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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Arial" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Arial" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Washington, D.C.&nbsp; 20549</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Arial" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Arial" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Arial" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Arial" style="font-size:12.0pt;font-weight:bold;">the Securities Exchange Act of 1934</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">Date of Report (Date of earliest event reported):&nbsp; <b>May&nbsp;14, 2013</b></font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Arial" style="font-size:18.0pt;font-weight:bold;">MORNINGSTAR,&nbsp;INC.</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Exact name of registrant as specified in its charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Illinois</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">000-51280</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">36-3297908</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(State or other</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Commission</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(I.R.S. Employer</font></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">jurisdiction</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">File Number)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">Identification No.)</font></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">of incorporation)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">22 West Washington Street</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Chicago,&nbsp;Illinois</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Arial" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">60602</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Address of principal executive offices)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Zip Code)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">(312) 696-6000</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Registrant&#146;s telephone number, including area code)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">N/A</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(Former name or former address, if changed since last report)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" face="Arial" style="font-size:10.0pt;">&#160;&#160; Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" face="Arial" style="font-size:10.0pt;">&#160;&#160; Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" face="Arial" style="font-size:10.0pt;">&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" face="Arial" style="font-size:10.0pt;">&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Item 7.01.&nbsp; Regulation FD Disclosure.</font></b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">On May&nbsp;14, 2013, members of management of Morningstar,&nbsp;Inc. (the Company) will make the presentation attached as Exhibit&nbsp;99.1 at its annual shareholders&#146; meeting, which will be held at the Company&#146;s corporate headquarters in Chicago,&nbsp;Illinois at 9:00&nbsp;a.m. CST.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Non-GAAP Financial Measures</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">The presentation includes the following measures considered as non-GAAP by the Securities and Exchange Commission: free cash flow and consolidated revenue excluding acquisitions, divestitures, and foreign currency translations (organic revenue).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">The Company presents these measures as supplemental information to help investors better understand trends in its business results over time. The Company&#146;s management team uses free cash flow to evaluate the performance of its business. Free cash flow is not equivalent to any measure of performance required to be reported under U.S. generally accepted accounting principles, nor should this data be considered an indicator of the Company&#146;s overall financial performance or liquidity. Moreover, the free cash flow definition the Company uses may not be comparable to similarly titled measures reported by other companies.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Item 9.01.&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits.</font></b></p>
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<p style="margin:0in 0in .0001pt .5in;"><font size="2" face="Arial" style="font-size:10.0pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160; Exhibits:</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Arial" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Arial" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">99.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Annual   Meeting Presentation.</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">2<a name="PB_2_183558_7056"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Arial" style="font-size:10.0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">MORNINGSTAR,&nbsp;INC.</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Date:   May&nbsp;14, 2013</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="42%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:42.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">/s/   Scott Cooley</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Name:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Scott   Cooley</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Title:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Chief   Financial Officer</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_183709_5335"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">EXHIBIT&nbsp;INDEX</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Arial" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Arial" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="87%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:87.78%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Arial" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="87%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:87.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">99.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Annual   Meeting Presentation.</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">4<a name="PB_4_183758_5796"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
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{"company-data": {"conformed-name": "Morningstar, Inc.", "cik": "0001289419", "assigned-sic": "6282", "irs-number": "363297908", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-51280", "film-number": "13839649"}, "business-address": {"street1": "22 WEST WASHINGTON STREET", "city": "CHICAGO", "state": "IL", "zip": "60602", "phone": "(312) 696-6000"}, "mail-address": {"street1": "22 WEST WASHINGTON STREET", "city": "CHICAGO", "state": "IL", "zip": "60602"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
May 14, 2013
MORNINGSTAR, INC.
(Exact name of registrant as specified in its charter)
Illinois
000-51280
36-3297908
(State or other
(Commission
(I.R.S. Employer
jurisdiction
File Number)
Identification No.)
of incorporation)
22 West Washington Street
Chicago, Illinois
60602
(Address of principal executive offices)
(Zip Code)
(312) 696-6000
(Registrant's telephone number, including area code)
N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 7.01.  Regulation FD Disclosure.
On May 14, 2013, members of management of Morningstar, Inc. (the Company) will make the presentation attached as Exhibit 99.1 at its annual shareholders' meeting, which will be held at the Company's corporate headquarters in Chicago, Illinois at 9:00 a.m. CST.
Non-GAAP Financial Measures
The presentation includes the following measures considered as non-GAAP by the Securities and Exchange Commission: free cash flow and consolidated revenue excluding acquisitions, divestitures, and foreign currency translations (organic revenue).
The Company presents these measures as supplemental information to help investors better understand trends in its business results over time. The Company's management team uses free cash flow to evaluate the performance of its business. Free cash flow is not equivalent to any measure of performance required to be reported under U.S. generally accepted accounting principles, nor should this data be considered an indicator of the Company's overall financial performance or liquidity. Moreover, the free cash flow definition the Company uses may not be comparable to similarly titled measures reported by other companies.
Item 9.01.    Financial Statements and Exhibits.
(d)        Exhibits:
Exhibit No.
Description
99.1
Annual   Meeting Presentation.
2
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
MORNINGSTAR, INC.
Date:   May 14, 2013
By:
/s/   Scott Cooley
Name:
Scott   Cooley
Title:
Chief   Financial Officer
3
EXHIBIT INDEX
Exhibit No.
Description
99.1
Annual   Meeting Presentation.
4