| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2021 | 06 May 2021 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2020 | 29 Oct 2019 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2018 | 02 Feb 2018 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jul 2016 | 06 Jul 2016 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jul 2016 | 30 Jun 2016 | 001-34055 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Jan 2015 | 17 Dec 2014 | 001-34055 |