| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2021 | Jun 16, 2021 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2021 | May 28, 2021 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Feb 26, 2021 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2020 | Nov 30, 2020 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 2, 2020 | Aug 31, 2020 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2020 | Jun 9, 2020 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2020 | May 29, 2020 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2020 | Feb 28, 2020 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2019 | Nov 29, 2019 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 4, 2019 | Aug 30, 2019 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2019 | Jun 21, 2019 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2019 | May 31, 2019 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2019 | Feb 28, 2019 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2018 | Nov 30, 2018 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 5, 2018 | Aug 31, 2018 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2018 | Jun 21, 2018 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2018 | May 31, 2018 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2017 | Nov 30, 2017 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 22, 2017 | Aug 18, 2017 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2017 | Jun 20, 2017 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2017 | May 31, 2017 | 001-34950 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2017 | Feb 28, 2017 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2016 | Nov 30, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2016 | Aug 31, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2016 | Jun 15, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2016 | Jun 6, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2016 | May 31, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2016 | Feb 29, 2016 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2015 | Nov 30, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2015 | Nov 13, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2015 | Aug 31, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2015 | Jun 17, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2015 | May 29, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2015 | Feb 27, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2015 | Feb 20, 2015 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 1, 2014 | Nov 26, 2014 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2014 | Aug 29, 2014 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 25, 2014 | Jun 24, 2014 | 001-34950 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2014 | May 30, 2014 | 001-34950 |
| 4 | Open Document | Open Filing | May 30, 2014 | May 30, 2014 | 001-05893 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Feb 28, 2014 | 001-34950 |