In a regulatory filing Tuesday, Facebook said Chief Executive Mark Zuckerberg won't sell any stock in the company for a year, and that two of its directors—Marc Andreessen and Donald Graham—have no plans to sell their personal holdings beyond the amount needed to cover their tax liabilities. Facebook also detailed how it will essentially buy back 101 million shares when it issues previously restricted stock units to its staff in October.  Article Excerpt 
 
 Facebook Inc. took steps Tuesday to reassure investors and employees worried about its plummeting stock price, as the social network's shares hit new lows.
– Mark Zuckerberg is a much poorer billionaire than he was a few months ago, but he won't be joining the early investors selling off their Facebook shares. Those shares hit a new low of $17.73 yesterday, and the company took steps to assure investors that the slide will not continue, reports the Wall Street Journal. It promised Zuckerberg would not be selling any of his shares for at least a year, and outlined plans to protect the company share price when restricted stock units held by its staff become tradable shares later this year. Facebook's shares have lost more than 50% of their value since the company's May IPO amid concerns about its moneymaking ability, and analysts say it's time for Zuckerberg to act. "Clearly, he has to do something, having spent the last few years in flip-flops and a hoodie, pontificating about how Facebook is going to change the world," a crisis management expert tells the Los Angeles Times. "I think what people are going to need now is a road map that, among other things, answers the question: What is a reasonable expectation for this company's future?"