EX-4.3



 Exhibit 4.3 

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (“DTC”), TO THE COMPANY OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 UNLESS AND UNTIL THIS GLOBAL NOTE IS EXCHANGED IN WHOLE OR IN PART FOR A GLOBAL NOTE IN
DEFINITIVE REGISTERED FORM, THIS GLOBAL NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH
SUCCESSOR DEPOSITARY. 







 CVS HEALTH CORPORATION 
  

							
	 No. [●]
	  	$	500,000,000	 	  	
			
	 CUSIP No. 126650 DA5
	  				  	
	 ISIN No. US126650DA50
	  				  	

 3.125% Senior Note due 2020 

CVS HEALTH CORPORATION, a Delaware corporation (such corporation, and its successors and assigns under the Indenture hereinafter referred to,
being herein called the “Company”), for value received promises to pay to CEDE & CO., or registered assigns, the principal sum of $500,000,000 on March 9, 2020. If such maturity date is not a Business Day, then payment
of principal will be made on the next succeeding Business Day and no interest will accrue on the amount so payable for the period from such maturity date to the date payment is made. 

Interest Payment Dates: March 9 and September 9. 

Record Dates: Each February 22 and August 25, immediately preceding each Interest Payment Date. 

Additional provisions of this Note are set forth on the reverse side of this Note. 

[Remainder of page intentionally left blank] 







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

 

			
	CVS HEALTH CORPORATION
		
	By:	 	
                     
                    

		 	Name:
		 	Title:
		
	By:	 	  

		 	Name:
		 	Title:



  
 [Signature Page to
Note No. [●] of 2020 Notes] 








 Dated: March 9, 2018 

TRUSTEE’S CERTIFICATE OF AUTHENTICATION 
 THE BANK OF NEW
YORK MELLON TRUST COMPANY, N.A., 
 as Trustee, certifies that this is one of the Debt Securities referred to in the Indenture. 

 

			
	By	 	
                     


		 	Authorized Signatory


  
 [Signature Page to
Note No. [●] of 2020 Notes] 








 3.125% Senior Note due 2020 

This Note is one of a duly authorized series of Notes of CVS Health Corporation, a Delaware corporation (such corporation, and its successors
and assigns under the Indenture hereinafter referred to, being herein called the “Company”), designated as its 3.125% Senior Notes due 2020 (hereinafter referred to as the “Notes”). 

 

	 	(a)	Interest 

 The Company promises to pay interest on the principal amount of this Note at the rate
per annum shown above. 
 The Company will pay interest on the Notes semi-annually on March 9 and September 9 of each year,
commencing September 9, 2018. Interest on the Notes will accrue from the most recent date to which interest has been paid or provided for, or, if no interest has been paid or provided for, from March 9, 2018. Interest will be computed on
the basis of a 360-day year of twelve 30-day months. The Company shall pay interest on overdue principal at the rate borne by the Notes. If any interest payment
date is not a Business Day, then payment of interest will be made on the next succeeding Business Day and no interest will accrue on the amount so payable for the period from such interest payment date to the date payment is made. 

 

	 	(b)	Method of Payment 

 The Company will pay interest on the Notes (except defaulted interest) to
the Persons who are registered Holders thereof at the close of business on the February 22 and August 25 (whether or not a Business Day) immediately preceding the interest payment date even if the Notes are canceled after the record date
and on or before the interest payment date. Holders must surrender Notes to a Paying Agent to collect principal payments. The Company will pay principal, premium, if any, and interest in money of the United States that at the time of payment is
legal tender for payment of public and private debts by wire transfer of immediately available funds to the accounts specified by the Holders, or, if no such account is specified, the Company may pay principal and interest by check payable in such
money. It may mail an interest check to a Holder’s registered address. 
  

	 	(c)	Paying Agent and Registrar 

 Initially, The Bank of New York Mellon Trust Company, N.A., a
national banking association (the “Trustee”), will act as Paying Agent and Registrar. The Company may appoint and change any Paying Agent, Registrar or co-registrar without notice. The Company
or any of its domestically incorporated Wholly Owned Subsidiaries may act as Paying Agent, Registrar or co-registrar. 
  

	 	(d)	Indenture 

 The Company issued the Notes under an Indenture dated as of August 15, 2006
(the “Indenture”), between the Company and the Trustee. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C. ss.ss.
77aaa-77bbbb) as in effect on the date of the Indenture (the 

  
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“TIA”). Terms defined in the Indenture and not defined herein have the meanings ascribed thereto in the Indenture. The Notes are subject to all such terms, and Holders of Notes
are referred to the Indenture and the TIA for a statement of those terms. 
 The Notes are general unsecured senior obligations of the
Company initially limited to $2,000,000,000 aggregate principal amount (subject to Section 2.08 of the Indenture). The Company may at any time issue additional Notes under the Indenture in unlimited amounts having the same terms as and treated
as a single class with the Notes for all purposes under the Indenture and will vote together as one class with respect to the Notes. The Indenture imposes certain limitations on the incurrence of certain additional indebtedness by the Company and
certain of its subsidiaries and the entry into certain sale and leaseback arrangements by the Company and certain of its subsidiaries. The Indenture also restricts the ability of the Company to consolidate or merge with or into, or to transfer all
or substantially all its assets to, another person. 
  

	 	(e)	Optional Redemption 

 Prior to March 9, 2020, the Company, at its option, may at any time
redeem all or any portion of the Notes upon not less than 15 nor more than 60 days’ notice, at a redemption price, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, equal to the greater of (i) 100% of the
aggregate principal amount of the Notes being redeemed or (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes being redeemed (not including any portion of such payments of interest
accrued to the redemption date) discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the
applicable Treasury Yield plus 15 basis points. If any redemption date is not a Business Day, then payment of the redemption price and accrued and unpaid interest will be made on the next succeeding Business Day, and no interest will accrue on the
amounts so payable for the period from such redemption date to the date payment is made. 
 “Comparable Treasury Issue”
means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the Notes 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 such remaining term. 
 “Comparable Treasury
Price” means, with respect to any redemption date, (i) the average of the applicable Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest such applicable Reference Treasury Dealer
Quotations, or (ii) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such Reference Treasury Dealer Quotations. 

“Independent Investment Banker” means Barclays Capital Inc. or, if such firm is unwilling or unable to select the applicable
Comparable Treasury Issue, an independent investment banking institution of national standing appointed by the Company. 

  
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 “Reference Treasury Dealer” means (i) Barclays Capital Inc., Goldman
Sachs & Co. LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and J.P. Morgan Securities LLC and their respective successors; provided, however, that if any of the foregoing shall cease to be a primary United
States Government securities dealer in New York City (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer and (ii) any other Primary Treasury Dealer 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 Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue for the Notes (expressed in each case as a percentage of its aggregate principal amount) quoted in writing to the Independent
Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third business day preceding such redemption date. 

“Treasury Yield” 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 aggregate principal amount) equal to the applicable Comparable Treasury Price for such redemption date. 

 

	 	(f)	Notice of Optional Redemption 

 Notice of redemption shall be transmitted by the Company (or, at
the Company’s request, by the Trustee on the Company’s behalf) to each Holder of Notes to be redeemed. Notes in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000. If money sufficient to pay the
redemption price of and accrued interest on all Notes (or portions thereof) to be redeemed on the redemption date is deposited with the Paying Agent on or before the redemption date and certain other conditions are satisfied, on and after such date
interest ceases to accrue on such Notes (or such portions thereof) called for redemption. 
  

	 	(g)	Special Mandatory Redemption 

 On December 3, 2017, the Company entered into a merger
agreement (the “Merger Agreement”) to acquire Aetna Inc. (the “Merger”). If (i) the Merger has not been consummated on or prior to September 3, 2019 (the “Outside Date”), (ii) prior to the
Outside Date, the Merger Agreement is terminated, or (iii) the Company otherwise publicly announces that the Merger will not be consummated, then the Company will be required to redeem (the “Special Mandatory Redemption”) all
outstanding Notes on the Special Mandatory Redemption Date (as defined below) at a special mandatory redemption price equal to 101% of the aggregate principal amount of the Notes plus accrued and unpaid interest, if any, to, but excluding, the
Special Mandatory Redemption Date (the “Special Mandatory Redemption Price”). 
 The “Special Mandatory Redemption
Date” means the 20th day (or if such day is not a Business Day, the first Business Day thereafter) after the earliest to occur of (1) the Outside Date, if the Merger has not been consummated on or prior to the Outside Date,
(2) the date of termination of the Merger Agreement, or (3) the date of public announcement by the Company that the Merger will not be consummated. 

  
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 Notwithstanding the foregoing, installments of interest on the Notes that are due and payable on
Interest Payment Dates falling on or prior to the Special Mandatory Redemption Date will be payable on such Interest Payment Dates to the registered Holders as of the close of business on the relevant record dates in accordance with the terms of
this Note and the Indenture. 
 The Company will cause the notice of special mandatory redemption to be transmitted, with a copy to the
Trustee, within five Business Days after the occurrence of the event triggering the special mandatory redemption to each Holder at its registered address. If funds sufficient to pay the Special Mandatory Redemption Price of the outstanding Notes to
be redeemed on the Special Mandatory Redemption Date are deposited with the Trustee or Paying Agent on or before such Special Mandatory Redemption Date, and certain other conditions are satisfied, on and after such Special Mandatory Redemption Date,
the outstanding Notes will cease to bear interest. 
 Upon the consummation of the Merger, the foregoing provisions regarding the Special
Mandatory Redemption will cease to apply. 
  

	 	(h)	Repurchase of the Notes Upon a Change of Control Triggering Event 

 If a Change of Control
Triggering Event (as defined below) occurs, Holders of the Notes will have the right to require the Company to repurchase all or any part (in integral multiples of $1,000 original principal amount) of their Notes pursuant to the offer described
below (“Change of Control Offer”) on the terms set forth in this Note. In the Change of Control Offer, the Company will be required to offer payment in cash equal to 101% of the aggregate principal amount of Notes repurchased plus
accrued and unpaid interest, if any, on the Notes repurchased, to, but excluding, the date of purchase (“Change of Control Payment”). Within 30 days following any Change of Control Triggering Event, the Company will be required to
mail a notice to Holders of Notes describing the transaction or transactions that constitute the Change of Control Triggering Event and offering to repurchase the Notes on the date specified in the notice, which date will be no earlier than 30 days
and no later than 60 days from the date such notice is mailed (“Change of Control Payment Date”), pursuant to the procedures required by the Notes and described in such notice. The Company must comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of
Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control provisions of the Notes, the Company will be required to comply with the applicable securities laws and regulations
and will not be deemed to have breached its obligations under the Change of Control provisions of the Notes by virtue of such conflicts and compliance with law. 

On the Change of Control Payment Date, the Company will be required, to the extent lawful, to: 

 

	 	•	 	accept for payment all Notes properly tendered pursuant to the Change of Control Offer; 


  
 8 









	 	•	 	deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and 


 

	 	•	 	deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased.


 The Company will not be required to make a Change of Control Offer upon the occurrence of a Change of Control Triggering
Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company and the third party repurchases all Notes properly tendered and not withdrawn under its offer.
In addition, the Company will not repurchase any Notes if there has occurred and is continuing on the Change of Control Payment Date an event of default under the Indenture, other than a default in the payment of the Change of Control Payment upon a
Change of Control Triggering Event. 
 For purposes of the foregoing, the following definitions are applicable: 

“Below Investment Grade Rating Event” means that the Notes are rated below an Investment Grade Rating by each of the Rating
Agencies (as defined below) on any date from the date of the public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following public notice of the
occurrence of the Change of Control (which 60-day period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies);
provided, however, that a Below Investment Grade Rating Event otherwise arising by virtue of a particular reduction in rating will not be deemed to have occurred in respect of a particular Change of Control (and thus will not be deemed
a Below Investment Grade Rating Event for purposes of the definition of Change of Control Triggering Event) if the Rating Agencies making the reduction in rating to which this definition would otherwise apply do not announce or publicly confirm or
inform the Trustee in writing at the Company’s or the Trustee’s request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of
Control (whether or not the applicable Change of Control has occurred at the time of the Below Investment Grade Rating Event). 

“Change of Control” means the occurrence of any of the following: (1) any event requiring the filing of any report under
or in response to Schedule 13D or 14D-1 pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”) disclosing beneficial ownership of either 50% or more of the
Company’s common stock then outstanding or 50% or more of its voting power or its voting stock then outstanding; (2) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in
one or a series of related transactions, of all or substantially all of the properties or the Company’s assets and the assets of its respective subsidiaries taken as a whole to one or more persons (as defined in the Indenture) other than the
Company or one of its subsidiaries; or (3) the first day on which a majority of the members of the Company’s Board of Directors are not Continuing Directors. 

  
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 Notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control if
(1) the Company becomes a direct or indirect wholly-owned subsidiary of a holding company and (2)(A) the direct or indirect holders of the voting stock of such holding company immediately following that transaction are substantially the same as
the holders of the Company’s voting stock immediately prior to that transaction or (B) immediately following that transaction no person (other than a holding company satisfying the requirements of this sentence) is the beneficial owner,
directly or indirectly, of more than 50% of the voting stock of such holding company. 
 “Change of Control Triggering
Event” means the occurrence of both a Change of Control and a Below Investment Grade Rating Event. 
 “Continuing
Director” means, as of any date of determination, any member of the Company’s Board of Directors who (1) was a member of such Board of Directors on the date of the issuance of the Notes; or (2) was nominated for election or
elected to such Board of Directors with the approval of a majority of the Continuing Directors who were members of such Board of Directors at the time of such nomination or election (either by a specific vote or by approval of the Company’s
proxy statement in which such member was named as a nominee for election as a director, without objection to such nomination). 

“Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by S&P. 
 “Moody’s” means Moody’s Investors
Service, Inc., or its successor. 
 “Rating Agencies” means (1) each of Moody’s and S&P; and (2) if any
of Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” within the meaning
of Rule 3(a)(62) under the Exchange Act selected by the Company (as certified by a resolution of the Company’s Board of Directors) as a replacement agency for Moody’s or S&P, or both of them, as the case may be. 

“S&P” means S&P Global Ratings, a division of S&P Global Inc., or its successor. 

 

	 	(i)	Denominations; Transfer; Exchange 

 The Notes are in registered form without coupons in
denominations of $2,000 and integral multiples of $1,000 in excess thereof. Holders of Notes may transfer or exchange Notes in accordance with the Indenture. The Registrar may require a Holder of Notes, among other things, to furnish appropriate
endorsements or transfer documents and to pay any taxes and fees required by law or permitted by the Indenture. The Registrar need not register the transfer of or exchange any Notes selected for redemption (except, in the case of a Note to be
redeemed in part, the portion of the Note not to be redeemed) or any Notes for a period of 15 days before a selection of Notes to be redeemed or 15 days before an interest payment date. 

  
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	 	(j)	Persons Deemed Owners 

 The registered Holder of this Note may be treated as the sole owner of
such Note for all purposes. 
  

	 	(k)	Unclaimed Money 

 Subject to applicable abandoned property law, if money for the payment of
principal or interest remains unclaimed for two years, the Trustee or Paying Agent shall pay the money back to the Company at its request unless an abandoned property law designates another Person. After any such payment, Holders entitled to the
money must look only to the Company and not to the Trustee or Paying Agent for payment. 
  

	 	(l)	Discharge and Defeasance 

 Subject to certain conditions, the Company at any time may terminate
some or all of its obligations under the Notes and the Indenture if the Company deposits with the Trustee money or U.S. Government Obligations for the payment of principal and interest on the Notes to redemption or maturity, as the case may be. 

 

	 	(m)	Amendment; Waiver 

 Subject to certain exceptions set forth in the Indenture, (i) the
Indenture or the Notes may be amended with the written consent of the Holders of at least a majority in principal amount outstanding of the Notes; and (ii) any default or compliance with any provision may be waived with the written consent of
the Holders of a majority in principal amount of the Notes then outstanding. Subject to certain exceptions set forth in the Indenture, without the consent of any Holder of a Note, the Company and the Trustee may amend the Indenture or the Notes to
cure any ambiguity, omission, defect or inconsistency that does not materially and adversely affect the rights of any Holder of a Note, or to comply with Article 5 of the Indenture or to comply with requirements of the SEC in connection with
the qualification of the Indenture under the TIA. 
  

	 	(n)	Defaults and Remedies 

 If an Event of Default occurs and is continuing, the Trustee or the
Holders of at least 25% in aggregate principal amount of the Notes may declare all the Notes to be due and payable immediately. Certain events of bankruptcy or insolvency are Events of Default which will result in the Notes being due and payable
immediately upon the occurrence of such Events of Default. 
 Holders of Notes may not enforce the Indenture or the Notes except as provided
in the Indenture. The Trustee may refuse to enforce the Indenture or the Notes unless it receives indemnity or security satisfactory to it. Subject to certain limitations, Holders of a majority in principal amount of the Notes may direct the Trustee
in its exercise of any trust or power. The Trustee may withhold from Holders of Notes notice of any continuing Default (except a Default in payment of principal or interest) if it determines that withholding such notice is in the interest of the
Holders of Notes. 

  
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	 	(o)	Trustee Dealings with the Company 

 Subject to certain limitations imposed by the TIA, the
Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Company or its Affiliates and may otherwise deal with the Company or
its Affiliates with the same rights it would have if it were not Trustee. 
  

	 	(p)	No Recourse Against Others 

 A director, officer, employee or stockholder, as such, of the
Company or the Trustee shall not have any liability for any obligations of the Company under the Notes or the Indenture or for any claim based on, in respect of or by reason of such obligations. By accepting a Note, each Holder of a Note waives and
releases all such liability. The waiver and release are part of the consideration for the issue of the Notes. 
  

	 	(q)	Authentication 

 This Note shall not be valid until an authorized signatory of the Trustee (or
an authenticating agent) manually signs the certificate of authentication on the face of this Note. 
  

	 	(r)	Abbreviations 

 Customary abbreviations may be used in the name of a Holder of a Note or an
assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors Act). 

 

	 	(s)	Governing Law 

 This Note shall be governed by, and construed in accordance with, the laws of
the State of New York. 
  

	 	(t)	CUSIP Numbers 

 Pursuant to the recommendation promulgated by the Committee on Uniform Security
Identification Procedures, the Company has caused CUSIP numbers to be printed on the Notes and has directed the Trustee to use such CUSIP numbers in notices of redemption as a convenience to Holders of Notes. No representation is made as to the
accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon. 

 
  

  
 12 








 The Company will furnish to any Holder of a Note upon written request and without charge to such
Holder of a Note a copy of the Indenture. Requests may be made to: 
 CVS Health Corporation 

One CVS Drive — MC 1008 

Woonsocket, Rhode Island 02895 

Attention: Michael P. McGuire 

Terms defined in the Indenture and not otherwise defined herein are used herein as therein defined. 

  
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 ASSIGNMENT FORM 

To assign this Note, complete the form below: 

I or we assign and transfer this Note to: 

[Print or type assignee’s name, address and zip code] 

[Insert assignee’s soc. sec. or tax I.D. No.] 

and irrevocably appoint
                     as agent to 

transfer this Note on the books of CVS Health Corporation. 

The agent may substitute another to act for him. 
  

 
  

									
	Date:	 	
                     

	 		 	Your Signature:	 	
                     



  
  

Sign exactly as your name appears on the face of this Note. 

  
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