| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 28 May 2021 | 27 May 2021 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 May 2020 | 28 May 2020 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 31 May 2019 | 29 May 2019 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 25 May 2018 | 23 May 2018 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 Apr 2017 | 17 Apr 2017 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 07 Jul 2016 | 05 Jul 2016 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Jun 2016 | 09 Jun 2016 | 001-35986 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 May 2015 | 14 May 2015 | 001-35986 |
| 4 | Open Document | Open Filing | 4 | 16 May 2014 | 15 May 2014 | 001-35986 |
| 4 | Open Document | Open Filing | 4 | 28 Feb 2014 | 26 Feb 2014 | 001-35986 |
| 3 | Open Document | Open Filing | 3 | 20 Feb 2014 | 10 Feb 2014 | 001-35986 |