| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jun 3, 2021 | May 14, 2021 | 001-04694 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 14, 2021 | 001-04694 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2020 | May 14, 2020 | 001-04694 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 17, 2019 | May 16, 2019 | 001-04694 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 3, 2018 | Jul 2, 2018 | 001-09810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2018 | May 18, 2018 | 001-04694 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | May 21, 2018 | May 18, 2017 | 001-04694 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2018 | Feb 8, 2018 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2018 | Feb 5, 2018 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jul 3, 2017 | 001-09810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2017 | May 18, 2013 | 001-04694 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2017 | Feb 9, 2017 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Feb 9, 2017 | 001-09810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 4, 2016 | Oct 1, 2016 | 001-04694 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Oct 3, 2016 | Oct 1, 2016 | 001-04694 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 6, 2016 | Jul 1, 2016 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2016 | Feb 5, 2016 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2015 | Oct 30, 2015 | 001-05046 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2015 | Jul 1, 2015 | 001-09810 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2015 | Jul 1, 2015 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2015 | May 13, 2015 | 001-05046 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2015 | Mar 1, 2015 | 000-10653 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2015 | Feb 18, 2015 | 000-10653 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 3, 2014 | Sep 1, 2014 | 000-10653 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2014 | May 14, 2014 | 001-05046 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2014 | Mar 1, 2014 | 000-10653 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2014 | Feb 20, 2014 | 000-10653 |