In these volatile markets we scrutinize hedge fund filings to get a reading on which direction each stock might be going. The latest 13F reporting period has come and gone, and Insider Monkey is again at the forefront when it comes to making use of this gold mine of data. We at Insider Monkey have plowed through 835 13F filings that hedge funds and well-known value investors are required to file by the SEC. The 13F filings show the funds' and investors' portfolio positions as of December 31st. In this article we look at what those investors think of Sirius XM Holdings Inc (NASDAQ: SIRI ).