| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 27 Apr 2023 | 25 Apr 2023 | 001-35492 | |
| 4 | Open Document | Open Filing | 28 Apr 2022 | 26 Apr 2022 | 001-35492 | |
| 4 | Open Document | Open Filing | 29 Apr 2021 | 27 Apr 2021 | 001-35492 | |
| 4 | Open Document | Open Filing | 30 Apr 2020 | 28 Apr 2020 | 001-35492 | |
| 4 | Open Document | Open Filing | 30 Apr 2019 | 26 Apr 2019 | 001-35492 | |
| 4 | Open Document | Open Filing | 26 Apr 2018 | 24 Apr 2018 | 001-35492 | |
| 4 | Open Document | Open Filing | 25 Jan 2018 | 23 Jan 2018 | 001-35492 | |
| 4 | Open Document | Open Filing | 27 Apr 2017 | 25 Apr 2017 | 001-35492 | |
| 4 | Open Document | Open Filing | 28 Apr 2016 | 26 Apr 2016 | 001-35492 | |
| 4 | Open Document | Open Filing | 30 Apr 2015 | 28 Apr 2015 | 001-35492 | |
| 4 | Open Document | Open Filing | 30 Apr 2014 | 29 Apr 2014 | 001-35492 |