| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2021 | 17 May 2021 | 001-38184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2020 | 18 May 2020 | 001-38184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2019 | 13 May 2019 | 001-38184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Dec 2018 | 13 Dec 2018 | 001-38184 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2018 | 20 Jun 2018 | 001-38184 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Dec 2017 | 05 Dec 2017 | 001-38184 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2017 | 17 Oct 2017 | 001-38184 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2014 | 24 Mar 2014 | 001-09047 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2014 | 20 Mar 2014 | 001-09047 |
| 4/A | Open Document | Open Filing | FORM 4/A | 24 Feb 2014 | 16 Feb 2014 | 001-09047 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Feb 2014 | 16 Feb 2014 | 001-09047 |