Global Note



 EXHIBIT 4.2 

 

			
	REGISTERED	  	REGISTERED        

 THIS NOTE IS A GLOBAL NOTE REGISTERED IN THE NAME OF THE DEPOSITARY (REFERRED TO HEREIN) OR A NOMINEE
THEREOF AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE FOR THE INDIVIDUAL NOTES REPRESENTED HEREBY AS PROVIDED IN THE INDENTURE REFERRED TO BELOW, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE
DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS NOTE IS PRESENTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK), TO THE TRUSTEE FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH
OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE
REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
 UNION ELECTRIC COMPANY 

3.90% SENIOR SECURED NOTE DUE 2042 
  

			
	CUSIP: 906548CJ9	  	NUMBER: 1
	ISIN: US906548CJ95	  	
		
	ORIGINAL ISSUE DATE: September 11, 2012	  	PRINCIPAL AMOUNT: $485,000,000
		
	INTEREST RATE: 3.90%	  	MATURITY DATE: September 15, 2042

 UNION ELECTRIC COMPANY, a corporation of the State of Missouri (the “COMPANY”), for value
received hereby promises to pay to CEDE & CO. or registered assigns, the principal sum of FOUR HUNDRED EIGHTY-FIVE MILLION DOLLARS ($485,000,000) on the Maturity Date set forth above, and to pay interest thereon from and including the
Original Issue Date specified above or from and including the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually in arrears on March 15 and September 15 in each year, commencing
March 15, 2013, and on the Maturity Date, at the per annum Interest Rate set forth above until the principal hereof is paid or made available for payment. No interest shall accrue on the Maturity Date, so long as the principal amount of
this Note is paid on the Maturity Date. The interest so payable and punctually paid or duly provided for on any such Interest Payment Date (except for interest payable on the Maturity Date set forth above or, if applicable, upon redemption or
acceleration), will, as provided in the Indenture (as defined below), be paid to the Person in whose name this Note is registered at the close of business on the Regular Record Date for such interest, which shall be the March 1 or
September 1 as the case may be, next preceding such Interest Payment Date; provided, that the 







 
first Interest Payment Date for any part of this Note, the Original Issue Date of which is after a Regular Record Date but prior to the applicable Interest Payment Date, shall be the Interest
Payment Date following the next succeeding Regular Record Date; and provided, that interest payable on the Maturity Date set forth above or, if applicable, upon redemption or acceleration, shall be payable to the Person to whom principal shall be
payable. Except as otherwise provided in the Indenture, any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and shall be paid to the Person in whose name
this Note is registered at the close of business on a Special Record Date for the payment of such defaulted interest to be fixed by the Trustee, notice whereof shall be given to Noteholders not more than fifteen days nor fewer than ten days prior to
such Special Record Date. Payment of the principal of and interest and premium on this Note shall be payable pursuant to Section 2.12(a) of the Indenture. 
 This Note is a Global Note in respect of a duly authorized issue of 3.90% Senior Secured Notes due 2042 (the “NOTES OF THIS SERIES”, which term includes any Global Notes representing such Notes)
of the Company issued and to be issued under an Indenture dated as of August 15, 2002, between the Company and The Bank of New York Mellon, as trustee (herein called the “TRUSTEE”, which term includes any successor Trustee under the
Indenture) and indentures supplemental thereto (collectively, the “INDENTURE”). Under the Indenture, one or more series of notes may be issued and, as used herein, the term “Notes” refers to the Notes of this Series and any
other outstanding series of Notes. Reference is hereby made to the Indenture for a more complete statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Noteholders and of
the terms upon which the Notes are and are to be authenticated and delivered. This Note has been issued in respect of the series designated on the first page hereof, issued in the initial aggregate principal amount of $485,000,000.

 The Notes will be secured by first mortgage bonds (the “SENIOR NOTE FIRST MORTGAGE BONDS”) delivered by the Company
to the Trustee for the benefit of the Holders of the Notes, issued under the Indenture of Mortgage and Deed of Trust, dated June 15, 1937, from the Company to The Bank of New York Mellon, as successor trustee (the “MORTGAGE TRUSTEE”),
as supplemented and modified (collectively, the “FIRST MORTGAGE”). Reference is made to the First Mortgage and the Indenture for a description of the rights of the Trustee as holder of the Senior Note First Mortgage Bonds, the
property mortgaged and pledged, the nature and extent of the security and the rights of the holders of first mortgage bonds, under the First Mortgage and the rights of the Company and of the Mortgage Trustee in respect thereof, the duties and
immunities of the Mortgage Trustee and the terms and conditions upon which the Senior Note First Mortgage Bonds are secured and the circumstances under which additional first mortgage bonds may be issued. By its acquisition of an interest in this
Note, each Holder of this Note irrevocably (a) consents to each of the amendments to the First Mortgage described in Article III of the Supplemental Indenture dated May 15, 2012 to the First Mortgage without any other or further action by
any Holder of such Notes, and (b) designates the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of such amendments at any Noteholder meeting or
meeting of bondholders, in lieu of any Noteholder meeting or meeting of bondholders, in response to any consent solicitation or otherwise. 

  
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 So long as any of the Notes of this Series are outstanding, the Company will not permit
a Release Date to occur. 
 Each Note of this Series shall be dated and issued as of the date of its authentication by the
Trustee and shall bear an Original Issue Date. Each Note of this Series issued upon transfer, exchange or substitution of such Note shall bear the Original Issue Date of such transferred, exchanged or substituted Note, as the case may be.

 Interest on this Note will accrue from and including the Original Issue Date specified above to, but excluding March 15,
2013, and thereafter, from and including each Interest Payment Date to, but excluding, the next succeeding Interest Payment Date, the Maturity Date or any redemption date, as the case may be. 

All or a portion of the Notes of this Series may be redeemed at the option of the Company at any time or from time to time. The
redemption price for the Notes of this Series to be redeemed on any redemption date prior to March 15, 2042 (six months prior to the Maturity Date) will be equal to the greater of the following amounts: (a) 100% of the principal
amount of the Notes of this Series being redeemed on the redemption date; or (b) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes of this Series being redeemed on that redemption
date (not including any portion of any payments of interest accrued to the redemption date) discounted to the redemption date on a semiannual basis at the Adjusted Treasury Rate (as defined below) plus 20 basis points, as determined by a Reference
Treasury Dealer (as defined below) appointed by the Company for such purpose, plus, in each case, accrued and unpaid interest thereon to the redemption date. The redemption price for the Notes of this Series to be redeemed on any redemption date on
or after March 15, 2042 will be equal to 100% of the principal amount of the Notes of this Series being redeemed on the redemption date plus accrued and unpaid interest thereon to the redemption date. Notwithstanding the foregoing, installments
of interest on Notes of this Series that are due and payable on Interest Payment Dates falling on or prior to a redemption date will be payable on the Interest Payment Date to the Holder of this Note as of the close of business on the relevant
Regular Record Date. The redemption price will be calculated on the basis of a 360-day year consisting of twelve 30-day months. 
 The Company shall mail notice of any redemption at least 30 days but not more than 60 days before the redemption date to each Holder of the Notes of this Series to be redeemed. Unless the
Company defaults in payment of the redemption price, on and after the redemption date, interest will cease to accrue on the Notes of this Series or portions thereof called for redemption. 

Any notice of redemption at the Company’s option may state that such redemption will be conditional upon receipt by the Trustee, on
or prior to the redemption date, of money sufficient to pay the principal of and premium, if any, and interest on, the Notes of this Series or portions thereof called for redemption, and that if such money has not been so received, such notice will
be of no force and effect and the Company will not be required to redeem such Notes or portions thereof. 

  
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 “ADJUSTED TREASURY RATE” means, with respect to any redemption date, the rate per
annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such
redemption date. 
 “COMPARABLE TREASURY ISSUE” means the United States Treasury security selected by the Reference
Treasury Dealer as having a maturity comparable to the remaining term of the Notes of this Series to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of
corporate debt securities of comparable maturity to the remaining term of such Notes of this Series. 
 “COMPARABLE
TREASURY PRICE” means, with respect to any redemption date, (A) the average of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or
(B) if the Trustee obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations, or (C) if only one Reference Treasury Dealer Quotation is received, such quotation. 

“REFERENCE TREASURY DEALER” means (A) Barclays Capital Inc., BNP Paribas Securities Corp., Merrill Lynch, Pierce,
Fenner & Smith Incorporated or their respective affiliates or a dealer selected by Mitsubishi UFJ Securities (USA), Inc., which, in each case, is a primary U.S. Government securities dealer in the United States (each, a “Primary
Treasury Dealer”), and their respective successors; provided, however, that if any of the foregoing shall cease to be a Primary Treasury Dealer, the Company shall substitute therefor another Primary Treasury Dealer; and (B) any other
Primary Treasury Dealer(s) selected by the Company. 
 “REFERENCE TREASURY DEALER QUOTATIONS” means, with respect
to each Reference Treasury Dealer and any redemption date, the average, as determined by the Company, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to
the Company by such Reference Treasury Dealer at 5:00 p.m. (New York City time) on the third Business Day preceding such redemption date. 
 Interest payments for this Note shall be computed and paid on the basis of a 360-day year consisting of twelve 30-day months (and for any partial periods shall be calculated on the basis of the number of
days elapsed in a 360-day year of twelve 30 day months). If any Interest Payment Date falls on a day that is not a Business Day, the Interest Payment Date will be the next succeeding Business Day (and without any interest or other payment in
respect of any such delay). If the Maturity Date of this Note or any redemption date falls on a day that is not a Business Day, the payment of principal, premium, if any, and interest will be made on the next succeeding Business Day with the same
force and effect as if made on such Maturity Date or redemption date, and no interest on such payment shall accrue for the period from and after the Maturity Date or such redemption date. 

The Company, at its option, and subject to the terms and conditions provided in the Indenture, will be discharged from any and all
obligations in respect of the Notes of this Series (except for certain obligations including obligations to register the transfer or exchange of Notes 

  
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of this Series, replace stolen, lost or mutilated Notes of this Series, maintain paying agencies and hold monies for payment in trust, all as set forth in the Indenture) if the Company deposits
with the Trustee money, U.S. Government Obligations which through the payment of interest thereon and principal thereof in accordance with their terms will provide money, or a combination of money and U.S. Government Obligations, in any event in an
amount sufficient, without reinvestment, to pay all the principal of and any premium and interest on the Notes of this Series on the dates such payments are due in accordance with the terms of the Notes of this Series. 

If an Event of Default shall occur and be continuing with respect to the Notes, the principal of and interest on the Notes may be
declared due and payable in the manner and with the effect provided in the Indenture and, upon such declaration, the Trustee shall demand the redemption of the Senior Note First Mortgage Bonds to the extent provided in the Indenture. 

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modifications of the rights and
obligations of the Company and the rights of the Noteholders under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in aggregate principal amount of the outstanding Notes. Any such consent or
waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange therefor or in lieu thereof whether or not
notation of such consent or waiver is made upon this Note. 
 As set forth in and subject to the provisions of the Indenture, no
Holder of any Notes will have any right to institute any proceeding with respect to the Indenture or for any remedy thereunder unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect
to such Notes, the Holders of a majority in aggregate principal amount of the outstanding Notes affected by such Event of Default shall have made written request and offered reasonable indemnity to the Trustee to institute such proceeding as Trustee
and the Trustee shall have failed to institute such proceeding within 60 days; provided, however, that such limitations do not apply to a suit instituted by the Holder hereof for the enforcement of payment of the principal of and any premium or
interest on this Note on or after the respective due dates expressed herein. 
 No reference herein to the Indenture and to
provisions of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Note at the times, places and rates and the coin or
currency prescribed in the Indenture. 
 As provided in the Indenture and subject to certain limitations therein set forth, this
Note may be transferred only as permitted by the legend hereto and the provisions of the Indenture. 
 The Indenture and the
Notes shall be governed by, and construed in accordance with, the laws of the State of New York without regard to conflicts of law principles thereof. 
 Unless the certificate of authentication hereon has been executed by the Trustee, directly or through an Authenticating Agent by manual signature of an authorized officer, this Note shall not be entitled
to any benefit under the Indenture or be valid or obligatory for any purpose. 

  
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 All terms used in this Note that are defined in the Indenture shall have the meanings
assigned to them in the Indenture unless otherwise indicated herein. 

  
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 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. 

 

			
	 UNION ELECTRIC COMPANY

		
	 By:
	 	        /s/ Jerre E. Birdsong
		
	 Title:
	 	        Vice President and Treasurer
		
	 Attest:
	 	        /s/ Craig S. Stensland
		
	 Title:
	 	        Assistant Secretary


 TRUSTEE’S CERTIFICATE 
 OF AUTHENTICATION 
 Dated: September 11, 2012 

This Note is one of the Notes of the series herein 
 designated, described or provided for in the within- 
 mentioned Indenture. 

 

			
	THE BANK OF NEW YORK MELLON, As Trustee
	 By:
	 	        /s/ Francine Kincaid
		 	         Authorized Signatory



  
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 ABBREVIATIONS 
 The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations:

  

			
	TEN COM — as tenants in common	 	UNIF GIFT
		 	MIN
ACT—                     Custodian              
      
		 	                         (Cust)
                        (Minor)
		
	TEN ENT — as tenants by the entireties	 	Under Uniform Gifts to Minors
		
	 JT TEN — as joint tenants with right
 of survivorship and not as tenants in
 common
	 	 
		 	State

 Additional abbreviations may also be used 

though not in the above list. 
  

 
 FOR VALUE
RECEIVED the undersigned hereby sell(s), 
 assign(s) and transfer(s) unto 

PLEASE INSERT SOCIAL SECURITY OR OTHER 

IDENTIFYING NUMBER OF ASSIGNEE 
  

 
  

 
  

 
 Please print or typewrite name and
address 
 including postal zip code of assignee 
  


					
	 the within note and all rights thereunder, hereby
 irrevocably constituting and appointing attorney to
 transfer said note on the books of the
Company, with full
 power of substitution in the premises.
 Dated:                                
    
	 	
		 		 	
		 	 NOTICE: The signature to this assignment must correspond with the name as written upon
the face of the within instrument in every particular, without alteration or enlargement or any change whatever.
  
 Signature(s) must be guaranteed by a financial institution that is a member of the Securities Transfer Agents Medallion Program (“STAMP”), the Stock Exchange Medallion Program (“SEMP”)
or the New York Stock Exchange, Inc. Medallion Signature Program (“MSP”)



  
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