| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 22, 2021 | Oct 21, 2021 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 22, 2021 | Apr 20, 2021 | 001-36252 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 2, 2020 | Feb 20, 2020 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2020 | Feb 25, 2020 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2020 | Feb 20, 2020 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2019 | Feb 20, 2019 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2018 | Feb 20, 2018 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2017 | Feb 21, 2017 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 29, 2016 | Feb 25, 2016 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2015 | Mar 31, 2015 | 001-36252 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2015 | Feb 24, 2015 | 001-36252 |
| 4 | Open Document | Open Filing | 4 | Jan 20, 2015 | Jan 15, 2015 | 001-36252 |
| 3 | Open Document | Open Filing | 3 | Jan 20, 2015 | Jan 15, 2015 | 001-36252 |
| 4 | Open Document | Open Filing | 4 | Jan 20, 2015 | Jan 15, 2015 | 001-12482 |
| 4 | Open Document | Open Filing | May 9, 2014 | May 7, 2014 | 001-12482 |