Looks like a pretty useful site/report free of charge.
Registered hedge funds over $100 million are required by the Securities and Exchange Commission (SEC) to file quarterly updates on portfolio holdings. These holdings are filed online through form 13-F at sec.gov. Hedge funds are required to file these holdings no later than 45 days after the end of the calendar quarter. The Street of Walls team compiled very detailed analyses on 20 of the top Hedge Funds in the industry.
This report focuses on hedge fund positions at the start of 3Q 2011 and looks at meaningful changes from the previous quarter. The report is based on 20 of the top hedge funds.
Link to: Q2 Report