| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 11 Sep 2025 | 10 Sep 2025 | 000-27130 |
| 4 | Open Document | Open Filing | 4 | 06 Jan 2025 | 02 Jan 2025 | 000-27130 |
| 4 | Open Document | Open Filing | 4 | 12 Sep 2024 | 11 Sep 2024 | 000-27130 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jan 2024 | 02 Jan 2024 | 000-27130 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Sep 2023 | 13 Sep 2023 | 000-27130 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Sep 2022 | 09 Sep 2022 | 000-27130 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2021 | 09 Sep 2021 | 000-27130 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2020 | 09 Sep 2020 | 000-27130 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2020 | 04 Feb 2020 | 000-27130 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2020 | 31 Jan 2020 | 000-27130 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2019 | 05 Mar 2019 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Dec 2018 | 05 Dec 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Nov 2018 | 14 Nov 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Oct 2018 | 22 Oct 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2018 | 05 Sep 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2018 | 05 Jun 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2018 | 05 Mar 2018 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2018 | 12 Feb 2018 | 001-34756 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2017 | 01 Jun 2017 | 001-36067 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2017 | 13 Mar 2017 | 001-34756 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2017 | 02 Mar 2017 | 001-34756 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jun 2016 | 14 Jun 2016 | 001-36067 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Sep 2015 | 03 Sep 2015 | 001-36067 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 08 Sep 2015 | 03 Sep 2015 | 001-36067 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Aug 2015 | 18 Aug 2015 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2015 | 02 Mar 2015 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Dec 2014 | 23 Dec 2014 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2014 | 02 Sep 2014 | 001-34756 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2014 | 17 Apr 2014 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2014 | 17 Apr 2014 | 001-34756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2014 | 13 Jan 2014 | 001-34756 |