| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 21, 2022 | Nov 17, 2022 | 000-21767 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 13, 2021 | Dec 4, 2021 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 23, 2019 | Dec 19, 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 19, 2019 | Nov 15, 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 19, 2018 | Dec 17, 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 12, 2018 | Dec 11, 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 20, 2018 | Nov 17, 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2018 | Jun 1, 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 19, 2017 | Dec 17, 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 21, 2017 | Nov 17, 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 21, 2016 | Nov 17, 2016 | 000-21767 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 14, 2016 | Sep 8, 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 31, 2015 | Mar 29, 2015 | 001-34272 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 11, 2015 | Feb 10, 2015 | 001-34272 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 2, 2014 | Aug 28, 2014 | 001-34272 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2014 | Mar 29, 2014 | 001-34272 |