| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 13F-NT | Open Document | Open Filing | 14 May 2019 | 31 Mar 2019 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Feb 2019 | 31 Dec 2018 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Nov 2018 | 30 Sep 2018 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Aug 2018 | 30 Jun 2018 | 028-13996 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jun 2018 | 01 Jun 2018 | 000-31380 |
| 13F-NT | Open Document | Open Filing | 15 May 2018 | 31 Mar 2018 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Feb 2018 | 31 Dec 2017 | 028-13996 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Dec 2017 | 14 Dec 2017 | 000-31380 |
| 13F-NT | Open Document | Open Filing | 14 Nov 2017 | 30 Sep 2017 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Aug 2017 | 30 Jun 2017 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 15 May 2017 | 31 Mar 2017 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Feb 2017 | 31 Dec 2016 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 15 Nov 2016 | 30 Sep 2016 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 15 Aug 2016 | 30 Jun 2016 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 16 May 2016 | 31 Mar 2016 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 16 Feb 2016 | 31 Dec 2015 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 16 Nov 2015 | 30 Sep 2015 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Aug 2015 | 30 Jun 2015 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 15 May 2015 | 31 Mar 2015 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 17 Feb 2015 | 31 Dec 2014 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Nov 2014 | 30 Sep 2014 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Aug 2014 | 30 Jun 2014 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 15 May 2014 | 31 Mar 2014 | 028-13996 | |
| 13F-NT | Open Document | Open Filing | 14 Feb 2014 | 31 Dec 2013 | 028-13996 |