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 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">8-K</FONT> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT
REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant to Section&nbsp;13 or 15(d) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of report (Date of earliest event reported): </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>November&nbsp;21, 2013 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>AMEREN
CORPORATION </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact Name of Registrant as Specified in its Charter) </B></P>
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<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>Missouri</B></TD>
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<TD VALIGN="top" ALIGN="center"><B>1-4756</B></TD>
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<TD VALIGN="top" ALIGN="center"><B>43-1723446</B></TD></TR>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(IRS Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification Number)</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>1901 Chouteau Avenue </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>St. Louis, Missouri 63103 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Address of principal executive offices and Zip Code) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code&nbsp;: (314)&nbsp;621-3222 </B></P>
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<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box below if the Form <FONT STYLE="white-space:nowrap">8-K</FONT> filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top">Soliciting material pursuant to Rule <FONT STYLE="white-space:nowrap">14a-12</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.14a-12)</FONT> </TD></TR></TABLE>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT STYLE="white-space:nowrap">14d-2(b)</FONT> under the Exchange Act (17 CFR
<FONT STYLE="white-space:nowrap">240.14d-2(b))</FONT> </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT STYLE="white-space:nowrap">13e-4(c)</FONT> under the Exchange Act (17 CFR
<FONT STYLE="white-space:nowrap">240.13e-4(c))</FONT> </TD></TR></TABLE> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>ITEM&nbsp;8.01</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Other Events. </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Reference is made to (i)&nbsp;Note 15 &#150; Commitments and
Contingencies under Part II, Item&nbsp;8. Financial Statements and Supplementary Data and to Outlook under Part II, Item&nbsp;7. Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations, each in the Annual Report on
Form 10-K for the year ended December&nbsp;31, 2012, of Ameren Corporation (&#147;<U>Ameren</U>&#148;) for a discussion of the variance granted by the Illinois Pollution Control Board (&#147;<U>IPCB</U>&#148;) to Ameren Energy Resources Company, LLC
(&#147;<U>AER</U>&#148;) in September 2012, and (ii)&nbsp;Note 2 &#150; Divestiture Transactions and Discontinued Operations under Part I, Item&nbsp;1. Financial Statements in Ameren&#146;s Quarterly Report on Form 10-Q for the quarter ended
September&nbsp;30, 2013, for a discussion of the transaction agreement between Ameren and Illinois Power Holdings, LLC (&#147;<U>IPH</U>&#148;), an indirect wholly owned subsidiary of Dynegy, Inc., for a discussion of the divestiture of
Ameren&#146;s merchant generation business to IPH. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On November&nbsp;21, 2013, the IPCB granted a variance (the &#147;<U>IPH
Variance</U>&#148;) in favor of IPH with respect to certain SO<SUB STYLE="font-size:85%; vertical-align:bottom">2</SUB> emissions compliance dates contained in the Illinois Multi-Pollutant Standard. IPH, together with AER and AmerenEnergy Medina
Valley Cogen, LLC, had jointly requested the IPH Variance in July 2013. Receipt of the IPH Variance was a condition to the consummation of Ameren&#146;s divestiture of its merchant generation business to IPH, which is expected to be completed in
December 2013. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 2 - </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SIGNATURES </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top">AMEREN CORPORATION</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">(Registrant)</TD></TR>
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<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Martin J. Lyons, Jr.</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Martin J. Lyons, Jr.</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Executive Vice President and Chief Financial Officer</TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Date: November&nbsp;21, 2013 </P>
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Form 8-K
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):
November 21, 2013
AMEREN
CORPORATION
(Exact Name of Registrant as Specified in its Charter)
Missouri
1-4756
43-1723446
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification Number)
1901 Chouteau Avenue
St. Louis, Missouri 63103
(Address of principal executive offices and Zip Code)
Registrant's telephone number, including area code : (314) 621-3222
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:
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule
14a-12
under the Exchange Act (17 CFR
240.14a-12)
¨
Pre-commencement
communications pursuant to Rule
14d-2(b)
under the Exchange Act (17 CFR
240.14d-2(b))
¨
Pre-commencement
communications pursuant to Rule
13e-4(c)
under the Exchange Act (17 CFR
240.13e-4(c))
ITEM 8.01
Other Events.
Reference is made to (i) Note 15 – Commitments and
Contingencies under Part II, Item 8. Financial Statements and Supplementary Data and to Outlook under Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations, each in the Annual Report on
Form 10-K for the year ended December 31, 2012, of Ameren Corporation ("
Ameren
") for a discussion of the variance granted by the Illinois Pollution Control Board ("
IPCB
") to Ameren Energy Resources Company, LLC
("
AER
") in September 2012, and (ii) Note 2 – Divestiture Transactions and Discontinued Operations under Part I, Item 1. Financial Statements in Ameren's Quarterly Report on Form 10-Q for the quarter ended
September 30, 2013, for a discussion of the transaction agreement between Ameren and Illinois Power Holdings, LLC ("
IPH
"), an indirect wholly owned subsidiary of Dynegy, Inc., for a discussion of the divestiture of
Ameren's merchant generation business to IPH.
On November 21, 2013, the IPCB granted a variance (the "
IPH
Variance
") in favor of IPH with respect to certain SO
2
emissions compliance dates contained in the Illinois Multi-Pollutant Standard. IPH, together with AER and AmerenEnergy Medina
Valley Cogen, LLC, had jointly requested the IPH Variance in July 2013. Receipt of the IPH Variance was a condition to the consummation of Ameren's divestiture of its merchant generation business to IPH, which is expected to be completed in
December 2013.
- 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.
AMEREN CORPORATION
(Registrant)
/s/ Martin J. Lyons, Jr.
Martin J. Lyons, Jr.
Executive Vice President and Chief Financial Officer
Date: November 21, 2013