Facebook's initial public offering last week is now largely considered a dud, the victim of technical problems from Nasdaq and investor overhype. One person who has made out very well financially from the the social network's stock market debut is its founder and CEO Mark Zuckerberg. The hoodie aficionado netted over $1 billion after cashing in 30.2 million shares, according to a public filing. The stock sold for $37.58 a share, slightly less than Facebook's $38 IPO price. Still it is better than the $34 the Menlo Park, Calif. based company's shares were trading for as markets closed on Wednesday. A spokeswoman for Facebook declined to comment. Zuckerberg, who wed his longtime girlfriend Priscilla Chan last weekend, won't use the money to pay the caterer. The Facebook chief will use the bulk of the proceeds to pay sale taxes stemming from the IPO and the exercise of his stock options, according to filings.