Document:

First Supplemental Indenture relating to 1.625% Convertible Senior Notes

 Exhibit 4.1 
  
  
 CHATTEM, INC. 
 SANOFI-AVENTIS 
 and 
 U.S. BANK
NATIONAL ASSOCIATION 
  
  
 First Supplemental Indenture 
 Dated as of March 10, 2010 
 to the 
 Indenture 
 Dated as
of April 11, 2007 
  
  

 FIRST SUPPLEMENTAL INDENTURE 
 This FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental Indenture”), dated as of March 10, 2010, is entered into by and among Chattem, Inc., a Tennessee corporation (the
“Company”), sanofi-aventis, a French societe anonymé (“sanofi”), and U.S. Bank National Association, a national banking association (the “Trustee”). 
 RECITALS: 
 WHEREAS, the Company and the Trustee have heretofore entered into
that certain Indenture, dated as of April 11, 2007 (the “Indenture”), to provide for the issuance of the Company’s 1.625% Convertible Senior Notes due 2014 (the “Securities”); 
 WHEREAS, the Company, sanofi and River Acquisition Corp., a Tennessee corporation and an indirect wholly-owned subsidiary of sanofi (the “Merger
Sub”), entered into an Agreement and Plan of Merger, dated as of December 20, 2009 (the “Merger Agreement”); 
 WHEREAS,
pursuant to the Merger Agreement, Merger Sub will merge with and into the Company and the Company will become a subsidiary of sanofi (the “Merger”); 
 WHEREAS, Sections 6.01 and 6.02 of the Indenture permit the Company to merge with and into another person so long as certain conditions have been met; 
 WHEREAS, as a result of the Merger, the Company will be a subsidiary of sanofi and, at the effective time of the Merger, each issued and outstanding share
of the Company’s common stock, without par value (the “Common Stock”) (including the associated rights to purchase the Series A Preferred Stock of the Company issued under the rights agreement, dated as of January 27, 2000,
between the Company and SunTrust Bank, Atlanta, as rights agent, as amended) shall be convertible into the right to receive $93.50 per share of Common Stock net to the seller in cash, without interest and subject to any withholding taxes (the
“Merger Consideration”); 
 WHEREAS, Section 4.10 of the Indenture provides, among other things, that in the case of any merger
involving the Company as a result of which holders of Common Stock are entitled to receive stock, other securities, other property or assets (including cash or any combination thereof) with respect to or in exchange for Common Stock, the Company or
the successor or purchasing corporation, as the case may be, shall execute with the Trustee a supplemental indenture providing that the settlement of the Conversion Value will be based on the kind and amount of shares of stock, other securities or
other property or assets (including cash or any combination thereof) which Holders of Common Stock receive in such Business Combination in respect of each share of Common Stock.; and 
 WHEREAS, all other acts and proceedings required by law and the Indenture necessary to authorize the execution and delivery of this First Supplemental Indenture and to make this First Supplemental
Indenture a valid and binding agreement for the purposes expressed herein, in accordance with its terms, have been complied with or have been duly done or performed; 
 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto mutually covenant and agree for the equal
and ratable benefit of the Holders as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.01. Definitions. 
 Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. For all purposes of this First Supplemental
Indenture, except as otherwise herein expressly provided or unless the context otherwise requires: (i) the terms and expressions used herein shall have the same meanings as corresponding terms and expressions used in the Indenture and
(ii) the words “herein,” “hereof” and “hereby” and other words of similar import used in this First Supplemental Indenture refer to this First Supplemental Indenture as a whole and not to any particular section
hereof. 
  

 2 

 ARTICLE II 
 AMENDMENTS 
 Section 2.01. Conversion of Notes into Merger Consideration. 
 As of the date hereof, and subject to and upon compliance with the provisions of the Indenture, the Holder of a Note may convert such Note into the right to
receive the Merger Consideration for each share of Common Stock into which the Holder is entitled to convert such Note and upon conversion of the Notes by a Holder, the Company will pay to such Holder cash in an amount equal to the amount such
Holder would have received as Merger Consideration had such Holder converted its Notes at the Conversion Rate in effect immediately prior to the Merger, in accordance with the terms and conditions of the Indenture and the Notes. The adjustments
provided for in Article 4 of the Indenture shall apply as nearly equivalent as may be practical to the Company and Common Stock as those that applied immediately prior to the Merger. 
 Section 2.02. Settlement Upon Conversion. 
 Upon conversion of any Note, subject to and upon
compliance with the provisions of the Indenture, as supplemented hereby, the Company shall satisfy its obligation upon conversion by payment and delivery of cash in an amount equal to the aggregate Conversion Value of the Note(s) so converted.

 Section 2.03. Effectiveness. 
 This First Supplemental Indenture will become effective and operative and binding upon each of the Company, the Trustee and the holders of the Notes as of the day and year first above written. 
 ARTICLE III 
 MISCELLANEOUS 
 Section 3.01. Reference to and Effect on the Indenture. 
 On and after the date of this First Supplemental Indenture, each reference in the Indenture to “this Indenture,” “hereunder,”
“hereof,” or “herein” shall mean and be a reference to the Indenture as supplemented by this First Supplemental Indenture unless the context otherwise requires. The Indenture, as supplemented by this First Supplemental Indenture,
shall be read, taken and construed as one and the same instrument. Except as specifically amended above, the Indenture shall remain in full force and effect and is hereby ratified and confirmed. 
 Section 3.02. Governing Law. 
 This First
Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York. 
 Section 3.03. Trust
Indenture Act Controls. 
 No modification of any provisions of the Indenture effected by this First Supplemental Indenture is intended to
eliminate or limit any provision of the Indenture that is required to be included therein by the Trust Indenture Act of 1939, as amended, as in force as of the effectiveness of this First Supplemental Indenture. 
 Section 3.04. Trustee Disclaimer; Trust. 
 The
recitals contained in this First Supplemental Indenture shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this
First Supplemental Indenture. The Trustee accepts the trust created by the Indenture, as supplemented by this First Supplemental Indenture, and agrees to perform the same upon the terms and conditions of the Indenture, as supplemented hereby.

 Section 3.05. Counterparts. 
 This First Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original; but such counterparts shall constitute but one and the same instrument. 
  

 3 

 Section 3.06. Effect of Headings. 
 The Article and Section headings herein are for convenience only and shall not affect the construction hereof. 
 Section 3.07. Severability. 
 In case any provision of this First Supplemental Indenture shall
be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be effected or impaired thereby. 
 ***** 
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 4 

 IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed,
all as of the day and year first written above. 
  

			
	CHATTEM, INC.
		
	By:	 	 /s/ Robert E. Bosworth

	Name:	 	Robert E. Bosworth
	Title:	 	President and Chief Operating Officer

  

			
	SANOFI-AVENTIS
		
	By:	 	 /s/ Jérôme Contamine

	Name:	 	Jérôme Contamine
	Title:	 	Executive Vice President and Chief Financial Officer

 Signature Page to First Supplemental Indenture 
  

 5 

			
	U.S. BANK, NATIONAL ASSOCIATION
		
	By:	 	 /s/ Wally Jones

	Name:	 	Wally Jones
	Title:	 	Vice President

 Signature Page to First
Supplemental Indenture 
  

 6First Supplemental Indenture relating to 2.00% Convertible Senior Notes

 Exhibit 4.2 
  
  
 CHATTEM, INC. 
 SANOFI-AVENTIS 
 and 
 U.S. BANK
NATIONAL ASSOCIATION 
  
  
 First Supplemental Indenture 
 Dated as of March 10, 2010 
 to the 
 Indenture 
 Dated as
of November 22, 2006 
  
  

 FIRST SUPPLEMENTAL INDENTURE 
 This FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental Indenture”), dated as of March 10, 2010, is entered into by and among Chattem, Inc., a Tennessee corporation (the
“Company”), sanofi-aventis, a French societe anonymé (“sanofi”), and U.S. Bank National Association, a national banking association (the “Trustee”). 
 RECITALS: 
 WHEREAS, the Company and the Trustee have heretofore entered into
that certain Indenture, dated as of November 22, 2006 (the “Indenture”), to provide for the issuance of the Company’s 2.00% Convertible Senior Notes due 2013 (the “Securities”); 
 WHEREAS, the Company, sanofi and River Acquisition Corp., a Tennessee corporation and an indirect wholly-owned subsidiary of sanofi (the “Merger
Sub”), entered into an Agreement and Plan of Merger, dated as of December 20, 2009 (the “Merger Agreement”); 
 WHEREAS,
pursuant to the Merger Agreement, Merger Sub will merge with and into the Company and the Company will become a subsidiary of sanofi (the “Merger”); 
 WHEREAS, Sections 6.01 and 6.02 of the Indenture permit the Company to merge with and into another person so long as certain conditions have been met; 
 WHEREAS, as a result of the Merger, the Company will be a subsidiary of sanofi and, at the effective time of the Merger, each issued and outstanding share
of the Company’s common stock, without par value (the “Common Stock”) (including the associated rights to purchase the Series A Preferred Stock of the Company issued under the rights agreement, dated as of January 27, 2000,
between the Company and SunTrust Bank, Atlanta, as rights agent, as amended) shall be convertible into the right to receive $93.50 per share of Common Stock net to the seller in cash, without interest and subject to any withholding taxes (the
“Merger Consideration”); 
 WHEREAS, Section 4.10 of the Indenture provides, among other things, that in the case of any merger
involving the Company as a result of which holders of Common Stock are entitled to receive stock, other securities, other property or assets (including cash or any combination thereof) with respect to or in exchange for Common Stock, the Company or
the successor or purchasing corporation, as the case may be, shall execute with the Trustee a supplemental indenture providing that the settlement of the Conversion Value will be based on the kind and amount of shares of stock, other securities or
other property or assets (including cash or any combination thereof) which Holders of Common Stock receive in such Business Combination in respect of each share of Common Stock; and 
 WHEREAS, all other acts and proceedings required by law and the Indenture necessary to authorize the execution and delivery of this First Supplemental Indenture and to make this First Supplemental
Indenture a valid and binding agreement for the purposes expressed herein, in accordance with its terms, have been complied with or have been duly done or performed; 
 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto mutually covenant and agree for the equal
and ratable benefit of the Holders as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.01. Definitions. 
 Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. For all purposes of this First Supplemental
Indenture, except as otherwise herein expressly provided or unless the context otherwise requires: (i) the terms and expressions used herein shall have the same meanings as corresponding terms and expressions used in the Indenture and
(ii) the words “herein,” “hereof” and “hereby” and other words of similar import used in this First Supplemental Indenture refer to this First Supplemental Indenture as a whole and not to any particular section
hereof. 
  

 2 

 ARTICLE II 
 AMENDMENTS 
 Section 2.01. Conversion of Notes into Merger Consideration. 
 As of the date hereof, and subject to and upon compliance with the provisions of the Indenture, the Holder of a Note may convert such Note into the right to
receive the Merger Consideration for each share of Common Stock into which the Holder is entitled to convert such Note and upon conversion of the Notes by a Holder, the Company will pay to such Holder cash in an amount equal to the amount such
Holder would have received as Merger Consideration had such Holder converted its Notes at the Conversion Rate in effect immediately prior to the Merger, in accordance with the terms and conditions of the Indenture and the Notes. The adjustments
provided for in Article 4 of the Indenture shall apply as nearly equivalent as may be practical to the Company and Common Stock as those that applied immediately prior to the Merger. 
 Section 2.02. Settlement Upon Conversion. 
 Upon conversion of any Note, subject to and upon
compliance with the provisions of the Indenture, as supplemented hereby, the Company shall satisfy its obligation upon conversion by payment and delivery of cash in an amount equal to the aggregate Conversion Value of the Note(s) so converted.

 Section 2.03. Effectiveness. 
 This First Supplemental Indenture will become effective and operative and binding upon each of the Company, the Trustee and the holders of the Notes as of the day and year first above written. 
 ARTICLE III 
 MISCELLANEOUS 
 Section 3.01. Reference to and Effect on the Indenture. 
 On and after the date of this First Supplemental Indenture, each reference in the Indenture to “this Indenture,” “hereunder,”
“hereof,” or “herein” shall mean and be a reference to the Indenture as supplemented by this First Supplemental Indenture unless the context otherwise requires. The Indenture, as supplemented by this First Supplemental Indenture,
shall be read, taken and construed as one and the same instrument. Except as specifically amended above, the Indenture shall remain in full force and effect and is hereby ratified and confirmed. 
 Section 3.02. Governing Law. 
 This First
Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York. 
 Section 3.03. Trust
Indenture Act Controls. 
 No modification of any provisions of the Indenture effected by this First Supplemental Indenture is intended to
eliminate or limit any provision of the Indenture that is required to be included therein by the Trust Indenture Act of 1939, as amended, as in force as of the effectiveness of this First Supplemental Indenture. 
 Section 3.04. Trustee Disclaimer; Trust. 
 The
recitals contained in this First Supplemental Indenture shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this
First Supplemental Indenture. The Trustee accepts the trust created by the Indenture, as supplemented by this First Supplemental Indenture, and agrees to perform the same upon the terms and conditions of the Indenture, as supplemented hereby.

 Section 3.05. Counterparts. 
 This First Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original; but 
 such
counterparts shall constitute but one and the same instrument. 
  

 3 

 Section 3.06. Effect of Headings. 
 The Article and Section headings herein are for convenience only and shall not affect the construction hereof. 
 Section 3.07. Severability. 
 In case any provision of this First Supplemental Indenture shall
be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be effected or impaired thereby. 
 ***** 
 [THE REMAINDER OF THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK] 

 

 4 

 IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed,
all as of the day and year first written above. 
  

			
	CHATTEM, INC.
		
	By:	 	 /s/ Robert E. Bosworth

	Name:	 	Robert E. Bosworth
	Title:	 	President and Chief Operating Officer

  

			
	SANOFI-AVENTIS
		
	By:	 	 /s/ Jérôme Contamine

	Name:	 	Jérôme Contamine
	Title:	 	Executive Vice President and Chief Financial Officer

 Signature Page to First Supplemental Indenture 
  

 5 

			
	U.S. BANK, NATIONAL ASSOCIATION
		
	By:	 	 /s/ Wally Jones

	Name:	 	Wally Jones
	Title:	 	Vice President

 Signature Page to First
Supplemental Indenture 
  

 6

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