| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 May 2025 | 19 May 2025 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Feb 2025 | 05 Feb 2025 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Jun 2024 | 17 Jun 2024 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Mar 2024 | 14 Mar 2024 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Dec 2023 | 21 Dec 2023 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 May 2023 | 22 May 2023 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Apr 2022 | 25 Apr 2022 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Apr 2022 | 13 Apr 2022 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jun 2021 | 07 Jun 2021 | 001-37544 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2021 | 14 May 2021 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Dec 2020 | 08 Dec 2020 | 001-37544 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2020 | 24 Apr 2020 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Feb 2020 | 12 Feb 2020 | 001-37544 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Feb 2020 | 12 Feb 2020 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jan 2020 | 06 Jan 2020 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Jun 2019 | 30 May 2019 | 000-31191 |
| 4 | Open Document | Open Filing | 4 | 24 May 2019 | 24 Apr 2019 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2018 | 31 May 2018 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | 26 Apr 2018 | 24 Apr 2018 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 - | 26 Feb 2018 | 22 Feb 2018 | 000-31191 |
| 3 | Open Document | Open Filing | FORM 3 - | 26 Feb 2018 | 22 Feb 2018 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Feb 2018 | 12 Feb 2018 | 000-30319 |
| 3 | Open Document | Open Filing | FORM 3 - | 14 Feb 2018 | 12 Feb 2018 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Feb 2017 | 13 Feb 2017 | 001-36172 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Feb 2017 | 31 Jan 2017 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2016 | 01 Feb 2016 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2015 | 31 Jan 2015 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2015 | 13 Jan 2015 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2014 | 16 Dec 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2014 | 11 Nov 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Oct 2014 | 14 Oct 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2014 | 12 Aug 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2014 | 31 Jan 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2013 | 15 Jul 2013 | 000-21696 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2013 | 15 Jul 2013 | 000-21696 |