| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 144 | Open Document | Open Filing | Nov 14, 2023 | |||
| 144 | Open Document | Open Filing | Nov 14, 2023 | |||
| 144 | Open Document | Open Filing | Nov 13, 2023 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2023 | Jan 27, 2023 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2022 | Jan 28, 2022 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 6, 2021 | Aug 6, 2021 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2021 | Jun 4, 2021 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 22, 2021 | Apr 21, 2021 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2021 | Jan 29, 2021 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 28, 2020 | Mar 9, 2020 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2020 | Apr 27, 2020 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2020 | Jan 31, 2020 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 8, 2019 | May 7, 2019 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2019 | Feb 1, 2019 | 001-38481 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2018 | May 1, 2018 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2018 | Jan 26, 2018 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2017 | Jun 8, 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2017 | May 2, 2017 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2017 | Apr 28, 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2017 | Apr 27, 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2017 | Mar 22, 2017 | 000-26621 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2017 | Jan 27, 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2017 | Jan 27, 2017 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2016 | May 3, 2016 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2016 | Jan 29, 2016 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 7, 2015 | May 5, 2015 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2015 | Jan 30, 2015 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2014 | Dec 18, 2014 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 7, 2014 | May 6, 2014 | 000-26621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2014 | Mar 11, 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Mar 4, 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2014 | Mar 3, 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2014 | Feb 28, 2014 | 000-04887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2014 | Jan 31, 2014 | 000-04887 |