| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13D/A | Report | FORM SC 13D/A | Nov 13, 2023 | |
| 8-K | Report | Data | 8-K | Aug 21, 2023 | Aug 21, 2023 |
| SC 13D/A | Report | FORM SC 13D/A | Aug 14, 2023 | |
| SC 13G | Report | PRINCIPAL LIFE INSURANCE CO | Jun 16, 2023 | |
| 8-K | Report | Data | 8-K | Jun 15, 2023 | Jun 15, 2023 |
| 8-K | Report | Data | FORM 8-K | Mar 28, 2023 | Mar 24, 2023 |
| SC 13G/A | Report | 13G/A HOLDINGS REPORT 12-31-2022 | Feb 9, 2023 | |
| SC 13D/A | Report | FORM SC 13D/A | Feb 3, 2023 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Jan 11, 2023 | |
| SC 13D/A | Report | FORM SC 13D/A | Dec 8, 2022 | |
| SC 13D | Report | FORM SC 13D | Oct 20, 2022 | |
| SC 13G | Report | FORM SC 13G | Jul 28, 2022 | |
| SC 13G/A | Report | 13G HOLDINGS REPORT 12312021 | Feb 8, 2022 | |
| SC 13G | Report | SCHEDULE 13G | Jan 24, 2022 | |
| 8-K | Report | 8-K | Jun 16, 2021 | Jun 11, 2021 |
| SC 13G/A | Report | KARPUS INVESTMENT MGT / KAYNE ANDERSON NEXTGEN ENERGY & INFRASTRUCTURE - SCHEDUL | Feb 12, 2021 | |
| SC 13G | Report | 13G HOLDINGS REPORT 12-31-2020 | Feb 12, 2021 | |
| 8-K | Report | 8-K | Dec 14, 2020 | Dec 9, 2020 |
| SC 13G/A | Report | SC 13G/A | Nov 2, 2020 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Mar 10, 2020 | |
| SC 13G | Report | Feb 14, 2020 | ||
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 3, 2020 | |
| SC 13G/A | Report | AMENDMENT NO. 3 TO SCHEDULE 13G | Feb 12, 2019 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 11, 2019 | |
| SC 13G/A | Report | SCHEDULE 13G AMENDED | Feb 11, 2019 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 6, 2019 | |
| SC 13G | Report | SCHEDULE 13G | Sep 10, 2018 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Sep 10, 2018 | |
| SC 13G | Report | SCHEDULE 13G | Aug 22, 2018 | |
| SC 13G | Report | SCHEDULE 13G | Jan 26, 2018 | |
| SC 13G/A | Report | AMENDMENT NO. 2 TO SCHEDULE 13G | Feb 13, 2017 | |
| SC 13G | Report | SC 13G | Feb 16, 2016 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 16, 2016 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 11, 2016 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 10, 2016 | |
| SC 13G/A | Report | SCHEDULE 13GA | Feb 12, 2015 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 11, 2015 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Jan 14, 2015 | |
| SC 13G/A | Report | AMENDMENT NO.1 TO SCHEDULE 13G | May 8, 2014 | |
| SC 13G | Report | SCHEDULE 13G | May 8, 2014 | |
| SC 13G | Report | SCHEDULE 13G | Feb 12, 2014 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 11, 2014 | |
| SC 13G/A | Report | SCHEDULE 13GA | Feb 10, 2014 | |
| SC 13G | Report | SCHEDULE 13G | Jan 29, 2014 | |
| SC 13G | Report | SCHEDULE 13G | Jan 29, 2014 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Jul 10, 2013 | |
| SC 13G | Report | SCHEDULE 13G | Feb 12, 2013 |