Signatures Morningstar, Inc. 2010 Annual Report 143 Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf  of the registrant and in the capacities and on the dates indicated. Signature  Title  Date /s/ Joe Mansueto  Chairman of the Board and Chief Executive  February 28, 2011  Joe Mansueto  Officer (principal executive officer) /s/ Scott Cooley  Chief Financial Officer (principal  February 28, 2011  Scott Cooley  accounting and financial officer) /s/ Donald J. Phillips II  Director  February 28, 2011  Donald J. Phillips II /s/ Cheryl Francis  Director  February 28, 2011  Cheryl Francis /s/ Steven Kaplan  Director  February 28, 2011  Steven Kaplan /s/ Bill Lyons  Director  February 28, 2011  Bill Lyons Director  Jack Noonan /s/ Paul Sturm  Director  February 28, 2011  Paul Sturm /s/ Hugh Zentmyer  Director  February 28, 2011  Hugh Zentmyer Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to  be signed on its behalf by the undersigned, thereunto duly authorized on February 28, 2011. Morningstar, Inc. By: /s/ Joe Mansueto Name: Joe Mansueto Title: Chairman of the Board and Chief Executive Officer