<html>
<head>


  </head>
<body lang="EN-US">
<div>
<div style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:solid windowtext 3.0pt;padding:1.0pt 0in 1.0pt 0in;">
<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>
</div>
<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;">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.&#160; 20549</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;"><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>
<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;">CURRENT REPORT</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;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of the</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;">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):&#160; <b>April&nbsp;26, 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;"><font size="2" face="Arial"><img width="268" height="64" src="g108061bai001.jpg"></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;">SIMON PROPERTY GROUP,&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>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<div align="center">
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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;">Delaware</font></b></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<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>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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;">001-14469</font></b></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<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>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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;">046268599</font></b></p>    </td>   </tr>
<tr>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(State or other jurisdiction</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">(IRS Employer</font></p>    </td>   </tr>
<tr>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
<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>  </table>
</div>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<div align="center">
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.54%;">
<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;">225 WEST WASHINGTON STREET</font></b></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.9%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.56%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.54%;">
<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;">INDIANAPOLIS,&nbsp;INDIANA</font></b></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.9%;">
<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>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.56%;">
<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;">46204</font></b></p>    </td>   </tr>
<tr>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.54%;">
<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>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.9%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="48%" valign="top" style="padding:0in 0in 0in 0in;width:48.56%;">
<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>
</div>
<p style="margin:0in 0in .0001pt;"><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;">Registrant&#146;s telephone number, including area code:&#160; <b>317.636.1600</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="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Not Applicable</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 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;"><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;"><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;"><font size="1" face="Arial" style="font-size:6.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><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;"><font size="1" face="Arial" style="font-size:6.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><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;"><font size="1" face="Arial" style="font-size:6.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><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>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="border-bottom:solid windowtext 3.0pt;border-left:none;border-right:none;border-top:solid windowtext 1.0pt;padding:1.0pt 0in 1.0pt 0in;">
<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>
</div>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\kyangb\13-10806-1\task5996230\10806-1-ba.htm',USER='Kyangb',CD='Apr 25 15:37 2013' -->

<br clear="all" style="page-break-before:always;">
<div>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:11.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">Item 2.02.&#160;&#160;&#160; Results of Operations and Financial Condition</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;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">On April&nbsp;26, 2013, Simon Property Group,&nbsp;Inc. issued a press release containing information on earnings for the quarter ended March&nbsp;31, 2013 and other matters.&#160; A copy of the press release is furnished with this report as Exhibit&nbsp;99.1, and is incorporated by reference into this report.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><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 7.01.&#160;&#160;&#160; Regulation FD Disclosure</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;text-indent:22.5pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Exhibit&nbsp;99.1 also includes supplemental financial and operating information for the quarter ended March&nbsp;31, 2013.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:22.5pt;"><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.&#160; Financial Statements and Exhibits</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;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Financial Statements:</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:.5in;"><b><font size="2" face="Arial" style="font-size:10.0pt;font-weight:bold;">None</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;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Exhibits:</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="8%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:8.08%;">
<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>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
<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="89%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:89.84%;">
<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>
<tr>
<td width="8%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:8.08%;">
<p style="margin:0in 0in .0001pt;"><font size="1" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
<p style="margin:0in 0in .0001pt;"><font size="1" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="1" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="8%" valign="top" style="padding:0in 0in 0in 0in;width:8.08%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">99.1</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Earnings Release dated April&nbsp;26,   2013 and supplemental information</font></p>    </td>   </tr>  </table>
<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:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">The exhibit filed with this report contains measures of financial or operating performance that are not specifically defined by accounting principles generally accepted in the United States (&#147;GAAP&#148;), including funds from operations (&#147;FFO&#148;), diluted FFO per share, net operating income (&#147;NOI&#148;), and comparable property NOI.&#160; FFO and NOI are performance measures that are standard in the REIT business.&#160; We believe FFO and NOI provide investors with additional information concerning our operating performance and a basis to compare our performance with the performance of other REITs.&#160; We also use these measures internally to monitor the operating performance of our portfolio.&#160; Our computation of these non-GAAP measures may not be the same as similar measures reported by other REITs.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:24.0pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">These non-GAAP financial measures should not be considered as alternatives to net income as a measure of our operating performance or to cash flows computed in accordance with GAAP as a measure of liquidity nor are they indicative of cash flows from operating and financial activities.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:24.0pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">Reconciliations of each of these non-GAAP measures to the most-directly comparable GAAP measure are included in the exhibit.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:22.5pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:22.3pt;"><font size="2" face="Arial" style="font-size:10.0pt;">The information in this report and the exhibit filed herewith is being furnished, not filed, for purposes of Section&nbsp;18 of the Securities Exchange Act of 1934, as amended, and pursuant to Items 2.02 and 7.01 of Form&nbsp;8-K, will not be incorporated by reference into any filing under the Securities Act of 1933, as amended.</font></p>
<p style="margin:0in 0in .0001pt;"><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;">2<a name="PB_2_230622_7056"></a></font></p> </div>
<!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\kyangb\13-10806-1\task5996230\10806-1-ba.htm',USER='Kyangb',CD='Apr 25 15:37 2013' -->

<br clear="all" style="page-break-before:always;">
<div>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:11.0pt;">&nbsp;</font></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;">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:22.3pt;"><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 thereunto duly authorized.</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;">Dated: April&nbsp;26, 2013</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;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="49%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">SIMON PROPERTY GROUP,&nbsp;INC.</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="45%" valign="top" style="padding:0in 0in 0in 0in;width:45.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="45%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:45.42%;">
<p align="center" style="margin:0in 0in .0001pt 10.0pt;text-align:center;text-indent:-10.0pt;"><font size="2" face="Arial" style="font-size:10.0pt;">/s/ STEPHEN E. STERRETT</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="45%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:45.42%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">Stephen E.   Sterrett,</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="45%" valign="top" style="padding:0in 0in 0in 0in;width:45.42%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Arial" style="font-size:10.0pt;">Senior   Executive Vice President and</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.42%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Arial" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="45%" valign="top" style="padding:0in 0in 0in 0in;width:45.42%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><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="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;">3<a name="PB_3_230723_5335"></a></font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
</div>
<!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\kyangb\13-10806-1\task5996230\10806-1-ba.htm',USER='Kyangb',CD='Apr 25 15:37 2013' -->

</body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "a13-10806_18k.htm", "description": "8-K", "secsgml_size_bytes": 26193}]
{"company-data": {"conformed-name": "SIMON PROPERTY GROUP INC /DE/", "cik": "0001063761", "assigned-sic": "6798", "irs-number": "046268599", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-14469", "film-number": "13784692"}, "business-address": {"street1": "225 WEST WASHINGTON STREET", "city": "INDIANAPOLIS", "state": "IN", "zip": "46204-3438", "phone": "317-636-1600"}, "mail-address": {"street1": "225 WEST WASHINGTON STREET", "city": "INDIANAPOLIS", "state": "IN", "zip": "46204-3438"}, "former-company": {"former-conformed-name": "CORPORATE PROPERTY INVESTORS INC", "date-changed": "19980610"}}
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):
April 26, 2013
SIMON PROPERTY GROUP, INC.
(Exact name of registrant as specified in its charter)
Delaware
001-14469
046268599
(State or other jurisdiction
(Commission
(IRS Employer
of incorporation)
File Number)
Identification No.)
225 WEST WASHINGTON STREET
INDIANAPOLIS, INDIANA
46204
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code:
317.636.1600
Not Applicable
(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 2.02.    Results of Operations and Financial Condition
On April 26, 2013, Simon Property Group, Inc. issued a press release containing information on earnings for the quarter ended March 31, 2013 and other matters.  A copy of the press release is furnished with this report as Exhibit 99.1, and is incorporated by reference into this report.
Item 7.01.    Regulation FD Disclosure
Exhibit 99.1 also includes supplemental financial and operating information for the quarter ended March 31, 2013.
Item 9.01.  Financial Statements and Exhibits
Financial Statements:
None
Exhibits:
Exhibit No.
Description
99.1
Earnings Release dated April 26,   2013 and supplemental information
The exhibit filed with this report contains measures of financial or operating performance that are not specifically defined by accounting principles generally accepted in the United States ("GAAP"), including funds from operations ("FFO"), diluted FFO per share, net operating income ("NOI"), and comparable property NOI.  FFO and NOI are performance measures that are standard in the REIT business.  We believe FFO and NOI provide investors with additional information concerning our operating performance and a basis to compare our performance with the performance of other REITs.  We also use these measures internally to monitor the operating performance of our portfolio.  Our computation of these non-GAAP measures may not be the same as similar measures reported by other REITs.
These non-GAAP financial measures should not be considered as alternatives to net income as a measure of our operating performance or to cash flows computed in accordance with GAAP as a measure of liquidity nor are they indicative of cash flows from operating and financial activities.
Reconciliations of each of these non-GAAP measures to the most-directly comparable GAAP measure are included in the exhibit.
The information in this report and the exhibit filed herewith is being furnished, not filed, for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and pursuant to Items 2.02 and 7.01 of Form 8-K, will not be incorporated by reference into any filing under the Securities Act of 1933, as amended.
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 thereunto duly authorized.
Dated: April 26, 2013
SIMON PROPERTY GROUP, INC.
By:
/s/ STEPHEN E. STERRETT
Stephen E.   Sterrett,
Senior   Executive Vice President and
Chief   Financial Officer
3