| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2021 | 13 Dec 2021 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Feb 2021 | 09 Feb 2021 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Dec 2019 | 10 Dec 2019 | 001-37399 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Dec 2016 | 01 Dec 2016 | 001-37399 |
| 3 | Open Document | Open Filing | FORM 3 | 04 Jan 2016 | 23 Dec 2015 | 000-51093 |