| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Feb 2023 | 13 Feb 2023 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Nov 2022 | 14 Nov 2022 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Feb 2022 | 10 Feb 2022 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Nov 2021 | 12 Nov 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 16 Feb 2021 | 11 Feb 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 12 Nov 2020 | 10 Nov 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 13 Feb 2020 | 11 Feb 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 10 Jul 2019 | 08 Jul 2019 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 11 Jul 2018 | 09 Jul 2018 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 12 Jul 2017 | 10 Jul 2017 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 27 Apr 2015 | 23 Apr 2015 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | 21 Nov 2012 | 20 Nov 2012 | 001-35172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Oct 2012 | 05 Oct 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2012 | 28 Sep 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2012 | 14 Aug 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2012 | 29 Jun 2012 | 001-31219 |
| 4 | Open Document | Open Filing | 4 | 19 Jun 2012 | 15 Jun 2012 | 001-35172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2012 | 15 May 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2012 | 30 Mar 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2012 | 14 Feb 2012 | 001-31219 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2012 | 30 Dec 2011 | 001-31219 |