EX-10.3



 Exhibit 10.3 

AMENDMENT NO. 1 TO FIVE YEAR CREDIT AGREEMENT 

AMENDMENT NO. 1 (this “Amendment”), dated as of December 15, 2017, is entered into among CVS Health Corporation, a
Delaware corporation (the “Borrower”), The Bank of New York Mellon, as Administrative Agent and the Lenders party hereto (the “Consenting Lenders”). Except as otherwise provided herein, capitalized terms used herein
which are not defined herein shall have the meanings set forth in the Credit Agreement (as defined below). 
 WHEREAS, the Borrower, the
Lenders party thereto, the Co-Syndication Agents and Co-Documentation Agents and The Bank of New York Mellon, as Administrative Agent, entered into that certain Five
Year Credit Agreement, dated as of May 18, 2017 (the “Credit Agreement”); and 
 WHEREAS, the Borrower has requested
that the Lenders amend the Credit Agreement as set forth below. 
 NOW, THEREFORE, in consideration of the covenants, conditions and
agreements hereinafter set forth, and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, and pursuant to Section 11.1 of the Credit Agreement, the parties hereto hereby agree as follows: 

1. Amendments. The Credit Agreement is hereby amended as follows: 

(a) Section 1.1 of the Credit Agreement is hereby amended to add the following definitions in appropriate alphabetical order to read as
follows: 
 “Acquisition Agreement”: that certain Agreement and Plan of Merger, dated as of December 3, 2017,
by and among the Borrower, Merger Sub and Aetna, as amended, amended and restated, supplemented or otherwise modified from time to time. 

“Acquisition Closing Date”: the date of the consummation of the Aetna Acquisition. 

“Acquisition Indebtedness”: unsecured indebtedness in an aggregate principal amount not exceeding $49,000,000,000,
issued or borrowed by the Borrower for the purpose of financing the Aetna Acquisition (including all of the transactions costs, fees, commissions and expenses in connection therewith) and which is redeemable or prepayable if the Aetna Acquisition is
not consummated. 
 “Aetna”: Aetna Inc., a Pennsylvania corporation. 

“Aetna Acquisition”: the acquisition by the Borrower, through Merger Sub, of all of the equity interests in Aetna
pursuant to the Acquisition Agreement. 
 “CVS Bridge Facility”: if entered into by the Borrower, the
Borrower’s senior unsecured 364-day term loan facility for loans in an aggregate principal amount not to exceed $49.0 billion, the proceeds of which will be used to fund, in part, the Aetna
Acquisition, including paying all related fees, commissions and expenses. 

  
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 “CVS Bridge Facility Commitment Letter”: the commitment letter dated as
of December 3, 2017 (together with all exhibits, schedules and annexes thereto) among the Borrower, Barclays Bank PLC, Goldman Sachs Bank USA, Goldman Sachs Lending Partners LLC, Bank of America, N.A. and Merrill Lynch, Pierce,
Fenner & Smith Incorporated and any other Persons that may become parties thereto, relating to the CVS Bridge Facility. 

“Merger Sub”: Hudson Merger Sub Corp., a Pennsylvania corporation and a wholly owned Subsidiary of the Borrower. 

“Threshold Amount”: prior to the later of (x) the termination or other expiration of the CVS Bridge Facility
Commitment Letter in accordance with its terms and (y) the termination or other expiration of the CVS Bridge Facility if it is entered into, $250,000,000, and at all other times $200,000,000. 

(b) Section 4.10 of the Credit Agreement is hereby amended by adding to the end thereof the following proviso: 

; provided, that at any time that the representations set forth in this Section 4.10 are made on or prior to
the Acquisition Closing Date, with respect to any such information relating to Aetna and its subsidiaries (and its and their respective businesses) such representations are made to the best of the Borrower’s knowledge. 

(c) Section 8.1 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 

 

	 	8.1	Subsidiary Indebtedness 

 Permit the Indebtedness of all Subsidiaries (excluding
Indebtedness under capital leases incurred in connection with a sale leaseback transaction) to exceed (on a combined basis) 15% of Net Tangible Assets (the “Net Tangible Assets Test”); provided that, on and following
the Acquisition Closing Date until such time as the Borrower is in compliance with the Net Tangible Assets Test (without giving effect to clause (x) below), (x) any Indebtedness of Aetna and its Subsidiaries existing as of the Acquisition
Closing Date (but excluding any increase, refinancing or replacement thereof, in each case on and following the Acquisition Closing Date, (the “Aetna Existing Indebtedness”)) shall not be included as Indebtedness for purposes
of this Section 8.1 and (y) the Indebtedness of all Subsidiaries (excluding the Aetna Existing Indebtedness and other Indebtedness under capital leases incurred in connection with a sale leaseback transaction) shall
not at any time exceed $900,000,000 in the aggregate. 
 (d) Section 8.5 of the Credit Agreement is hereby amended and restated in its
entirety to read as follows: 
 8.5 Acquisitions 

Make any Acquisition, or permit any of the Subsidiaries so to do, except any one or more of the following: (a) Acquisitions by the
Borrower or any of the Subsidiaries in connection with Intercompany Dispositions not prohibited by Section 8.3, (b) the Aetna Acquisition, and (c) Acquisitions by the Borrower or any of the Subsidiaries,
provided that immediately before and after giving effect to each such Acquisition made pursuant to this clause (c), no Event of Default shall or would exist.” 

  
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 (e) Section 8.9 of the Credit Agreement is hereby amended and restated in its entirety to
read as follows: 
  

	 	8.9	Ratio of Consolidated Indebtedness to Total Capitalization  

 Permit its ratio of
Consolidated Indebtedness to Total Capitalization at the end of any fiscal quarter to exceed 0.60:1.00; provided that (a) from the Acquisition Closing Date through and including the fiscal quarter ending September 30, 2019, the
Borrower will not permit its ratio of Consolidated Indebtedness to Total Capitalization at the end of any fiscal quarter to exceed 0.65:1.00, and (b) until the earliest of (x) the occurrence of the Acquisition Closing Date, (y) the
date that is 30 days following the termination of the Acquisition Agreement in accordance with its terms and (z) August 31, 2019, solely for purposes of calculating compliance with this Section 8.9, Consolidated
Indebtedness and Total Capitalization shall each be calculated exclusive of any Acquisition Indebtedness. 
 (f) Section 9.1(g) of
the Credit Agreement is hereby amended by replacing the numerical threshold of “$125,000,000” set forth therein with the phrase “the Threshold Amount”. 

(g) Section 9.1(k) of the Credit Agreement is hereby amended by replacing the numerical threshold of “$125,000,000” set forth
therein with the phrase “the Threshold Amount”. 
 (h) Section 9.1(m) of the Credit Agreement is hereby amended by
replacing the numerical thresholds of “$125,000,000” set forth therein with the phrase “the Threshold Amount”. 
 2. Condition
Precedent. This Amendment shall become effective on and as of the date hereof (the “Amendment No. 1 Effective Date”) upon the receipt by the Administrative Agent, of counterparts of this Amendment executed by
the Borrower and Consenting Lenders constituting Required Lenders. 
 3. Representations and Warranties. 

(a) The Borrower hereby represents and warrants as follows: 

(i) The Borrower has taken all necessary corporate action to authorize the execution, delivery and performance of this Amendment. 

(ii) This Amendment has been duly executed and delivered by the Borrower and constitutes the valid and legally binding obligations of the
Borrower, enforceable against the Borrower in accordance with its terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors’
rights generally and by equitable principles relating to the availability of specific performance as a remedy. 

  
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 (iii) No consent or approval of, or other action by, shareholders of the Borrower, any
Governmental Authority, or any other Person (which has not already been obtained) is required to authorize in respect of the Borrower, or is required in connection with, the execution, delivery, and performance by the Borrower of this Amendment or
is required as a condition to the enforceability of this Amendment against the Borrower. 
 (b) The Borrower represents and warrants to the
Lenders that (i) the representations and warranties of the Borrower set forth in Section 4 of the Credit Agreement are true and correct in all material respects as of the date hereof with the same effect as if made on
the date hereof (provided that any representation and warranty that is qualified as to “materiality”, “Material Adverse” or similar language shall be true and correct (after giving effect to any qualification therein),
except to the extent such representations and warranties expressly relate solely to an earlier date which were true and correct in all material respects or in all respects, as applicable, on such earlier date and (ii) no event has occurred and
is continuing which constitutes a Default. 
 4. Miscellaneous. 

(a) Except as amended hereby, the Credit Agreement and the other Loan Documents shall remain in full force and effect. 

(b) On and after the Amendment No. 1 Effective Date, each reference in the Credit Agreement to “this Agreement”,
“hereunder”, “hereof” or words of like import referring to the Credit Agreement, and each reference in the other Loan Documents to “the Credit Agreement”, “thereunder”, “thereof” or words of like
import referring to the Credit Agreement, shall mean and be a reference to the Credit Agreement as modified hereby. This Amendment shall constitute a Loan Document. 

(c) This Amendment may be executed on any number of separate counterparts and all of said counterparts taken together shall be deemed to
constitute one and the same agreement. It shall not be necessary in making proof of this Amendment to produce or account for more than one counterpart signed by the party to be charged. A set of the copies of this Amendment signed by all of the
parties hereto shall be lodged with each of the Borrower and the Administrative Agent. Delivery of an executed counterpart of a signature page of this Amendment by fax or other electronic means (e.g., “.pdf” or “.tif”) shall be
effective as delivery of a manually executed counterpart of this Amendment. 
 (d) This Amendment and the rights and obligations of the
parties thereto shall be governed by, and construed and interpreted in accordance with, the laws of the State of New York. 
 [signature
pages follow] 

  
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 The parties have caused this Amendment to be duly executed as of the date first written above.

  

			
	CVS HEALTH CORPORATION
		
	By:	 	 /s/ Carol A. DeNale

	Name:	 	Carol A. DeNale
	Title:	 	Sr. Vice President & Treasurer
	
	 THE BANK OF NEW YORK MELLON,
as Administrative Agent and a
Lender

		
	By:	 	  

	Name:	 	Clifford A. Mull
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The parties have caused this Amendment to be duly executed as of the date first written above.

  

			
	CVS HEALTH CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	 THE BANK OF NEW YORK MELLON,
as Administrative Agent and a
Lender

		
	By:	 	 /s/ Clifford A. Mull

	Name:	 	Clifford A. Mull
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	GOLDMAN SACHS BANK USA, as a Lender
		
	By:	 	 /s/ Chris Lam

	Name:	 	Chris Lam
	Title:	 	Authorized Signatory


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	INDUSTRIAL AND COMMERCIAL BANK OF CHINA LIMITED, NEW YORK BRANCH, as a Lender
		
	By:	 	 /s/ Pinyen Shih

	Name:	 	Pinyen Shih
	Title:	 	Executive Director
		
	By:	 	 /s/ Hsiwei Chen

	Name:	 	Hsiwei Chen
	Title:	 	VP


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	BANK OF HAWAII, as a Lender
		
	By:	 	 /s/ Nicole Matsuo

	Name:	 	Nicole Matsuo
	Title:	 	Vice President


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	FIFTH THIRD BANK, as a Lender
		
	By:	 	 /s/ Todd S. Robinson

	Name:	 	Todd S. Robinson
	Title:	 	VP


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	MIZUHO BANK, LTD., as a Lender
		
	By:	 	 /s/ Tracy Rahn

	Name:	 	Tracy Rahn
	Title:	 	Authorized Signatory


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	ROYAL BANK OF CANADA, as a Lender
		
	By:	 	 /s/ Gordon MacArthur

	Name:	 	Gordon MacArthur
	Title:	 	Authorized Signatory


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	PNC BANK, NATIONAL ASSOCIATION, as a Lender
		
	By:	 	 /s/ William P. Herold

	Name:	 	William P. Herold
	Title:	 	Vice President


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	SUMITOMO MITSUI BANKING CORPORATION, as a Lender
		
	By:	 	 /s/ James D. Weinstein

	Name:	 	James D. Weinstein
	Title:	 	Managing Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	SUNTRUST BANK, as a Lender
		
	By:	 	 /s/ Johnetta Bush

	Name:	 	Johnetta Bush
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 THE BANK OF TOKYO-MITSUBISHI UFJ,

LTD., as a Lender

		
	By:	 	 /s/ Brian McNany

	Name:	 	Brian McNany
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 JPMORGAN CHASE BANK, N.A.,

as a Co-Syndication Agent and a Lender

		
	By:	 	 /s/ Vanessa Chiu

	Name:	 	Vanessa Chiu
	Title:	 	Executive Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 BANK OF AMERICA, N.A.,
 as a Co-Documentation Agent and as Lender

		
	By:	 	 /s/ Carlos J. Medina

	Name:	 	Carlos J. Medina
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 KEYBANK NATIONAL ASSOCIATION, as a

Lender

		
	By:	 	 /s/ Marianne T. Meil

	Name:	 	Marianne T. Meil
	Title:	 	Sr. Vice President


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	SANTANDER BANK, N.A., as a Lender
		
	By:	 	 /s/ Andres Barbosa

	Name:	 	Andres Barbosa
	Title:	 	Executive Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 U.S. BANK NATIONAL ASSOCIATION, as a

Lender

		
	By:	 	 /s/ Joyce P. Dorsett

	Name:	 	Joyce P. Dorsett
	Title:	 	Senior Vice President


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 BARCLAYS BANK PLC,
 as a Co-Syndication Agent and a Lender

		
	By:	 	 /s/ Ritam Bhalla

	Name:	 	Ritam Bhalla
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	TD BANK, N.A., as a Lender
		
	By:	 	 /s/ Uk-Sun Kim

	Name:	 	Uk-Sun Kim
	Title:	 	Senior Vice President


 [Amendment No. 1 to Five Year Credit Agreement] 







 The undersigned Lender herby consents to Amendment No. 1 to the Credit Agreement. 

 

			
	 WELLS FARGO BANK, N.A.,
 as a
Co-Documentation Agent and a Lender

		
	By:	 	 /s/ Chris Johnson

	Name:	 	Chris Johnson
	Title:	 	Director


 [Amendment No. 1 to Five Year Credit Agreement]