| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 14, 2023 | Apr 13, 2023 | 001-39561 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 14, 2022 | Apr 13, 2022 | 001-39561 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 14, 2021 | Apr 13, 2021 | 001-39561 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2021 | Dec 31, 2020 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2021 | Jan 4, 2021 | 001-35083 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 7, 2020 | Oct 5, 2020 | 001-39561 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 30, 2020 | Sep 30, 2020 | 001-39561 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2020 | Jan 2, 2020 | 001-35083 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2019 | Mar 14, 2019 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2019 | Mar 14, 2019 | 001-35083 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2019 | Dec 31, 2018 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2019 | Jan 2, 2019 | 001-35083 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Nov 20, 2018 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2018 | Nov 15, 2018 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2018 | Apr 30, 2018 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2018 | Jan 30, 2018 | 001-08267 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 10, 2018 | Dec 31, 2017 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 1, 2018 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2017 | Nov 27, 2017 | 001-35083 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Nov 28, 2017 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2017 | Oct 30, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 31, 2017 | Jul 28, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2017 | Jun 1, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2017 | May 23, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2017 | Apr 28, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2017 | Jan 30, 2017 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2017 | Jan 1, 2017 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2016 | Oct 28, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Oct 3, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2016 | Jul 29, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 6, 2016 | Jun 3, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2016 | Jun 2, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2016 | Apr 29, 2016 | 001-08267 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2016 | Dec 31, 2015 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2016 | Jan 29, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Jan 1, 2016 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2016 | Jan 1, 2016 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2015 | Oct 30, 2015 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 29, 2015 | Jul 27, 2015 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2015 | Jun 11, 2015 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2015 | Apr 29, 2015 | 001-08267 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Apr 29, 2015 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2015 | Mar 11, 2015 | 001-08267 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2015 | Dec 31, 2014 | 001-35083 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2015 | Jan 30, 2015 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Jan 1, 2015 | 001-35083 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Dec 29, 2014 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 4, 2014 | Oct 31, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 30, 2014 | Oct 28, 2014 | 001-08267 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Sep 11, 2014 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 29, 2014 | Jul 28, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2014 | Jun 11, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2014 | Apr 30, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2014 | Jan 31, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2014 | Jan 16, 2014 | 001-08267 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Jan 1, 2014 | 001-35083 |