| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Feb 2022 | 15 Feb 2022 | 001-39320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2022 | 04 Feb 2022 | 001-39320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2021 | 15 Mar 2021 | 001-39320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2021 | 20 Feb 2021 | 001-39320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2021 | 17 Feb 2021 | 001-39320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2020 | 15 Mar 2020 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2020 | 21 Feb 2020 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2020 | 19 Feb 2020 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2019 | 22 Feb 2019 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2019 | 20 Feb 2019 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2018 | 08 Dec 2018 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2018 | 21 Feb 2018 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2017 | 08 Dec 2017 | 000-10967 |
| 4 | Open Document | Open Filing | 4 | 12 Jun 2017 | 08 Jun 2017 | 000-10967 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2017 | 22 Feb 2017 | 000-10967 |
| 4 | Open Document | Open Filing | 4 | 12 Dec 2016 | 08 Dec 2016 | 000-10967 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Nov 2016 | 07 Nov 2016 | 000-10967 |