| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Feb 28, 2024 | Feb 27, 2024 | 000-50070 | |
| 4 | Open Document | Open Filing | May 23, 2023 | May 23, 2023 | 000-50070 | |
| 4 | Open Document | Open Filing | Feb 27, 2023 | Feb 22, 2023 | 000-50070 | |
| 4 | Open Document | Open Filing | Jun 2, 2022 | Jun 2, 2022 | 000-50070 | |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2022 | Feb 23, 2022 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 8, 2021 | Jun 7, 2021 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 25, 2021 | Feb 24, 2021 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 2, 2020 | Feb 26, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2019 | Apr 1, 2019 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 22, 2019 | Mar 20, 2019 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2019 | Feb 26, 2019 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 28, 2018 | Feb 26, 2018 | 000-50070 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2017 | Mar 3, 2017 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 3, 2017 | Mar 2, 2017 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 27, 2017 | Feb 22, 2017 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2016 | Mar 4, 2016 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2016 | Feb 23, 2016 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 11, 2015 | Dec 10, 2015 | 001-36551 |
| 4/A | Open Document | Open Filing | FORM 4/A | Oct 13, 2015 | Oct 7, 2015 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 9, 2015 | Oct 7, 2015 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 11, 2015 | Aug 10, 2015 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 27, 2015 | Feb 24, 2015 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 24, 2014 | Jul 22, 2014 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 22, 2014 | Jul 21, 2014 | 001-36551 |
| 3 | Open Document | Open Filing | FORM 3 | Jul 17, 2014 | Jul 17, 2014 | 001-36551 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 13, 2014 | Mar 11, 2014 | 000-50070 |