| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 13F-HR | Open Document | Open Filing | Aug 9, 2018 | Jun 30, 2018 | 028-18414 | |
| 13F-HR/A | Open Document | Open Filing | May 15, 2018 | Mar 31, 2018 | 028-18414 | |
| 13F-HR | Open Document | Open Filing | May 11, 2018 | Mar 31, 2018 | 028-18414 | |
| 13F-HR | Open Document | Open Filing | Feb 13, 2018 | Dec 31, 2017 | 028-18414 |