Harwood Feffer LLP announces that it has commenced an investigation on behalf of purchasers of shares of common stock of TranS1, Inc. ("TranS1" or the "Company") (NASDAQ: TSON) who purchased shares pursuant to a prospectus on Form 424B5 dated September 21, 2011 (the “Prospectus”) and who currently own such shares. We are currently investigating potential material omissions and/or misrepresentations contained in the Prospectus. If you purchased TranS1 shares during the recent public offering and wish to discuss this matter with us, or have any questions concerning your rights and interests with regard to this matter, please contact: Robert I. Harwood, Esq.Peter W. Overs, Jr., Esq.Benjamin Sachs-MichaelsHarwood Feffer LLP488 Madison AvenueNew York, New York 10022Phone Numbers: (877) 935-7400(212)935-7400Email: firstname.lastname@example.orgWebsite: http://www.hfesq.com Harwood Feffer has been representing individual and institutional investors for many years, serving as lead counsel in numerous cases in federal and state courts. Please visit the Harwood Feffer LLP website ( http://www.hfesq.com) for more information about the firm. Attorney Advertising. © 2011 Harwood Feffer LLP. The law firm responsible for this advertisement is Harwood Feffer LLP ( www.hfesq.com). Prior results do not guarantee or predict a similar outcome with respect to any future matter.