From Oct. 30 to Nov. 6, his holdings went from 1.6 million Class A shares in the social media giant to just more than 750,000, SEC filings show.
VCs are chasing this $7 trillion byzantine market by backing start-ups that offer everything from debit cards for seniors to wearables.
Silicon Valley's top disruptors
NBA Finals MVP Andre Iguodala of the Golden State Warriors tells CNBC he's taking advantage of his proximity to Silicon Valley to capitalize off the court.
Shareholder Julie Goodridge says Facebook's shareholder voting structure makes it look like FB went public so its insiders could get rich.
Bruce Upbin, Forbes technology editor, reveals the names of top tech investors with the Midas touch.
Bitcoin has had a rough couple days, but Silicon Valley venture capitalist Marc Andreessen said in a series of tweets he is not worried.
Peter Thiel says he and Marc Andreessen may not agree on terminology, but they have similar thoughts about Carl Icahn's activism.
CNBC asks activist investor Carl Icahn addresses all manner of topics with CNBC's Scott Wapner during today's Fast Money Halftime Report. Apple, Andreessen, and the market correction are all fair game for the outspoken billionaire.
Marc Andreessen criticizes billionaire investor Carl Icahn, likening him to an "evil Capitan Kirk."
More Silicon Valley companies will likely split in the next five years, Marc Andreessen says.
Marc Andreessen of Andreessen Horowitz looks at the valuation of tech companies and how they contribute to possible company splits.
Is activism good for business? Marc Andreessen of Andreessen Horowitz, offers his opinion.
After all, the burn rate for Silicon Valley companies is not one size fits all, says venture capitalist Tim Draper.
General partner, Andreessen Horowitz
Companies like Google, Facebook and Cisco Systems are employing unorthodox new criteria to size up their deal targets.
Wall St. and venture capitalists see bitcoin as the beginning of an investing and trading revolution. Next: colored coins to execute trades.
Legendary venture capitalist Marc Andreessen shares the top three trends that he's most excited about in tech.
Tech venture capitalist Marc Andreessen criticizes the Obama administration.
Bitcoin believer and Silicon Valley pioneer Marc Andreessen explains why he's betting on the cryptocurrency.