| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 13, 2023 | Apr 11, 2023 | 001-35600 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 16, 2022 | Jun 14, 2022 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2021 | Jun 15, 2021 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2021 | Mar 19, 2021 | 001-35600 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2020 | Jun 16, 2020 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 18, 2020 | Jun 16, 2020 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2019 | Oct 22, 2019 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2019 | Oct 2, 2019 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 20, 2019 | Jun 18, 2019 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2018 | Dec 10, 2018 | 000-11736 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2018 | Oct 22, 2018 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2018 | Oct 22, 2018 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 28, 2018 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 18, 2018 | Sep 17, 2018 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2018 | Jun 19, 2018 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2017 | Dec 10, 2017 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2017 | Sep 28, 2017 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 25, 2017 | Sep 22, 2017 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 18, 2017 | Sep 17, 2017 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2017 | Jun 20, 2017 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2017 | Jan 27, 2017 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2016 | Dec 10, 2016 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2016 | Oct 28, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2016 | Oct 28, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 26, 2016 | Sep 23, 2016 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 23, 2016 | Sep 22, 2016 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 21, 2016 | Sep 17, 2016 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 1, 2016 | Jul 29, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 6, 2016 | Jul 1, 2016 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 23, 2016 | Jun 21, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2016 | Apr 29, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2016 | Apr 4, 2016 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2016 | Mar 15, 2016 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2016 | Jan 29, 2016 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 5, 2016 | Jan 2, 2016 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2015 | Dec 10, 2015 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2015 | Oct 30, 2015 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 2, 2015 | Oct 2, 2015 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2015 | Sep 25, 2015 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 24, 2015 | Sep 23, 2015 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 22, 2015 | Sep 18, 2015 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 18, 2015 | Sep 17, 2015 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2015 | Jul 31, 2015 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 7, 2015 | Jul 2, 2015 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 22, 2015 | Jun 18, 2015 | 001-35600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2015 | May 1, 2015 | 001-35600 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2015 | Mar 10, 2015 | 001-35600 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 6, 2015 | Jan 2, 2015 | 001-34507 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2014 | Sep 26, 2014 | 000-11736 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 24, 2014 | Sep 22, 2014 | 000-11736 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2014 | Jan 2, 2014 | 001-34507 |