| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Oct 2021 | 26 Oct 2021 | 001-40957 |
| 4 | Open Document | Open Filing | 4 | 13 Jun 2018 | 12 Jun 2018 | 001-34228 |
| 4 | Open Document | Open Filing | 4 | 12 Jun 2018 | 12 Jun 2018 | 001-34228 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2017 | 16 May 2017 | 001-34228 |
| 4 | Open Document | Open Filing | 4 | 13 Sep 2016 | 09 Sep 2016 | 001-34228 |
| 3 | Open Document | Open Filing | 3 | 24 Jun 2015 | 24 Jun 2015 | 001-34228 |