| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 16, 2023 | May 12, 2023 | 001-35249 | |
| 4 | Open Document | Open Filing | May 17, 2022 | May 13, 2022 | 001-35249 | |
| 4 | Open Document | Open Filing | May 18, 2021 | May 14, 2021 | 001-35249 | |
| 4 | Open Document | Open Filing | May 18, 2020 | May 15, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | May 21, 2019 | May 17, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 21, 2018 | May 18, 2018 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 31, 2017 | May 19, 2017 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2016 | May 13, 2016 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2015 | May 15, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 20, 2014 | May 16, 2014 | 001-35249 |