| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 16, 2021 | Sep 14, 2021 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 13, 2021 | Oct 9, 2020 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 29, 2020 | Sep 16, 2020 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 15, 2020 | Sep 14, 2020 | 000-20355 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Sep 15, 2020 | Dec 17, 2019 | 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 | Sep 20, 2019 | Sep 18, 2019 | 000-20355 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Sep 20, 2019 | Sep 1, 2019 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2019 | Oct 25, 2018 | 000-20355 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Oct 30, 2018 | Oct 2, 2018 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2018 | Oct 5, 2018 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 4, 2018 | Oct 2, 2018 | 000-20355 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jan 9, 2018 | May 24, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 20, 2017 | Oct 24, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2017 | Oct 22, 2017 | 000-20355 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Oct 5, 2017 | Oct 2, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 3, 2017 | Oct 2, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2017 | Jan 10, 2017 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2016 | Dec 9, 2016 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 25, 2016 | Oct 14, 2016 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 7, 2016 | Oct 5, 2016 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 1, 2015 | Oct 30, 2009 | 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 | Oct 15, 2015 | Oct 13, 2015 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 28, 2015 | Sep 24, 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 29, 2014 | Oct 29, 2014 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 23, 2014 | Oct 22, 2014 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 9, 2014 | Oct 9, 2014 | 000-20355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 30, 2014 | Sep 26, 2014 | 000-20355 |