Facebook (FB) officially sets its IPO price range at $28-$35 in a new S-1. The company plans to sell 337.4M shares (180M in new shares, 157.4M from insiders) for a total offering size of $9.45B-$11.8B, higher than many expected. Mark Zuckerberg will sell 30.2M shares. The over-allotment option is 50.6M shares. Facebook's expected valuation range is $77B-$96B after factoring in restricted shares and options. IPO plays are following the tech sector lower: GSVC -3%. SVVC -3.1%.