| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2021 | 01 Dec 2021 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2020 | 01 Dec 2020 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Dec 2019 | 01 Dec 2019 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2019 | 28 May 2019 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Dec 2018 | 01 Dec 2018 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Dec 2017 | 01 Dec 2017 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Mar 2017 | 10 Mar 2017 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Dec 2016 | 01 Dec 2016 | 001-37399 |
| 3 | Open Document | Open Filing | FORM 3 | 18 May 2015 | 18 May 2015 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Apr 2015 | 01 Apr 2015 | 000-51093 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jul 2014 | 01 Apr 2012 | 000-51093 |
| 4/A | Open Document | Open Filing | FORM 4/A | 11 Jul 2014 | 01 Apr 2013 | 000-51093 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Apr 2014 | 01 Apr 2014 | 000-51093 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Apr 2013 | 01 Apr 2013 | 000-51093 |