| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 25, 2025 | Mar 22, 2025 | 000-21039 | |
| 4 | Open Document | Open Filing | Feb 27, 2025 | Feb 26, 2025 | 000-21039 | |
| 4 | Open Document | Open Filing | Feb 29, 2024 | Feb 28, 2024 | 000-21039 | |
| 4 | Open Document | Open Filing | Feb 24, 2023 | Feb 22, 2023 | 000-21039 | |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 28, 2022 | Feb 24, 2022 | 000-21039 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2021 | Mar 19, 2021 | 001-38002 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 23, 2021 | Mar 22, 2021 | 000-21039 |
| 3 | Open Document | Open Filing | FORM 3 - | Mar 23, 2021 | Mar 22, 2021 | 000-21039 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2021 | Mar 16, 2021 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2021 | Mar 11, 2021 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 25, 2020 | Nov 24, 2020 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2020 | Mar 16, 2020 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2020 | Mar 10, 2020 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | 001-38002 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2019 | Mar 15, 2019 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2019 | Mar 15, 2019 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2019 | Mar 6, 2019 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Dec 31, 2018 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2018 | Mar 30, 2018 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2018 | Mar 7, 2018 | 001-38002 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 31, 2017 | 001-38002 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2017 | Jun 14, 2017 | 001-38002 |
| 4 | Open Document | Open Filing | 4 | Jul 24, 2017 | Jul 20, 2017 | 001-38002 |
| 4 | Open Document | Open Filing | 4 | Jun 16, 2017 | Jun 14, 2017 | 001-38002 |
| 3 | Open Document | Open Filing | 3 | Jan 31, 2017 | Jan 31, 2017 | 001-38002 |