| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 19 Jul 2022 | 24 Jun 2022 | 001-37648 | |
| 4 | Open Document | Open Filing | 16 Mar 2022 | 16 Mar 2022 | 001-37648 | |
| 4 | Open Document | Open Filing | 28 Jun 2021 | 24 Jun 2021 | 001-37648 | |
| 4 | Open Document | Open Filing | 15 Dec 2020 | 11 Dec 2020 | 001-37648 | |
| 4 | Open Document | Open Filing | 19 Jun 2020 | 17 Jun 2020 | 001-37648 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jul 2019 | 17 Jul 2019 | 001-37648 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Sep 2018 | 30 Aug 2018 | 001-37648 |
| 4 | Open Document | Open Filing | 31 Jul 2018 | 26 Jul 2018 | 001-37648 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jul 2018 | 01 Jul 2018 | 001-12830 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 27 Apr 2018 | 21 Feb 2018 | 001-12830 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jun 2017 | 15 Jun 2017 | 001-37648 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Feb 2016 | 16 Feb 2016 | 001-37648 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 31 Dec 2015 | 30 Dec 2015 | 001-37648 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Jun 2012 | 15 Jun 2012 | 001-35337 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jun 2012 | 31 May 2012 | 001-35337 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jun 2012 | 31 May 2012 | 001-35337 |
| 4 | Open Document | Open Filing | 01 Jun 2012 | 31 May 2012 | 001-03619 | |
| 4 | Open Document | Open Filing | 16 May 2012 | 15 May 2012 | 001-03619 | |
| 4 | Open Document | Open Filing | 01 May 2012 | 30 Apr 2012 | 001-03619 | |
| 4 | Open Document | Open Filing | 27 Feb 2012 | 23 Feb 2012 | 001-03619 |