| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 13F-HR | Open Document | Open Filing | 31 Oct 2014 | 30 Sep 2014 | 028-01874 | |
| 13F-HR | Open Document | Open Filing | 06 Aug 2014 | 30 Jun 2014 | 028-01874 | |
| 13F-HR | Open Document | Open Filing | 05 May 2014 | 31 Mar 2014 | 028-01874 | |
| SC 13G | Open Document | Open Filing | 23 Apr 2014 | |||
| SC 13G | Open Document | Open Filing | NORTHWESTERN CORP 13G | 12 Feb 2014 | ||
| SC 13G | Open Document | Open Filing | MENTOR GRAPHICS 13G | 12 Feb 2014 | ||
| SC 13G | Open Document | Open Filing | INVESTMENT TECH GROUP 13G | 12 Feb 2014 | ||
| 13F-HR | Open Document | Open Filing | 06 Feb 2014 | 31 Dec 2013 | 028-01874 |