| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2021 | 11 May 2021 | 001-39110 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2020 | 12 May 2020 | 001-39110 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2020 | 25 Oct 2019 | 001-39110 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Oct 2019 | 25 Oct 2019 | 001-39110 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 29 Oct 2019 | 25 Oct 2019 | 001-39110 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Oct 2019 | 25 Oct 2019 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2019 | 15 May 2019 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2018 | 16 May 2018 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2017 | 17 May 2017 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2016 | 20 Jul 2016 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2015 | 29 Jul 2015 | 001-36226 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2015 | 28 Jan 2015 | 001-36226 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2014 | 12 Dec 2014 | 001-36226 |