Exhibit














	
															
	AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
	1.   CONTRACT ID CODE
	PAGE   OF   PAGES

	1
	2
	 

	2.  AMENDMENT/MODIFICATION NO.
	3.  EFFECTIVE DATE
	4.  REQUISITION/PURCHASE REQ. NO.
	 5.  PROJECT NO. (if applicable)

	0040
	See Block 16C
	N/A.
	 

	6.  ISSUED BY
	CODE
	ASPR-BARDA
	7.  ADMINISTERED BY (If other than Item 6)


	CODE
	ASPR-BARDA02

	ASPR-BARDA
200 Independence Ave., S.W.
Room 640-G
Washington DC 20201


	ASPR-BARDA
330 Independence Ave, SW, Rm G640
Washington DC 20201



	8.  NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)
	x
	9A.  AMENDMENT OF SOLICITATION NO.

	

CHIMERIX, INC. 1377270
CHIMERIX, INC.   2505   MERIDIAN P
2505 MERIDIAN PKWY STE 340
DURHAM NC 277135246
	 
	 

	 9B.  DATED (SEE ITEM 11)

	 
	 

	x
	 10A.  MODIFICATION OF CONTRACT/ORDER NO.
 HHSO100201100013C

	 

	 10B.  DATED (SEE ITEM 13)
02/16/2011

	CODE
1377270
	FACILITY CODE
	 

	11.  THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

	o   The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers   o  is extended.    o is not extended
Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing Items 8 and 15, and returning ___________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers.  FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT 
THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by    
virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes    
reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

	12.  ACCOUNTING AND APPROPRIATION DATA (if required)
 N/A.                                                                                                                                                            

	13.  THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

	CHECK ONE
	A.   THIS CHANGE ORDER IS ISSUED PURSUANT TO:  (Specify authority)  THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

	 

	 
	B.   THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

	 
	C.   THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

	X
	D.   OTHER (Specify type of modification and authority)
Bilateral:  Mutual Agreement of the Parties.

	E.  IMPORTANT:   Contractor   o  is not.   x  is required to sign this document and return            0    copies to the issuing office.

	14.  DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

	Tax ID Number:   33-0903395
DUNS Number:   121785997


A. The purpose of this modification is to incorporate the following changes into the
contract:


1. The period of performance for Option 2/CLIN 0003 of Contract Number HHSO100201100013C
ONLY is hereby changed from 1 September 2014 through 30 June 2017 to 1 September 2014
Through 31 July 2017, at no additional cost to the Government.  The total amount and scope
Of Option 2/CLIN 0003 of Contract Number HHSO100201100013C remains unchanged.


 2. The period of performance for CLIN 0004 of Contract Number HHSO100201100013C ONLY is



	

Continued . . .
Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

	15A.  NAME AND TITLE OF SIGNER (Type or print)
	 16A.  NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

	Timothy W. Trost, SVP & CFO
	ETHAN J. MUELLER

	15B.  CONTRACTOR/OFFEROR
	15C.  DATE SIGNED
	16B.  UNITED STATES OF AMERICA
	16C.  DATE SIGNED

	   /s/ Timothy W. Trost
       (Signature of person authorized to sign)
	6/14/17
	   /s/ Ethan J. Mueller   
             (Signature of Contracting Officer)
	6/16/17




NSN 7540-01-152-8070    STANDARD FORM 30 (REV. 10-83)
Previous edition unusable    Prescribed by GSA
FAR (48 CFR) 53.243

















	
									
	CONTINUATION SHEET
	REFERENCE NO. OF DOCUMENT BEING CONTINUED
HHSO100201100013C/0040
	PAGE   OF

	2
	2

	NAME OF OFFEROR OR CONTACTOR
CHIMERIX, INC. 1377270

	ITEM NO.
(A)
	SUPPLIES/SERVICES
(B)
	QUANTITY
(C)
	UNIT
(D)
	UNIT PRICE
(E)
	AMOUNT
(F)

	 
	hereby changed from 11 September 2015 through 30 June 2017 to 11 September 2015
through 31 July 2017, at no additional cost to the Government.  The total amount and 
scope of CLIN 0004 of Contract Number HHSO100201100013C remains unchanged.


3. The total amount, scope and period of performance of all other CLINs that are 
currently being performed under the contract remain unchanged. This modification 
does not exercise any unexercised Option CLINs under the contract and does not 
authorize any performance of efforts under any unexercised Option CLINs under the 
contract. In addition, the total amount, scope and period of performance of all 
unexercised Option CLINs under the contract remain unchanged. This modification 
also confirms that all activities under the base period of performance CLIN 0001 
were completed as of 31 May 2013 and confirms that all activities under the Option 
l/CLIN 0002 period of performance were completed as of 30 April 2015.


B. This is a no cost bilateral modification. All other terms and conditions of
Contract Number HHSO100201100013C remain unchanged.








Period of Performance: 02/16/2011 to 07/31/2017




NSN 7540-01-152-8067                                          OPTIONAL FORM 336 (4-86)
     Sponsored by GSA
FAR (48 CFR) 53.110