| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2023 | May 17, 2023 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 3, 2022 | Nov 2, 2022 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2022 | May 18, 2022 | 000-32259 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Feb 9, 2022 | Feb 8, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 12, 2021 | Nov 10, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 25, 2021 | Aug 24, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 3, 2021 | Aug 3, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 24, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2021 | May 19, 2021 | 000-32259 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Mar 24, 2021 | Feb 8, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 10, 2021 | Feb 8, 2021 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 4, 2020 | Nov 4, 2020 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 28, 2020 | Oct 27, 2020 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2020 | Aug 5, 2020 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2020 | May 20, 2020 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2020 | May 15, 2020 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 29, 2019 | Oct 28, 2019 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 28, 2019 | May 23, 2019 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2019 | May 15, 2019 | 000-32259 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2019 | Dec 31, 2018 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 23, 2018 | Aug 23, 2018 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2018 | May 24, 2018 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2018 | May 16, 2018 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2017 | May 17, 2017 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 29, 2016 | Nov 29, 2016 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2016 | May 18, 2016 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2016 | May 13, 2016 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2016 | May 3, 2016 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2015 | Aug 20, 2015 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 14, 2015 | May 13, 2015 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 7, 2015 | May 6, 2015 | 000-32259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2014 | May 15, 2014 | 000-32259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2014 | Feb 4, 2014 | 000-32259 |