| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 2, 2024 | Dec 28, 2023 | 001-40964 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 1, 2021 | Oct 29, 2021 | 001-40964 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 26, 2021 | Oct 26, 2021 | 001-40964 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 7, 2021 | Oct 5, 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 4, 2021 | Sep 30, 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2021 | Jun 9, 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 12, 2020 | Jun 10, 2020 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2020 | May 18, 2020 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2019 | Nov 20, 2019 | 000-26427 |
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 23, 2019 | Aug 11, 2017 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2019 | Jun 12, 2019 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2019 | Mar 6, 2019 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2018 | Jun 11, 2018 | 000-26427 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 9, 2018 | Feb 26, 2018 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 28, 2018 | Feb 26, 2018 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 1, 2017 | Nov 29, 2017 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 15, 2017 | Aug 11, 2017 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 16, 2017 | Jun 14, 2017 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 14, 2016 | Jun 13, 2016 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2016 | Feb 16, 2016 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 7, 2016 | Jan 5, 2016 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 19, 2015 | Jun 17, 2015 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 9, 2015 | Apr 7, 2015 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 13, 2014 | Jun 11, 2014 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2014 | May 15, 2014 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 17, 2014 | Jan 15, 2014 | 000-26427 |