Hedge fund D. E. Shaw trimmed its position in Nvidia and scooped up 3.7 million shares of Broadcom.Every quarter, hedge funds and portfolio management firms with more than $100 million invested in the market are required to file a form 13F with the Securities and Exchange Commission. Analyzing these filings can be a helpful tool when trying to identify trends among "smart money" investors.One theme that I'm starting to notice is that some of Wall Street's highest profile billionaires are selling Nvidia (NVD ...