Shareholder Vote

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): April 27, 2017 Commission File Number Exact Name of Registrant as Specified in Charter; State of Incorporation; Address and Telephone Number IRS Employer Identification Number 1-14756 Ameren Corporation (Missouri corporation) 1901 Chouteau Avenue St. Louis, Missouri 63103 (314) 621-3222 43-1723446 1-2967 Union Electric Company (Missouri corporation) 1901 Chouteau Avenue St. Louis, Missouri 63103 (314) 621-3222 43-0559760 1-3672 Ameren Illinois Company (Illinois corporation) 6 Executive Drive Collinsville, IL 62234 (618) 343-8150 37-0211380 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)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company Ameren Corporation ☐ Union Electric Company ☐ Ameren Illinois Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Ameren Corporation ☐ Union Electric Company ☐ Ameren Illinois Company ☐ ITEM 5.07 Submission of Matters to a Vote of Security Holders. At the annual meeting of shareholders of each of Ameren Corporation (“Ameren”), Union Electric Company, doing business as Ameren Missouri (“Ameren Missouri”), and Ameren Illinois Company, doing business as Ameren Illinois (“Ameren Illinois”), held on April 27, 2017 (“Annual Meeting”), the matters listed below were submitted to a vote of each company’s respective shareholders. Ameren Item (1): Election of Directors At Ameren’s Annual Meeting, the following individuals (comprising Ameren’s full Board of Directors) were elected: Name Votes For Votes Against Abstentions Broker Non-Votes Warner L. Baxter 162,789,447 3,923,572 829,562 31,373,901 Catherine S. Brune 166,195,577 809,349 537,655 31,373,901 J. Edward Coleman 166,128,652 842,106 571,823 31,373,901 Ellen M. Fitzsimmons 165,955,336 1,027,446 559,799 31,373,901 Rafael Flores 166,174,459 807,778 560,344 31,373,901 Walter J. Galvin 164,378,630 2,576,956 586,995 31,373,901 Richard J. Harshman 165,607,321 1,345,195 590,065 31,373,901 Gayle P. W. Jackson 164,290,023 2,677,933 574,625 31,373,901 James C. Johnson 163,904,291 3,045,871 592,419 31,373,901 Steven H. Lipstein 165,934,447 1,022,095 586,039 31,373,901 Stephen R. Wilson 165,813,469 1,147,418 581,694 31,373,901 Item (2): Non-Binding Advisory Approval of Executive Compensation Vote Result Votes For Votes Against Abstentions Broker Non-Votes Approved 159,549,507 6,880,356 1,112,718 31,373,901 Item (3): Non-Binding Advisory Approval on Frequency of Executive Compensation Shareholder Advisory Vote Vote Result One Year Two Years Three Years Abstentions Broker Non-Votes One Year 150,148,715 754,386 15,856,326 783,154 31,373,901 Based on these results, the Board of Directors has determined that Ameren will hold a non-binding advisory vote on the compensation of the Company’s named executive officers, as set forth in the Company’s proxy statement, every year. 1 Item (4): Ratification of the Appointment of PricewaterhouseCoopers LLP as Independent Registered Public Accounting Firm for the Fiscal Year Ending December 31, 2017 Vote Result Votes For Votes Against Abstentions Broker Non-Votes Approved 193,882,980 4,443,908 589,594 — Item (5): Shareholder Proposal Regarding a Report on Aggressive Renewable Energy Adoption Vote Result Votes For Votes Against Abstentions Broker Non-Votes Not Approved 14,650,298 145,519,687 7,372,596 31,373,901 Item (6): Shareholder Proposal Regarding a Report on the Impact on the Company’s Generation Portfolio of Public Policies and Technological Advances that are Consistent with Limiting Global Warming Vote Result Votes For Votes Against Abstentions Broker Non-Votes Not Approved 73,255,341 80,861,487 13,425,753 31,373,901 Item (7): Shareholder Proposal Regarding a Report on Coal Combustion Residuals Vote Result Votes For Votes Against Abstentions Broker Non-Votes Not Approved 70,661,719 81,482,936 15,397,926 31,373,901 Ameren Missouri Item (1): Election of Directors At Ameren Missouri’s Annual Meeting, the following individuals (comprising Ameren Missouri’s full Board of Directors) were elected: Mark C. Birk, Fadi M. Diya, Martin J. Lyons, Jr., Michael L. Moehn, Gregory L. Nelson, and David N. Wakeman. Each individual received 102,123,834 votes for election and no withheld votes or broker non-votes. Ameren Illinois Item (1): Election of Directors At Ameren Illinois’ Annual Meeting, the following individuals (comprising Ameren Illinois’ full Board of Directors) were elected: Martin J. Lyons, Jr., Richard J. Mark, Craig D. Nelson, Gregory L. Nelson, and David N. Wakeman. Each individual received 25,452,373 votes for election and no withheld votes or broker non-votes. This combined Form 8-K is being filed separately by Ameren Corporation, Union Electric Company and Ameren Illinois Company (each a “registrant”). Information contained herein relating to any individual registrant has been filed by such registrant on its own behalf. No registrant makes any representation as to information relating to any other registrant. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature for each undersigned company shall be deemed to relate only to matters having reference to such company or its subsidiaries. AMEREN CORPORATION (Registrant) By: /s/ Gregory L. Nelson Name: Gregory L. Nelson Title: Senior Vice President, General Counsel and Secretary UNION ELECTRIC COMPANY (Registrant) By: /s/ Gregory L. Nelson Name: Gregory L. Nelson Title: Senior Vice President, General Counsel and Secretary AMEREN ILLINOIS COMPANY (Registrant) By: /s/ Gregory L. Nelson Name: Gregory L. Nelson Title: Senior Vice President, General Counsel and Secretary Date: May 1, 2017