| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2021 | 06 May 2021 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2020 | 07 May 2020 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2019 | 12 Sep 2019 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Sep 2019 | 16 Sep 2019 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Apr 2018 | 23 Apr 2018 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2017 | 19 Apr 2017 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Apr 2016 | 21 Apr 2016 | 001-37482 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2016 | 31 Dec 2015 | 001-37482 |
| 3 | Open Document | Open Filing | FORM 3 | 02 Jul 2015 | 02 Jul 2015 | 001-37482 |