| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 26, 2021 | Oct 22, 2021 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 11, 2020 | Dec 11, 2020 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 22, 2020 | Oct 22, 2020 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 31, 2019 | Oct 30, 2019 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2019 | Oct 22, 2019 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 26, 2018 | Oct 22, 2018 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2018 | Oct 22, 2018 | 000-20355 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Oct 1, 2018 | Sep 2, 2018 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 19, 2017 | Dec 18, 2017 | 000-20355 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Oct 27, 2017 | Oct 22, 2017 | 000-20355 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Oct 25, 2017 | Oct 24, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2017 | Oct 22, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2017 | Oct 24, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2017 | May 24, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 25, 2016 | Oct 25, 2016 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2016 | Oct 22, 2016 | 000-20355 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Sep 29, 2016 | Aug 28, 2016 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 26, 2015 | Oct 22, 2015 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2015 | Feb 27, 2015 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2014 | Oct 24, 2014 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 23, 2014 | Oct 22, 2014 | 000-20355 |