<SEC-DOCUMENT>0001104659-14-009473.txt : 20140213
<SEC-HEADER>0001104659-14-009473.hdr.sgml : 20140213
<ACCEPTANCE-DATETIME>20140213090914
ACCESSION NUMBER:		0001104659-14-009473
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20140213
DATE AS OF CHANGE:		20140213

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARCA biopharma, Inc.
		CENTRAL INDEX KEY:			0000907654
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				363855489
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-51477
		FILM NUMBER:		14603276

	BUSINESS ADDRESS:	
		STREET 1:		11080 CIRCLEPOINT ROAD
		STREET 2:		SUITE 140
		CITY:			WESTMINSTER
		STATE:			CO
		ZIP:			80020
		BUSINESS PHONE:		720-940-2200

	MAIL ADDRESS:	
		STREET 1:		11080 CIRCLEPOINT ROAD
		STREET 2:		SUITE 140
		CITY:			WESTMINSTER
		STATE:			CO
		ZIP:			80020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVELO INC
		DATE OF NAME CHANGE:	20030203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HYSEQ INC
		DATE OF NAME CHANGE:	19970610

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Atlas Venture Fund VII L P
		CENTRAL INDEX KEY:			0001346450
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		890 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		7816221700

	MAIL ADDRESS:	
		STREET 1:		890 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>a14-5626_2sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>


<html>
<head>

  </head>
<body bgcolor="white" lang="EN-US">
<div>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.06%;">
<p style="margin:0in 0in .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="53%" valign="top" style="padding:0in .7pt .7pt .7pt;width:53.16%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">UNITED   STATES</font></b></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.06%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="53%" valign="top" style="padding:0in .7pt .7pt .7pt;width:53.16%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SECURITIES   AND EXCHANGE COMMISSION</font></b></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.06%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="53%" valign="top" style="padding:0in .7pt .7pt .7pt;width:53.16%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington,   D.C. 20549</font></b></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.06%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="53%" valign="top" style="padding:0in .7pt .7pt .7pt;width:53.16%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt .7pt .7pt;width:23.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SCHEDULE 13G</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Rule 13d-102)</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<div align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">
<hr size="1" width="25%" noshade color="black" align="center">
</font></b></div>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Information Statement Pursuant to Rules 13d-1 and 13d-2</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Under the Securities Exchange Act of 1934</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Amendment No. 4)*</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">ARCA BIOPHARMA, INC.</font></b></p>
</div>
<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name of Issuer)</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Common stock,&#160; $0.001 </font></b></p>
</div>
<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Title of Class of Securities)</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">00211Y100</font></b></p>
</div>
<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(CUSIP Number)</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">December 31, 2013</font></b></p>
</div>
<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Date of Event Which Requires Filing of this Statement)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box to designate the rule pursuant to which this Schedule is filed: </font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="width:100.0%;">
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(b)</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(c)</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(d)</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">*The remainder of this cover page shall be filled out for a reporting person&#146;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information required on the remainder of this cover page shall not be deemed to be &#147;filed&#148; for the purpose of Section 18 of the Securities Exchange Act of 1934 (&#147;Act&#148;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\107983\14-5626-2\task6532410\5626-2-ba.htm',USER='107983',CD='Feb 12 07:59 2014' -->


<br clear="all" style="page-break-before:always;">
<div style="font-family:Times New Roman;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.02%;">
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   1(a).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name of Issuer</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The name of the issuer to which this filing on Schedule 13G/A relates   is ARCA biopharma, Inc. (the &#147;Company&#148;).</font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   1(b).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Address of Issuer&#146;s   Principal Executive Offices</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The principal executive offices of the Company are located at 11080   CirclePoint Road, Suite 140, Westminster, CO 80020.</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   2(a).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name of Person Filing</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This Statement is being filed on behalf of Atlas Venture Fund VII, L.P.   (&quot;Atlas VII&quot;). Atlas Venture Associates VII, L.P. (&quot;AVA VII   LP&quot;) is the sole general partner of Atlas VII.&nbsp; Atlas Venture Associates VII, Inc.   (&quot;AVA VII Inc.&quot;) is the sole general partner of AVA VII LP.&nbsp; Jean-Francois Formela, Peter Barrett and   Jeff Fagnan is each a director of AVA VII Inc. (the   &quot;Directors&quot;).&nbsp; </font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   2(b).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Address of Principal   Business Office or, if none, Residence</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The principal business address of each of Atlas VII, AVA VII LP, AVA   VII Inc. and the Directors is 25 First Street, Suite 303, Cambridge MA 02141.</font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   2(c).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Citizenship</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Each of Atlas VII, AVA VII LP and AVA VII Inc. is organized under the   laws of Delaware.&nbsp; Mr. Formela is a   citizen of France.&nbsp; Mr. Barrett is a   citizen of the United States.&nbsp; Mr. Fagnan   is a citizen of the United States.</font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   2(d).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title of Class of   Securities</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The class of equity securities of the Company to which this filing on   Schedule 13G/A relates is Common Stock, par value $0.001 (&#147;Common Stock&#148;).</font></p>    </td>   </tr>
<tr>
<td width="12%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.74%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item   2(e).</font></b></p>    </td>
<td width="87%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP Number</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The CUSIP number of the Company&#146;s Common Stock is 00211Y100.</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="8%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 3.</font></b></p>    </td>
<td width="91%" colspan="5" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.64%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">If this statement is filed pursuant   to &#167;&#167; 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is   a:&nbsp; </font></b><font size="2" style="font-size:10.0pt;">Not applicable.</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font></p>    </td>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Broker or dealer   registered under section 15 of the Act (15 U.S.C. 78o).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font></p>    </td>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Bank as defined in section   3(a)(6) of the Act (15 U.S.C. 73c).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font></p>    </td>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Insurance company as   defined in section 3(a)(19) of the Act (15 U.S.C. 78c).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Investment company   registered under section 8 of the Investment Company Act of 1940 (15 U.S.C.   80a-8).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An investment adviser in   accordance with &#167;13d-1(b)(1)(ii)(E).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(f)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An employee benefit plan   or endowment fund in accordance with &#167;240.13d-1(b)(1)(ii)(F).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(g)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A parent holding company   or control person in accordance with &#167;240.13d-1(b)(1)(ii)(G).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(h)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A savings association as   defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)</font></p>    </td>
<td width="3%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A church plan that is   excluded from the definition of an investment company under section 3(c)(14)   of the Investment Company Act of 1940 (15 U.S.C. 80a-3).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.44%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(j)</font></p>    </td>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.72%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Group, in accordance with   &#167;240.13d-1(b)(1)(ii)(J).</font></p>    </td>   </tr>
<tr>
<td width="8%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.36%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.14%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="7%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:7.02%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.48%;">
<p style="margin:3.0pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">If this statement is filed pursuant   to &#167;240.13d-1(c), check this box.</font></b></p>    </td>   </tr>
<tr height="0">
<td width="63" style="border:none;"></td>
<td width="23" style="border:none;"></td>
<td width="9" style="border:none;"></td>
<td width="15" style="border:none;"></td>
<td width="28" style="border:none;"></td>
<td width="610" style="border:none;"></td>   </tr> </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2<a name="PB_2_074242_7056"></a></font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
<!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\107982\14-5626-2\task6533165\5626-2-bc.htm',USER='107982',CD='Feb 12 12:06 2014' -->

<br clear="all" style="page-break-before:always;">
<div>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ownership</font></b></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>
<tr>
<td width="9%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4(a).</font></b></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amount beneficially owned</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">As of the close of business on December 31, 2013, Atlas VII is the   record holder of 263,256 shares of Common Stock and 39,672 warrants to   purchase shares of Common Stock (the &quot;Atlas Shares&quot;).&nbsp; AVA VII LP is the sole general partner of   Atlas VII.&nbsp; AVA VII Inc. is the sole   general partner of AVA VII LP.&nbsp; Messrs.   Formela, Barrett and Fagnan are the directors of AVA VII Inc.&nbsp; No person other than the respective owner   referred to herein of the Atlas Shares is known to have the right to receive   or the power to direct the receipt of dividends from or the proceeds from the   sale of such Atlas Shares.&nbsp; Each of   Atlas VII, AVA VII LP, AVA VII Inc. and the Directors disclaim beneficial   ownership of the Atlas Shares except for such shares, if any, such person   holds of record.</font></p>    </td>   </tr>
<tr>
<td width="9%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4(b).</font></b></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Percent of class</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">As of the close of business on December 31, 2013 Atlas VII was the   beneficial owner of 1.93% of the Common Stock. </font></p>    </td>   </tr>
<tr>
<td width="9%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4(c).</font></b></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Number of shares as to   which the person has:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="border:none;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)</font></p>    </td>
<td width="80%" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole power to vote or to direct   the vote:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">0</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(ii)</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared power to vote or   direct the vote:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">302,928 shares</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iii)</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole power to dispose or   direct the disposition of:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">0</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iv)</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared power to dispose or   direct the disposition of:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">302,928 shares</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ownership of Five Percent or Less   of a Class</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Atlas VII has ceased to own beneficially more than   5% of the outstanding Common Stock of the Company.</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_074248_5335"></a></font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
<!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\107982\14-5626-2\task6533165\5626-2-bc.htm',USER='107982',CD='Feb 12 12:06 2014' -->


<br clear="all" style="page-break-before:always;">
<div>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">All other items reported on the Schedule 13G dated as of February&nbsp;11, 2013 and filed on behalf of the Filing Persons with respect to the Common Stock of ARCA biopharma,&nbsp;Inc. remain unchanged.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated:   February&nbsp;13, 2014</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ATLAS   VENTURE FUND VII, L.P.</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:   Atlas Venture Associates VII, L.P., its general partner</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:   Atlas Venture Associates VII,&nbsp;Inc., its general partner</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.92%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="46%" valign="top" style="padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.92%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/   Kristen Laguerre</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.92%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="46%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:   Kristen Laguerre</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.92%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="46%" valign="top" style="padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:   Vice President</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4<a name="PB_4_074339_3020"></a></font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
<!-- SEQ.=1,FOLIO='4',FILE='C:\JMS\107983\14-5626-2\task6532410\5626-2-be.htm',USER='107983',CD='Feb 12 08:00 2014' -->

</body>
</html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
