| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 24 Jul 2025 | 23 Jul 2025 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 06 Mar 2025 | 04 Mar 2025 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 04 Mar 2025 | 28 Feb 2025 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 25 Feb 2025 | 23 Feb 2025 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 22 Jan 2025 | 19 Jan 2025 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 23 Apr 2024 | 21 Apr 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 08 Mar 2024 | 06 Mar 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 01 Mar 2024 | 28 Feb 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 27 Feb 2024 | 23 Feb 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 4 | 23 Jan 2024 | 19 Jan 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 25 Apr 2023 | 21 Apr 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 28 Feb 2023 | 26 Feb 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 27 Feb 2023 | 23 Feb 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 23 Jan 2023 | 19 Jan 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 20 Dec 2022 | 16 Dec 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 25 Apr 2022 | 21 Apr 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 01 Mar 2022 | 26 Feb 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 25 Feb 2022 | 23 Feb 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 26 Jan 2022 | 24 Jan 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 17 Dec 2021 | 16 Dec 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 23 Apr 2021 | 21 Apr 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 02 Mar 2021 | 26 Feb 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 22 Jan 2021 | 20 Jan 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 21 Jan 2021 | 18 Jan 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 18 Dec 2020 | 16 Dec 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 28 Feb 2020 | 26 Feb 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 23 Jan 2020 | 21 Jan 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 22 Jan 2020 | 17 Jan 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 18 Dec 2019 | 16 Dec 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 28 Feb 2019 | 26 Feb 2019 | 000-06253 | |
| 4/A | Open Document | Open Filing | 20 Feb 2019 | 18 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 23 Jan 2019 | 18 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 18 Jan 2019 | 17 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 17 Jan 2019 | 16 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 30 Oct 2018 | 28 Oct 2018 | 000-06253 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jan 2018 | 19 Jan 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jan 2018 | 18 Jan 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2018 | 17 Jan 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jan 2018 | 29 Dec 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Oct 2017 | 30 Oct 2017 | 000-06253 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Mar 2017 | 19 Jan 2017 | 000-06253 |
| 3/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Mar 2017 | 03 Jan 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Jan 2017 | 19 Jan 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2017 | 17 Jan 2017 | 000-06253 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Jan 2017 | 03 Jan 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Jan 2016 | 19 Jan 2016 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Nov 2015 | 28 Oct 2015 | 000-06253 |
| 4 | Open Document | Open Filing | 25 Sep 2015 | 15 Sep 2015 | 000-06253 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Sep 2015 | 15 Sep 2015 | 000-06253 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2015 | 23 May 2015 | 000-13163 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2015 | 16 Nov 2012 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2015 | 20 May 2015 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2015 | 20 May 2015 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2015 | 16 May 2015 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2015 | 24 Apr 2015 | 000-13163 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Apr 2015 | 31 Mar 2015 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2014 | 23 May 2014 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2014 | 20 May 2014 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2014 | 18 May 2014 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2014 | 16 May 2014 | 000-13163 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2014 | 25 Apr 2014 | 000-13163 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2014 | 31 Mar 2014 | 000-13163 |