| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 28, 2022 | Mar 24, 2022 | 001-40360 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jan 10, 2022 | Jan 1, 2022 | 001-40360 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 18, 2021 | Aug 16, 2021 | 001-40030 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 18, 2021 | Aug 16, 2021 | 001-40030 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 31, 2019 | Jan 29, 2019 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 15, 2019 | Jan 14, 2019 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 6, 2017 | Jul 10, 2017 | 000-20713 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2017 | Sep 29, 2017 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 9, 2017 | Jun 8, 2017 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 27, 2016 | Jun 24, 2016 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 3, 2016 | Jun 2, 2016 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 4, 2016 | Mar 2, 2016 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 21, 2016 | Jan 19, 2016 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 8, 2015 | Apr 6, 2015 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 14, 2014 | Sep 17, 2014 | 000-20713 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 4, 2014 | Apr 3, 2014 | 000-20713 |