| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Apr 25, 2025 | Apr 23, 2025 | 000-21039 | |
| 4 | Open Document | Open Filing | Apr 26, 2024 | Apr 24, 2024 | 000-21039 | |
| 4 | Open Document | Open Filing | Apr 28, 2023 | Apr 26, 2023 | 000-21039 | |
| 4 | Open Document | Open Filing | Apr 29, 2022 | Apr 27, 2022 | 000-21039 | |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 29, 2021 | Apr 27, 2021 | 000-21039 |
| 4 | Open Document | Open Filing | Feb 26, 2021 | Feb 25, 2021 | 001-31225 | |
| 3/A | Open Document | Open Filing | Feb 18, 2021 | Sep 1, 2020 | 001-31225 | |
| 4 | Open Document | Open Filing | Feb 18, 2021 | Feb 16, 2021 | 001-31225 | |
| 4 | Open Document | Open Filing | FORM 4 - | Jan 5, 2021 | Jan 4, 2021 | 000-21039 |
| 3 | Open Document | Open Filing | FORM 3 - | Jan 5, 2021 | Jan 4, 2021 | 000-21039 |
| 3 | Open Document | Open Filing | Sep 10, 2020 | Sep 1, 2020 | 001-31225 | |
| 4 | Open Document | Open Filing | Feb 22, 2019 | Feb 21, 2019 | 001-33525 | |
| 4 | Open Document | Open Filing | Sep 4, 2018 | Aug 29, 2018 | 001-33525 | |
| 4 | Open Document | Open Filing | Oct 5, 2017 | Sep 14, 2017 | 001-33525 | |
| 4/A | Open Document | Open Filing | Jul 17, 2017 | Mar 6, 2017 | 001-33525 | |
| 4 | Open Document | Open Filing | Mar 8, 2017 | Mar 6, 2017 | 001-33525 | |
| 3 | Open Document | Open Filing | Mar 8, 2017 | Mar 6, 2017 | 001-33525 |