Document:

EX-10.21

 Exhibit 10.21 
 AMENDMENT TO REGISTRATION RIGHTS AGREEMENT 
 THIS AMENDMENT TO REGISTRATION
RIGHTS AGREEMENT (this “Amendment”) is made and entered into as of July 18, 2013 by and between American Homes 4 Rent, a Maryland real estate investment trust (the “Company”), and American Homes 4 Rent, LLC, a
Delaware limited liability company (“AH LLC”). 
 WHEREAS, the Company and AH LLC entered into that certain
Registration Rights Agreement dated as of June 10, 2013 (the “Original Agreement”). The Original Agreement as amended by this Amendment shall be referred to as the “Agreement”; and 

WHEREAS, in connection with the purchase of Class A Common Shares from the Company by AH LLC in a private transaction to close at
the time of closing of the initial public offering of the Class A Common Shares (the “AH LLC Private Placement”), the parties hereto desire to amend the Original Agreement as set forth herein to provide for the registration of
any Class A Common Shares beneficially owned by AH LLC at any time during the term of the Agreement. 
 NOW, THEREFORE, for
good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 
 1. Capitalized Terms. Except as otherwise expressly provided in this Amendment, all capitalized terms used herein shall have the meanings as set forth in the Original Agreement. 

2. Replacement Definition of Registrable Securities. The definition of “Registrable Securities” in the Original
Agreement is hereby deleted in its entirety and replaced with the following: 
 “Registrable
Securities” means Class A Common Shares, which may consist of any combination of (a) any Class A Common Shares that are beneficially owned by AH LLC during the term of this Agreement, (b) the Conversion Shares,
(c) the Redemption Shares, and (d) any Class A Common Shares issued or issuable to a Holder with respect to the Conversion Shares or Redemption Shares by way of share dividend or share split or in connection with a combination of
shares, recapitalization, merger, consolidation or other reorganization or otherwise. As to any particular Registrable Securities, such securities shall cease to be Registrable Securities when (i) a Registration Statement covering such
securities has been declared effective by the SEC and such securities have been disposed of pursuant to such effective Registration Statement, (ii) if in the event the Company is subject to the reporting requirements of Section 13(a) or
15(d) of the Exchange Act, the date on which such securities have been transferred pursuant to Rule 144 (or any similar provision then in effect) or are freely saleable, without condition pursuant to Rule 144, including any current public
information requirements, (iii) such securities are otherwise transferred and such securities may be resold without subsequent registration under the Securities Act, or (iv) such securities shall have ceased to be outstanding. 

 3. Ratification. Except as expressly set forth above and except that all provisions
in the Original Agreement which are inconsistent with the foregoing are hereby amended so as to be consistent with the foregoing, the Company and AH LLC hereby ratify and affirm the Agreement in all respects. 

4. Counterparts. This Amendment may be executed in two or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument. In order to expedite the amendment contemplated herein, telecopied or emailed (i.e., PDF) signatures may be used in place of original signatures on this Amendment or any document delivered
pursuant hereto. The parties intend to be bound by the signatures on the telecopied or emailed document and are aware that the other parties will rely on the telecopied or emailed signatures, and hereby waive any defenses to the enforcement of the
terms of this Amendment based on such telecopied or emailed signature. 
 [The remainder of this page intentionally left
blank.] 

 IN WITNESS WHEREOF, each of the undersigned has caused this Amendment to be duly executed
and delivered in its name and on its behalf as of the date first written above. 
  

			
	AMERICAN HOMES 4 RENT
		
	By:	 	 /s/ Matthew J. Hart

	Name:	 	Matthew J. Hart
	Title:	 	Chairman of the Special Committee of the Board of Trustees
	
	AMERICAN HOMES 4 RENT, LLC
		
	By:	 	 /s/ David P. Singelyn

	Name:	 	David P. Singelyn
	Title:	 	Manager

 [Signature Page – Amendment to Registration Rights Agreement]Share Exchange Agreement between Nidec Corporation and Nidec Copal Corporation

 Exhibit 4.2 
 (Translation) 
 Share Exchange Agreement 

Nidec Corporation (hereinafter, “Nidec”) and Nidec Copal Corporation (hereinafter, “Nidec Copal”) hereby conclude a Share Exchange
Agreement (hereinafter, “the Agreement”) as detailed below. 
 Article 1    Exchange of Shares 

In accordance with the provisions of the Agreement, Nidec and Nidec Copal shall undertake an exchange of shares (hereafter, “the Share
Exchange”) in which Nidec Copal becomes a wholly owned subsidiary of Nidec. As a result of the Share Exchange, Nidec shall acquire all the outstanding shares in Nidec Copal (excluding the shares in Nidec Copal already owned by Nidec).

 Article 2    Names and Registered Addresses of Parties to Share Exchange 

The names and registered addresses of Nidec and Nidec Copal are detailed below. 

 

	(1)	Nidec 

  

	 	1)	Name: Nidec Corporation 

	 	2)	Address: 338 Tonoshiro-cho, Kuze, Minami-ku, Kyoto, Japan 

  

	(2)	Nidec Copal 

  

	 	1)	Name: Nidec Copal Corporation 

	 	2)	Address: 2-18-10 Shimura, Itabashi-ku Tokyo, Japan 

 Article 3    Effective Date 
 The effective date of the Share Exchange shall be
October 1, 2013. In accordance with the provisions of Article 790 of the Companies Act, this date can be altered by mutual agreement between Nidec and Nidec Copal if it is deemed necessary to ensure that the Share Exchange proceeds. In such
event, Nidec Copal shall publish the revised effective date no later than the day prior to the original effective date (or the day prior to the revised effective date, if the latter is earlier than the original effective date). 

Article 4    Number and Allocation of Shares to Effect Share Exchange 

 

	1.	Nidec shall grant a number of shares of Nidec common stock equivalent to the total number of shares of common stock in Nidec Copal owned by Nidec Copal minority
shareholders (hereafter, “Final Shareholders”) registered at the time (hereafter, “Cut-Off Date”) immediately prior to Nidec’s acquisition via the Share Exchange of all outstanding shares in Nidec Copal (excluding shares in
Nidec Copal already owned by Nidec), multiplied by 0.122 (rounding down any fractional amount of less than one share) to Final Shareholders in exchange for their shares in Nidec Copal. 

  
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	2.	To implement the Share Exchange, Nidec shall allocate to every Final Shareholder 0.122 shares of Nidec common stock for every share of common stock in Nidec Copal owned
by that shareholder. 

  

	3.	Fractional amounts of less than one share of Nidec common stock that are allocated to Final Shareholders through the Share Exchange as described in the preceding
paragraph shall be handled in accordance with the provisions of Article 234 of the Companies Act. 

 Article
5    Effect on Capital and Reserves 
 The increases in the capital and reserves of Nidec as a result of the Share Exchange
shall be as follows: 
  

			
	 (1)    Capital stock:
	 	¥0
	 (2)    Legal capital surplus:
	 	Change in shareholders’ equity as stipulated in Article 39 of the Corporate Accounting Regulations
	 (3)    Legal retained earnings:
	 	¥0

 Article 6    Approval Procedures 

 

	1.	In accordance with the provisions of Article 796 Paragraph 3 of the Companies Act, Nidec shall conduct the Share Exchange without gaining the consent of Nidec
shareholders via a resolution of a General Meeting of Shareholders. However, in accordance with the provisions of Article 796 Paragraph 4 of the Companies Act, if the consent of Nidec shareholders is required, Nidec shall put the necessary
resolutions regarding approval of the Agreement and the Share Exchange before Nidec shareholders at a General Meeting of Shareholders to be held no later than the day prior to the effective date of the Share Exchange. 

 

	2.	Nidec Copal shall put the necessary resolutions regarding approval of the Agreement and the Share Exchange before Nidec Copal shareholders at the General Meeting of
Shareholders to be held on June 19, 2013. This arrangement can be altered by mutual agreement between Nidec and Nidec Copal if it is deemed necessary to ensure that the Share Exchange proceeds. 

Article 7    Sale of Treasury Stock 
 As of the Cut-Off Date, Nidec Copal shall cancel all shares of treasury stock it owns as of the Cut-Off Date (including any treasury shares acquired from dissenting shareholders exercising their appraisal
rights in connection with the Share Exchange, as stipulated in Article 785 Paragraph 1 of the Companies Act) by resolution of a meeting of its Board of Directors to be held no later than the day prior to the effective date of the Share Exchange.

 Article 8    Management of Corporate Assets 
 During the period from the date of the Agreement to the day prior to the effective date of the Share Exchange, Nidec and Nidec Copal shall execute their respective business operations and manage their
respective financial assets in good faith, and shall seek to gain prior mutual agreement for any actions with a significant material impact on these financial assets or related rights and obligations. 

  
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 Article 9    Changes to the Share Exchange and Cancellation of the Agreement 

During the period from the date of the Agreement to the day prior to the effective date of the Share Exchange, based on mutual discussion, Nidec or Nidec
Copal may seek to change the terms of or cancel the Agreement if there are any materially adverse changes in the financial assets or business condition of either party, or if any severe hindrance to the implementation of the Share Exchange or other
circumstances obstructing achievement of the objectives of the Agreement should arise. 
 Article 10    Validity of the
Agreement 
 The Agreement shall be invalidated if the parties fail to gain the necessary consent for the Share Exchange based on the approval
procedures stipulated in Article 6, or otherwise fail to gain the requisite permission, registration or other form of regulatory approval from the reasonable authorities. 
 Article 11    Negotiation of Terms 
 In accordance with the purposes of the
Agreement, any terms required for the Share Exchange other than those already stipulated in the Agreement shall be determined based on negotiations conducted in good faith between the parties. 

Two copies of the Agreement shall be prepared, and representatives of both parties shall sign each copy, with each party retaining a single signed copy
of the Agreement. 
  

			
	April 23, 2013	 	
		
		 	Shigenobu Nagamori
		
		 	Chairman of the Board, President & CEO
		 	Nidec Corporation
		 	338 Tonoshiro-cho, Kuze, Minami-ku, Kyoto,
		 	Japan
		
		 	Shigeru Izawa
		
		 	President
		 	Nidec Copal Corporation
		 	2-18-10 Shimura, Itabashi-ku, Tokyo Japan

  
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