A number of early investors sold some of their shares in this IPO. Of note from this SEC filing (look at the "Principal and Selling Stockholders" heading), Zuc

A number of early investors sold some of their shares in this IPO. Of note from this SEC filing (look at the "Principal and Selling Stockholders" heading), Zuckerberg himself put 30 million shares into the IPO, shares from some early angels were offered, Goldman Sachs offered half their stake, as did DST. http://investor.fb.com/secfiling.cfm?filingID=1193125-12-235588&CIK=1326801 http://investor.fb.com/secfiling.cfm?filingID=1193125-12-235...