| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 28, 2022 | Feb 24, 2022 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 1, 2021 | Feb 25, 2021 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2020 | Feb 27, 2020 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 21, 2019 | Feb 19, 2019 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2018 | Feb 21, 2018 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2017 | Feb 21, 2017 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 15, 2016 | Jun 15, 2016 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 22, 2016 | Feb 18, 2016 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2015 | Feb 19, 2015 | 000-13358 |
| 4 | Open Document | Open Filing | Dec 2, 2014 | Nov 28, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Sep 3, 2014 | Aug 29, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Jun 3, 2014 | May 30, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Mar 4, 2014 | Feb 28, 2014 | 000-13358 |