| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2022 | Apr 6, 2022 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Jul 22, 2019 | Jul 22, 2019 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2019 | Feb 21, 2019 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2017 | May 3, 2017 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 31, 2016 | Aug 29, 2016 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 24, 2016 | Aug 22, 2016 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2015 | Jun 23, 2015 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2015 | Jun 3, 2015 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Nov 5, 2014 | Nov 4, 2014 | 001-36441 | 
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 18, 2014 | May 7, 2014 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2014 | Aug 11, 2014 | 001-36441 | 
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2014 | May 7, 2014 | 001-36441 | 
| 3 | Open Document | Open Filing | FORM 3 | May 6, 2014 | May 6, 2014 | 001-36441 |