| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Nov 3, 2021 | Nov 1, 2021 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 | May 14, 2021 | May 12, 2021 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2021 | Mar 4, 2021 | 000-30739 |
| 4 | Open Document | Open Filing | 4 | May 14, 2020 | May 12, 2020 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2019 | May 15, 2019 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2018 | Nov 1, 2018 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2018 | May 15, 2018 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 7, 2018 | Feb 5, 2018 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 4, 2017 | Oct 2, 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 17, 2017 | Jul 6, 2017 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 17, 2017 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2017 | May 8, 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 13, 2017 | Apr 7, 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2016 | Jun 8, 2016 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2016 | May 23, 2016 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2016 | May 19, 2016 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2016 | May 19, 2016 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2015 | May 15, 2015 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2015 | Mar 6, 2015 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 13, 2015 | Jan 11, 2015 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 9, 2015 | Jan 8, 2015 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 20, 2014 | Nov 18, 2014 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 14, 2014 | Nov 12, 2014 | 001-36593 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Nov 12, 2014 | Nov 12, 2014 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 6, 2014 | May 2, 2014 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2014 | Jan 10, 2014 | 000-30739 |