Marc Andreessen

Marc Andreessen sold thousands of shares of Facebook as part of a predetermined trading plan, according to documents filed with the Securities and Exchange Commission.

From Oct. 30 to Nov. 6, the famed venture capitalist and Facebook director went from holding almost 1.6 million Class A shares to just more than 750,000 in his charitable and living trusts, filings show. Andreessen's sales, in the time period directly surrounding Facebook earnings, were pursuant to an SEC rule that allows insiders to sell stock at a predetermined time, the filings said.