - | Jan 3, 2014 | Jan 1, 2014 | 000-33043 |
| 3 | Open Document | Open Filing | FORM 3 - | Jan 3, 2014 | Jan 1, 2014 | 000-33043 |