| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 17, 2023 | Nov 16, 2023 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 19, 2023 | Jan 17, 2023 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 5, 2023 | Jan 3, 2023 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 23, 2022 | Nov 16, 2022 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 19, 2022 | Dec 15, 2022 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 19, 2022 | Oct 17, 2022 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 16, 2021 | Dec 15, 2021 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 17, 2021 | Nov 16, 2021 | 000-21272 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 19, 2021 | Oct 15, 2021 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | Nov 23, 2020 | Nov 19, 2020 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | Nov 18, 2020 | Nov 16, 2020 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | Oct 19, 2020 | Oct 15, 2020 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | Oct 16, 2019 | Oct 15, 2019 | 000-21272 |
| 3 | Open Document | Open Filing | 3 | Oct 16, 2019 | Oct 14, 2019 | 000-21272 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 25, 2019 | Sep 24, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 6, 2019 | Aug 2, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2019 | Jun 25, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2019 | Jun 19, 2019 | 000-27999 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jun 14, 2019 | Jun 3, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2019 | Jun 3, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | May 8, 2019 | May 5, 2019 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2018 | Jun 23, 2018 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2018 | Jun 19, 2018 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2017 | Dec 18, 2017 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2017 | Jun 23, 2017 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2017 | Jun 19, 2017 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 14, 2017 | Feb 13, 2017 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2016 | Jun 23, 2016 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2016 | Jun 21, 2016 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2016 | Jun 18, 2016 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 30, 2016 | Mar 28, 2016 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2015 | Jun 23, 2015 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2015 | Jun 18, 2015 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2014 | Jun 24, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2014 | Jun 23, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2014 | Jun 20, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 20, 2014 | Jun 18, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2014 | Jun 17, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2014 | Mar 20, 2014 | 000-27999 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 13, 2014 | Jan 9, 2014 | 000-27999 |