| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 21, 2022 | Jun 15, 2022 | 001-36027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 15, 2022 | Jun 14, 2022 | 001-36027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 14, 2022 | Jun 13, 2022 | 001-36027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 10, 2022 | Jun 1, 2022 | 001-36027 |
| 3/A | Open Document | Open Filing | FORM 3/A | Sep 10, 2020 | Apr 1, 2020 | 001-36027 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2020 | Jun 1, 2020 | 001-36027 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 16, 2020 | Apr 1, 2020 | 001-36027 |
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2016 | May 10, 2016 | 001-34811 |