UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
Filed by the Registrant  x
Filed by a Party other than the Registrant  o
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o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
x	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12
ROSETTA STONE INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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Dear Stockholder, NOTICE IS HEREBY GIVEN that the Annual Meeting of Stockholders of Rosetta Stone Inc. will be held at the Company’s headquarters, Rosetta Stone’s offices at 1919 North Lynn St., 7th Fl., Arlington, Virginia 22209 on May 23, 2013 at 3:30 p.m. local time, or as soon thereafter as a quorum shall be present, for the following purposes: Proposals to be considered at the Annual Meeting: (1) To elect two directors. (2) To ratify the selection of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2013. (3) To approve the material terms of the performance goals for certain awards under our 2009 Omnibus Incentive Plan, as amended, to permit us to grant awards that may qualify as performance-based compensation under Section 162(m) of the Internal Revenue Code. (4) To approve an amendment to our 2009 Omnibus Incentive Plan, as amended, to increase the number of shares available for issuance under the 2009 Omnibus Incentive Plan. (5) To conduct an advisory vote on the compensation of the named executive officers. Only stockholders of record on the books of the Company at the close of business on April 2, 2013 will be entitled to vote at the meeting. Stockholders are cordially invited to attend the meeting. Our Board of Directors recommends a vote “FOR ALL”: Item 1. Our Board of Directors recommends a vote “FOR”: Items 2, 3, 4 and 5. The Proxy Materials are available for review at: http://www.cstproxy.com/rosettastone/2013 Rosetta Stone Inc. 1919 North Lynn St., 7th Fl. Arlington, Virginia 22209 You May Vote Your ProxyWhen You View The Material On The Internet. YouWill Be Asked To Follow The Prompts To Vote Your Shares. Your electronic vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated and returned the proxy card. *Stockholders are cordially invited to attend the Annual Meeting and vote in person. Vote Your Proxy on the Internet: Go to www.cstproxyvote.com Have your notice available when you access the above website. Follow the prompts to vote your shares. COMPANY ID: PROXY NUMBER: ACCOUNT NUMBER: NOTICE OF ANNUALMEETING OF STOCKHOLDERS to be held on May 23, 2013

Important Notice Regarding the Availability Of Proxy Materials For the StockholderMeeting to Be Held On May 23, 2013 This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. If you would like to receive a paper or e-mail copy of these documents, you must request one. There is no charge for such documents to be mailed to you. Please make your request for a copy as instructed below on or before May 15, 2013 to facilitate a timely delivery. The following Proxy Materials are available to you to review at: http://www.cstproxy.com/rosettastone/2013 - the Company’s Annual Report for the year ending December 31, 2012. - the Company’s 2013 Proxy Statement (including all attachments thereto). - the Proxy Card. - any amendments to the foregoing materials that are required to be furnished to stockholders. ACCESSING YOUR PROXYMATERIALS ONLINE Have this notice available when you request a paper copy of the proxy materials or to vote your proxy electronically. You must reference your company ID, 9-digit proxy number and 10-digit account number. REQUESTING A PAPER COPY OF THE PROXYMATERIALS By telephone please call 1-888-221-0690, or By logging on to http://www.cstproxy.com/rosettastone/2013 or By email at: proxy@continentalstock.com Please include the company name and your account number in the subject line. Rosetta Stone Inc. 1919 North Lynn St., 7th Fl. Arlington, Virginia 22209