| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 16 May 2025 | 14 May 2025 | 000-50865 |
| 4 | Open Document | Open Filing | 4 | 17 May 2024 | 15 May 2024 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2023 | 25 May 2023 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2022 | 10 May 2022 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2021 | 20 May 2021 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2020 | 21 May 2020 | 000-50865 |
| 4 | Open Document | Open Filing | 22 Nov 2019 | 20 Nov 2019 | 001-34912 | |
| 4 | Open Document | Open Filing | 17 Jun 2019 | 13 Jun 2019 | 001-34912 | |
| 4 | Open Document | Open Filing | 05 Jun 2019 | 03 Jun 2019 | 001-34912 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 May 2019 | 14 May 2019 | 000-50865 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2019 | 23 Apr 2019 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Apr 2019 | 19 Apr 2019 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Sep 2018 | 07 Sep 2018 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jul 2018 | 23 Jul 2018 | 000-30713 |
| 4 | Open Document | Open Filing | 18 Jun 2018 | 17 Jun 2018 | 001-34912 | |
| 4 | Open Document | Open Filing | 15 Jun 2018 | 13 Jun 2018 | 001-34912 | |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 22 May 2018 | 16 May 2018 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2018 | 16 May 2018 | 000-50865 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Apr 2018 | 19 Apr 2018 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2017 | 24 Jul 2017 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jul 2017 | 01 Jul 2017 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Jun 2017 | 21 Jun 2017 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Jun 2017 | 17 Jun 2017 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jun 2017 | 14 Jun 2017 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 18 May 2017 | 000-50865 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Apr 2017 | 20 Apr 2017 | 000-30713 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 01 Feb 2017 | 31 Dec 2016 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Nov 2016 | 09 Nov 2016 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Oct 2016 | 03 Oct 2016 | 001-34912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jul 2016 | 25 Jul 2016 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jul 2016 | 01 Jul 2016 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2016 | 15 Jun 2016 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2016 | 12 Jun 2016 | 001-34912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2016 | 21 Apr 2016 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Apr 2016 | 21 Apr 2016 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jul 2015 | 23 Jul 2015 | 000-30713 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jul 2015 | 23 Jul 2015 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jul 2015 | 01 Jul 2015 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jun 2015 | 17 Jun 2015 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jun 2015 | 12 Jun 2015 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2015 | 21 May 2015 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jul 2014 | 27 Jun 2014 | 000-50865 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2014 | 01 Jul 2014 | 001-34912 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jun 2014 | 12 Jun 2014 | 001-34912 |