| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2022 | Jan 2, 2022 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2021 | Jan 2, 2021 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2020 | Jan 2, 2020 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2019 | Jan 2, 2019 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2018 | Jan 2, 2018 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Jan 2, 2017 | 000-27754 |
| 4 | Open Document | Open Filing | Apr 25, 2016 | Apr 21, 2016 | 000-50796 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2016 | Jan 2, 2016 | 000-27754 |
| 4 | Open Document | Open Filing | 4 | Apr 23, 2015 | Apr 21, 2015 | 000-50796 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2015 | Jan 2, 2015 | 000-27754 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 2, 2014 | Aug 28, 2014 | 001-03344 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 24, 2014 | Apr 22, 2014 | 000-50796 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2014 | Apr 3, 2014 | 001-34568 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 6, 2014 | Jan 2, 2014 | 001-03344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2014 | Jan 2, 2014 | 001-34568 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2014 | Jan 2, 2014 | 000-27754 |