| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | 14 Feb 2022 | 31 Dec 2021 | 001-39480 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Sep 2020 | 28 Aug 2020 | 001-39480 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2020 | 03 Feb 2020 | 001-35112 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2018 | 14 Jun 2018 | 001-35112 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2018 | 14 Jun 2018 | 001-35112 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Oct 2017 | 17 Oct 2017 | 001-35112 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Aug 2017 | 22 Jun 2017 | 001-35112 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Apr 2016 | 15 Apr 2016 | 001-35112 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Feb 2015 | 18 Feb 2015 | 001-35112 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Dec 2014 | 01 Dec 2014 | 001-35112 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 001-35112 |