| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 18 Apr 2023 | 31 Mar 2023 | 001-36581 | |
| 3 | Open Document | Open Filing | 03 Jan 2023 | 01 Jan 2023 | 001-36581 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Dec 2020 | 29 Dec 2020 | 001-35963 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2020 | 30 Apr 2020 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jul 2019 | 12 Jul 2019 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Oct 2017 | 16 Oct 2017 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Apr 2017 | 10 Apr 2017 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jun 2016 | 20 Jun 2016 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 May 2016 | 23 May 2016 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Jan 2016 | 07 Jan 2016 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Mar 2015 | 10 Mar 2015 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Feb 2015 | 06 Feb 2015 | 001-35963 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Dec 2014 | 03 Feb 2014 | 001-35963 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Jun 2013 | 13 Jun 2013 | 001-35963 |