<SEC-DOCUMENT>0001193125-15-291736.txt : 20150814
<SEC-HEADER>0001193125-15-291736.hdr.sgml : 20150814
<ACCEPTANCE-DATETIME>20150814160913
ACCESSION NUMBER:		0001193125-15-291736
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20150630
FILED AS OF DATE:		20150814
DATE AS OF CHANGE:		20150814

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ZAFGEN, INC.
		CENTRAL INDEX KEY:			0001374690
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				203857670
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36510
		FILM NUMBER:		151055820

	BUSINESS ADDRESS:	
		STREET 1:		175 PORTLAND STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114
		BUSINESS PHONE:		617-622-4003

	MAIL ADDRESS:	
		STREET 1:		175 PORTLAND STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ZAFGEN INC
		DATE OF NAME CHANGE:	20060906
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>d80865d10q.htm
<DESCRIPTION>FORM 10-Q
<TEXT>
<HTML><HEAD>
<TITLE>Form 10-Q</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington,&nbsp;D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>Form&nbsp;10-Q </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:12pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><B></B><FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT><B></B><B></B></TD>
<TD ALIGN="left" VALIGN="top"><B>QUARTERLY REPORT PURSUANT TO SECTION&nbsp;13 OR 15(d)&nbsp;OF THE SECURITIES EXCHANGE ACT OF 1934 </B></TD></TR></TABLE>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>For the quarterly period ended June&nbsp;30, 2015 </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>OR </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:12pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><B></B><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT><B></B><B></B></TD>
<TD ALIGN="left" VALIGN="top"><B>TRANSITION REPORT PURSUANT TO SECTION&nbsp;13 OR 15(d)&nbsp;OF THE SECURITIES EXCHANGE ACT OF 1934 </B></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>For the transition period from
<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> to
<U></U><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Commission file number: 001-36510 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>Zafgen,&nbsp;Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of registrant as specified in its charter) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="50%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="48%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>20-3857670</B></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"><B>(State or other jurisdiction of<BR>incorporation or organization)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(I.R.S. Employer<BR>Identification No.)</B></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>175 Portland Street, 4<SUP STYLE="font-size:85%; vertical-align:top">th</SUP> Floor </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Boston, Massachusetts 02114 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Address of principal executive office) (Zip Code) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code: (617)&nbsp;622-4003 </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant (1)&nbsp;has filed all reports required to be filed by Section&nbsp;13 or 15(d)&nbsp;of the
Securities Exchange Act of 1934 during the preceding 12&nbsp;months (or for such shorter period that the registrant was required to file such reports), and (2)&nbsp;has been subject to such filing requirements for the past
90&nbsp;days.&nbsp;&nbsp;&nbsp;&nbsp;Yes&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;&nbsp; <FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive
Data File required to be submitted and posted pursuant to Rule&nbsp;405 of Regulation S-T (&#167; 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).&nbsp;&nbsp;&nbsp;&nbsp;Yes&nbsp;&nbsp; <FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the Exchange Act. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="16%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="60%"></TD>
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<TD WIDTH="20%"></TD>
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<TD WIDTH="1%"></TD></TR>


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<TD VALIGN="bottom">Large&nbsp;accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">Non-accelerated filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT>&nbsp;&nbsp;(Do not check if a smaller reporting company)</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Smaller&nbsp;reporting&nbsp;company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a shell company (as defined in Rule&nbsp;12b-2 of the
Exchange Act).&nbsp;&nbsp;&nbsp;&nbsp;Yes&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, there were 27,123,465 shares of the registrant&#146;s Common Stock, $0.001 par value per share, outstanding. </P>
<P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>

<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>FORWARD-LOOKING STATEMENTS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Quarterly Report on Form 10-Q contains forward-looking statements that involve risks and uncertainties. We make such forward-looking
statements pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. All statements other than statements of historical facts contained in this Quarterly Report on
Form&nbsp;10-Q are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as &#147;may,&#148; &#147;will,&#148; &#147;should,&#148; &#147;expects,&#148; &#147;intends,&#148; &#147;plans,&#148;
&#147;anticipates,&#148; &#147;believes,&#148; &#147;estimates,&#148; &#147;predicts,&#148; &#147;potential,&#148; &#147;continue&#148; or the negative of these terms or other comparable terminology. These forward-looking statements include, but are
not limited to, statements about: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the accuracy of our estimates regarding expenses, future revenues and capital requirements; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our plans to develop and commercialize beloranib as a treatment for obesity that is a co-morbidity of an underlying rare condition such as Prader Willi syndrome; or hypothalamic injury-associated obesity, including
craniopharyngioma-associated obesity; or severe obesity in the general population; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our ability to advance beloranib into pivotal trials, and successfully complete such clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">regulatory developments in the United States and foreign countries; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the performance of our third-party manufacturers and clinical research organizations; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our ability to obtain and maintain intellectual property protection for our proprietary assets; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the size of the potential markets for beloranib and our ability to serve those markets; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the rate and degree of market acceptance of beloranib for any indication once approved; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our ability to obtain additional financing; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the success of competing products that are or become available for the indications that we are pursuing; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the loss of key scientific or management personnel; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">other risks and uncertainties, including those listed under Part II, Item&nbsp;1A. Risk Factors. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any forward-looking statements in this Quarterly Report on Form 10-Q reflect our current views with respect to future events or to our future
financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or
implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed under Part II, Item&nbsp;1A. Risk Factors and elsewhere in this Quarterly
Report on Form&nbsp;10-Q. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason,
even if new information becomes available in the future. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Quarterly Report on Form 10-Q also contains estimates, projections and
other information concerning our industry, our business, and the markets for certain diseases, including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Information that is based on
estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances reflected in this information. Unless otherwise
expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry, medical and general publications, government
data and similar sources. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>


<p Style='page-break-before:always'>
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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="toc"></A>Zafgen, Inc. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>INDEX </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="6" ALIGN="center"><B><A HREF="#tx80865_1">PART&nbsp;I &#150; FINANCIAL INFORMATION </A></B></TD>
<TD VALIGN="top"><B><A HREF="#tx80865_1"></A>&nbsp;&nbsp;</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;1.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_2">Financial Statements (unaudited)</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_3">Condensed Consolidated Balance Sheets as of June&nbsp;30, 2015 and December&nbsp;31, 2014</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_4">Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and six months ended June&nbsp;30,
 2015 and 2014</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_5">Condensed Consolidated Statements of Cash Flows for the six months ended June&nbsp;30, 2015 and
2014</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_6">Notes to Condensed Consolidated Financial Statements</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;2.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_7">Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;3.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_8">Quantitative and Qualitative Disclosures About Market Risk</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">25</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;4.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_9">Management&#146;s Evaluation of our Disclosure Controls and Procedures</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">25</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8" COLSPAN="7"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="6" ALIGN="center"><B><A HREF="#tx80865_10">PART II &#150; OTHER INFORMATION </A></B></TD>
<TD VALIGN="top"><B><A HREF="#tx80865_10"></A>&nbsp;&nbsp;</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;1.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_11">Legal Proceedings</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;1A.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_12">Risk Factors</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;2.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_13">Unregistered Sales of Equity Securities and Use of Proceeds</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">51</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Item&nbsp;6.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_14">Exhibits</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">51</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8" COLSPAN="3"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx80865_15"><B>Signatures </B></A><B></B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">52</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_1"></A>PART&nbsp;I &#151; FINANCIAL INFORMATION </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_2"></A>Item&nbsp;1.&nbsp;Financial Statements </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx80865_3"></A>Zafgen,&nbsp;Inc. </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Condensed Consolidated Balance Sheets </B></P>
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(In thousands, except share and per share data) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Unaudited) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="82%"></TD>
<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>June&nbsp;30,<BR>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>December&nbsp;31,<BR>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Assets</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Current assets:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash and cash equivalents</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">83,573</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">58,103</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">136,547</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">57,359</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Tax incentive receivable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">367</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">391</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Prepaid expenses and other current assets</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,143</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,345</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total current assets</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">221,630</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">117,198</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Property and equipment, net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">215</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">79</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Tax incentive receivable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">673</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other assets</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">84</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">242</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total assets</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">222,602</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">117,519</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Liabilities and Stockholders&#146; Equity</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Current liabilities:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accounts payable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">4,297</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,348</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,441</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,172</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Notes payable, current</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,820</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,381</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total current liabilities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">11,558</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6,901</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Notes payable, net of discount, long-term</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,851</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6,177</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total liabilities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16,409</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">13,078</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commitments and contingencies (Note 7)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Stockholders&#146; equity:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Preferred stock; $0.001 par value; 5,000,000 shares authorized at June&nbsp;30, 2015 and December&nbsp;31, 2014; no shares issued and
outstanding at June&nbsp;30, 2015 and December&nbsp;31, 2014</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Common stock, $0.001 par value; 115,000,000 shares authorized at June&nbsp;30, 2015 and December&nbsp;31, 2014; 27,117,822 and
22,879,160 shares issued and outstanding at June&nbsp;30, 2015 and December&nbsp;31, 2014, respectively</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">23</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Additional paid-in capital</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">342,839</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">209,838</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accumulated deficit</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(136,613</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(105,385</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accumulated other comprehensive loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(60</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(35</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total stockholders&#146; equity</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">206,193</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">104,441</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total liabilities and stockholders&#146; equity</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">222,602</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">117,519</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">The accompanying notes are an integral part of these condensed consolidated financial statements. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx80865_4"></A>Zafgen,&nbsp;Inc. </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Condensed Consolidated Statements of Operations and Comprehensive Loss </B></P>
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(In thousands, except share and per share data) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Unaudited) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
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<TD></TD>
<TD></TD>
<TD></TD>
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<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Three&nbsp;Months&nbsp;Ended</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>June&nbsp;30,</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Six&nbsp;Months&nbsp;Ended</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>June&nbsp;30,</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Revenue</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Operating expenses:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Research and development</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12,526</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,695</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">22,741</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7,970</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">General and administrative</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,084</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,291</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">8,109</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,537</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total operating expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17,610</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,986</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">30,850</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">10,507</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Loss from operations</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(17,610</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(5,986</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(30,850</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(10,507</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other income (expense):</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest income</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">63</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">102</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(213</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(443</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(426</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(445</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Foreign currency transaction gains (losses), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">28</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(54</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">93</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total other income (expense), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(146</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(414</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(378</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(351</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(6,400</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accretion of redeemable convertible preferred stock to redemption value</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(43</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(92</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss attributable to common stockholders</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,443</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,950</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss per share attributable to common stockholders, basic and diluted</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(0.66</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(2.96</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(1.19</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(7.51</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Weighted average common shares outstanding, basic and diluted</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27,011,960</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,178,465</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,316,619</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,457,931</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Comprehensive loss:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,400</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other comprehensive loss:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Unrealized loss on marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(21</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(25</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total other comprehensive loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(21</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(25</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total comprehensive loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,777</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,400</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,253</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">The accompanying notes are an integral part of these condensed consolidated financial statements. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx80865_5"></A>Zafgen, Inc. </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Condensed Consolidated Statements of Cash Flows </B></P>
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(In thousands) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Unaudited) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="84%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six Months Ended<BR>June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Cash flows from operating activities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Adjustments to reconcile net loss to net cash used in operating activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Stock-based compensation expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,996</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">444</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Non-cash interest expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">33</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">19</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Depreciation expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Unrealized foreign currency transaction losses (gains)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">38</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(64</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Premium on purchases of marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(675</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Amortization of premium on marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">377</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Changes in operating assets and liabilities:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:9.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Prepaid expenses and other current assets</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">202</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(1,143</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:9.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Tax incentive receivable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(687</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">459</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:9.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accounts payable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,014</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">97</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:9.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,442</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">791</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net cash used in operating activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(25,474</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(10,249</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Cash flows from investing activities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Proceeds from maturities of marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">79,717</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Purchases of marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(158,632</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Purchases of property and equipment</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(150</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(11</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Deposits for leased property</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(57</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net cash used in investing activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(79,065</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(68</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Cash flows from financing activities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">442</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Proceeds from issuance of notes payable, net of issuance costs</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7,386</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Payments of debt offering costs</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(49</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Proceeds from public offerings, net of commissions and underwriting discounts</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">130,044</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">102,672</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Payments of public offering costs</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(473</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(1,418</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Proceeds from exercise of common stock options and issuance of common stock pursuant to employee stock purchase plan</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">438</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net cash provided by financing activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">130,009</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">109,033</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Net increase in cash and cash equivalents</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">25,470</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">98,716</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash and cash equivalents at beginning of period</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">58,103</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">35,517</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash and cash equivalents at end of period</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">83,573</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">134,233</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Supplemental disclosure of non-cash investing and financing activities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accretion of redeemable convertible preferred stock to redemption values</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">92</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Deferred offering costs included in accounts payable and accrued expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">894</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Conversion of redeemable preferred stock to common stock</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">104,331</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Supplemental disclosure of cash flow information:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash paid for interest</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">304</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">103</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">The accompanying notes are an integral part of these condensed consolidated financial statements. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>


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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx80865_6"></A>Zafgen,&nbsp;Inc. </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Notes to the Condensed Consolidated Financial Statements </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Amounts in thousands, except share and per share data) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Unaudited) </B></P>
 <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>1. Nature of the Business and Basis of Presentation </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Zafgen, Inc. (the &#147;Company&#148;) was incorporated on November&nbsp;22, 2005 under the laws of the State of Delaware.
The Company is a biopharmaceutical company dedicated to significantly improving the health and well-being of patients affected by obesity and complex metabolic disorders. Zafgen is focused on developing novel therapeutics that treat the underlying
biological mechanisms through the Methionine Aminopeptidase 2 (&#147;MetAP2&#148;) pathway. Beloranib, the Company&#146;s lead product candidate, is a novel, first-in-class, twice-weekly subcutaneous injection being developed for the treatment of
multiple indications, including severe obesity in two rare diseases, Prader-Willi syndrome and obesity caused by hypothalamic injury, including craniopharyngioma-associated obesity; and severe obesity in the general population. Zafgen is also
developing ZGN-839, a liver-targeted MetAP2 inhibitor, for the treatment of nonalcoholic steatohepatitis (&#147;NASH&#148;) and abdominal obesity, as well as other second-generation MetAP2 inhibitors. Since its inception, the Company has devoted
substantially all of its efforts to research and development, recruiting management, acquiring operating assets and raising capital. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
Company is subject to risks common to companies in the biotechnology industry including, but not limited to, new technological innovations, protection of proprietary technology, dependence on key personnel, compliance with government regulations and
the need to obtain additional financing. Product candidates currently under development will require significant additional research and development efforts, including extensive pre-clinical and clinical testing and regulatory approval, prior to
commercialization. These efforts require significant amounts of additional capital, adequate personnel infrastructure, and extensive compliance-reporting capabilities. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company&#146;s product candidates are all in the development stage. There can be no assurance that the Company&#146;s research and
development will be successfully completed, that&nbsp;adequate protection for the Company&#146;s intellectual property will be obtained, that any products developed&nbsp;will obtain necessary government regulatory approval or that any approved
products will be&nbsp;commercially viable. Even if the Company&#146;s product development efforts are successful, it is uncertain when, if ever, the Company will generate significant revenue from product sales. The Company operates in an environment
of rapid change in technology and&nbsp;substantial competition from pharmaceutical and biotechnology companies. In addition, the&nbsp;Company is dependent upon the services of its employees and consultants. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries Zafgen Securities Corporation,
Zafgen Australia Pty Limited, and Zafgen Animal Health, LLC. All significant intercompany balances and transactions have been eliminated. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On June&nbsp;24, 2014, the Company completed an initial public offering (&#147;IPO&#148;) of its common stock, which resulted in the sale of
6,900,000 shares at a price of $16.00 per share. The Company received net proceeds from the IPO of approximately $102,672 based upon the price of $16.00 per share and after deducting underwriting discounts and commissions paid by the Company. The
Company also incurred offering costs of $2,508 related to the IPO. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On January&nbsp;28, 2015, the Company completed a follow-on offering
of its common stock, which resulted in the sale of 3,942,200 shares at a price of $35.00 per share. The Company received net proceeds from the follow-on offering of $130,044 based upon the price of $35.00 per share after deducting underwriting
discounts and commissions. The Company also incurred offering costs of $473 related to the follow-on offering. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Unaudited Interim Financial Information
</B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The condensed consolidated balance sheet at December&nbsp;31, 2014 was derived from audited financial statements, but does not include
all disclosures required by GAAP. The accompanying unaudited condensed consolidated financial statements as of June&nbsp;30, 2015 and for the three and six months ended June&nbsp;30, 2015 and 2014, have been prepared by the Company, pursuant to the
rules and regulations of the SEC for interim financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and
regulations. However, the Company believes that the disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the Company&#146;s audited
consolidated financial statements and the notes thereto for the year ended December&nbsp;31, 2014, included in the Company&#146;s Annual Report on Form 10-K for the year ended December&nbsp;31, 2014, on file with the SEC. In the opinion of
management, all adjustments, consisting only of normal recurring adjustments necessary for a fair presentation of the Company&#146;s condensed consolidated financial position as of June&nbsp;30, 2015 and condensed consolidated
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>


<p Style='page-break-before:always'>
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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
results of operations and cash flows for the three and six months ended June&nbsp;30, 2015 and 2014 have been made. The results of operations for the three and six months ended June&nbsp;30, 2015
are not necessarily indicative of the results of operations that may be expected for the year ending December&nbsp;31, 2015. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>2. Summary of Significant Accounting Policies </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Use of Estimates </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
preparation of financial statements in conformity with GAAP requires management to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date
of the consolidated financial statements, and the reported amounts of expenses during the reporting periods. Significant estimates, assumptions and judgments reflected in these condensed consolidated financial statements include, but are not limited
to, the accrual of research and development expenses, the valuation of common stock prior to the IPO and the valuation of stock-based awards. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. Actual
results could differ from the Company&#146;s estimates. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Fair Value Measurements </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following tables present information about the Company&#146;s financial assets that have been measured at fair value at June&nbsp;30, 2015
and December&nbsp;31, 2014, and indicate the fair value of the hierarchy of the valuation inputs utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for
identical assets or liabilities. Fair value determined by Level 2 inputs utilize observable inputs other than Level 1 prices, such as quoted prices, for similar assets or liabilities, quoted market prices in markets that are not active or other
inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities. Fair values determined by Level 3 inputs are unobservable data points for the asset or liability, and
includes situations where there is little, if any, market activity for the asset or liability. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following tables summarize the
Company&#146;s cash equivalents and marketable securities as of June&nbsp;30, 2015 and December&nbsp;31, 2014: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="60%"></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="14" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>June&nbsp;30, 2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Total</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Quoted<BR>Prices&nbsp;in<BR>Active<BR>Markets<BR>(Level&nbsp;1)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Significant<BR>Other<BR>Observable<BR>Inputs<BR>(Level&nbsp;2)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Significant<BR>Unobservable<BR>Inputs<BR>(Level&nbsp;3)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Cash equivalents:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Money market funds</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">61,133</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">61,133</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commercial paper</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total cash equivalents</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">63,133</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">61,133</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Marketable securities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">60,831</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">60,831</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">U.S. government securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">49,239</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">49,239</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commercial paper</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,477</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,477</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">136,547</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">136,547</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total cash equivalents and marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">199,680</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">61,133</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">138,547</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">During the three and six months ended June&nbsp;30, 2015, there were no transfers between Level 1 and Level 2
financial assets. The carrying amounts reflected in the condensed consolidated balance sheets for tax incentive receivable, accounts payable, and accrued expenses approximate fair value due to their short-term maturities. The carrying value of the
Company&#146;s outstanding notes payable approximates fair value (a Level 2 fair value measurement), reflecting discount rates currently available to the Company. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>


<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="62%"></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="14" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>December&nbsp;31, 2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Total</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Quoted<BR>Prices&nbsp;in<BR>Active<BR>Markets<BR>(Level&nbsp;1)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Significant<BR>Other<BR>Observable<BR>Inputs<BR>(Level&nbsp;2)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Significant<BR>Unobservable<BR>Inputs<BR>(Level&nbsp;3)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Cash equivalents:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Money market funds</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">14,742</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">14,742</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">U.S. government securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27,767</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27,767</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total cash equivalents</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">42,509</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14,742</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27,767</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Marketable securities:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">U.S. government securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">34,191</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">34,191</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">22,168</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">22,168</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commercial paper</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">57,359</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">57,359</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total cash equivalents and marketable securities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">99,868</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">14,742</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">85,126</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Marketable Securities </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following table summarizes the Company&#146;s marketable securities as of June&nbsp;30, 2015 and December&nbsp;31, 2014: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="62%"></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="14" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>June&nbsp;30, 2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom"><B>Assets:</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Amortized<BR>Cost</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Gross<BR>Unrealized<BR>Gains</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Gross<BR>Unrealized<BR>Losses</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Fair&nbsp;Value</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">57,396</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(48</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">57,348</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds (due after 1 year through 2 years)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,487</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(4</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,483</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">U.S. government securities (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">49,240</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(1</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">49,239</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commercial paper (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,484</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(7</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,477</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">136,607</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(60</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">136,547</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="64%"></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="14" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>December&nbsp;31, 2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom"><B>Assets:</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Amortized<BR>Cost</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Gross<BR>Unrealized<BR>Gains</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Gross<BR>Unrealized<BR>Losses</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Fair&nbsp;Value</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">U.S. government securities (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">34,200</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(9</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">34,191</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">18,716</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(18</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">18,698</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate bonds (due after 1 year through 2 years)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,478</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(8</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,470</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Commercial paper (due within 1 year)</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">57,394</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(35</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">57,359</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Income (Loss) Per Share </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the closing of the Company&#146;s IPO in June 2014, all of the Company&#146;s outstanding redeemable convertible preferred shares were
converted into shares of common stock. Prior to this conversion, the Company followed the two-class method when computing net income (loss) per share as the Company had issued shares that meet the definition of participating securities. The
two-class method determines net income (loss) per share for each class of common and participating securities according to dividends declared or accumulated and participation rights in undistributed earnings. The two-class method requires income
available to common stockholders for the period to be allocated between common and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed. The Company&#146;s redeemable
convertible preferred shares contractually entitled the holders of such shares to participate in dividends, but did not contractually require the holders of such shares to participate in losses of the Company. Accordingly, the two-class method did
not apply for periods in which the Company reported a net loss or a net loss attributable to common stockholders resulting from dividends or accretion related to its redeemable convertible preferred shares. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Basic net income (loss) per share attributable to common stockholders is computed by dividing the
net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding for the period. Diluted net income (loss) per share attributable to common stockholders is computed by dividing the diluted net income
(loss) attributable to common stockholders by the weighted average number of common shares, including potential dilutive common shares assuming the dilutive effect of outstanding stock options and unvested restricted common shares, as determined
using the treasury stock method. For periods in which the Company has reported net losses, diluted net loss per common share attributable to common stockholders is the same as basic net loss per common share attributable to common stockholders,
since dilutive common shares are not assumed to have been issued if their effect is antidilutive. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company reported a net loss
attributable to common stockholders for the three and six months ended June&nbsp;30, 2015 and 2014. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Basic and diluted net loss per share
attributable to common stockholders was calculated as follows: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="69%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>For&nbsp;the&nbsp;three&nbsp;months&nbsp;ended<BR>June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>For&nbsp;the&nbsp;six&nbsp;months&nbsp;ended<BR>June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Basic and diluted net loss per share attributable to common stockholders:</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Numerator:</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,400</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accretion of redeemable convertible preferred stock to redemption value</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(43</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(92</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:9.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss attributable to common stockholders</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,443</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,950</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Denominator:</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Weighted average of common shares outstanding, basic and diluted</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">27,011,960</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,178,465</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">26,316,619</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,457,931</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss per share attributable to common stockholders, basic and diluted</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(0.66</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(2.96</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(1.19</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(7.51</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following common stock equivalents outstanding (prior to consideration of the treasury stock method) as of
June&nbsp;30, 2015 and 2014, were excluded from the computation of diluted net loss per share for the three and six months ended June&nbsp;30, 2015 and 2014, because they had an anti-dilutive impact: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="76%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="76%"></TD>
<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>As of June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Options to purchase common stock</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,500,741</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,839,895</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Unvested restricted stock</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,903</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,503,644</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,839,895</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Recently Issued and Adopted Accounting Pronouncements </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In August 2014, the Financial Accounting Standards Board issued Accounting Standards Update No.&nbsp;2014-15, Presentation of Financial
Statements &#151; Going Concern (Subtopic 205-40). The new guidance addresses management&#146;s responsibility to evaluate whether there is substantial doubt about an entity&#146;s ability to continue as a going concern and to provide related
footnote disclosures. Management&#146;s evaluation should be based on relevant conditions and events that are known and reasonably knowable at the date that the financial statements are issued. The standard will be effective for the first interim
period within annual reporting periods beginning after December&nbsp;15, 2016. Early adoption is permitted. The Company is evaluating the effect that this guidance will have on its condensed consolidated financial statements. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>


 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>3. Accrued Expenses </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Accrued expenses consisted of the following: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="76%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="76%"></TD>
<TD VALIGN="bottom" WIDTH="7%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="7%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>June&nbsp;30,<BR>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>December&nbsp;31,<BR>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued research and development expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,542</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,180</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued payroll and related expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,256</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,239</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued professional fees</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">519</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">585</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accrued other</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">124</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">168</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">4,441</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">3,172</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>4. Notes Payable </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company has outstanding amounts due under a loan and security agreement with Oxford Finance LLC and Midcap Financial
(the &#147;Credit Facility&#148;) entered into in March 2014. All promissory notes issued under the Credit Facility are collateralized by substantially all of the Company&#146;s personal property, other than intellectual property. There are no
financial covenants associated with the debt facility; however, there are negative covenants restricting the Company&#146;s activities, including limitations on dispositions, mergers or acquisitions; encumbering or granting a security interest in
the Company&#146;s intellectual property; incurring indebtedness or liens; paying dividends; making certain investments; and certain other business transactions. As of June&nbsp;30, 2015 and December&nbsp;31, 2014, notes payable consist of the
following: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="76%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="76%"></TD>
<TD VALIGN="bottom" WIDTH="7%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="7%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>June&nbsp;30,<BR>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>December&nbsp;31,<BR>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Notes payable</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">7,500</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">7,500</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Less: current portion</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(2,820</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(1,381</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Notes payable, net of current portion</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,680</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6,119</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Debt discount, net of accretion</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(56</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(79</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accretion related to final payment</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">227</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">137</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Notes payable, net of discount, long term</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">4,851</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">6,177</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of June&nbsp;30, 2015, estimated future principal payments due are as follows: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="68%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="89%"></TD>
<TD VALIGN="bottom" WIDTH="6%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE="border-bottom:1.00pt solid #000000; width:95.55pt; font-size:8pt; font-family:Times New Roman"><B>Years Ending December&nbsp;31,</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2015</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,381</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2016</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,936</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2017</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,183</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">7,500</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the three months ended June&nbsp;30, 2015 and 2014, the Company recognized $213 and $443, respectively,
of interest expense related to the Credit Facility. During the six months ended June&nbsp;30, 2015 and 2014, the Company recognized $426 and $445, respectively, of interest expense related to the Credit Facility. The effective annual interest rate
of the outstanding debt under the Credit Facility is approximately 14%. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>5. Stockholders&#146; Equity </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In January 2015, the Company completed a follow-on offering resulting in the sale of 3,942,200 common shares at $35.00 per
share, including 514,200 shares related to the exercise of the over-allotment option by the underwriters. The Company received net proceeds from the follow-on offering of $130,044 based upon the price of $35.00 per share after deducting underwriting
discounts and commissions. The Company also incurred offering costs of $473 related to the follow-on offering. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>6. Stock-Based Awards </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company grants equity awards under its 2014 Stock Option and Incentive Plan and is authorized to issue common stock
under its 2014 Employee Stock Purchase Plan. The Company also has outstanding stock-based awards under its Amended and </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
Restated 2006 Stock Option Plan but is no longer granting awards under this plan. As of June&nbsp;30, 2015, 1,799,099 shares are available for grant under the 2014 Stock Option and Incentive
Plan, including 915,166 shares automatically added to the 2014 Stock Option and Incentive Plan on January&nbsp;1, 2015 as a result of a provision in the plan, and 262,136 shares are available for issuance to participating employees under the 2014
Employee Stock Purchase Plan. The Company recorded stock-based compensation expense related to stock options and restricted common stock in the following expense categories of its condensed consolidated statements of operations: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Three&nbsp;Months&nbsp;Ended<BR>June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six&nbsp;Months&nbsp;Ended<BR>June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Research and development</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">738</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">99</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,142</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">168</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">General and administrative</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,201</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">169</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,854</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">276</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,939</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">268</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,996</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">444</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:13%; font-size:10pt; font-family:Times New Roman">As of June&nbsp;30, 2015, the Company had an aggregate of $28,525 of unrecognized stock-based compensation
cost, which is expected to be recognized over a weighted average period of 3.5 years. As of June&nbsp;30, 2015, there were outstanding unvested service-based stock options held by nonemployees for the purchase of 13,552 shares of common stock. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>7. Commitments and Contingencies </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Leases </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company has
a lease for office space in Boston, Massachusetts, effective as of July&nbsp;28, 2014, with a term expiring July&nbsp;31, 2017 and an option to extend the lease for three additional years. In March 2015, the Company entered into an operating lease
for additional office space in Boston, Massachusetts, effective as of April&nbsp;15, 2015, with a term expiring on July&nbsp;31, 2017, and two options to extend the lease for three additional years each. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Future minimum lease payments for its operating lease as of June&nbsp;30, 2015 are as follows: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="91%"></TD>
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<TD></TD>
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<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE="border-bottom:1.00pt solid #000000; width:95.55pt; font-size:8pt; font-family:Times New Roman"><B>Years Ending December&nbsp;31,</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2015</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">163</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2016</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">335</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">2017</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">199</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">697</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the three months ended June&nbsp;30, 2015 and 2014, the Company recognized $79 and $27, respectively,
of rental expense related to office space. During the six months ended June&nbsp;30, 2015 and 2014, the Company recognized $137 and $52, respectively, of rental expense related to office space. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Intellectual Property Licenses </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
Company has acquired exclusive rights to develop patented compounds and related know-how for beloranib under licensing agreements with two third parties in the course of its research and development activities. The licensing rights obligate the
Company to make payments to the licensors for license fees, milestones, license maintenance fees and royalties. The Company is also responsible for patent prosecution costs. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of June&nbsp;30, 2015, the Company is obligated to make milestone payments of up to $12,250 upon reaching certain pre-commercialization
milestones, such as clinical trials and government approvals, and up to $12,500 upon reaching certain product commercialization milestones. Under one of the license agreements, the Company is also obligated to pay up to $1,250 with respect to each
subsequent licensed product, if any, that is a new chemical entity. In addition, the Company will owe single-digit royalties on sales of commercial products developed using these licensed technologies, if any. The Company is also obligated to pay to
the licensors a percentage of fees received if and when the Company sublicenses the technology. As of June&nbsp;30, 2015, the Company has not yet developed a commercial product using the licensed technologies and it has not entered into any
sublicense agreements for the technologies. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Indemnification Agreements </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, business partners,
and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into
indemnification agreements with members of its board of directors that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The
maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. To date, the Company has not incurred any material costs as a result of such indemnifications. The
Company does not believe that the outcome of any claims under indemnification arrangements will have a material effect on its financial position, results of operations or cash flows, and it has not accrued any liabilities related to such obligations
in its condensed consolidated financial statements as of June&nbsp;30, 2015. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>8. Retirement Plan </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company has a Savings Incentive Match Plan for employees. Under the terms of the plan, the Company contributes 2% of an
employee&#146;s annual base salary, up to a maximum of the annual Internal Revenue Service compensation limits, for all full-time employees. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the three months ended June&nbsp;30, 2015 and 2014, the Company recognized $34 and $13, respectively, of expense related to its
contributions to this plan. During the six months ended June&nbsp;30, 2015 and 2014, the Company recognized $79 and $26, respectively, of expense related to its contributions to this plan. </P>
 <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>9. Australia Research and Development Tax Incentive </B></P>
 <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company&#146;s wholly owned subsidiary, Zafgen Australia Pty Limited, which conducts core research and development
activities on behalf of the Company is eligible to receive a 45% refundable tax incentive for qualified research and development activities. For the three months ended June&nbsp;30, 2015 and 2014, $458 and $47, respectively, was recorded as a
reduction to research and development expenses in the condensed consolidated statements of operations. For the six months ended June&nbsp;30, 2015 and 2014, $687 and $73, respectively, was recorded as a reduction to research and development expenses
in the condensed consolidated statements of operations These amounts represented 45% of the Company&#146;s qualified research and development spending in Australia. The refund is denominated in Australian dollars and, therefore, the receivable is
re-measured into U.S. dollars as of each reporting date. For the three months ended June&nbsp;30, 2015 and 2014, the Company recorded in its condensed consolidated statements of operations unrealized foreign currency exchange gains (losses) of $(14)
and $22, respectively, related to this tax incentive receivable. For the six months ended June&nbsp;30, 2015 and 2014, the Company recorded in its condensed consolidated statements of operations unrealized foreign currency exchange gains (losses) of
$(38) and $64, respectively, related to this tax incentive receivable. As of June&nbsp;30, 2015 and December&nbsp;31, 2014, the Company&#146;s tax incentive receivable from the Australian government was $1,040 and $391, respectively. </P>

 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>


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<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B><A NAME="tx80865_7"></A>Item&nbsp;2.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations </B></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed
consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form&nbsp;10-Q and the audited consolidated financial statements and notes thereto and management&#146;s discussion and analysis of financial
condition and results of operations for the year ended December&nbsp;31, 2014 included in our Annual Report on Form 10-K for the year ended December&nbsp;31, 2014, filed with the SEC on March&nbsp;25, 2015. Some of the information contained in this
discussion and analysis or set forth elsewhere in this Quarterly Report on Form 10-Q, including information with respect to our plans and strategy for our business, includes forward looking statements that involve risks and uncertainties. As a
result of many factors, including those factors set forth in the &#145;&#145;Risk Factors&#146;&#146; section of this Quarterly Report on Form 10-Q, our actual results could differ materially from the results described, in or implied, by these
forward-looking statements. </I></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Our actual results and timing of certain events may differ materially from the results discussed,
projected, anticipated, or indicated in any forward-looking statements. We caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity, and the
development of the industry in which we operate may differ materially from the forward-looking statements contained in this Quarterly Report on Form 10-Q. In addition, even if our results of operations, financial condition and liquidity, and the
development of the industry in which we operate are consistent with the forward-looking statements contained in this Quarterly Report on Form 10-Q, they may not be predictive of results or developments in future periods. </I></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>The following information and any forward-looking statements should be considered in light of factors discussed elsewhere in this Quarterly
Report on Form 10-Q, including those risks identified under the Risk Factors section. </I></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>We caution readers not to place undue
reliance on any forward-looking statements made by us, which speak only as of the date they are made. We disclaim any obligation, except as specifically required by law and the rules of the SEC, to publicly update or revise any such statements to
reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements.
</I></P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Overview </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are a
biopharmaceutical company dedicated to significantly improving the health and well-being of patients affected by obesity and complex metabolic disorders. Beloranib, our lead product candidate, is a novel, first-in-class, twice-weekly subcutaneous
injection being developed for the treatment of multiple indications, including severe obesity in two rare diseases, Prader-Willi syndrome, or PWS, and hypothalamic injury-associated obesity, or HIAO, including craniopharyngioma-associated obesity;
and severe obesity in the general population. We are also developing ZGN-839, a liver-targeted MetAP2 inhibitor, for the treatment of nonalcoholic steatohepatitis, or NASH, and abdominal obesity, as well as other second-generation MetAP2 inhibitors.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Obesity is a complex medical disorder involving appetite dysregulation and altered lipid and energy metabolism that results in excessive
accumulation of fat tissue. Weight loss and hunger control are urgently needed for certain subpopulations of obese patients, in which obesity is life-threatening and a co-morbidity of an underlying condition such as PWS and HIAO that, while rare,
occurs most commonly as a consequence of treatment for craniopharyngioma and other mid-brain tumors. PWS and HIAO are characterized by uncontrollable hunger resulting from damage to or impaired functioning of the hypothalamus, an area of the brain
responsible for many functions including the neurophysiological drive to eat. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Since our inception in November 2005, we have devoted
substantially all of our resources to developing beloranib, ZGN-839, and second-generation MetAP2 inhibitors, building our intellectual property portfolio, developing our supply chain, business planning, raising capital, and providing general and
administrative support for these operations. Prior to our initial public offering, or IPO, in June 2014, we funded our operations primarily through sales of redeemable convertible preferred stock and, to a lesser extent, through the issuances of
convertible promissory notes. From our inception through December&nbsp;31, 2014, we have received gross proceeds of $104.0&nbsp;million from such transactions. During June 2014, we completed our IPO with net proceeds of $102.7 million after
deducting underwriting discounts and commissions paid by us. We also incurred offering costs of $2.5&nbsp;million related to the IPO. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On
January&nbsp;28, 2015, we completed a follow-on offering of our common stock, which resulted in the sale of 3,942,200 shares at a price of $35.00 per share. We received net proceeds from the follow-on offering of $130.0&nbsp;million based upon the
price of $35.00 per share and after deducting underwriting discounts and commissions. We also incurred offering costs of $0.5 million related to the follow-on offering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have never generated any revenue and have incurred net losses in each year since our inception. We have an accumulated deficit of
$136.6&nbsp;million as of June&nbsp;30, 2015. Our net loss was $31.2 million for the six months ended June&nbsp;30, 2015 and $36.5 million for the year ended December&nbsp;31, 2014. These losses have resulted principally from costs incurred in
connection with in-licensing our product candidates, research and development activities and general and administrative costs associated with our operations. We expect to incur significant expenses and increasing operating losses for the foreseeable
future. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">14 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We expect that our expenses will increase substantially in connection with our ongoing
activities, as we: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for obesity and hyperphagia in patients with PWS through our Phase&nbsp;3 clinical trials; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for patients with HIAO; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">initiate Investigational New Drug Application, or IND, enabling studies and clinical development of ZGN-839 and our second-generation Methionine Aminopeptidase 2, or MetAP2, inhibitors; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for severe obesity in the general population through a Phase 2b clinical trial; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seek to identify additional indications for beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seek to obtain regulatory approvals for our product candidates; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">add operational, financial and management information systems; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">add personnel, including personnel to support our product development and future commercialization; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">maintain, leverage and expand our intellectual property portfolio. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As a result, we will need
additional financing to support our continuing operations. Until such time that we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of public or private equity or debt financings
or other sources, which may include collaborations with third parties. Arrangements with collaborators or others may require us to relinquish rights to certain of our technologies or product candidates. In addition, we may never successfully
complete development of any of our product candidates, obtain adequate patent protection for our technology, obtain necessary regulatory approval for our product candidates or achieve commercial viability for any approved product candidates.
Adequate additional financing may not be available to us on acceptable terms, or at all. Our failure to raise capital as and when needed would have a negative impact on our financial condition and our ability to pursue our business strategy. We will
need to generate significant revenue to achieve profitability, and we may never do so. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We expect that our existing cash and cash
equivalents and marketable securities as of June&nbsp;30, 2015 will enable us to fund our operating expenses and capital expenditure requirements for at least the next 18&nbsp;months. See &#147;&#151;Liquidity and Capital Resources.&#148; </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Financial Operations Overview </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Revenue </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have not generated any revenue from product sales since our inception, and do not expect to generate any revenue from the sale of products
in the near future. If our development efforts result in clinical success and regulatory approval or collaboration agreements with third parties for our product candidates, we may generate revenue from those product candidates. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Operating Expenses </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The majority
of our operating expenses since inception have consisted primarily of in-licensing costs of our product candidate beloranib, research and development activities, and general and administrative costs. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><I>Research and Development Expenses </I></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Research and development expenses, which consist primarily of costs associated with our product research and development efforts, are expensed
as incurred. Research and development expenses consist primarily of: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">personnel costs, including salaries, related benefits and stock-based compensation for employees engaged in scientific research and development functions; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">third-party contract costs relating to research, formulation, manufacturing, pre-clinical studies and clinical trial activities; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">external costs of outside consultants; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">payments made under our third-party licensing agreements; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">laboratory consumables; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">allocated facility-related costs. </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">15 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have been developing beloranib, ZGN-839, and our second-generation MetAP2 inhibitors, and
typically use our employee, consultant and infrastructure resources across our development programs. We track outsourced development costs by product candidate or development program, but we do not allocate personnel costs, external consultant
costs, payments made under our licensing agreements or other internal costs to specific development programs or product candidates unless the payments are specifically identifiable to a development program or product candidate. We record our
research and development expenses net of any research and development tax incentives we are entitled to receive from government authorities. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Research and development activities are central to our business. Product candidates in later stages of clinical development generally have
higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We expect that our research and development expenses will continue to increase in the
foreseeable future as we pursue later stages of clinical development of our product candidates. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We cannot determine with certainty the
duration and completion costs of the current or future clinical trials of our product candidates or if, when, or to what extent we will generate revenue from the commercialization and sale of any of our product candidates that obtain regulatory
approval. We may never succeed in achieving regulatory approval for any of our product candidates. The duration, costs, and timing of clinical trials and development of our product candidates will depend on a variety of factors, including: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the scope, rate of progress, and expense of our ongoing as well as any additional clinical trials and other research and development activities; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">future clinical trial results; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">uncertainties in clinical trial enrollment rate or design; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">significant and changing government regulation; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the timing and receipt of any regulatory approvals; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA&#146;s or other regulatory authority&#146;s influence on trial design. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">A change in
the outcome of any of these variables with respect to the development of a product candidate could mean a significant change in the costs and timing associated with the development of that product candidate. For example, if the FDA, or another
regulatory authority were to require us to conduct clinical trials beyond those that we currently anticipate will be required for the completion of clinical development of a product candidate, or if we experience significant delays in enrollment in
any of our clinical trials, we could be required to expend significant additional financial resources and time on the completion of clinical development. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>General and Administrative Expenses </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">General and administrative expenses consist primarily of personnel costs, consisting of salaries, related benefits and stock-based
compensation, of our executive, finance, commercial, business and corporate development and other administrative functions. General and administrative expenses also include travel expenses, allocated facility-related costs not otherwise included in
research and development expenses, insurance expenses, and professional fees for auditing, tax and legal services, including legal expenses to pursue patent protection of our intellectual property. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We expect that general and administrative expenses will increase in the future as we expand our operating activities and incur additional
costs associated with operating as a public company. These public company related increases will likely include additional costs related to personnel; legal, accounting and audit services; directors&#146; and officers&#146; liability insurance
premiums; and investor relations. In addition, if we obtain marketing approval for beloranib, we will incur significant sales and marketing expenses. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Other Income (Expense) </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Interest income.</I> Interest income consists of interest earned on our cash equivalents and marketable securities. Our interest income has
not been significant due to low interest earned on invested balances. We anticipate that our interest income will increase in the future due to increased invested balances from cash proceeds received from our IPO in June 2014 and the follow-on
offering that we closed in January 2015. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Interest expense.</I> Interest expense relates to outstanding borrowings under a credit
facility that we entered into on March&nbsp;31, 2014, consisting of the stated interest of 8.1%&nbsp;per year due on outstanding borrowings, a final payment of 6% of amounts drawn down that is being recorded as interest expense over the term through
the maturity date using the effective-interest method, the amortization of deferred financing costs, the accretion of debt discount relating to the credit facility, and a fee which was due to the lender upon the completion of our IPO. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">16 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Foreign currency transaction gains (losses), net.</I> Foreign currency transaction gains
(losses), net consists of the realized and unrealized gains and losses from foreign currency-denominated cash balances, vendor payables and tax-related receivables from the Australian government. We currently do not engage in hedging activities
related to our foreign currency-denominated receivables and payables; as such, we cannot predict the impact of future foreign currency transaction gains and losses on our operating results. See &#147;&#151;Quantitative and Qualitative Disclosures
about Market Risk.&#148; </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Income Taxes </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Since our inception in 2005, we have not recorded any U.S. federal or state income tax benefits for the net losses we have incurred in each
year or our earned research and development tax credits, due to our uncertainty of realizing a benefit from those items. As of December&nbsp;31, 2014, we had federal and state net operating loss carryforwards of $17.0 million and $9.6&nbsp;million,
respectively. Our federal net operating loss carryforwards begin to expire in 2026 and our state net operating carryforwards begin to expire in 2030. We also had federal and state research and development tax credit carryforwards of $7.7 million and
$1.9 million, respectively, as of December&nbsp;31, 2014, which begin to expire in 2026 and 2021, respectively. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">17 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Results of Operations </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Comparison of Three Months Ended June&nbsp;30, 2015 and 2014 </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following table summarizes our results of operations for the three months ended June&nbsp;30, 2015 and 2014: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
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<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
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<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Three&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
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<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Statement of Operations Data:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Revenue</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Operating expenses:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Research and development</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12,526</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,695</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7,831</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">General and administrative</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,084</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,291</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,793</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total operating expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17,610</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,986</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">11,624</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Loss from operations</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(17,610</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(5,986</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(11,624</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other income (expense):</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest income</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">63</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">62</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(213</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(443</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">230</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Foreign currency transaction gains (losses), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">28</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(24</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total other income (expense), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(146</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(414</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">268</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(17,756</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(6,400</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(11,356</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Research and development expenses </I></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="75%"></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Three&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Direct research and development expenses by program:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Beloranib:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Pre-clinical and manufacturing</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,329</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,147</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">182</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Clinical trials</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,646</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">900</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,746</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6,975</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,047</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,928</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">ZGN-839 and second-generation MetAP2 inhibitors</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,177</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">290</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,887</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">9,152</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,337</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,815</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Unallocated expenses:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Personnel related</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,235</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">609</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,626</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Consultants</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">828</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">681</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">147</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">311</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">68</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">243</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,374</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,358</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,016</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total research and development expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">12,526</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">4,695</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">7,831</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Research and development expenses for the three months ended June&nbsp;30, 2015 increased $7.8 million
compared to the three months ended June&nbsp;30, 2014. The increase was primarily due to increased costs of $3.9 million associated with our beloranib program, $1.9 million associated with ZGN-839 and our second-generation MetAP2 inhibitors, and
$2.0 million in our unallocated expenses. Of the increase in our beloranib program, clinical trial expenses for beloranib increased by $3.7 million period over period as a result of timing of our clinical trials in 2015 and 2014. Additionally,
pre-clinical and manufacturing costs increased by $0.2 million over the prior period primarily as a result of increased costs for toxicology studies required for our planned New Drug Application, or NDA, submission. As of June&nbsp;30, 2015, we had
two ongoing clinical trials, our Phase 2b trial in patients with severe obesity complicated by type 2 diabetes and our U.S. Phase 3 trial in patients with PWS. In the second quarter of 2014 we had one trial which started at the very end of June and
we were preparing for our upcoming Phase 3 trial in patients with PWS. Clinical trial activities undertaken by our Australian subsidiary are recorded net of a 45% research and development tax incentive from the Australian government. Costs related
to ZGN-839 and second-generation MetAP2 inhibitors increased in 2015 as a result of our increased focus on our early-stage programs in 2015. Unallocated expenses increased period over period primarily due to an increase in personnel related costs of
$1.6 million of which salary expense increased $0.6 million, bonus expense increased $0.2&nbsp;million and stock-based compensation expense increased $0.6 million. These increases resulted primarily from an increase in hiring. Between July&nbsp;1,
2014 and June&nbsp;30, 2015, we hired 16 new employees in research and development. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">18 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><I>General and administrative expenses </I></B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="73%"></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Three&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Personnel related</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,169</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">654</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,515</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Professional and consulting fees</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,331</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">444</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,887</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Travel and other</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">584</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">193</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">391</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total general and administrative expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">5,084</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,291</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">3,793</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">General and administrative expenses for the three months ended June&nbsp;30, 2015 increased $3.8 million
compared to the three months ended June&nbsp;30, 2014. The increase was primarily due to increased professional and consulting fees of $1.9 million, increased personnel related costs of $1.5 million and increased travel and other related costs of
$0.4 million period over period. Professional and consulting fees increased primarily due to increased accounting and legal fees to support our operating as a public company and costs incurred for commercial-readiness activities related to PWS.
Personnel related costs increased period over period primarily due to hiring additional employees and granting stock-based awards to our new hires and existing employees. Of the increase in personnel related costs, salary expense increased $0.3
million, bonus expense increased $0.1 million and stock-based compensation expense increased $1.0 million. The increase in stock-based compensation was due to granting additional stock-based awards as well as an increase in the value of the awards.
Travel and other costs increased primarily due to increased insurance expense, travel, and information technology-related expenses to support our operating as a public company. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><I>Other income (expense), net </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Interest expense.</I> Interest expense for the three months ended June&nbsp;30, 2015 and 2014 was related to interest expense on our
outstanding borrowings under the credit facility that we entered into on June&nbsp;30, 2014, consisting of the stated interest of 8.1%&nbsp;per year due on outstanding borrowings of $0.2 million, a final payment of 6% of amounts drawn down that is
being recorded as interest expense over the term through the maturity date using the effective-interest method and the amortization of deferred financing costs and debt discount relating to the credit facility. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Foreign currency transaction gains (losses), net.</I> We had a small amount of foreign currency transaction losses for the three months
ended June&nbsp;30, 2015 and 2014. Foreign currency transactions gains and losses consisted of the realized and unrealized gains and losses from foreign currency-denominated cash balances, vendor payables and tax-related receivables from the
Australian government, generally reflecting the movements of the Australian dollar relative to the U.S. dollar. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">19 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Comparison of Six Months Ended June&nbsp;30, 2015 and 2014 </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following table summarizes our results of operations for the six months ended June&nbsp;30, 2015 and 2014: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="70%"></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>Statement of Operations Data:</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Revenue</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">$</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Operating expenses:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Research and development</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">22,741</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7,970</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14,771</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">General and administrative</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">8,109</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,537</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,572</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total operating expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">30,850</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">10,507</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">20,343</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Loss from operations</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(30,850</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(10,507</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(20,343</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other income (expense):</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest income</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">102</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">101</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Interest expense</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(426</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(445</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">19</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Foreign currency transaction gains (losses), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(54</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">93</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(147</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total other income (expense), net</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(378</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(351</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(27</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net loss</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(31,228</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,858</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(20,370</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Research and development expenses </I></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="70%"></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Direct research and development expenses by program:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Beloranib:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Pre-clinical and manufacturing</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">4,859</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">3,504</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,355</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:5.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Clinical trials</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">7,911</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,194</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">6,717</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12,770</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,698</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">8,072</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">ZGN-839 and second-generation MetAP2 inhibitors</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,160</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">510</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,650</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16,930</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,208</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">11,722</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Unallocated expenses:</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Personnel related</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,831</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,190</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,641</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Consultants</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,407</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,410</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(3</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Other</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">573</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">162</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">411</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Subtotal</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">5,811</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,762</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,049</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:7.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total research and development expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">&nbsp;22,741</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">&nbsp;&nbsp;&nbsp;7,970</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">&nbsp;14,771</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Research and development expenses for the six months ended June&nbsp;30, 2015 increased $14.8 million compared
to the six months ended June&nbsp;30, 2014. The increase was primarily due to increased costs of $8.1 million associated with our beloranib program, $3.7 million associated with ZGN-839 and second-generation MetAP2 inhibitors, and $3.0 million in
our unallocated expenses. Of the increase in our beloranib program, clinical trial expenses for beloranib increased by $6.7 million period over period as a result of timing of our clinical trials in 2015 and 2014. Additionally, pre-clinical and
manufacturing costs increased by $1.4 million over the prior period primarily as a result of increased costs for toxicology studies required for our planned NDA, submission. As of June&nbsp;30, 2015, we had two ongoing clinical trials, our Phase 2
trial in patients with severe obesity complicated by type 2 diabetes and our U.S. Phase 3 trial in patients with PWS. In the first half of 2014 we had one clinical trial which commenced at the very end of June. Clinical trial activities undertaken
by our Australian subsidiary are recorded net of a 45% research and development tax incentive from the Australian government. Costs related to ZGN-839 and second-generation MetAP2 inhibitors increased in 2015 as a result of our increased focus on
our early-stage programs in 2015. Unallocated expenses increased period over period primarily due to an increase in personnel related costs of $2.6 million of which salary expense increased $1.0 million, bonus expense increased $0.4&nbsp;million and
stock-based compensation expense increased $1.0 million. These increases resulted primarily from an increase in hiring. Between July&nbsp;1, 2014 and June&nbsp;30, 2015, we hired 16 new employees in research and development. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">20 </P>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><I>General and administrative expenses </I></B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="84%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="76%"></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Change</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="10" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Personnel related</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">3,644</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">1,188</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,456</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Professional and consulting fees</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3,395</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,029</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2,366</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Travel and other</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,070</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">320</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">750</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total general and administrative expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">8,109</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">2,537</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">5,572</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">General and administrative expenses for the six months ended June&nbsp;30, 2015 increased $5.6 million
compared to the six months ended June&nbsp;30, 2014. The increase was primarily due to increased personnel related costs of $2.5 million, increased professional and consulting fees of $2.4 million and increased travel and other related costs of $0.8
million period over period. Personnel related costs increased period over period primarily due to hiring additional employees and granting stock-based awards to our new hires and existing employees. Of the increase in personnel related costs, salary
expense increased $0.6 million, bonus expense increased $0.2 million and stock-based compensation expense increased $1.6 million. The increase in stock-based compensation was due to granting additional stock-based awards as well as an increase in
the value of the awards. Professional and consulting fees increased primarily due to increased accounting and legal fees to support our operating as a public company and costs incurred for commercial-readiness activities related to PWS. Travel and
other costs increased primarily due to increased insurance expense, travel, and information technology-related expenses to support our operating as a public company. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><I>Other income (expense), net </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Interest expense.</I> Interest expense for the six months ended June&nbsp;30, 2015 and 2014 was related to interest expense on our
outstanding borrowings under the credit facility that we entered into on June&nbsp;30, 2014, consisting of the stated interest of 8.1%&nbsp;per year due on outstanding borrowings of $0.4 million, a final payment of 6% of amounts drawn down that is
being recorded as interest expense over the term through the maturity date using the effective-interest method and the amortization of deferred financing costs and debt discount relating to the credit facility. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Foreign currency transaction gains (losses), net.</I> We had a small amount of foreign currency transaction losses for the six months ended
June&nbsp;30, 2015 compared to a small amount of foreign currency transaction gains for the six months end June&nbsp;30, 2014. Foreign currency transactions gains and losses consisted of the realized and unrealized gains and losses from foreign
currency-denominated cash balances, vendor payables and tax-related receivables from the Australian government, generally reflecting the movements of the Australian dollar relative to the U.S. dollar. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Liquidity and Capital Resources </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of
June&nbsp;30, 2015 and December 31, 2014, we had cash and cash equivalents and marketable securities totaling $220.1&nbsp;million and $115.4 million, respectively. We invest our cash in money market funds, U.S. government securities, corporate
bonds, and commercial paper, with the primary objectives to preserve principal, provide liquidity and maximize income without significantly increasing risk. Since our inception in November 2005, we have not generated any revenue and have incurred
recurring net losses. As of June&nbsp;30, 2015, we had an accumulated deficit of $136.6 million. From inception to our IPO, we funded our operations primarily through sales of redeemable convertible preferred stock and, to a lesser extent, through
the issuances of convertible promissory notes. In June 2014, we completed an IPO of common stock with net proceeds of $100.2 million, after deducting underwriting discounts and commissions, and offering expenses. On January&nbsp;28, 2015, we
completed a follow-on offering of our common stock, which resulted in&nbsp;the sale of 3,942,200 shares at a price of $35.00 per share. The Company received net proceeds from the follow-on offering of $130.0 million based upon the price of $35.00
per share after deducting underwriting discounts and commissions. The Company also incurred offering costs of $0.5 million related to the follow-on offering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On March&nbsp;31, 2014, we entered into a loan and security agreement, or the 2014 Credit Facility, which provided for initial borrowings of
$7.5&nbsp;million and additional borrowings of up to $12.5&nbsp;million. On that same date, we received proceeds of $7.5&nbsp;million from the issuance of promissory notes under a term loan as part of the 2014 Credit Facility. Of the additional
$12.5&nbsp;million of borrowings that was available to us, $7.5&nbsp;million was available to be drawn down until September&nbsp;30, 2014 and $5.0&nbsp;million was available to be drawn down for a 30-day period upon the completion of our IPO that
occurred in June 2014. We elected not to draw </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">21 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
down the $7.5&nbsp;million or the $5.0 million and these amounts are no longer available to us. All promissory notes issued under the 2014 Credit Facility are collateralized by substantially all
of our personal property, other than our intellectual property. There are no financial covenants associated with the debt facility; however, there are negative covenants restricting our activities, including limitations on dispositions, mergers or
acquisitions; encumbering or granting a security interest in our intellectual property; incurring indebtedness or liens; paying dividends; making certain investments; and certain other business transactions. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon entering into this 2014 Credit Facility, we were obligated to make monthly, interest-only payments on any term loans funded under the
2014 Credit Facility until December&nbsp;1, 2014 and, thereafter, to pay 36&nbsp;consecutive, equal monthly installments of principal and interest from January&nbsp;1, 2015 through December&nbsp;1, 2017. As per the terms of the agreement, in June
2014, upon the completion of our IPO, the term of monthly, interest-only payments was extended until June&nbsp;1, 2015. Outstanding term loans under the 2014 Credit Facility bear interest at an annual rate of 8.1%. In addition, a final payment equal
to 6.0% of any amounts drawn under the facility is due upon the earlier of the maturity date, acceleration of the term loans or prepayment of all or part of the term loans. We were also obligated to pay a separate fee upon any initial public
offering; a sale of substantially all of our assets; or a merger, reorganization or sale of our voting equity securities where existing voting stockholders hold less than 50% of voting equity securities after such transaction. During the year ended
December&nbsp;31, 2014, we recorded interest expense of $0.2 million relating to the fee paid to the lender upon completion of our IPO. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following table summarizes our sources and uses of cash for each of the periods presented below: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="76%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="78%"></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD VALIGN="bottom" WIDTH="4%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Six&nbsp;Months&nbsp;Ended&nbsp;June&nbsp;30,</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2015</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>2014</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center"><B>(in thousands)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash used in operating activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(25,474</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">(10,249</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash used in investing activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(79,065</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">(68</TD>
<TD NOWRAP VALIGN="bottom">)&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Cash provided by financing activities</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">130,009</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">109,033</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Net increase in cash and cash equivalents</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">25,470</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">98,716</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1px; font-size:0pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE="border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Net cash used in operating activities </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2015, operating activities used $25.5 million of cash, primarily resulting from our net loss of $31.2
million, partially offset by cash provided by changes in our operating assets and liabilities of $2.9 million and non-cash charges of $2.8 million. Net cash provided by changes in our operating assets and liabilities during the six months ended
June&nbsp;30, 2015 consisted primarily of a $3.5 million increase in accounts payable and accrued expenses, partially offset by $0.7 million increase in our research and development tax incentive receivable from the Australian government. Our net
non-cash charges during the six months ended June&nbsp;30, 2015 consisted primarily of stock-based compensation expense of $3.0 million. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2014, operating activities used $10.3 million of cash, primarily resulting from our net loss of
$10.9 million, partially offset by non-cash charges of $0.4 million and cash provided by changes in our operating assets and liabilities of $0.2 million. Our net non-cash charges during the six months ended June&nbsp;30, 2014 consisted primarily of
stock-based compensation expense of $0.4 million. Net cash provided by changes in our operating assets and liabilities during the six months ended June&nbsp;30, 2014 consisted primarily of a $0.5 million decrease in our research and development tax
incentive receivable from the Australian government and a $0.8 million increase in accrued expenses, partially offset by a $1.1 million increase in prepaid expenses and other current assets. In the six months ended June&nbsp;30, 2014, we collected
the $0.6 million tax incentive receivable recorded as of December&nbsp;31, 2012. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our cash provided by operating activities is generally
affected by the amount of our net loss, changes in operating asset accounts and add-backs of non-cash expense items such as stock-based compensation expense and unrealized foreign currency gains and losses. Our net losses were primarily attributed
to research and development activities related to our beloranib and ZGN-839 programs and our general and administrative expenses, as we had no revenue in the periods. Changes in our operating asset accounts are generally driven by the level of
operating activity and timing of payments to our vendors. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">22 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Net cash used in investing activities </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2015 and 2014, net cash used in investing activities was $79.1 million and $0.1 million,
respectively. During the six months ended June&nbsp;30, 2015, we used $158.6 million to purchase marketable securities, which was partially offset by proceeds from the maturities of marketable securities of $79.7 million. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2015 and 2014, we used a small amount of cash for the purchases of property and equipment. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Net cash provided by financing activities </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2015, net cash provided by financing activities was $130.0 million primarily as a result of proceeds
from the follow-on offering of $130.0 million based upon the price of $35.00 per share after deducting underwriting discounts and commissions, partially offset by payments of $0.5 million of offering costs related to the follow-on offering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2014, net cash provided by financing activities was $109.0 million as a result of net proceeds, net
of underwriting discounts and commissions, of $102.7 million from our initial public offering, $7.4 million from the issuance of debt and $0.4 million from issuances of our Series&nbsp;E redeemable convertible preferred stock, all partially offset
by payments of $1.4 million of deferred offering costs related to our IPO that we completed in June 2014. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Operating Capital Requirements </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Beloranib is still in clinical development and ZGN-839 and our second-generation MetAP2 inhibitors are in pre-clinical development. We expect
to continue to incur significant expenses and increasing operating losses for the foreseeable future. We anticipate that our expenses will increase substantially if and as we: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>

<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for obesity and hyperphagia in patients with PWS through Phase&nbsp;3 clinical trials; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for patients with HIAO; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">initiate IND-enabling studies and clinical development of ZGN-839 and our second-generation MetAP2 inhibitors through the initiation of Phase 1 clinical development; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">advance the clinical development of beloranib as a treatment for severe obesity in the general population through a Phase 2b clinical trial; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seek to identify additional indications for beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seek to obtain regulatory approvals for our product candidates; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">add operational, financial and management information systems; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">add personnel, including personnel to support our product development and future commercialization; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">maintain, leverage and expand our intellectual property portfolio. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We expect that our
existing cash and cash equivalents and marketable securities as of June&nbsp;30, 2015 will enable us to fund our operating expenses and capital expenditure requirements for at least the next 18 months. We have based this estimate on assumptions that
may prove to be wrong, and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of beloranib, ZGN-839 and our second-generation MetAP2 inhibitors
and because the extent to which we may enter into collaborations with third parties for development of these product candidates is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with
completing the research and development of our product candidates. Our future capital requirements for beloranib, ZGN-839 and our second-generation MetAP2 inhibitors will depend on many factors, including: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the costs, timing and outcome of regulatory review; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the costs of future research and development activities, including clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the costs of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending intellectual property-related claims; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the extent to which we acquire or in-license other products and technologies; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our ability to establish any future collaboration arrangements on favorable terms, if at all. </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">23 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Until such time, if ever, as we can generate substantial product revenue, we expect to finance
our cash needs through a combination of equity offerings, debt financings, collaborations, strategic alliances and licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the
ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing, if available, may involve agreements
that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute the
ownership interest of our common stockholders. If we raise additional funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue
streams, research programs of beloranib, ZGN-839 or our second-generation MetAP2 inhibitors or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may
be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market beloranib, ZGN-839 or our second-generation MetAP2 inhibitors that we would otherwise prefer to
develop and market ourselves. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Since our inception in 2005, we have not recorded any U.S. federal or state income tax benefits for the net
losses we have incurred in each year or our earned research and development tax credits, due to our uncertainty of realizing a benefit from those items. As of December&nbsp;31, 2014, we had federal and state net operating loss carryforwards of $17.0
million and $9.6&nbsp;million, respectively. Our federal net operating loss carryforwards begin to expire in 2026 and our state net operating loss carryforwards begin to expire in 2030. As of December&nbsp;31, 2014, we also had federal and state
research and development tax credit carryforwards of $7.7 million and $1.9&nbsp;million, respectively, which begin to expire in 2026 and 2021, respectively. We have not completed a study to assess whether an ownership change, generally defined as a
greater than 50% change (by value) in the equity ownership of our corporate entity over a three-year period, has occurred or whether there have been multiple ownership changes since our inception, due to the significant costs and complexities
associated with such studies. Accordingly, our ability to utilize our tax carryforwards may be limited. Additionally, U.S. tax laws limit the time during which these carryforwards may be utilized against future taxes. As a result, we may not be able
to take full advantage of these carryforwards for federal and state tax purposes. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Contractual Obligations and Commitments </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the six months ended June&nbsp;30, 2015, there have been no material changes to our contractual obligations and commitments outside the
ordinary course of business from those described under the heading &#147;Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations&#151;Contractual Obligations and Commitments&#148; in our Annual Report on Form 10-K
for the year ended December&nbsp;31, 2014, as filed with the SEC on March&nbsp;25, 2015, and in our Quarterly Report on Form 10-Q for the period ended March 31. 2015, as filed with the SEC on May 14, 2015. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Off-Balance Sheet Arrangements </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We did
not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined under SEC rules, such as relationships with unconsolidated entities or financial partnerships, which are often referred to as
structured finance or special purpose entities, established for the purpose of facilitating financing transactions that are not required to be reflected on our balance sheets. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Application of Critical Accounting Policies </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our condensed consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. The preparation
of our financial statements and related disclosures requires us to make estimates, assumptions and judgments that affect the reported amount of assets, liabilities, revenue, costs and expenses, and related disclosures. We believe that of our
critical accounting policies which are described under the heading &#147;Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations&#151;Critical Accounting Policies and Significant Judgments and Estimates&#148; in
our Annual Report on Form 10-K for the year ended December&nbsp;31, 2014, as filed with the SEC on March&nbsp;25, 2015, the following accounting policies involve the most judgment and complexity: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="14%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">accrued research and development costs; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="14%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">stock-based compensation. </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">24 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Accordingly, we believe the policies set forth above are critical to fully understanding and evaluating our
financial condition and results of operations. If actual results or events differ materially from the estimates, judgments and assumptions used by us in applying these policies, our reported financial condition and results of operations could be
materially affected. There have been no material changes to our critical accounting policies during the six months ended June&nbsp;30, 2015. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Recently
Issued Accounting Pronouncements </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In August 2014, the Financial Accounting Standards Board issued Accounting Standards Update,
Presentation of Financial Statements &#151; Going Concern (Subtopic 205-40). The new guidance addresses management&#146;s responsibility to evaluate whether there is substantial doubt about an entity&#146;s ability to continue as a going concern and
to provide related footnote disclosures. Management&#146;s evaluation should be based on relevant conditions and events that are known and reasonably knowable at the date that the financial statements are issued. The standard will be effective for
the first interim period within annual reporting periods beginning after December&nbsp;15, 2016. Early adoption is permitted. We are evaluating the effect that this guidance will have on our consolidated financial statements. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_8"></A>Item&nbsp;3. Quantitative and Qualitative Disclosure about Market Risk </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Interest Rate Fluctuation Risk </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our
cash and cash equivalents as of June&nbsp;30, 2015 consisted of cash, commercial paper, and money market accounts. The primary objectives of our investment activities are to preserve principal, provide liquidity and maximize income without
significantly increasing risk. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S.&nbsp;interest rates. However, because of the nature of the instruments in our portfolio, a
sudden change in market interest rates would not be expected to have a material impact on our financial condition and/or results of operation. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Foreign Currency Exchange Risk </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Foreign currency transaction exposure results primarily from transactions with our contract research organizations and other providers related
to our clinical trials that are denominated in currencies other than the functional currency of the legal entity in which the transaction is recorded by us, primarily the Australian dollar. Any transaction gains or losses resulting from currency
fluctuations is recorded on a separate line in our consolidated statements of operations. Net foreign currency transaction losses of $0.1 million were recorded for the&nbsp;six months ended June&nbsp;30, 2015. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Currently, our largest foreign currency exposures are those with respect to the Australian dollar. Relative to foreign currency exposures
existing as of June&nbsp;30, 2015, a 10% unfavorable movement in foreign currency exchange rates would expose us to losses in earnings. For the six months ended June&nbsp;30, 2015, we estimated that a 10% unfavorable movement in foreign currency
exchange rates would have increased our net loss by less than $0.1 million. This amount is based on a sensitivity analysis performed on our financial position as of June&nbsp;30, 2015. We have experienced and we will continue to experience
fluctuations in our net income (loss) as a result of revaluing our assets and liabilities that are not denominated in the functional currency of the entity that recorded the asset or liability. At this time, we do not hedge our foreign currency
risk. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_9"></A>Item&nbsp;4. Management&#146;s Evaluation of our Disclosure Controls and Procedures </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) under the Securities Exchange Act of 1934, as
amended, or the Exchange Act) that are designed to ensure that information required to be disclosed in the reports that we file or submit under the Exchange Act is (1)&nbsp;recorded, processed, summarized, and reported within the time periods
specified in the SEC&#146;s rules and forms and (2)&nbsp;accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required
disclosure. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Based on this evaluation, our management, with the participation of our principal executive officer and principal financial
officer, evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. In designing and evaluating our disclosure controls and procedures, our management recognizes that any controls and
procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and
procedures. Our principal executive officer and principal financial officer have concluded based upon the evaluation described above that, as of June&nbsp;30, 2015, our disclosure controls and procedures were effective at the reasonable assurance
level. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">25 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We continue to review and document our disclosure controls and procedures, including our internal
controls and procedures for financial reporting, and may from time to time make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Changes in Internal Control Over Financial Reporting </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">During the three months ended June&nbsp;30, 2015, there have been no changes in our internal control over financial reporting, as such term is
defined in Rules 13a-15(f) and 15(d)-15(f) promulgated under the Exchange Act, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_10"></A>PART&nbsp;II &#151; OTHER INFORMATION </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_11"></A>Item&nbsp;1. Legal Proceedings </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of the date of this filing, we were not party to any legal matters or claims. In the future, we may become party to legal matters and claims
arising in the ordinary course of business, the resolution of which we do not anticipate would have a material adverse impact on our financial position, results of operations or cash flows. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_12"></A>Item&nbsp;1A.&nbsp;Risk Factors </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><I>Investing in our common stock involves a high degree of risk. You should carefully consider the risks described below, as well as the other
information in this Quarterly Report on Form 10-Q and in our other public filings before making an investment decision. Our business, prospects, financial condition, or operating results could be harmed by any of these risks, as well as other risks
not currently known to us or that we currently consider immaterial. If any such risks or uncertainties actually occur, our business, financial condition or operating results could differ materially from the plans, projections and other
forward-looking statements included in the section titled &#147;Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations&#148; and elsewhere in this report and in our other public filings. The trading price of our
common stock could decline due to any of these risks, and as a result, you may lose all or part of your investment. </I></P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Risks Related to Product
Development, Regulatory Approval and Commercialization </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We depend almost entirely on the success of one product candidate, beloranib, which is in
Phase&nbsp;3 clinical development for our lead indication of the treatment of obesity and hyperphagia in patients with PWS and Phase 2 clinical development for HIAO and severe obesity in the general population. We cannot be certain that we will be
able to obtain regulatory approval for, or successfully commercialize, beloranib. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We currently have only one product candidate,
beloranib, in clinical development, and our business depends almost entirely on its successful clinical development, regulatory approval and commercialization. We currently have no drug products for sale and may never be able to develop marketable
drug products. Beloranib, which is currently in Phase 3 clinical development as a treatment for obesity and hyperphagia in patients with Prader-Willi syndrome, or PWS, Phase 2 clinical development for hypothalamic injury-associated obesity, or HIAO,
and Phase&nbsp;2b clinical development for severe obesity in the general population, will require substantial additional clinical development, testing and regulatory approval before we are permitted to commence its commercialization. Our other
product candidates, including ZGN-839, and our second-generation MetAP2 inhibitors, are still in pre-clinical development stages. The clinical trials of our product candidates are, and the manufacturing and marketing of our product candidates will
be, subject to extensive and rigorous review and regulation by numerous government authorities in the United States and in other countries where we intend to test and, if approved, market any product candidate. Before obtaining regulatory approvals
for the commercial sale of any product candidate, we must demonstrate through pre-clinical testing and clinical trials that the product candidate is safe and effective for use in each target indication. This process can take many years and may
include post-marketing studies or PMS, post-marketing requirements, or PMRs, and surveillance such as Risk Evaluation and Mitigation Strategies, or REMS, which will require the expenditure of substantial resources beyond the proceeds we currently
have on hand. Of the large number of drugs in development in the United States, only a small percentage will successfully complete the U.S. Food and Drug Administration, or FDA, regulatory approval process and be commercialized. Accordingly, even if
we are able to obtain the requisite financing to continue to fund our development and clinical trials, we cannot assure you that beloranib or any other of our product candidates will be successfully developed or commercialized. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are not permitted to market beloranib in the United States until we receive approval of a New Drug Application, or an NDA, from the FDA, or
in any foreign countries until we receive the requisite marketing approval from such countries. We recently completed three Phase 2 clinical trials of beloranib, one in patients with PWS, one in patients with HIAO and one in severely obese patients.
We expect that the FDA will require us to conduct at least one pivotal trial in order to submit an NDA for beloranib as a treatment for patients with PWS as well as HIAO. However, meeting the requirements of the FDA or certain European regulatory
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">26 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
authorities may require that we conduct additional pivotal trials. We expect that the FDA will also require us to complete our ongoing Phase&nbsp;2b clinical trial and at least two Phase&nbsp;3
clinical trials prior to submitting an NDA for beloranib as a treatment for severe obesity in the general population, and may require that we conduct a cardiovascular outcomes trial which may include over 10,000 patients and last over the course of
multiple years. Pursuant to the FDA&#146;s February 2007 draft guidance to industry on the development of weight management drugs, in order to reasonably estimate the safety of a weight-management drug, Phase&nbsp;3 clinical trials must randomize
approximately 3,000&nbsp;subjects to active doses of the product and 1,500&nbsp;subjects to placebo in clinical trials for a one-year duration. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We initiated our Phase&nbsp;3 clinical program, which is planned to consist of two Phase 3 clinical trials, of beloranib in patients with PWS,
with the first Phase 3 trial in the United States, also referred to as the bestPWS clinical trial, ZAF-311, having started in September 2014. Patient enrollment of 108 patients in the ZAF-311 clinical trial was completed in May 2015. We plan to
initiate our second Phase 3 clinical trial of beloranib in patients with PWS primarily in the European Union in the third quarter of 2015. We continue to engage in discussions with applicable regulatory authorities to determine if our proposed Phase
3 clinical trials will be sufficient to support an NDA submission to the FDA and a marketing authorization application, or MAA, to the European Medicines Agency, or EMA, and other regulatory agencies seeking approval of beloranib for the treatment
of obesity and hyperphagia in patients with PWS. Prior to initiation of our Phase&nbsp;3 clinical program for beloranib in patients with PWS, we submitted pre-clinical animal studies and clinical trial results for the FDA&#146;s review, and have
several additional studies to complete or that need further evaluation, including human factors studies to demonstrate patients&#146; ability to correctly use the syringe device for dispensing beloranib, abuse potential studies and rat and mouse
carcinogenicity studies. However, the FDA may require additional pre-clinical animal studies or clinical studies, labeling statements in the beloranib product labeling, or restrictions. We also initiated a Phase 2b clinical trial of beloranib as a
treatment for severe obesity in patients with type 2 diabetes. This trial is being conducted outside of the United States and completion of the six-month interim analysis of a subset of 95 patients is expected to be available in late 2015 or very
early 2016, and is currently greater than 95% enrolled with enrollment anticipated to be completed in August 2015. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are also evaluating
additional proprietary methionine aminopeptidase&nbsp;2, or MetAP2, inhibitors beyond beloranib as potential development candidates that would provide increased patient convenience in the form of oral dosing, or an otherwise improved clinical
profile. A decision on whether to subsequently advance beloranib into pivotal trials for severe obesity or to leverage the opportunity to advance a second-generation MetAP2 inhibitor into early development for severe obesity is anticipated to be
made on the basis of results obtained from our Phase&nbsp;3 clinical trial in the United States of beloranib in patients with PWS, the results obtained from the <FONT STYLE="white-space:nowrap">six-month</FONT> interim analysis from our Phase 2b
clinical trial in severe obesity and type 2 diabetes, and discussions with regulatory authorities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Accordingly, obtaining approval of an
NDA is a complex, lengthy, expensive and uncertain process, and the FDA and certain European regulatory authorities may delay, limit or deny approval of beloranib for many reasons, including, among others: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we may not be able to demonstrate that beloranib is safe and effective in treating obesity and hyperphagia in patients with PWS, obesity in patients with HIAO or severe obesity in the general population, to the
satisfaction of the FDA and EMA; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the results of our clinical trials may not meet the level of statistical or clinical significance required by the FDA and EMA for marketing approval; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may disagree with the number, design, size, duration, conduct or implementation of our clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may require that we conduct additional clinical trials or pre-clinical studies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may not approve the formulation, labeling or specifications of beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the contract research organizations, or CROs, that we retain to conduct our clinical trials may take actions outside of our control that materially adversely impact our clinical trials; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may find the data from pre-clinical studies and clinical trials insufficient to demonstrate that beloranib&#146;s clinical and other benefits outweigh its safety risks; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may disagree with our interpretation of data from our pre-clinical studies and clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the FDA and EMA may not accept data generated at our clinical trial sites; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">if and when our NDA is submitted and reviewed by an FDA advisory committee, the FDA may have difficulties scheduling an advisory committee meeting in a timely manner or the advisory committee may recommend against
approval of our application or may recommend that the FDA require, as a condition of approval, additional pre-clinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions; </TD></TR></TABLE>
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<TD ALIGN="left" VALIGN="top">the FDA may require development of a REMS, as a condition of approval or post-approval, or may not agree with our proposed REMS or may impose additional requirements that limit the promotion, advertising, distribution,
or sales of beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the FDA and EMA may not approve the manufacturing processes or facilities of third-party manufacturers with which we contract; or </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the FDA and EMA may change their approval policies or adopt new regulations. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any of these
factors, many of which are beyond our control, could jeopardize our ability to obtain and/or maintain regulatory approval for and successfully market beloranib. Moreover, because our business is almost entirely dependent upon this one product
candidate, any such setback in our pursuit of regulatory approval would have a material adverse effect on our business and prospects. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Positive
results from early clinical trials of beloranib are not necessarily predictive of the results of later clinical trials of beloranib. If we cannot replicate the positive results from our earlier clinical trials of beloranib in our later-stage
clinical trials, we may be unable to successfully develop, obtain regulatory approval for and commercialize beloranib. It may further be necessary to validate different or additional instruments for measuring subjective endpoints, such as
hyperphagia, and to show that beloranib has a clinically meaningful impact on those endpoints in order to obtain regulatory approval. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Positive results from our Phase 1 and Phase 2 clinical trials of beloranib may not necessarily be predictive of the results from required
later-stage clinical trials. Similarly, even if we are able to complete our Phase&nbsp;2b or Phase&nbsp;3 clinical trials of beloranib according to our current development timeline, the positive results from our Phase&nbsp;1 and Phase&nbsp;2a
clinical trials of beloranib may not be replicated in our Phase&nbsp;2b or Phase 3 clinical trial results. The design of our Phase 3 clinical program of beloranib as a treatment for obesity and hyperphagia in patients with PWS differs in several
aspects from our recently completed Phase&nbsp;2a clinical trial for PWS and we may not have consistent results between one Phase 3 clinical trial to the second Phase 3 clinical trial in PWS. For example, patients with PWS will not be limited to
living in closely-controlled PWS-specific group homes like they were in our Phase 2a clinical trial but will be predominantly living in family homes. In addition, patients with PWS will be treated with beloranib for substantially longer than four
weeks and our U.S. Phase 3 extension trial, European Phase 3 trial for PWS and all subsequent Phase 2 and 3 studies will test a pre-filled diluent syringe instead of single use glass vials, which were used in our Phase&nbsp;2a and U.S. Phase 3
clinical trials. One of the Phase&nbsp;3 clinical trials, ZAF-312, will be conducted primarily in the European Union, where we have not previously conducted clinical trials. In our Phase&nbsp;2a clinical trial for PWS we saw statistically
significant improvements in hyperphagia behaviors, body mass and fat mass; body weight was also reduced, but not to a statistically significant level. For example, the results of our Phase&nbsp;2a clinical trial for severe obesity were based on a
per protocol analysis of patients who completed the 12-week dosing in the clinical trial. Later-stage clinical trials will utilize highly rigorous statistical analyses. Based on an ongoing dialogue with the FDA, we have finalized our plan regarding
the statistical analysis of primary efficacy endpoints for the bestPWS clinical trial. Both hyperphagia-related behaviors and body weight will be the co-primary efficacy endpoints and will be evaluated at a significance level of p-value less than
0.05. Later-stage clinical trials will be evaluated based on an intent-to-treat analysis that includes all patients randomized in the clinical trial, regardless of whether they complete treatment, which may lead to different results. Moreover, if we
fail to validate a caregiver-administered PWS-specific hyperphagia-related behaviors questionnaire, or PWS HQ-CT, in time for it to be an effective tool to support the data from our Phase&nbsp;3 clinical trials, our Phase&nbsp;3 clinical program
and, in turn, our regulatory filing may be delayed until we validate the tool or develop and test a new one. This can be a lengthy process. There are also differences between our ZAF-311 and ZAF-312 clinical trials. For example, ZAF-312 is a
12-month randomized assessment trial while ZAF-311 is a six-month randomized assessment trial. Furthermore, ZAF-312 allows patients to live in group homes and includes PWS HQ-CT in different languages. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in later-stage clinical trials after
achieving positive results in early-stage development, and we cannot be certain that we will not face similar setbacks. These setbacks have been caused by, among other things, pre-clinical findings made while clinical trials were underway or safety
or efficacy observations made in clinical trials, including previously unreported adverse events. Moreover, pre-clinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that believed their product
candidates performed satisfactorily in pre-clinical studies and clinical trials nonetheless failed to obtain FDA and/or EMA approval. If we fail to produce positive results in our Phase&nbsp;2b or Phase&nbsp;3 clinical trials of beloranib, the
development timeline and regulatory approval and commercialization prospects for our leading product candidate, and, correspondingly, our business and financial prospects, would be materially adversely affected. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Failures or delays in the commencement or completion of our planned clinical trials of beloranib could
result in increased costs to us and could delay, prevent or limit our ability to generate revenue and continue our business. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We
initiated our Phase&nbsp;3 clinical program of beloranib as a treatment for obesity and hyperphagia in patients with PWS in the United States in September 2014 (ZAF-311). We plan to initiate our second Phase 3 trial primarily in the
European&nbsp;Union in patients with PWS in the third quarter of 2015 (ZAF-312). We also initiated a Phase&nbsp;2b clinical trial of beloranib as a treatment for severe obesity in patients who also have type 2 diabetes in December 2014 in Australia.
Despite the guidance received from, and to be received from, these regulatory authorities, both the FDA and the EMA can change their positions on the acceptability of our trial designs or the clinical endpoints selected, which may require us to
complete additional clinical trials or impose stricter approval conditions than we currently expect. Successful completion of such clinical trials is a prerequisite to submitting an NDA to the FDA and an MAA to the EMA and, consequently, the
ultimate approval and commercial marketing of beloranib. We do not know whether any clinical trials will begin or be completed on schedule, if at all, as the commencement and completion of clinical trials can be delayed or prevented for a number of
reasons, including, among others: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the FDA or EMA may place an ongoing clinical trial on hold or may deny permission to pursue other clinical trials we want to initiate; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">delays in regulatory filing or receiving regulatory approvals or additional investigational new drug applications, or INDs, or clinical trial applications, or CTAs, that may be required; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">negative results from our ongoing pre-clinical studies, or the FDA or EMA may require additional pre-clinical studies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">delays in reaching or failing to reach agreement on acceptable terms with prospective CROs and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different
CROs and trial sites; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">inadequate quantity or quality of a product candidate or other materials necessary to conduct clinical trials, for example delays in the manufacturing of sufficient supply of finished drug product; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">difficulties obtaining Institutional Review Board, or IRB, and/or ethics committee approval to conduct a clinical trial at a prospective site or sites in the United States or the European Union; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">challenges in recruiting and enrolling patients to participate in clinical trials, including the size and nature of the patient population, the proximity of patients to trial sites, eligibility criteria for the clinical
trial, the nature of the clinical trial protocol, the availability of approved effective treatments for the relevant disease and competition from other clinical trial programs for similar indications; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">severe or unexpected drug-related side effects experienced by patients in a clinical trial, including side effects previously identified in our completed clinical trials; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">delays in validating the PWS HQ-CT or any other self-reported measures of hunger and related endpoints utilized in a clinical trial, including delays caused as a result of the need to translate the PWS HQ-CT or other
self-reported measures of hunger into European languages other than English; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the FDA or EMA may disagree with our clinical trial design and our interpretation of data from clinical trials, or may change the requirements for approval even after it has reviewed and commented on the design for our
clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">reports from pre-clinical or clinical testing of other weight loss therapies that raise safety or efficacy concerns; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">difficulties retaining patients who have enrolled in a clinical trial but may be prone to withdraw due to rigors of the clinical trials, lack of efficacy, side effects, personal issues or loss of interest.
</TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Clinical trials may also be delayed or terminated as a result of ambiguous or negative interim results. In addition, a
clinical trial may be suspended or terminated by us, the FDA, other regulatory authorities, the IRBs, or ethics committees, at the sites where the IRBs or ethics committees are overseeing a clinical trial, a data and safety monitoring board, or
DSMB, or Safety Monitoring Committee, or SMC, overseeing the clinical trial at issue or other regulatory authorities due to a number of factors, including, among others: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">inspection of the clinical trial operations or trial sites by the FDA or EMA that reveals deficiencies or violations that require us to undertake corrective action, including the imposition of a clinical hold;
</TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">unforeseen safety issues, including any that could be identified in our ongoing pre-clinical studies, adverse side effects or lack of effectiveness; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">changes in government regulations or administrative actions; </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">29 </P>


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<TD ALIGN="left" VALIGN="top">problems with clinical supply materials; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">lack of adequate funding to continue the clinical trial. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Changes in regulatory requirements, FDA
guidance or guidance from EMA or unanticipated events during our clinical trials of beloranib may occur, which may result in changes to clinical trial protocols or additional clinical trial requirements, which could result in increased costs to us
and could delay our development timeline. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Changes in regulatory requirements, FDA guidance or guidance from EMA or unanticipated
events during our clinical trials may force us to adjust our clinical program or the FDA or EMA may impose additional clinical trial and/or pre-clinical study requirements. For instance, the FDA issued draft guidance on developing products for
weight management in February 2007, but this guidance may be revised in the near future. In March 2012, the FDA&#146;s Endocrinologic and Metabolic Drugs Advisory Committee met to discuss possible changes to how the FDA evaluates the cardiovascular
safety of weight-management drugs and although new guidance has not been issued yet it may occur any time. Amendments to our clinical trial protocols would require resubmission to the FDA or EMA, as well as IRBs and ethics committees for review and
approval, which may adversely impact the cost, timing or successful completion of a clinical trial. If we experience delays completing, or if we terminate, any of our clinical trials, or if we are required to conduct additional clinical trials
and/or pre-clinical studies, the commercial prospects for beloranib may be harmed and our ability to generate product revenue will be delayed. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We
rely, and expect that we will continue to rely, on third parties to conduct any future clinical trials for beloranib. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to
obtain regulatory approval for or commercialize beloranib and our business could be substantially harmed. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We enter into
agreements with third-party CROs to provide monitors for and to manage data for our ongoing clinical trials. We rely heavily on these parties for execution of clinical trials for beloranib and control only certain aspects of their activities. As a
result, we have less direct control over the conduct, timing and completion of these clinical trials and the management of data developed through the clinical trials than would be the case if we were relying entirely upon our own staff.
Communicating with outside parties can also be challenging, potentially leading to mistakes as well as difficulties in coordinating activities. Outside parties may: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">have staffing difficulties; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">fail to comply with contractual obligations; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">experience regulatory compliance issues; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">undergo changes in priorities or become financially distressed; or </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">form relationships with other entities, some of which may be our competitors. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">These factors
may materially adversely affect the willingness or ability of third parties to conduct our clinical trials and may subject us to unexpected cost increases that are beyond our control. Nevertheless, we are responsible for ensuring that each of our
trials is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards, and our reliance on CROs does not relieve us of our regulatory responsibilities. We and our CROs are required to comply with current Good
Clinical Practices, or cGCPs, which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for any products in clinical
development. The FDA enforces these cGCP regulations through periodic inspections of clinical trial sponsors, principal investigators and trial sites, IRBs, ethics committees, and other vendors that may be involved in the clinical development of new
products. If we or our CROs fail to comply with applicable cGCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical
trials before approving our marketing applications. We cannot assure you that, upon inspection, the FDA will determine that any of our clinical trials comply with cGCPs. In addition, our clinical trials must be conducted with product produced under
current Good Manufacturing Practices, or cGMPs regulations, to assure the identity, strength, quality, and purity of our drug product candidates being used in the clinical trials, as well as the to-be-marketed formulation and product. Our failure or
the failure of our CROs and/or contract manufacturing organizations, or CMOs, to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement
action up to and including civil and criminal penalties. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Although we do design our clinical trials for beloranib, CROs conduct all of the
clinical trials. As a result, many important aspects of our drug development programs are outside of our direct control. In addition, the CROs may not perform all of their obligations under arrangements with us or in compliance with regulatory
requirements, but we remain responsible and are subject to enforcement action that may include civil penalties up to and including criminal prosecution for any violations of FDA laws and regulations during the conduct of our clinical trials. If the
CROs do not perform clinical trials in a satisfactory manner, breach their obligations to us, or fail to comply with regulatory requirements, the development and commercialization of beloranib may be delayed or our development program materially and
irreversibly harmed. We cannot control the amount and timing of resources these CROs devote to our program or beloranib. If we are unable to rely on clinical data collected by our CROs, we could be required to repeat, extend the duration of, or
increase the size of our clinical trials and this could significantly delay commercialization and require significantly greater expenditures. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If any of our relationships with these third-party CROs terminate, we may not be able to enter
into arrangements with alternative CROs in a timely manner, or at all. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the
clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, any such clinical trials may be extended, delayed or terminated, and we may not be able to obtain
regulatory approval for or successfully commercialize beloranib. As a result, our financial results and the commercial prospects for beloranib in the subject indication would be harmed, our costs could increase and our ability to generate revenue
could be delayed. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>The number of patients suffering from each of PWS and HIAO is small and has not been established with precision. If the actual
number of patients with either of these conditions is smaller than we estimate or if any approval that we obtain is based on a narrower definition of these patient populations, our revenue and ability to achieve profitability will be adversely
affected, possibly materially. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">There is no current comprehensive patient registry or other method of establishing with precision
the actual number of patients with PWS or HIAO in any geography. Published population studies estimate that the prevalence of PWS in the United States and in the European Union ranges from 1 in 8,000 to 1 in 50,000. Published population studies
estimate that the incidence of craniopharyngioma, the leading cause of HIAO, is 0.13 to 0.17&nbsp;per 100,000&nbsp;per year, or approximately 400 to 500 cases per year in the United States and 650 to 850&nbsp;cases&nbsp;per year in the European
Union. The total addressable market opportunity for beloranib for the treatment of patients with PWS or HIAO will ultimately depend upon, among other things, the diagnosis criteria included in the final label for beloranib, if approved for sale for
these indications, acceptance by the medical community and patient access, product pricing and reimbursement.&nbsp;If the actual number of patients with PWS or HIAO is lower than we believe or if any approval that we obtain is based on a narrower
definition of these patient populations, then the potential markets for beloranib for these indications will be smaller than we anticipate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition, we plan to seek approval of beloranib initially for the treatment of adolescent and adult patients, 12 years of age and older,
with PWS and adolescent and adult patients with HIAO.&nbsp;We believe that approximately 40-50% of patients with PWS are 12 years of age or older. We are currently engaged in early discussions with the FDA and EMA regarding plans for development of
beloranib for the treatment of pediatric patients under the age of 12 years old. To support approval for pediatric patients (younger than 12 years of age) we will need to conduct pediatric clinical trials of beloranib for the treatment of these
patients with PWS, but we do not yet have plans regarding when these trials will commence. As a result, any FDA and EMA approval would likely, at least initially, be limited to use for treating adolescent and adult patients with PWS or adolescent
and adult patients with HIAO. This would limit our initial product revenue and may make it more difficult for us to achieve or maintain profitability. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We rely completely on third-party suppliers to manufacture our clinical drug supplies for beloranib, and we intend to rely on third parties to produce
commercial supplies of beloranib and pre-clinical, clinical and commercial supplies of any future product candidate. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We do not
currently have, nor do we currently plan to acquire, the infrastructure or capability to internally manufacture our clinical drug supply of beloranib, or any future product candidates, for use in the conduct of our pre-clinical studies and clinical
trials, and we lack the internal resources and the capability to manufacture any product candidates on a clinical or commercial scale. The facilities used by our CMOs to manufacture the active drug substance, sterile drug substance and final drug
product must be approved by the FDA and other comparable foreign regulatory agencies pursuant to inspections that would be conducted after we submit our NDA or relevant foreign regulatory submission to the applicable regulatory agency. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We do not control the manufacturing process of, and are completely dependent on, our CMOs to comply with cGMPs for manufacture of active drug
substance, sterile drug substance and finished drug products. If our CMOs cannot successfully manufacture material that conforms to our specifications and the regulatory requirements of the FDA or applicable foreign regulatory agencies, the CMOs
will not be able to secure and/or maintain regulatory approval for their manufacturing facilities. While we manage our quality expectations through an audit program for our vendors and suppliers, we have no direct control over our CMOs&#146; ability
to maintain adequate quality control, quality assurance and qualified personnel. Furthermore, our CMOs are engaged with third party vendors to supply and/or manufacture starting materials or components for them, which exposes our CMOs to regulatory
risks for the production of such materials and components. As a result, failure to satisfy the regulatory requirements for the production of those materials and components may affect the regulatory clearance of our CMOs&#146; facilities generally.
If the FDA or an applicable foreign regulatory agency does not approve these facilities for the manufacture of our product candidates or if it withdraws its approval in the future, we may need to find alternative manufacturing facilities, which
would adversely impact our ability to develop, obtain regulatory approval for or market our product candidates. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We control our clinical trial supply chain by periodically meeting to assess clinical trial
material needs and status of supply. Clinical trial materials are forecasted on a six month rolling basis taking into account enrollment rates, number of sites, component inventory and clinical kit shelf-life.&nbsp;The clinical supply forecast is
maintained internally and used to aid in decision making for cGMP manufacturing as well as clinical kit packaging and labeling. In addition, the CROs we contract with maintain an inventory of all clinical kits that are allocated for a clinical trial
as well as all components needed for the clinical kits. Our cross-functional internal working group discusses inventory on a regular basis. Distribution of kits to clinical sites is controlled via a validated system thus helping to manage inventory
at the CRO. Resupply of finished drug product is in progress at our drug product CMO. The manufacturing process is under active development and is not yet validated.&nbsp;Any delays encountered with manufacturing activities, CMO scheduling, or raw
material supply could delay the manufacturing of finished drug product. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Currently each batch of beloranib is individually contracted
under a quality and supply agreement. The manufacture of primary stability batches for active drug substance, sterile drug substance and drug product have been completed and stability has been initiated, CMOs are currently supporting clinical
activities, however CMOs that will manufacture commercial cGMP batches for beloranib will need to be approved by the FDA and other applicable foreign regulatory agencies, prior to commercialization. We plan to continue to rely upon CMOs and,
potentially, collaboration partners to manufacture commercial quantities of beloranib, if approved. We are in the process of establishing long-term supply agreements with our current CMOs and vendors. Our current scale of manufacturing is adequate
to support all of our needs for clinical trial supplies and launch for orphan markets. For peak usage in orphan markets and for indications with larger populations of affected patients, we will need to identify CMOs or partners to produce beloranib
on a larger scale. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>If we are unable to establish sales and marketing capabilities or enter into agreements with third parties to market and sell
beloranib, we may not be able to generate any revenue. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We do not currently have an infrastructure for the sales, marketing and
distribution of pharmaceutical products. In order to market beloranib, if approved by the FDA or any other regulatory body, we must build our sales, marketing, managerial and other non-technical capabilities or make arrangements with third parties
to perform these services. If we are unable to establish adequate sales, marketing and distribution capabilities, whether independently or with third parties, or if we are unable to do so on commercially reasonable terms, our business, results of
operations, financial condition and prospects will be materially adversely affected. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Even if we receive marketing approval for beloranib in the
United States, we may never receive regulatory approval to market beloranib outside of the United States. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We intend to pursue
marketing approval of beloranib in the European Union and in other countries worldwide. In order to market any product outside of the United States, we must establish and comply with the numerous and varying safety, efficacy and other regulatory
requirements of other countries, including potential additional clinical trials and/or nonclinical studies. Approval procedures vary among countries and can involve additional product candidate testing and additional administrative review periods.
The time required to obtain approvals in other countries might differ from that required to obtain FDA approval. The marketing approval processes in other countries may implicate all of the risks detailed above regarding FDA approval in the United
States as well as other risks. In particular, in many countries outside of the United States, products must receive pricing and reimbursement approval before the product can be commercialized. Obtaining this approval can result in substantial delays
in bringing products to market in such countries. Marketing approval in one country does not necessarily ensure marketing approval in another, but a failure or delay in obtaining marketing approval in one country may have a negative effect on the
regulatory process or commercial activities in others. Failure to obtain marketing approval in other countries or any delay or other setback in obtaining such approval would impair our ability to market beloranib in such foreign markets. Any such
impairment would reduce the size of our potential market, which could have a material adverse impact on our business, results of operations and prospects. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Even if we receive marketing approval for beloranib, it may not achieve broad market acceptance, which would limit the revenue that we generate from its
sales. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The commercial success of beloranib, if approved for marketing by the FDA or EMA or other applicable regulatory
authorities, will depend upon the awareness and acceptance of beloranib among the medical community, including physicians, patients, advocacy groups and healthcare payors. Market acceptance of beloranib, if approved, will depend on a number of
factors, including, among others: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">beloranib&#146;s demonstrated ability to treat obesity and hyperphagia in patients with PWS, obesity in patients with HIAO, or patients with severe obesity in the general population and, if required by any applicable
regulatory authority in connection with the approval for these indications, to provide patients with incremental health benefits, as compared with other available weight loss therapies, devices or surgeries; </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">32 </P>


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<TD ALIGN="left" VALIGN="top">the relative convenience and ease of subcutaneous injections as the necessary method of administration of beloranib, including as compared with other treatments for severely obese patients; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the prevalence and severity of any adverse side effects associated with beloranib, such as nausea, vomiting, headaches and difficulty sleeping or falling asleep; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">limitations or warnings contained in the labeling approved for beloranib by the FDA, EMA, or other regulatory authorities, such as a pregnancy Category X limitation; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">availability of alternative treatments, including a number of competitive obesity therapies already approved or expected to be commercially launched in the near future; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the strength of marketing and distribution support and timing of market introduction of competitive products; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">publicity concerning our products or competing products and treatments; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">pricing and cost effectiveness; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the effectiveness of our sales and marketing strategies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">our ability to increase awareness of beloranib through marketing efforts; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">our ability to obtain sufficient third-party coverage or reimbursement; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the willingness of patients to pay out-of-pocket in the absence of third-party coverage; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
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<TD ALIGN="left" VALIGN="top">the likelihood that the FDA may require development of a REMS, as a condition of approval or post-approval or may not agree with our proposed REMS or may impose additional requirements that limit the promotion,
advertising, distribution or sales of beloranib. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">If beloranib is approved but does not achieve an adequate level of acceptance by patients,
advocacy groups, physicians and payors, we may not generate sufficient revenue from beloranib to become or remain profitable. Before granting reimbursement approval, healthcare payors may require us to demonstrate that, in addition to treating
obesity in patients, beloranib also provides incremental health benefits to patients. Our efforts to educate the medical community and third-party payors about the benefits of beloranib may require significant resources and may never be successful.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our product candidates may cause undesirable side effects that could delay or prevent their regulatory approval, limit the commercial profile of an
approved label, or result in significant negative consequences following marketing approval, if any. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Undesirable side effects
caused by our product candidates could cause us or regulatory authorities such as the FDA and/or the EMA to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the
FDA or other regulatory authorities. In our recently completed Phase 2 clinical trials of beloranib, the main adverse events, or AEs, including those leading to premature treatment discontinuation, in patients dosed with beloranib, have been
dizziness, sleep disturbances, principally manifested as delayed onset of sleep, as well as nausea and vomiting. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The safety data we have
disclosed to date represents our interpretation of the data at the time of disclosure and it is subject to our further review and analysis. There have been no serious adverse events, or SAEs, attributed to beloranib in our completed clinical trials.
However, SAEs that are not characterized by clinical investigators as possibly related to beloranib or SAEs that occur in small numbers may not be disclosed to the public until such time the various documents submitted to the FDA as part of the
approval process are made public. We are unable to determine if the subsequent disclosure of SAEs will have an adverse effect on our stock price. In addition, our interpretation of the safety data from our clinical trials is contingent upon the
review and ultimate approval of the FDA or other regulatory authorities. The FDA or other regulatory authorities may not agree with our methods of analyses or our interpretation of the results. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">33 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Further, if beloranib receives marketing approval and we or others identify undesirable side
effects caused by the product (or any other similar product) after the approval, a number of potentially significant negative consequences could result, including: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">regulatory authorities may request that we withdraw the product from the market or may limit their approval of the product through labeling or other means; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">regulatory authorities may require the addition of labeling statements, such as a &#147;boxed&#148; warning or a contraindication or a precaution; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we may be required to change the way the product is distributed or administered, conduct additional clinical trials or change the labeling of the product; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we may decide to remove the products from the marketplace; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we could be sued and held liable for injury caused to individuals exposed to or taking our product candidates; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our reputation may suffer. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any of these events could prevent us from achieving or maintaining
market acceptance of the affected product candidate and could substantially increase the costs of commercializing our product candidates and significantly impact our ability to successfully commercialize our product candidates and generate revenues.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Even if we receive marketing approval for beloranib, we may still face future development and regulatory difficulties. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Even if we receive marketing approval for beloranib, regulatory authorities may still impose significant restrictions on beloranib&#146;s
indicated uses or marketing or impose ongoing requirements for potentially costly post-approval studies. Beloranib will also be subject to ongoing FDA and EMA requirements governing the labeling, packaging, storage and promotion of the product and
recordkeeping and submission of safety and other post-market information. The FDA has significant post-market authority, including, for example, the authority to require labeling changes based on new safety information and to require post-market
studies or clinical trials to evaluate serious safety risks related to the use of a drug. The FDA also has the authority to require, as part of an NDA or post-approval, the submission of a REMS. Any REMS required by the FDA may lead to increased
costs to assure compliance with new post-approval regulatory requirements and potential requirements or restrictions on the sale of approved products, all of which could lead to lower sales volume and revenue. Additionally, FDA may require PMS
and/or PMRs PMS, that could represent and result in additional restrictions and/or limitations for the product. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Manufacturers of drug
products and their facilities are subject to continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMPs and other regulations. If we or a regulatory agency discover problems with beloranib, such
as adverse events of unanticipated severity or frequency, or problems with the facility where beloranib is manufactured, a regulatory agency may impose restrictions on beloranib, the manufacturer or us, including requiring withdrawal of beloranib
from the market or suspension of manufacturing. If we or the manufacturing facilities for beloranib fail to comply with applicable regulatory requirements, a regulatory agency may, among other things: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">issue warning letters or untitled letters; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seek an injunction or impose civil or criminal penalties or monetary fines; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">suspend or withdraw marketing approval; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">suspend any ongoing clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">refuse to approve pending applications or supplements to applications submitted by us; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">suspend or impose restrictions on operations, including costly new manufacturing requirements; or </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">seize or detain products, refuse to permit the import or export of products, or request that we initiate a product recall. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Competing technologies could emerge, including devices and surgical procedures, adversely affecting our opportunity to generate revenue from the sale of
beloranib. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant
technological change. We have competitors in a number of jurisdictions, many of which have substantially greater name recognition, commercial infrastructures and financial, technical and personnel resources than we have. Established competitors may
invest heavily to quickly discover and develop novel compounds that could make beloranib obsolete or uneconomical. Any new product that competes with an approved product may need to demonstrate compelling advantages in efficacy, convenience,
tolerability and safety to be commercially successful. Other competitive factors, including generic competition, could force us to lower prices or could result in reduced sales. In addition, new products developed by others could emerge as
competitors to beloranib. If we are not able to compete effectively against our current and future competitors, our business will not grow and our financial condition and operations will suffer. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">34 </P>


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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">There are no current pharmacological treatments for regulating hunger and hyperphagia-related
behaviors of patients with PWS or hunger of patients with HIAO, and bariatric surgery is contraindicated in patients with PWS and is not frequently employed in patients with HIAO. We are aware of a clinical trial that was recently completed by
Ferring Pharmaceuticals, Inc. to evaluate the use of carbetocin, an analogue of a brain peptide hormone oxytocin hypothesized to increase trust, reduce anxiety and improve behavior in patients with PWS. We also are aware of a clinical trial being
conducted by Essentialis, Inc. to evaluate the safety and tolerability of controlled-release diazoxide in patients with PWS and to explore the effects of diazoxide on hyperphagia-related behaviors and energy expenditure. We are aware of a Phase 2
trial in its early phase of execution, by Rhythm Pharmaceuticals, Inc. to evaluate the effect of treatment with RM-493, a melanocortin receptor agonist, in patients with PWS. In addition, any of our competitors may develop a drug to treat patients
with PWS at any time. Also, Alize Pharma recently started a Phase 2 clinical trial in PWS of AZP-531, its unacylated ghrelin analog. We are not aware of any clinical trials of drugs specifically targeting patients with HIAO. Other potential
competitors in the severe obesity market include bariatric service providers, and other potential approaches which utilize various implantable devices or surgical tools that have been cleared by the FDA, such as EnteroMedics Inc.&#146;s VBlock
Therapy, or that are in development by companies such as Allergan, Inc., Boston Scientific Corporation, Covidien Ltd., GI&nbsp;Dynamics, Inc., Johnson&nbsp;&amp; Johnson and Medtronic, Inc. In addition, beloranib will compete with orlistat,
phentermine/topiramate and lorcaserin and naltrexone/bupropion, approved and currently marketed pharmaceutical products in the United&nbsp;States for the treatment of obesity, and several older agents, indicated for short-term administration,
including phentermine, phendimetrazine, benzphetamine and diethylpropion. Orlistat is marketed in the United&nbsp;States by the Roche Group under the brand name Xenical and over-the-counter in the United States at half the prescribed dose by
GlaxoSmithKline under the brand name alli. In June 2013, Arena Pharmaceuticals, Inc. launched its lorcaserin product, which is marketed in the United States under the name Belviq and in September 2012, Vivus, Inc. commercially launched its
combination product, phentermine/topiramate, under the trade name Qsymia. In October 2014, Takeda Pharmaceuticals U.S.A., Inc. and Orexigen Therapeutics, Inc. launched the combination product naltrexone HCl/bupropion HCl extended-release tablets
under the name Contrave for chronic weight management in obese adults. In April 2015, Novo Nordisk launched Saxenda (liraglutide injection) for weight management in obese and overweight patients in the presence of at least one related co-morbid
condition Neurosearch A/S is also pursuing pharmaceutical treatments for obesity. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our future growth depends, in part, on our ability to penetrate
foreign markets, where we would be subject to additional regulatory burdens and other risks and uncertainties. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our future
profitability will depend, in part, on our ability to commercialize beloranib in foreign markets for which we may rely on collaborations with third parties. If we commercialize beloranib in foreign markets, we would be subject to additional risks
and uncertainties, including: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our customers&#146; ability to obtain reimbursement for beloranib in foreign markets; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our inability to directly control commercial activities because we are relying on third parties; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">different medical practices and customs in foreign countries affecting acceptance in the marketplace; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">import or export licensing requirements; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">longer accounts receivable collection times; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">longer lead times for shipping; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">language barriers for technical training; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">reduced protection of intellectual property rights in some foreign countries; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">foreign currency exchange rate fluctuations; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">the interpretation of contractual provisions governed by foreign laws in the event of a contract dispute. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Foreign sales of beloranib could also be adversely affected by the imposition of governmental controls, political and economic instability,
trade restrictions and changes in tariffs. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We are subject to healthcare laws and regulations, which could expose us to criminal sanctions, civil
penalties, contractual damages, reputational harm and diminished profits and future earnings. </I></B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">35 </P>


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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Healthcare providers, physicians and others will play a primary role in the recommendation and
prescription of beloranib, if approved. Our future arrangements with third-party payors will expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and
relationships through which we market, sell and distribute beloranib, if we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include the following: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">The federal healthcare anti-kickback statute prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to
induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made under federal healthcare programs such as Medicare and Medicaid. </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">The federal False Claims Act imposes criminal and civil penalties, including those from civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to
the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease, or conceal an obligation to pay money to the federal government. </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">The federal Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for Economic and Clinical Health Act, imposes criminal and civil liability for executing a scheme
to defraud any healthcare benefit program and also imposes obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information. </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">The federal false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for
healthcare benefits, items or services. </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">The federal transparency requirements, sometimes referred to as the &#147;Sunshine Act,&#148; under the Patient Protection and Affordable Care Act, require manufacturers of drugs, devices, biologics and medical supplies
to report to the Department of Health and Human Services information related to physician payments and other transfers of value and physician ownership and investment interests. </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Analogous state laws and regulations, such as state anti-kickback and false claims laws and transparency laws, may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by
non-governmental third-party payors, including private insurers, and some state laws require pharmaceutical companies to comply with the pharmaceutical industry&#146;s voluntary compliance guidelines and the relevant compliance guidance promulgated
by the federal government in addition to requiring drug manufacturers to report information related to payments to physicians and other healthcare providers or marketing expenditures and drug pricing. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Ensuring that our future business arrangements with third parties comply with applicable healthcare laws and regulations could be costly. It
is possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our
operations, including anticipated activities to be conducted by our sales team, were found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and
administrative penalties, damages, fines and exclusion from government funded healthcare programs, such as Medicare and Medicaid, any of which could substantially disrupt our operations. If any of the physicians or other providers or entities with
whom we expect to do business is found not to be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>The FDA and other regulatory agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses. If we are found to have
improperly promoted off-label uses, we may become subject to significant liability. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The FDA and other regulatory agencies
strictly regulate the promotional claims that may be made about prescription products, such as beloranib, if approved. In particular, a product may not be promoted for uses that are not approved by the FDA or such other regulatory agencies as
reflected in the product&#146;s approved labeling. If we receive marketing approval for beloranib as a treatment for obesity and hyperphagia in patients with PWS or patients with HIAO physicians may nevertheless prescribe beloranib to their patients
in a manner that is inconsistent with the approved label. If we are found to have promoted such off-label uses, we may become subject to significant liability. The federal government has levied large civil and criminal fines against companies for
alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The FDA has also requested that companies enter into consent decrees or permanent injunctions under which specified promotional conduct is changed or
curtailed. If we cannot successfully manage the promotion of beloranib, if approved, we could become subject to significant liability, which would materially adversely affect our business and financial condition. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">36 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Even if approved, reimbursement policies could limit our ability to sell beloranib. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Market acceptance and sales of beloranib will depend on reimbursement policies and may be affected by healthcare reform measures. Government
authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement levels for those medications. Cost containment is a primary concern in
the U.S. healthcare industry and elsewhere. Government authorities and these third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications. We cannot be sure that reimbursement
will be available for beloranib and, if reimbursement is available, the level of such reimbursement. Reimbursement may impact the demand for, or the price of, beloranib. If reimbursement is not available or is available only at limited levels, we
may not be able to successfully commercialize beloranib. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In some foreign countries, particularly in Canada and European countries, the
pricing of prescription pharmaceuticals is subject to strict governmental control. In these countries, pricing negotiations with governmental authorities can take six to 12&nbsp;months or longer after the receipt of regulatory approval and product
launch. To obtain favorable reimbursement for the indications sought or pricing approval in some countries, we may be required to conduct a clinical trial that compares the cost-effectiveness of beloranib with other available therapies. If
reimbursement for beloranib is unavailable in any country in which we seek reimbursement, if it is limited in scope or amount, if it is conditioned upon our completion of additional clinical trials, or if pricing is set at unsatisfactory levels, our
operating results could be materially adversely affected. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Even though we have received orphan drug designation for PWS, we may not receive orphan
drug exclusivity for beloranib. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As part of our business strategy, we have obtained orphan drug designation in the United States
and the European Union for beloranib for the treatment of patients with PWS. In the United States, the company that first obtains FDA approval for a designated orphan drug for the specified rare disease or condition receives orphan drug marketing
exclusivity for that drug for a period of seven years. This orphan drug exclusivity prevents the FDA from approving another application, including a full NDA to market the same drug for the same orphan indication, except in very limited
circumstances, including when the FDA concludes that the later drug is safer, more effective or makes a major contribution to patient care. For purposes of small molecule drugs, the FDA defines &#147;same drug&#148; as a drug that contains the same
active chemical entity and is intended for the same use as the drug in question. To obtain orphan drug exclusivity for a drug that shares the same active chemical entity as an already orphan designated drug, it must be demonstrated to the FDA that
the drug&nbsp;is safer or more effective than the approved orphan designated drug, or that it makes a major contribution to patient care. In addition, a designated orphan drug may not receive orphan drug exclusivity if it is approved for a use that
is broader than the indication for which it received orphan designation. In addition, orphan drug exclusive marketing rights in the United States may be lost if the FDA later determines that the request for designation was materially defective or if
the manufacturer is unable to assure sufficient quantity of the drug to meet the needs of patients with the rare disease or condition or if another drug with the same active moiety is determined to be safer, more effective, or represents a major
contribution to patient care. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In the European Union, orphan drug designation also entitles a party to financial incentives such as
reduction of fees or fee waivers. In addition, ten years of market exclusivity is granted following drug product approval, meaning that another application for marketing authorization of a later similar medicinal product for the same therapeutic
indication will generally not be approved in the European Union. This period may be reduced to six years if the orphan drug designation criteria are no longer met, including where it is shown that the product is sufficiently profitable to not
justify maintenance of market exclusivity. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our product development programs for candidates other than beloranib may require substantial financial
resources and may ultimately be unsuccessful. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition to the development of beloranib, we may pursue development of our other
early-stage development programs. None of our other potential product candidates has commenced any clinical trials, and there are a number of FDA and certain European regulatory requirements that we must satisfy before we can commence clinical
trials. Satisfaction of these requirements will entail substantial time, effort and financial resources. We may never satisfy these requirements. Any time, effort and financial resources we expend on our other early-stage development programs may
adversely affect our ability to continue development and commercialization of beloranib, and we may never commence clinical trials of such development programs despite expending significant resources in pursuit of their development. If we do
commence clinical trials of our other potential product candidates, such product candidates may never be approved by the FDA or other regulatory authorities. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Risks Relating to Our Intellectual Property Rights </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>If we are unable to adequately protect our proprietary technology or maintain issued patents which are sufficient to protect beloranib, others could
compete against us more directly, which would have a material adverse impact on our business, results of operations, financial condition and prospects. </I></B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">37 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our commercial success will depend in part on our success in obtaining and maintaining issued
patents and other intellectual property rights in the United States and elsewhere and protecting our proprietary technology. If we do not adequately protect our intellectual property and proprietary technology, competitors may be able to use our
technologies and erode or negate any competitive advantage we may have, which could harm our business and ability to achieve profitability. Our owned and licensed patents and patent applications relate to beloranib compositions of matter,
formulations, polymorphs, methods of treating obesity using dosing regimens of beloranib, and methods of treating hypothalamic obesity. The issued U.S. and European patents generally directed to beloranib compositions of matter are exclusively
licensed and will each expire in 2019.&nbsp;We own two issued U.S. patents relating to beloranib polymorph compositions of matter that will expire in 2031 and three issued U.S. patents to methods of treating obesity that will expire in 2029.&nbsp;We
own pending patent applications in Europe to beloranib polymorph composition of matter and methods of treating obesity that we expect to expire, once issued, in 2031. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, we own six issued U.S. patents, and eight pending U.S. patent applications and foreign counterpart applications, all
of which relate to beloranib. We have a license to two U.S. issued patents, one with corresponding issued foreign counterpart patents that also relate to beloranib. We also co-own one patent application relating to methods of using beloranib. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, we own one issued U.S. patent, and twelve pending U.S. patent applications with pending foreign counterpart
applications, all of which relate to our internal efforts to discover novel MetAP2 inhibitors. Of these, two pending U.S. patent applications with pending foreign counterpart patent applications relate to our early-stage product candidate ZGN-839.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, we own one issued U.S. patent, three pending U.S. patent applications with pending foreign counterpart patent
applications, and two U.S. provisional patent applications that relate to our second-generation injectable MetAP2 inhibitor program. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We
cannot provide any assurances that any of our patents have, or that any of our pending patent applications that mature into issued patents will include, claims with a scope sufficient to protect beloranib or our other product candidates. Other
parties have developed technologies that may be related or competitive to our approach, and may have filed or may file patent applications and may have received or may receive patents that may overlap or conflict with our patent applications, either
by claiming the same methods or formulations or by claiming subject matter that could dominate our patent position. The patent positions of biotechnology and pharmaceutical companies, including our patent position, involve complex legal and factual
questions, and, therefore, the issuance, scope, validity and enforceability of any patent claims that we may obtain cannot be predicted with certainty. Patents, if issued, may be challenged, deemed unenforceable, invalidated, or circumvented. U.S.
patents and patent applications may also be subject to interference proceedings, <I>ex parte</I> reexamination, or <I>inter partes</I> review proceedings, supplemental examination and challenges in district court. Patents may be subjected to
opposition, post-grant review, or comparable proceedings lodged in various foreign, both national and regional, patent offices. These proceedings could result in either loss of the patent or denial of the patent application or loss or reduction in
the scope of one or more of the claims of the patent or patent application. In addition, such proceedings may be costly. Thus, any patents that we may own or exclusively license may not provide any protection against competitors. Furthermore, an
adverse decision in an interference proceeding can result in a third party receiving the patent right sought by us, which in turn could affect our ability to develop, market or otherwise commercialize beloranib. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Furthermore, though an issued patent is presumed valid and enforceable, its issuance is not conclusive as to its validity or its
enforceability and it may not provide us with adequate proprietary protection or competitive advantages against competitors with similar products. Competitors may also be able to design around our patents. Other parties may develop and obtain patent
protection for more effective technologies, designs or methods. We may not be able to prevent the unauthorized disclosure or use of our technical knowledge or trade secrets by consultants, vendors, former employees and current employees. The laws of
some foreign countries do not protect our proprietary rights to the same extent as the laws of the United States, and we may encounter significant problems in protecting our proprietary rights in these countries. If these developments were to occur,
they could have a material adverse effect on our sales. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our ability to enforce our patent rights depends on our ability to detect
infringement. It is difficult to detect infringers who do not advertise the components that are used in their products. Moreover, it may be difficult or impossible to obtain evidence of infringement in a competitor&#146;s or potential
competitor&#146;s product. Any litigation to enforce or defend our patent rights, even if we were to prevail, could be costly and time-consuming and would divert the attention of our management and key personnel from our business operations. We may
not prevail in any lawsuits that we initiate and the damages or other remedies awarded if we were to prevail may not be commercially meaningful. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">38 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition, proceedings to enforce or defend our patents could put our patents at risk of being
invalidated, held unenforceable, or interpreted narrowly. Such proceedings could also provoke third parties to assert claims against us, including that some or all of the claims in one or more of our patents are invalid or otherwise unenforceable.
If any of our patents covering beloranib are invalidated or found unenforceable, our financial position and results of operations would be materially and adversely impacted. In addition, if a court found that valid, enforceable patents held by third
parties covered beloranib, our financial position and results of operations would also be materially and adversely impacted. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The degree
of future protection for our proprietary rights is uncertain, and we cannot ensure that: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">any of our patents, or any of our pending patent applications, if issued, will include claims having a scope sufficient to protect beloranib or any other products or product candidates; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">any of our pending patent applications will issue as patents; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we will be able to successfully commercialize beloranib, if approved, before our relevant patents expire; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we were the first to make the inventions covered by each of our patents and pending patent applications; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we were the first to file patent applications for these inventions; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">others will not develop similar or alternative technologies that do not infringe our patents; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">any of our patents will be found to ultimately be valid and enforceable; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">any patents issued to us will provide a basis for an exclusive market for our commercially viable products, will provide us with any competitive advantages or will not be challenged by third parties; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">we will develop additional proprietary technologies or product candidates that are separately patentable; or </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">that our commercial activities or products will not infringe upon the patents of others. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We
rely upon unpatented trade secrets, unpatented know-how and continuing technological innovation to develop and maintain our competitive position, which we seek to protect, in part, by confidentiality agreements with our employees and our
collaborators and consultants. We also have agreements with our employees and selected consultants that obligate them to assign their inventions to us and have non-compete agreements with some, but not all, of our consultants. It is possible that
technology relevant to our business will be independently developed by a person that is not a party to such an agreement. Furthermore, if the employees and consultants who are parties to these agreements breach or violate the terms of these
agreements, we may not have adequate remedies for any such breach or violation, and we could lose our trade secrets through such breaches or violations. Further, our trade secrets could otherwise become known or be independently discovered by our
competitors. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may infringe the intellectual property rights of others, which may prevent or delay our product development efforts and stop us
from commercializing or increase the costs of commercializing beloranib, if approved. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our success will depend in part on our
ability to operate without infringing the intellectual property and proprietary rights of third parties. We cannot assure you that our business, products and methods do not or will not infringe the patents or other intellectual property rights of
third parties. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The pharmaceutical industry is characterized by extensive litigation regarding patents and other intellectual property
rights. Other parties may allege that beloranib or the use of our technologies infringes patent claims or other intellectual property rights held by them or that we are employing their proprietary technology without authorization. Patent and other
types of intellectual property litigation can involve complex factual and legal questions, and their outcome is uncertain. Any claim relating to intellectual property infringement that is successfully asserted against us may require us to pay
substantial damages, including treble damages and attorney&#146;s fees if we are found to be willfully infringing another party&#146;s patents, for past use of the asserted intellectual property and royalties and other consideration going forward if
we are forced to take a license. In addition, if any such claim were successfully asserted against us and we could not obtain such a license, we may be forced to stop or delay developing, manufacturing, selling or otherwise commercializing
beloranib. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">39 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Even if we are successful in these proceedings, we may incur substantial costs and divert
management time and attention in pursuing these proceedings, which could have a material adverse effect on us. If we are unable to avoid infringing the patent rights of others, we may be required to seek a license, defend an infringement action or
challenge the validity of the patents in court, or redesign our products. Patent litigation is costly and time consuming. We may not have sufficient resources to bring these actions to a successful conclusion. In addition, intellectual property
litigation or claims could force us to do one or more of the following: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">cease developing, selling or otherwise commercializing beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">pay substantial damages for past use of the asserted intellectual property; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">obtain a license from the holder of the asserted intellectual property, which license may not be available on reasonable terms, if at all; and </TD></TR></TABLE>
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<TD ALIGN="left" VALIGN="top">in the case of trademark claims, redesign, or rename, beloranib to avoid infringing the intellectual property rights of third parties, which may not be possible and, even if possible, could be costly and time-consuming.
</TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any of these risks coming to fruition could have a material adverse effect on our business, results of operations,
financial condition and prospects. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual
property. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We may also be subject to claims that former employees, collaborators or other third parties have an ownership interest
in our patents or other intellectual property. Litigation may be necessary to defend against these and other claims challenging inventorship or ownership. If we fail in defending any such claims, in addition to paying monetary damages, we may lose
valuable intellectual property rights, such as exclusive ownership of, or right to use, valuable intellectual property. Such an outcome could have a material adverse effect on our business. Even if we are successful in defending against such claims,
litigation could result in substantial costs and be a distraction to management and other employees. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Obtaining and maintaining our patent
protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these
requirements. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The U.S. Patent and Trademark Office, or U.S. PTO, and various foreign governmental patent agencies require
compliance with a number of procedural, documentary, fee payment and other provisions during the patent process. There are situations in which noncompliance can result in abandonment or lapse of a patent or patent application, resulting in partial
or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be able to enter the market earlier than would otherwise have been the case. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time-consuming and
unsuccessful. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Competitors may infringe our patents or the patents of our licensors. To counter infringement or unauthorized use,
we may be required to file infringement claims, which can be expensive and time-consuming. In addition, in an infringement proceeding, a court may decide that a patent of ours or our licensors is not valid, is unenforceable and/or is not infringed,
or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one or more of our patents at risk
of being invalidated or interpreted narrowly and could put our patent applications at risk of not issuing. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Interference proceedings
provoked by third parties or brought by us may be necessary to determine the priority of inventions with respect to our patents or patent applications or those of our licensors. An unfavorable outcome could require us to cease using the related
technology or to attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Our defense of litigation or interference proceedings may
fail and, even if successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our licensors, misappropriation of our intellectual property rights, particularly in
countries where the laws may not protect those rights as fully as in the United States. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Furthermore, because of the substantial amount of
discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. There could also be public announcements of the
results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a material adverse effect on the price of our common stock. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Issued patents covering our product candidates could be found invalid or unenforceable if challenged in
court. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If we or one of our licensing partners initiated legal proceedings against a third party to enforce a patent covering our
product candidate, the defendant could counterclaim that the patent covering our product candidate is invalid and/or unenforceable. In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are
commonplace. Grounds for a validity challenge include alleged failures to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Grounds for unenforceability assertions include allegations that someone
connected with prosecution of the patent withheld relevant information from the U.S. PTO, or made a misleading statement, during prosecution. Third parties may also raise similar claims before administrative bodies in the United States or abroad,
even outside the context of litigation. Such mechanisms include re-examination, post grant review and equivalent proceedings in foreign jurisdictions, e.g., opposition proceedings. Such proceedings could result in revocation or amendment of our
patents in such a way that they no longer cover our product candidates or competitive products. The outcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to validity, for example, we cannot be certain
that there is no invalidating prior act, of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of
the patent protection on our product candidates. Such a loss of patent protection would have a material adverse impact on our business. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We do not
seek to protect our intellectual property rights in all jurisdictions throughout the world and we may not be able to adequately enforce our intellectual property rights even in the jurisdictions where we seek protection. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Filing, prosecuting and defending patents on product candidates in all countries and jurisdictions throughout the world would be prohibitively
expensive, and our intellectual property rights in some countries outside the United States could be less extensive than those in the United States. In addition, the laws of some foreign countries do not protect intellectual property rights to the
same extent as federal and state laws in the United&nbsp;States. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made using
our inventions in and into the United States or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop their own products and further, may export otherwise infringing
products to territories where we have patent protection, but enforcement is not as strong as that in the United States. These products may compete with our products and our patents or other intellectual property rights may not be effective or
sufficient to prevent them from competing. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Many companies have encountered significant problems in protecting and defending intellectual
property rights in foreign jurisdictions. The legal systems of certain countries, particularly certain developing countries, do not favor the enforcement of patents and other intellectual property protection, particularly those relating to
biopharmaceuticals, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights generally. For example, an April 2014 report from the Office of the United
States Trade Representative identified a number of countries, including India and China, where challenges to the procurement and enforcement of patent rights have been reported. Several countries, including India and China, have been listed in the
report every year since 1989. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being
invalidated or interpreted narrowly, could put our patent applications at risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded,
if any, may not be commercially meaningful. Accordingly, our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or
license. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We are dependent on licensed intellectual property. If we were to lose our rights to licensed intellectual property, we may not be able to
continue developing or commercializing beloranib or our other product candidates, if approved. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have licensed our rights to
beloranib from Chong Kun Dang Pharmaceutical Corp. of South Korea, or CKD. Our license with CKD imposes various obligations on us, including a requirement to use commercially reasonable efforts to develop beloranib and provides CKD the right to
terminate the license thereunder in the event of a material breach. For example, CKD may allege that we have breached our license agreement and may accordingly seek to terminate our license with them. Termination of our license from CKD could result
in our loss of the right to use the licensed intellectual property, which could materially adversely affect our ability to develop and commercialize beloranib, if approved, as well as harm our competitive business position and our business
prospects. We also have an exclusive license with Children&#146;s Medical Center Corporation, or Children&#146;s, pursuant to which we exclusively licensed certain patient rights relating to decreasing the growth of fat tissue from Children&#146;s
on a worldwide basis. We may enter into additional license(s) to third-party intellectual property that are necessary or useful to our business. Future licensor(s) may also allege that we have breached our license agreement and may accordingly seek
to terminate our license with them. In addition, future licensor(s) may decide to terminate our license at will. If successful, this could result in our loss of the right to use the licensed intellectual property, which could materially adversely
affect our ability to develop and commercialize a product candidate or product, if approved, as well as harm our competitive business position and our business prospects. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We have not yet registered trademarks for a commercial trade name for beloranib and failure to secure such
registrations could adversely affect our business. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have not yet registered trademarks for a commercial trade name for
beloranib. Any future trademark applications may be rejected during trademark registration proceedings. Although we would be given an opportunity to respond to those rejections, we may be unable to overcome such rejections. In addition, in the
U.S.&nbsp;PTO and in comparable agencies in many foreign jurisdictions, third parties are given an opportunity to oppose pending trademark applications and to seek to cancel registered trademarks. Opposition or cancellation proceedings may be filed
against our trademarks, and our trademarks may not survive such proceedings. Moreover, any name we propose to use with our product candidates in the United States must be approved by the FDA, regardless of whether we have registered it, or applied
to register it, as a trademark. The FDA typically conducts a review of proposed product names, including an evaluation of potential for confusion with other product names. If the FDA objects to any of our proposed proprietary product names, we may
be required to expend significant additional resources in an effort to identify a suitable substitute name that would qualify under applicable trademark laws, not infringe the existing rights of third parties and be acceptable to the FDA. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>If we do not obtain additional protection under the Hatch-Waxman Amendments and similar foreign legislation by extending the patent terms and obtaining
data exclusivity for beloranib, our business may be materially harmed. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Depending upon the timing, duration and specifics of FDA
marketing approval of beloranib, one or more of the U.S. patents we license may be eligible for limited patent term restoration under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Amendments. The
Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, we may not be granted an extension because of, for example,
failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements. Moreover, the applicable time period or the scope of patent protection afforded could be
less than we request. If we are unable to obtain patent term extension or restoration or the term of any such extension is less than we request, our competitors may obtain approval of competing products following our patent expiration, and our
ability to generate revenues could be materially adversely affected. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Changes in U.S. patent law could diminish the value of patents in general,
thereby impairing our ability to protect our products. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The United&nbsp;States has recently enacted and is currently implementing
the America Invents Act of 2011, which is wide-ranging patent reform legislation. Further, the U.S. Supreme Court has ruled on several patent cases in recent years, either narrowing the scope of patent protection available in certain circumstances
or weakening the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain future patents, this combination of events has created uncertainty with respect to the value of patents, once
obtained. Depending on decisions by the U.S. Congress, the federal courts and the U.S. PTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing
patents or future patents. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may be subject to damages resulting from claims that we or our employees have wrongfully used or disclosed alleged
trade secrets of their former employers. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our employees have been previously employed at other biotechnology or pharmaceutical
companies, including our competitors or potential competitors. Although we are not aware of any claims currently pending against us, we may be subject to claims that these employees or we have inadvertently or otherwise used or disclosed trade
secrets or other proprietary information of the former employers of our employees. Litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs
and be a distraction to management. If we fail in defending such claims, in addition to paying money claims, we may lose valuable intellectual property rights or personnel. A loss of key personnel or their work product could hamper or prevent our
ability to commercialize beloranib, which would materially adversely affect our commercial development efforts. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>General Company-Related Risks </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We will need to develop and expand our company, and we may encounter difficulties in managing this development and expansion, which could disrupt our
operations. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, we had 38 full-time employees and one part-time employee, and as we advance beloranib into
later-stage clinical trials, we expect to increase our number of employees and the scope of our operations. To manage our anticipated development and expansion, we must continue to implement and improve our managerial, operational and financial
systems, expand our facilities and continue to recruit and train additional qualified personnel. Also, our management may need to divert a </P>
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disproportionate amount of its attention away from its day-to-day activities and devote a substantial amount of time to managing these development activities. Due to our limited resources, we may
not be able to effectively manage the expansion of our operations or recruit and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to operational mistakes, loss of business opportunities, loss of
employees and reduced productivity among remaining employees. The physical expansion of our operations may lead to significant costs and may divert financial resources from other projects, such as the development of beloranib. If our management is
unable to effectively manage our expected development and expansion, our expenses may increase more than expected, our ability to generate or increase our revenue could be reduced and we may not be able to implement our business strategy. Our future
financial performance and our ability to commercialize beloranib, if approved, and compete effectively will depend, in part, on our ability to effectively manage the future development and expansion of our company. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our future success depends on our ability to retain our Chief Executive Officer, and to attract, retain and motivate qualified personnel. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are highly dependent on Dr.&nbsp;Thomas&nbsp;E. Hughes, our Chief Executive Officer. We have entered into an employment agreement with
Dr.&nbsp;Hughes, but he may terminate his employment with us at any time. Although we do not have any reason to believe that we will lose the services of Dr.&nbsp;Hughes in the foreseeable future, the loss of his services might impede the
achievement of our research, development and commercialization objectives. We also do not have any key-man life insurance on Dr.&nbsp;Hughes. We rely on consultants and advisors, including scientific and clinical advisors, to assist us in
formulating our development and commercialization strategy. Our consultants and advisors may be employed by employers other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability
to us and may not be subject to our standard non-compete agreements. Recruiting and retaining qualified scientific personnel and sales and marketing personnel will also be critical to our success. We may not be able to attract and retain these
personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. We also experience competition for the hiring of scientific personnel from universities and research institutions.
Failure to succeed in clinical trials may make it more challenging to recruit and retain qualified scientific personnel. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our employees may engage
in misconduct or other improper activities, including violating applicable regulatory standards and requirements or engaging in insider trading, which could significantly harm our business. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include intentional failures to comply with
the regulations of the FDA and applicable non-U.S. regulators, provide accurate information to the FDA and applicable non-U.S. regulators, comply with healthcare fraud and abuse laws and regulations in the United States and abroad, report financial
information or data accurately or disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct,
kickbacks, self-dealing and other abusive practices. These laws and regulations restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements.
Employee misconduct could also involve the improper use of, including trading on, information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. We have adopted a code of
conduct, but it is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may be ineffective in controlling unknown or unmanaged risks or losses or in protecting us from
governmental investigations or other actions or lawsuits stemming from a failure to comply with these laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those
actions could have a significant impact on our business, including the imposition of significant fines or other sanctions. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We face potential
product liability exposure, and, if claims are brought against us, we may incur substantial liability. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The use of beloranib in
clinical trials and the sale of beloranib, if approved, exposes us to the risk of product liability claims. Product liability claims might be brought against us by patients, healthcare providers or others selling or otherwise coming into contact
with beloranib. For example, we may be sued if any product we develop allegedly causes injury or is found to be otherwise unsuitable during product testing, manufacturing, marketing or sale. Any such product liability claims may include allegations
of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, including as a result of interactions with alcohol or other drugs, negligence, strict liability and a breach of warranties. Claims could also be
asserted under state consumer protection acts. If we become subject to product liability claims and cannot successfully defend ourselves against them, we could incur substantial liabilities. In addition, regardless of merit or eventual outcome,
product liability claims may result in, among other things: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">withdrawal of patients from our clinical trials; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">substantial monetary awards to patients or other claimants; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">decreased demand for beloranib or any future product candidates following marketing approval, if obtained; </TD></TR></TABLE>
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<TD ALIGN="left" VALIGN="top">damage to our reputation and exposure to adverse publicity; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">increased FDA warnings on product labels; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">litigation costs; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">distraction of management&#146;s attention from our primary business; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">loss of revenue; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the inability to successfully commercialize beloranib or any future product candidates, if approved. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We maintain product liability insurance coverage for our clinical trials with a $10.0 million annual aggregate coverage limit. Nevertheless,
our insurance coverage may be insufficient to reimburse us for any expenses or losses we may suffer. Moreover, in the future, we may not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against
losses, including if insurance coverage becomes increasingly expensive. If and when we obtain marketing approval for beloranib, we intend to expand our insurance coverage to include the sale of commercial products; however, we may not be able to
obtain this product liability insurance on commercially reasonable terms. Large judgments have been awarded in class action lawsuits based on drugs that had unanticipated side effects. The cost of any product liability litigation or other
proceedings, even if resolved in our favor, could be substantial, particularly in light of the size of our business and financial resources. A product liability claim or series of claims brought against us could cause our stock price to decline and,
if we are unsuccessful in defending such a claim or claims and the resulting judgments exceed our insurance coverage, our financial condition, business and prospects could be materially adversely affected. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We must maintain effective internal control over financial reporting, and if we are unable to do so, the accuracy and timeliness of our financial
reporting may be adversely affected, which could have a material adverse effect on our business and stock price. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We must maintain
effective internal control over financial reporting in order to accurately and timely report our results of operations and financial condition. In addition, as a public company, the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, requires,
among other things, that we assess the effectiveness of our disclosure controls and procedures quarterly and the effectiveness of our internal control over financial reporting at the end of each fiscal year. We anticipate being first required to
issue management&#146;s annual report on internal control over financial reporting, pursuant to Section&nbsp;404 of the Sarbanes-Oxley Act, in connection with issuing our consolidated financial statements as of and for the year ending
December&nbsp;31, 2016. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The rules governing the standards that must be met for our management to assess our internal control over
financial reporting pursuant to Section&nbsp;404 of the Sarbanes-Oxley Act are complex and require significant documentation, testing and possible remediation. These stringent standards require that our audit committee be advised and regularly
updated on management&#146;s review of internal control over financial reporting. Our management may not be able to effectively and timely implement controls and procedures that adequately respond to the increased regulatory compliance and reporting
requirements that will be applicable to us as a public company. If we fail to staff our accounting and finance function adequately or maintain internal control over financial reporting adequate to meet the demands that will be placed upon us as a
public company, including the requirements of the Sarbanes-Oxley Act, our business and reputation may be harmed and our stock price may decline. Furthermore, investor perceptions of us may be adversely affected, which could cause a decline in the
market price of our common stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>In order to satisfy our obligations as a public company, we will need to hire additional qualified accounting and
financial personnel with appropriate public company experience. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">As a newly public company, we need to establish and maintain effective disclosure
and financial controls and make changes in our corporate governance practices. We will need to hire additional accounting and financial personnel with appropriate public company experience and technical accounting knowledge, and it may be difficult
to recruit and maintain such personnel. Even if we are able to hire appropriate personnel, our existing operating expenses and operations will be impacted by the direct costs of their employment and the indirect consequences related to the diversion
of management resources from product development efforts. <B><I> </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our ability to use our net operating loss carryforwards and certain tax
credit carryforwards may be subject to&nbsp;limitation. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of December&nbsp;31, 2014, we had federal and state net operating loss
carryforwards of $17.0 million and $9.6 million, respectively. Our federal net operating loss carryforwards begin to expire in 2026 and our state net operating loss carryforwards begin to expire in 2030. As of December&nbsp;31, 2014, we also had
federal and state research and development tax credit carryforwards of $7.7 million and $1.9 million, respectively, which begin to expire in 2026 and 2021, respectively. Under Section&nbsp;382 of the Internal Revenue Code of 1986, as amended, or the
Code, changes in our ownership may limit the amount of our net operating loss carryforwards and research and development tax credit carryforwards that could be utilized annually to offset our future taxable income, if any. This limitation would
generally apply in the event of a cumulative change in ownership of our company of more than 50% within a three-year period. Any such limitation may significantly reduce our ability to utilize our net operating loss carryforwards and research and
development tax credit carryforwards before they expire. Our recent follow-on public offering, IPO, private </P>
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placements and other transactions that have occurred since our inception, may trigger such an ownership change pursuant to Section&nbsp;382. Any such limitation, whether as the result of our
recent follow-on public offering, IPO, prior private placements, sales of our common stock by our existing stockholders or additional sales of our common stock by us, could have a material adverse effect on our results of operations in future years.
We have not completed a study to assess whether an ownership change for purposes of Section&nbsp;382 has occurred, or whether there have been multiple ownership changes since our inception, due to the significant costs and complexities associated
with such study. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Unfavorable global economic conditions could adversely affect our business, financial condition or results of&nbsp;operations.
</I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our results of operations could be adversely affected by general conditions in the global economy and in the global financial
markets. A severe or prolonged economic downturn could result in a variety of risks to our business, including, weakened demand for our product candidates and our ability to raise additional capital when needed on acceptable terms, if at all. A weak
or declining economy could also strain our suppliers, possibly resulting in supply disruption, or cause our customers to delay making payments for our services. Any of the foregoing could harm our business and we cannot anticipate all of the ways in
which the current economic climate and financial market conditions could adversely impact our business. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our internal computer systems, or those of
our third-party CROs or other contractors or consultants, may fail or suffer security breaches, which could result in a material disruption of our beloranib development programs. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Despite the implementation of security measures, our internal computer systems and those of our third-party CROs and other contractors and
consultants are vulnerable to damage from computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. While we have not experienced any such system failure, accident, or security breach to
date, if such an event were to occur and cause interruptions in our operations, it could result in a material disruption of our programs. For example, the loss of clinical trial data for beloranib could result in delays in our regulatory approval
efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach results in a loss of or damage to our data or applications or other data or applications relating to our technology
or product candidates, or inappropriate disclosure of confidential or proprietary information, we could incur liabilities and the further development of beloranib could be delayed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may not be successful in our efforts to identify or discover additional product candidates. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The success of our business depends primarily upon our ability to identify, develop and commercialize products based on our weight loss
platform. Although beloranib is currently in clinical development, our research programs may fail to identify other potential product candidates for clinical development for a number of reasons. Our research methodology may be unsuccessful in
identifying potential product candidates or our potential product candidates may be shown to have harmful side effects or may have other characteristics that may make the products unmarketable or unlikely to receive marketing approval. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material
adverse effect on our business and could potentially cause us to cease operations. Research programs to identify new product candidates require substantial technical, financial and human resources. We may focus our efforts and resources on potential
programs or product candidates that ultimately prove to be unsuccessful. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may acquire businesses or products, or form strategic alliances, in the
future, and we may not realize the benefits of such acquisitions or alliances. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We may acquire additional businesses or products,
form strategic alliances or create joint ventures with third parties that we believe will complement or augment our existing business. If we acquire businesses with promising markets or technologies, we may not be able to realize the benefit of such
transactions if we are unable to successfully integrate such businesses with our existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing and marketing any new products resulting from a strategic
alliance or acquisition that delay or prevent us from realizing their expected benefits or enhancing our business. We cannot assure you that, following any such transaction, we will achieve the expected synergies to justify the transaction. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Risks Related to Our Financial Position and Need for Capital </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We have not generated any revenue from product sales. We have incurred significant operating losses since our inception, and anticipate that we will
incur continued losses for the foreseeable future. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Biopharmaceutical product development is a highly speculative undertaking and
involves a substantial degree of risk. Our operations to date have been limited primarily to organizing and staffing our company and conducting research and development activities for beloranib, ZGN-839 and our second-generation MetAP2 inhibitors.
We have never generated any revenue from product sales. We have not obtained regulatory approvals for any of our product candidates. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Since our inception, we have focused substantially all of our efforts and financial resources on
developing beloranib, which is currently in Phase&nbsp;3 clinical development for our lead indication of the treatment of hyperphagia and obesity in patients with PWS and Phase 2 clinical development for the treatment of obesity in patients with
HIAO and the treatment of severe obesity in the general population. We have funded our operations to date through proceeds from sales of redeemable convertible preferred stock, convertible debt and proceeds from our IPO and follow-on public
offering, and have incurred losses in each year since our inception. Our net losses were $31.2 million for the six months ended June&nbsp;30, 2015 and $36.5 million for the year ended December&nbsp;31, 2014. As of June&nbsp;30, 2015, we had an
accumulated deficit of $136.6 million. Substantially all of our operating losses resulted from costs incurred in connection with our development programs for beloranib, ZGN-839 and our second-generation MetAP2 inhibitors, licensing milestone fees
and from general and administrative costs associated with our operations. We expect to incur increasing levels of operating losses over the next several years and for the foreseeable future. Our prior losses, combined with expected future losses,
have had and will continue to have an adverse effect on our stockholders&#146; deficit and working capital. We expect our research and development expenses to significantly increase in connection with our additional clinical trials of beloranib and
development of ZGN-839, our second-generation MetAP2 inhibitors and of any other product candidates we may choose to pursue. In addition, if we obtain marketing approval for beloranib, we will incur significant sales, marketing and outsourced
manufacturing expenses. Now that we are a public company, we will incur additional costs associated with operating as a public company. As a result, we expect to continue to incur significant and increasing operating losses for the foreseeable
future. Because of the numerous risks and uncertainties associated with developing pharmaceutical products, we are unable to predict the extent of any future losses or when we will become profitable, if at all. Even if we do become profitable, we
may not be able to sustain or increase our profitability on a quarterly or annual basis. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our ability to become profitable depends upon
our ability to generate revenue. To date, we have not generated any revenue from our lead product candidate, beloranib, and we do not know when, or if, we will generate any revenue. We do not expect to generate significant revenue unless and until
we obtain marketing approval of, and begin to sell, beloranib. Our ability to generate revenue depends on a number of factors, including, but not limited to, our ability to: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">initiate and successfully complete later-stage clinical trials that meet their clinical endpoints; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">initiate and successfully complete all safety studies required to obtain U.S. and foreign marketing approval for beloranib in the indications we are pursuing; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">commercialize beloranib, if approved, by developing a sales force or entering into collaborations with third parties; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">achieve market acceptance of beloranib in the medical community and with third-party payors. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Absent our
entering into a collaboration or partnership agreement, we expect to incur significant sales and marketing costs as we prepare to commercialize beloranib. Even if we initiate and successfully complete our pivotal clinical trials of beloranib, and
beloranib is approved for commercial sale, and despite expending these costs, beloranib may not be a commercially successful drug. We may not achieve profitability soon after generating product sales, if ever. If we are unable to generate sufficient
product revenue, we will not become profitable and may be unable to continue operations without continued funding. <B><I> </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We will need to
raise additional funding, which may not be available on acceptable terms, or at all. Failure to obtain this necessary capital when needed may force us to delay, limit or terminate our product development efforts or other operations. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are currently advancing beloranib through clinical development. Developing small molecule products is expensive, and we expect our research
and development expenses to increase substantially in connection with our ongoing activities, particularly as we advance beloranib in later-stage, more costly clinical trials. Depending on the status of regulatory approval or, if approved,
commercialization of beloranib, as well as the progress we make in selling beloranib, we may require additional capital to fund operating needs thereafter. We may also need to raise additional funds sooner if we choose to pursue additional
indications and/or geographies for beloranib or otherwise expand more rapidly than we presently anticipate. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of June&nbsp;30, 2015, our
cash and cash equivalents and marketable securities were $220.1&nbsp;million. We expect that our cash and cash equivalents will be sufficient to fund our current operations for at least the next 18 months. However, our operating plan may change as a
result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned, through public or private equity or debt financings, government or other third-party funding, marketing and distribution arrangements and
other collaborations, strategic alliances and licensing arrangements or a combination of these approaches. In any event, we will require additional capital to obtain regulatory approval for, and to commercialize, our product candidates. Raising
funds in the current economic environment may present additional challenges. Even if we believe we have sufficient funds for our current or future operating plans, we may seek additional capital if market conditions are favorable or if we have
specific strategic considerations. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any additional fundraising efforts may divert our management from their day-to-day activities,
which may adversely affect our ability to develop and commercialize our product candidates. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the terms
of any financing may adversely affect the holdings or the rights of our stockholders and the issuance of additional securities, whether equity or debt, by us, or the possibility of such issuance, may cause the market price of our shares to decline.
The sale of additional equity or convertible securities would dilute all of our stockholders. The incurrence of indebtedness would result in increased fixed payment obligations and we may be required to agree to certain restrictive covenants, such
as limitations on our ability to incur additional debt, limitations on our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. We could
also be required to seek funds through arrangements with collaborative partners or otherwise at an earlier stage than otherwise would be desirable and we may be required to relinquish rights to some of our technologies or product candidate or
otherwise agree to terms unfavorable to us, any of which may have a material adverse effect on our business, operating results and prospects. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay or discontinue one or more of our
research or development programs or the commercialization of any product candidate or be unable to expand our operations or otherwise capitalize on our business opportunities, as desired, which could materially affect our business, financial
condition and results of operations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Raising additional capital may cause dilution to our existing stockholders, restrict our operations or require
us to relinquish rights. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We may seek additional capital through a combination of private and public equity offerings, debt
financings, collaborations and strategic and licensing arrangements. To the extent that we raise additional capital through the sale of common stock or securities convertible or exchangeable into common stock, a stockholder&#146;s ownership interest
in our company will be diluted. In addition, the terms of any such securities may include liquidation or other preferences that materially adversely affect the rights of our stockholders. Debt financing, if available, would increase our fixed
payment obligations and may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds
through collaboration, strategic partnerships and licensing arrangements with third parties, we may have to relinquish valuable rights to beloranib, our intellectual property, future revenue streams or grant licenses on terms that are not favorable
to us. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Risks Related to Our Common Stock </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We
expect that our stock price may fluctuate significantly. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The market price of shares of our common stock, similar to the market
price of shares of common stock of other biopharmaceutical companies, is subject is subject to wide fluctuations, and will continue to be subject to wide fluctuations in response to many risk factors listed in this section, and others beyond our
control, including: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">plans for, progress of or results from pre-clinical studies and clinical trials of beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the failure of the FDA or the EMA to approve beloranib; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">announcements of new products, technologies, commercial relationships, acquisitions or other events by us or our competitors; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">the success or failure of other weight loss therapies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">regulatory or legal developments in the United States and other countries; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">failure of beloranib, if approved, to achieve commercial success; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">fluctuations in stock market prices and trading volumes of similar companies; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">general market conditions and overall fluctuations in U.S. equity markets; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">variations in our quarterly operating results; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">changes in our financial guidance or securities analysts&#146; estimates of our financial performance; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">changes in accounting principles; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">our ability to raise additional capital and the terms on which we can raise it; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">sales of large blocks of our common stock, including sales by our executive officers, directors and significant stockholders; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">additions or departures of key personnel; </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">47 </P>


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<TD ALIGN="left" VALIGN="top">discussion of us or our stock price by the press and by online investor communities; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">other risks and uncertainties described in these risk factors. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">These and other market and
industry factors may cause the market price and demand for our common stock to fluctuate substantially, regardless of our actual operating performance, which may limit or prevent investors from readily selling their shares of common stock and may
otherwise negatively affect the liquidity of our common stock. In addition, the stock market in general, and NASDAQ listed and biopharmaceutical companies in particular, have experienced extreme price and volume fluctuations that have often been
unrelated or disproportionate to the operating performance of these companies. In the past, when the market price of a stock has been volatile, holders of that stock have instituted securities class action litigation against the company that issued
the stock. If any of our stockholders brought a lawsuit against us, we could incur substantial costs defending the lawsuit. Such a lawsuit could also divert the time and attention of our management. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Our executive officers, directors, and principal stockholders exercise significant control over our company. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As of July&nbsp;31, 2015, the existing holdings of our executive officers, directors, principal stockholders and their affiliates, including
investment funds affiliated with Atlas Ventures, or Atlas, investment funds affiliated with Third Rock Ventures, or TRV, investment funds affiliated with Alta Partners, or Alta, and entities affiliated with Fidelity Investment, or Fidelity,
represent beneficial ownership, in the aggregate, of approximately 45% of our common stock. As a result, these stockholders, if they act together, are able to influence our management and affairs and control the outcome of matters submitted to our
stockholders for approval, including the election of directors and any sale, merger, consolidation, or sale of all or substantially all of our assets. The concentration of voting power among these stockholders may have an adverse effect on the price
of our common stock. In addition, this concentration of ownership might adversely affect the market price of our common stock by: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">delaying, deferring or preventing a change of control of us; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">impeding a merger, consolidation, takeover or other business combination involving us; or </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of us. <B><I> </I></B></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Future sales of our common stock may cause our stock price to decline. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Sales of a substantial number of shares of our common stock in the public market or the perception that these sales might occur could
significantly reduce the market price of our common stock and impair our ability to raise adequate capital through the sale of additional equity securities. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We have broad discretion in how we use the proceeds of our IPO and our follow-on public offering. We may not use these proceeds effectively, which could
affect our results of operations and cause our stock price to decline. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have considerable discretion in the application of the
net proceeds of our IPO and our follow-on public offering. We intend to use the net proceeds to advance the clinical development of beloranib as a treatment for obesity and hyperphagia in patients with PWS patients and obesity in patients with HIAO,
or patients with severe obesity in the general population and to develop multiple second-generation MetAP2 inhibitors as a treatment for severe obesity in the general population, to continue the development and initiate clinical development of
ZGN-839, to develop a pen-injector system for eventual commercial use in PWS, HIAO and severe obesity in the general population and to fund new and ongoing research and development activities, working capital and other general corporate purposes,
which may include funding for the hiring of additional personnel, capital expenditures, early commercialization activities and the costs of operating as a public company. As a result, investors will be relying upon management&#146;s judgment with
only limited information about our specific intentions for the use of the balance of the net proceeds. We may use the net proceeds for purposes that do not yield a significant return or any return at all for our stockholders. In addition, pending
their use, we may invest the net proceeds in a manner that does not produce income or that loses value. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We may be at an increased risk of
securities class action litigation. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Historically, securities class action litigation has often been brought against a company
following a decline in the market price of its securities. This risk is especially relevant for us because biotechnology and pharmaceutical companies have experienced significant stock price volatility in recent years. If we were to be sued, it
could result in substantial costs and a diversion of management&#146;s attention and resources, which could harm our business. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We are an
&#147;emerging growth company&#148; and have availed ourselves of reduced disclosure requirements applicable to emerging growth companies, which could make our common stock less attractive to investors. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We are an &#147;emerging growth company,&#148; as defined in the Jumpstart our Business Startups Act of 2012, or the JOBS Act, and we have taken advantage of
certain exemptions from various reporting requirements that are applicable to other public companies that are not </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">48 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
&#147;emerging growth companies&#148; including not being required to comply with the auditor attestation requirements of Section&nbsp;404(b) of the Sarbanes-Oxley Act, reduced disclosure
obligations regarding executive compensation in our periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments
not previously approved. In addition, Section&nbsp;107 of the JOBS Act also provides that an emerging growth company can take advantage of the extended transition period provided in Section&nbsp;7(a)(2)(B) of the Securities Act, for complying with
new or revised accounting standards. In other words, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. However, we are electing not to take advantage
of such extended transition period, and as a result we will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-emerging growth companies. Section&nbsp;107 of the JOBS Act
provides that our decision to not take advantage of the extended transition period for complying with new or revised accounting standards is irrevocable. We cannot predict if investors will find our common stock less attractive because we may rely
on any of the exemptions available under the JOBS Act. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile. We may take
advantage of these reporting exemptions until we are no longer an emerging growth company. We will remain an emerging growth company until the earliest of (i)&nbsp;the last day of the fiscal year in which we have total annual gross revenue of
$1.0&nbsp;billion or more; (ii)&nbsp;the last day of our fiscal year following the fifth anniversary of the date of the completion of our IPO; (iii)&nbsp;the date on which we have issued more than $1.0&nbsp;billion in nonconvertible debt during the
previous three years; and (iv)&nbsp;the date on which we are deemed to be a large accelerated filer under the rules of the SEC. <B><I> </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>We
have never paid dividends on our common stock and we do not anticipate paying any dividends in the foreseeable future. Consequently, any gains from an investment in our common stock will likely depend on whether the price of our common stock
increases. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have not paid dividends on any of our common stock to date and we currently intend to retain all of our future
earnings, if any, to fund the development and growth of our business. As a result, capital appreciation, if any, of our common stock will be the sole source of gains for our common stockholders for the foreseeable future. Consequently, in the
foreseeable future, our common stockholders will likely only experience a gain from their investment in our common stock if the price of our common stock increases. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>If equity research analysts do not continue to publish research or reports about our business or if they issue unfavorable commentary or downgrade our
common stock, the price of our common stock could decline. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The trading market for our common stock relies in part on the research
and reports that equity research analysts publish about us and our business. We do not control these analysts. The price of our common stock could decline if one or more equity analysts downgrade our common stock or if analysts issue other
unfavorable commentary or cease publishing reports about us or our business. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Anti-takeover provisions contained in our amended and restated
certificate of incorporation and amended and restated bylaws, as well as provisions of Delaware law, could impair a takeover attempt. </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our amended and restated certificate of incorporation, amended and restated bylaws and Delaware law contain provisions which could have the
effect of rendering more difficult, delaying or preventing an acquisition deemed undesirable by our board of directors. Our corporate governance documents include provisions: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">creating a classified board of directors whose members serve staggered three-year terms; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">authorizing &#147;blank check&#148; preferred stock, which could be issued by our board of directors without stockholder approval and may contain voting, liquidation, dividend, and other rights superior to our common
stock; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">limiting the liability of, and providing indemnification to, our directors and officers; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">limiting the ability of our stockholders to call and bring business before special meetings; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">requiring advance notice of stockholder proposals for business to be conducted at meetings of our stockholders and for nominations of candidates for election to our board of directors; </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">controlling the procedures for the conduct and scheduling of board of directors and stockholder meetings; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">providing our board of directors with the express power to postpone previously scheduled annual meetings and to cancel previously scheduled special meetings. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">These provisions, alone or together, could delay or prevent hostile takeovers and changes in control or changes in our management. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As a Delaware corporation, we are also subject to provisions of Delaware law, including Section&nbsp;203 of the Delaware General Corporation
law, which prevents some stockholders holding more than 15% of our outstanding common stock from engaging in certain business combinations without approval of the holders of substantially all of our outstanding common stock. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">49 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any provision of our amended and restated certificate of incorporation, amended and restated
bylaws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also affect the price that some investors
are willing to pay for our common stock. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">50 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_13"></A>Item&nbsp;2.&nbsp;Unregistered Sales of Equity Securities and Use of Proceeds
</B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Unregistered Sales of Equity Securities </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the closing of our IPO, all of the outstanding shares of our redeemable convertible preferred stock were converted into 15,077,621 shares
of common stock. The shares of common stock issued pursuant to such conversion were issued in reliance on the exemption from registration provided by Section&nbsp;3(a)(9)&nbsp;of the Securities Act, which exemption is available for transactions
involving securities exchanged by the issuer with its existing security holders exclusively where no commission or other remuneration is paid or given directly or indirectly for soliciting such exchange. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No underwriters were used in the foregoing transactions. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Use of Proceeds from IPO </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On
June&nbsp;24, 2014, we closed the sale of 6,900,000 shares of common stock to the public (inclusive of 900,000 shares of common stock sold by us pursuant to the full exercise of an overallotment option granted to the underwriters) at a price of
$16.00 per share, before underwriting discounts. The offer and sale of the shares in our IPO was registered under the Securities Act pursuant to registration statements on Form S-1, which was filed with the SEC on January&nbsp;31, 2014 (File
No.&nbsp;377-00464) and amended subsequently and declared effective by the SEC on June&nbsp;18, 2014 (File No.&nbsp;333-195391), and Form S-1MEF, which was filed with the SEC on June&nbsp;18, 2014 (File No.&nbsp;333-196891) and automatically
effective upon filing. There has been no change in the use of proceeds from our IPO. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><A NAME="tx80865_14"></A>Item&nbsp;6. Exhibits </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The exhibits filed as part of this Quarterly Report on Form 10-Q are set forth on the Exhibit Index, which is incorporated herein by reference.
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">51 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx80865_15"></A>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned thereunto duly authorized. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3">ZAFGEN,&nbsp;INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Thomas E. Hughes</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Thomas E. Hughes</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Executive Officer</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal
Executive Officer)</I></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Patricia L. Allen</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Patricia L. Allen</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Financial Officer</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal
Financial Officer)</I></P></TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">52 </P>


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<h5 align="left"><a href="#toc">Table of Contents</a></h5>

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT INDEX </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD></TD>
<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD WIDTH="90%"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE="border-bottom:1.00pt solid #000000; width:25.30pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Exhibit<BR>No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE="border-bottom:1.00pt solid #000000; width:39.50pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Description</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;31.1*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Certification of Principal Executive Officer pursuant to Exchange Act rules&nbsp;13a-14 or 15d-14.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;31.2*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Certification of Principal Financial Officer pursuant to Exchange Act rules&nbsp;13a-14 or 15d-14.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;32.1*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Certification of Principal Executive Officer and Principal Financial Officer pursuant to Exchange Act rules&nbsp;13a-14(b)&nbsp;or 15d-14(b) and 18 U.S.C. Section&nbsp;1350.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.INS*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Instance Document.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.SCH*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Taxonomy Extension Schema Document.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.CAL*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Taxonomy Extension Calculation Document.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.DEF*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Taxonomy Extension Definition Linkbase Document.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.LAB*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Taxonomy Extension Labels Linkbase Document.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>101.PRE*</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">XBRL Taxonomy Extension Presentation Link Document.</TD></TR>
</TABLE> <P STYLE="line-height:8.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:10%">&nbsp;</P>
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<TR>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">*</TD>
<TD ALIGN="left" VALIGN="top">Filed herewith. </TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">53 </P>

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<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>d80865dex311.htm
<DESCRIPTION>EX-31.1
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit&nbsp;31.1 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Certification </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">I, Thomas E. Hughes,
certify that: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">1.</TD>
<TD ALIGN="left" VALIGN="top">I have reviewed this quarterly report on Form&nbsp;10-Q for the period ended June&nbsp;30, 2015 of Zafgen,&nbsp;Inc.; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">2.</TD>
<TD ALIGN="left" VALIGN="top">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by this report; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">3.</TD>
<TD ALIGN="left" VALIGN="top">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this report; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">4.</TD>
<TD ALIGN="left" VALIGN="top">The registrant&#146;s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules&nbsp;13a-15(e) and 15d-15(e)) for the
registrant and have: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">a.</TD>
<TD ALIGN="left" VALIGN="top">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">b.</TD>
<TD ALIGN="left" VALIGN="top">(Paragraph omitted pursuant to SEC Release Nos. 33-8238/34-47986 and 33-8392/34-49313); </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c.</TD>
<TD ALIGN="left" VALIGN="top">Evaluated the effectiveness of the registrant&#146;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of
the period covered by this report based on such evaluation; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">d.</TD>
<TD ALIGN="left" VALIGN="top">Disclosed in this report any change in the registrant&#146;s internal control over financial reporting that occurred during the registrant&#146;s most recent fiscal quarter (the registrant&#146;s fourth fiscal quarter
in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#146;s internal control over financial reporting; and </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.</TD>
<TD ALIGN="left" VALIGN="top">The registrant&#146;s other certifying officer(s) and I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrant&#146;s auditors and the audit committee of the
registrant&#146;s board of directors (or persons performing the equivalent functions): </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">a.</TD>
<TD ALIGN="left" VALIGN="top">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#146;s ability to record,
process, summarize and report financial information; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">b.</TD>
<TD ALIGN="left" VALIGN="top">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#146;s internal control over financial reporting. </TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="47%"></TD>
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<TD WIDTH="4%"></TD>
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<TD></TD>
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<TD WIDTH="46%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Date: August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Thomas E. Hughes</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3">Thomas E. Hughes</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Executive Officer</I></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal Executive Officer)</I></P></TD></TR>
</TABLE>
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<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>d80865dex312.htm
<DESCRIPTION>EX-31.2
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit&nbsp;31.2 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Certification </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">I, Patricia L. Allen,
certify that: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">1.</TD>
<TD ALIGN="left" VALIGN="top">I have reviewed this quarterly report on Form&nbsp;10-Q for the period ended June&nbsp;30, 2015 of Zafgen,&nbsp;Inc.; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">2.</TD>
<TD ALIGN="left" VALIGN="top">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by this report; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">3.</TD>
<TD ALIGN="left" VALIGN="top">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this report; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">4.</TD>
<TD ALIGN="left" VALIGN="top">The registrant&#146;s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules&nbsp;13a-15(e)&nbsp;and 15d-15(e)) for the
registrant and have: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">a.</TD>
<TD ALIGN="left" VALIGN="top">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">b.</TD>
<TD ALIGN="left" VALIGN="top">(Paragraph omitted pursuant to SEC Release Nos. 33-8238/34-47986 and 33-8392/34-49313); </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c.</TD>
<TD ALIGN="left" VALIGN="top">Evaluated the effectiveness of the registrant&#146;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of
the period covered by this report based on such evaluation; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">d.</TD>
<TD ALIGN="left" VALIGN="top">Disclosed in this report any change in the registrant&#146;s internal control over financial reporting that occurred during the registrant&#146;s most recent fiscal quarter (the registrant&#146;s fourth fiscal quarter
in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#146;s internal control over financial reporting; and </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.</TD>
<TD ALIGN="left" VALIGN="top">The registrant&#146;s other certifying officer(s) and I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrant&#146;s auditors and the audit committee of the
registrant&#146;s board of directors (or persons performing the equivalent functions): </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">a.</TD>
<TD ALIGN="left" VALIGN="top">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#146;s ability to record,
process, summarize and report financial information; and </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">b.</TD>
<TD ALIGN="left" VALIGN="top">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#146;s internal control over financial reporting. </TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="47%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="4%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="47%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Date: August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Patricia L. Allen</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Patricia L. Allen</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Financial Officer</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal
Financial Officer)</I></P></TD></TR>
</TABLE>
</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>d80865dex321.htm
<DESCRIPTION>EX-32.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-32.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit&nbsp;32.1 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CERTIFICATION PURSUANT TO </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>18 U.S.C. SECTION&nbsp;1350, </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>AS ADOPTED PURSUANT TO </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SECTION&nbsp;906 OF THE SARBANES-OXLEY ACT OF 2002 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In connection with the quarterly report on Form&nbsp;10-Q of Zafgen,&nbsp;Inc. (the &#147;Company&#148;) for the period ended June&nbsp;30,
2015, as filed with the Securities and Exchange Commission on the date hereof (the &#147;Report&#148;),&nbsp;each of the undersigned officers hereby certify, pursuant to Section&nbsp;906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C.
Section&nbsp;1350, that to his or her knowledge: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">1)</TD>
<TD ALIGN="left" VALIGN="top">the Report which this statement accompanies fully complies with the requirements of Section&nbsp;13(a)&nbsp;or 15(d)&nbsp;of the Securities Exchange Act of 1934, as amended; and </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">2)</TD>
<TD ALIGN="left" VALIGN="top">the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. </TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="47%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="4%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="47%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Date: August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Thomas E. Hughes</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Thomas E. Hughes</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Executive Officer</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal
Executive Officer)</I></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Date: August 14, 2015</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Patricia L. Allen</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Patricia L. Allen</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Chief Financial Officer</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><I>(Principal
Financial Officer)</I></P></TD></TR>
</TABLE>
</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.INS
<SEQUENCE>5
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<DESCRIPTION>XBRL INSTANCE DOCUMENT
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 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 As of June&amp;#xA0;30, 2015, estimated future principal payments due
 are as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="89%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="6%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;
 &lt;p style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt"&gt;
 &lt;b&gt;Years Ending December&amp;#xA0;31,&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" colspan="2"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2015&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,381&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2016&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,936&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2017&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,183&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;


 &lt;/div&gt;</us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock>
  <us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_E3934D43-1B84-4173-AB1A-A187C33F2B42_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;8. Retirement Plan&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company has a Savings Incentive Match Plan for employees. Under
 the terms of the plan, the Company contributes 2% of an
 employee&amp;#x2019;s annual base salary, up to a maximum of the annual
 Internal Revenue Service compensation limits, for all full-time
 employees.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 During the three months ended June&amp;#xA0;30, 2015 and 2014, the
 Company recognized $34 and $13, respectively, of expense related to
 its contributions to this plan. During the six months ended
 June&amp;#xA0;30, 2015 and 2014, the Company recognized $79 and $26,
 respectively, of expense related to its contributions to this
 plan.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock>
  <us-gaap:AvailableForSaleSecuritiesTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_4154879D-D6F3-4620-9A03-70D1D3AF062A_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following table summarizes the Company&amp;#x2019;s marketable
 securities as of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,396&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(48&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,348&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,487&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(4&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,483&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,240&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,484&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,607&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(60&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="64%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,200&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(9&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,716&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(18&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,698&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,478&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(8&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,470&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,394&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(35&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:AvailableForSaleSecuritiesTextBlock>
  <dei:DocumentFiscalYearFocus contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_38573F5B-FB48-4037-800E-AF0EC22F7BB5_1_3">2015</dei:DocumentFiscalYearFocus>
  <dei:AmendmentFlag contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_38573F5B-FB48-4037-800E-AF0EC22F7BB5_1_1">false</dei:AmendmentFlag>
  <us-gaap:ResearchDevelopmentAndComputerSoftwareDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_0769DDC4-C4AF-4244-89D7-54E6A102A727_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;9. Australia Research and Development Tax Incentive&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company&amp;#x2019;s wholly owned subsidiary, Zafgen Australia Pty
 Limited, which conducts core research and development activities on
 behalf of the Company is eligible to receive a 45% refundable tax
 incentive for qualified research and development activities. For
 the three months ended June&amp;#xA0;30, 2015 and 2014, $458 and $47,
 respectively, was recorded as a reduction to research and
 development expenses in the condensed consolidated statements of
 operations. For the six months ended June&amp;#xA0;30, 2015 and 2014,
 $687 and $73, respectively, was recorded as a reduction to research
 and development expenses in the condensed consolidated statements
 of operations These amounts represented 45% of the Company&amp;#x2019;s
 qualified research and development spending in Australia. The
 refund is denominated in Australian dollars and, therefore, the
 receivable is re-measured into U.S. dollars as of each reporting
 date. For the three months ended June&amp;#xA0;30, 2015 and 2014, the
 Company recorded in its condensed consolidated statements of
 operations unrealized foreign currency exchange gains (losses) of
 $(14) and $22, respectively, related to this tax incentive
 receivable. For the six months ended June&amp;#xA0;30, 2015 and 2014,
 the Company recorded in its condensed consolidated statements of
 operations unrealized foreign currency exchange gains (losses) of
 $(38) and $64, respectively, related to this tax incentive
 receivable. As of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014,
 the Company&amp;#x2019;s tax incentive receivable from the Australian
 government was $1,040 and $391, respectively.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:ResearchDevelopmentAndComputerSoftwareDisclosureTextBlock>
  <us-gaap:DebtDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_D1382395-54A2-41AF-B0DA-9BB5BCFC6A42_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;4. Notes Payable&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company has outstanding amounts due under a loan and security
 agreement with Oxford Finance LLC and Midcap Financial (the
 &amp;#x201C;Credit Facility&amp;#x201D;) entered into in March 2014. All
 promissory notes issued under the Credit Facility are
 collateralized by substantially all of the Company&amp;#x2019;s personal
 property, other than intellectual property. There are no financial
 covenants associated with the debt facility; however, there are
 negative covenants restricting the Company&amp;#x2019;s activities,
 including limitations on dispositions, mergers or acquisitions;
 encumbering or granting a security interest in the Company&amp;#x2019;s
 intellectual property; incurring indebtedness or liens; paying
 dividends; making certain investments; and certain other business
 transactions. As of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014,
 notes payable consist of the following:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;June&amp;#xA0;30,&lt;br /&gt;
 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;December&amp;#xA0;31,&lt;br /&gt;
 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Less: current portion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(2,820&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1,381&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable, net of current portion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,680&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;6,119&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Debt discount, net of accretion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(56&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(79&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accretion related to final payment&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;227&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;137&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable, net of discount, long term&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,851&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;6,177&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 As of June&amp;#xA0;30, 2015, estimated future principal payments due
 are as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="89%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="6%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;
 &lt;p style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt"&gt;
 &lt;b&gt;Years Ending December&amp;#xA0;31,&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" colspan="2"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2015&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,381&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2016&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,936&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2017&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,183&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 During the three months ended June&amp;#xA0;30, 2015 and 2014, the
 Company recognized $213 and $443, respectively, of interest expense
 related to the Credit Facility. During the six months ended
 June&amp;#xA0;30, 2015 and 2014, the Company recognized $426 and $445,
 respectively, of interest expense related to the Credit Facility.
 The effective annual interest rate of the outstanding debt under
 the Credit Facility is approximately 14%.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:DebtDisclosureTextBlock>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="iso4217_USD_per_shares" decimals="2" id="id_8624317_5740C67B-3867-4730-A058-B2E7D98CE0A4_3_14">-1.19</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="shares" decimals="INF" id="id_8624317_1B24840C-169E-4AD7-9B16-889FBED1EA59_1_2">2503644</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <dei:DocumentType contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_38573F5B-FB48-4037-800E-AF0EC22F7BB5_1_0">10-Q</dei:DocumentType>
  <dei:EntityCentralIndexKey contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_B6067DF7-4E36-4261-BE55-80637C09A323_1_2">0001374690</dei:EntityCentralIndexKey>
  <dei:EntityIncorporationDateOfIncorporation contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_AF4F34AA-6C5A-4F8B-A38B-19CE60AFAD67_1_0">2005-11-22</dei:EntityIncorporationDateOfIncorporation>
  <us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_39B959B9-D544-4952-9D85-FA5B87144C86_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&amp;#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
 loss per share for the three and six months ended June&amp;#xA0;30,
 2015 and 2014, because they had an anti-dilutive impact:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;As of June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 1pt"&gt;
 &lt;td height="8"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Options to purchase common stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,500,741&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Unvested restricted stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,903&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,503,644&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock>
  <dei:EntityFilerCategory contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_B6067DF7-4E36-4261-BE55-80637C09A323_1_4">Non-accelerated Filer</dei:EntityFilerCategory>
  <us-gaap:BasisOfAccountingPolicyPolicyTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_C0B6FF35-3CD8-4327-A813-59708E6C1464_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Unaudited Interim Financial Information&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The condensed consolidated balance sheet at December&amp;#xA0;31, 2014
 was derived from audited financial statements, but does not include
 all disclosures required by GAAP. The accompanying unaudited
 condensed consolidated financial statements as of June&amp;#xA0;30,
 2015 and for the three and six months ended June&amp;#xA0;30, 2015 and
 2014, have been prepared by the Company, pursuant to the rules and
 regulations of the SEC for interim financial statements. Certain
 information and footnote disclosures normally included in financial
 statements prepared in accordance with GAAP have been condensed or
 omitted pursuant to such rules and regulations. However, the
 Company believes that the disclosures are adequate to make the
 information presented not misleading. These condensed consolidated
 financial statements should be read in conjunction with the
 Company&amp;#x2019;s audited consolidated financial statements and the
 notes thereto for the year ended December&amp;#xA0;31, 2014, included
 in the Company&amp;#x2019;s Annual Report on Form 10-K for the year
 ended December&amp;#xA0;31, 2014, on file with the SEC. In the opinion
 of management, all adjustments, consisting only of normal recurring
 adjustments necessary for a fair presentation of the
 Company&amp;#x2019;s condensed consolidated financial position as of
 June&amp;#xA0;30, 2015 and condensed consolidated results of operations
 and cash flows for the three and six months ended June&amp;#xA0;30,
 2015 and 2014 have been made. The results of operations for the
 three and six months ended June&amp;#xA0;30, 2015 are not necessarily
 indicative of the results of operations that may be expected for
 the year ending December&amp;#xA0;31, 2015.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
  <us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_70CC9156-A505-46C0-872B-BFBD63ADDFE3_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;3. Accrued Expenses&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Accrued expenses consisted of the following:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;June&amp;#xA0;30,&lt;br /&gt;
 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;December&amp;#xA0;31,&lt;br /&gt;
 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued research and development expenses&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,542&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,180&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued payroll and related expenses&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,256&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued professional fees&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;519&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;585&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued other&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;124&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,441&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,172&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p&gt;&amp;#xA0;&lt;/p&gt;


 &lt;/div&gt;</us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock>
  <us-gaap:DefinedContributionPlanEmployerMatchingContributionPercent contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="pure" decimals="2" id="id_8624317_071FB503-6393-4DB7-B415-3F524016CF0E_1_0">0.02</us-gaap:DefinedContributionPlanEmployerMatchingContributionPercent>
  <us-gaap:MarketableSecuritiesPolicy contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_0B5BAF20-2C57-4458-9301-C2A7DC3D3E6B_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Marketable Securities&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following table summarizes the Company&amp;#x2019;s marketable
 securities as of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,396&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(48&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,348&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,487&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(4&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,483&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,240&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,484&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,607&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(60&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="64%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,200&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(9&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,716&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(18&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,698&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,478&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(8&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,470&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,394&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(35&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:MarketableSecuritiesPolicy>
  <us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_4D06E671-E8E6-4E40-92A3-A3EEE04C40C5_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Accrued expenses consisted of the following:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;June&amp;#xA0;30,&lt;br /&gt;
 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;December&amp;#xA0;31,&lt;br /&gt;
 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued research and development expenses&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,542&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,180&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued payroll and related expenses&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,256&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued professional fees&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;519&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;585&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accrued other&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;124&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,441&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,172&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;


 &lt;/div&gt;</us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock>
  <us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_F89E3D75-912D-47E5-AD95-38E2FD81E94A_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;1. Nature of the Business and Basis of Presentation&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Zafgen, Inc. (the &amp;#x201C;Company&amp;#x201D;) was incorporated on
 November&amp;#xA0;22, 2005 under the laws of the State of Delaware. The
 Company is a biopharmaceutical company dedicated to significantly
 improving the health and well-being of patients affected by obesity
 and complex metabolic disorders. Zafgen is focused on developing
 novel therapeutics that treat the underlying biological mechanisms
 through the Methionine Aminopeptidase 2 (&amp;#x201C;MetAP2&amp;#x201D;)
 pathway. Beloranib, the Company&amp;#x2019;s lead product candidate, is
 a novel, first-in-class, twice-weekly subcutaneous injection being
 developed for the treatment of multiple indications, including
 severe obesity in two rare diseases, Prader-Willi syndrome and
 obesity caused by hypothalamic injury, including
 craniopharyngioma-associated obesity; and severe obesity in the
 general population. Zafgen is also developing ZGN-839, a
 liver-targeted MetAP2 inhibitor, for the treatment of nonalcoholic
 steatohepatitis (&amp;#x201C;NASH&amp;#x201D;) and abdominal obesity, as well
 as other second-generation MetAP2 inhibitors. Since its inception,
 the Company has devoted substantially all of its efforts to
 research and development, recruiting management, acquiring
 operating assets and raising capital.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company is subject to risks common to companies in the
 biotechnology industry including, but not limited to, new
 technological innovations, protection of proprietary technology,
 dependence on key personnel, compliance with government regulations
 and the need to obtain additional financing. Product candidates
 currently under development will require significant additional
 research and development efforts, including extensive pre-clinical
 and clinical testing and regulatory approval, prior to
 commercialization. These efforts require significant amounts of
 additional capital, adequate personnel infrastructure, and
 extensive compliance-reporting capabilities.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company&amp;#x2019;s product candidates are all in the development
 stage. There can be no assurance that the Company&amp;#x2019;s research
 and development will be successfully completed, that&amp;#xA0;adequate
 protection for the Company&amp;#x2019;s intellectual property will be
 obtained, that any products developed&amp;#xA0;will obtain necessary
 government regulatory approval or that any approved products will
 be&amp;#xA0;commercially viable. Even if the Company&amp;#x2019;s product
 development efforts are successful, it is uncertain when, if ever,
 the Company will generate significant revenue from product sales.
 The Company operates in an environment of rapid change in
 technology and&amp;#xA0;substantial competition from pharmaceutical and
 biotechnology companies. In addition, the&amp;#xA0;Company is dependent
 upon the services of its employees and consultants.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The consolidated financial statements include the accounts of the
 Company and its wholly owned subsidiaries Zafgen Securities
 Corporation, Zafgen Australia Pty Limited, and Zafgen Animal
 Health, LLC. All significant intercompany balances and transactions
 have been eliminated.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 On June&amp;#xA0;24, 2014, the Company completed an initial public
 offering (&amp;#x201C;IPO&amp;#x201D;) of its common stock, which resulted in
 the sale of 6,900,000 shares at a price of $16.00 per share. The
 Company received net proceeds from the IPO of approximately
 $102,672 based upon the price of $16.00 per share and after
 deducting underwriting discounts and commissions paid by the
 Company. The Company also incurred offering costs of $2,508 related
 to the IPO.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 On January&amp;#xA0;28, 2015, the Company completed a follow-on
 offering of its common stock, which resulted in the sale of
 3,942,200 shares at a price of $35.00 per share. The Company
 received net proceeds from the follow-on offering of $130,044 based
 upon the price of $35.00 per share after deducting underwriting
 discounts and commissions. The Company also incurred offering costs
 of $473 related to the follow-on offering.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Unaudited Interim Financial Information&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The condensed consolidated balance sheet at December&amp;#xA0;31, 2014
 was derived from audited financial statements, but does not include
 all disclosures required by GAAP. The accompanying unaudited
 condensed consolidated financial statements as of June&amp;#xA0;30,
 2015 and for the three and six months ended June&amp;#xA0;30, 2015 and
 2014, have been prepared by the Company, pursuant to the rules and
 regulations of the SEC for interim financial statements. Certain
 information and footnote disclosures normally included in financial
 statements prepared in accordance with GAAP have been condensed or
 omitted pursuant to such rules and regulations. However, the
 Company believes that the disclosures are adequate to make the
 information presented not misleading. These condensed consolidated
 financial statements should be read in conjunction with the
 Company&amp;#x2019;s audited consolidated financial statements and the
 notes thereto for the year ended December&amp;#xA0;31, 2014, included
 in the Company&amp;#x2019;s Annual Report on Form 10-K for the year
 ended December&amp;#xA0;31, 2014, on file with the SEC. In the opinion
 of management, all adjustments, consisting only of normal recurring
 adjustments necessary for a fair presentation of the
 Company&amp;#x2019;s condensed consolidated financial position as of
 June&amp;#xA0;30, 2015 and condensed consolidated results of operations
 and cash flows for the three and six months ended June&amp;#xA0;30,
 2015 and 2014 have been made. The results of operations for the
 three and six months ended June&amp;#xA0;30, 2015 are not necessarily
 indicative of the results of operations that may be expected for
 the year ending December&amp;#xA0;31, 2015.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock>
  <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_C55A8929-B971-4CDC-81D4-64EF6DC83DF0_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="69%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;three&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;six&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Numerator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Net loss&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,400&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,858&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Accretion of redeemable convertible preferred stock to redemption
 value&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(43&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(92&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 9em; TEXT-INDENT: -1em"&gt;
 Net loss attributable to common stockholders&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,443&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,950&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Denominator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Weighted average of common shares outstanding, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,011,960&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,178,465&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,316,619&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,457,931&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Net loss per share attributable to common stockholders, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(0.66&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(2.96&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1.19&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7.51&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
  <us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_22DD586B-A1DF-4245-934F-FA42FC789F4B_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company recorded stock-based compensation expense related to
 stock options and restricted common stock in the following expense
 categories of its condensed consolidated statements of
 operations:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="74%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;Three&amp;#xA0;Months&amp;#xA0;Ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;Six&amp;#xA0;Months&amp;#xA0;Ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Research and development&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;738&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;99&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,142&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 General and administrative&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,201&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;169&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,854&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;276&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,939&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;268&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,996&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;444&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;


 &lt;/div&gt;</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>
  <dei:CurrentFiscalYearEndDate contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_B6067DF7-4E36-4261-BE55-80637C09A323_1_3">--12-31</dei:CurrentFiscalYearEndDate>
  <dei:EntityRegistrantName contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_B6067DF7-4E36-4261-BE55-80637C09A323_1_1">Zafgen, Inc.</dei:EntityRegistrantName>
  <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_BCCC433E-1683-4F26-B302-630A66B33A4A_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;7. Commitments and Contingencies&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Leases&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company has a lease for office space in Boston, Massachusetts,
 effective as of July&amp;#xA0;28, 2014, with a term expiring
 July&amp;#xA0;31, 2017 and an option to extend the lease for three
 additional years. In March 2015, the Company entered into an
 operating lease for additional office space in Boston,
 Massachusetts, effective as of April&amp;#xA0;15, 2015, with a term
 expiring on July&amp;#xA0;31, 2017, and two options to extend the lease
 for three additional years each.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Future minimum lease payments for its operating lease as of
 June&amp;#xA0;30, 2015 are as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="91%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="6%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;
 &lt;p style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt"&gt;
 &lt;b&gt;Years Ending December&amp;#xA0;31,&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" colspan="2"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2015&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;163&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2016&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;335&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2017&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;199&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;697&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 During the three months ended June&amp;#xA0;30, 2015 and 2014, the
 Company recognized $79 and $27, respectively, of rental expense
 related to office space. During the six months ended June&amp;#xA0;30,
 2015 and 2014, the Company recognized $137 and $52, respectively,
 of rental expense related to office space.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Intellectual Property Licenses&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company has acquired exclusive rights to develop patented
 compounds and related know-how for beloranib under licensing
 agreements with two third parties in the course of its research and
 development activities. The licensing rights obligate the Company
 to make payments to the licensors for license fees, milestones,
 license maintenance fees and royalties. The Company is also
 responsible for patent prosecution costs.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 As of June&amp;#xA0;30, 2015, the Company is obligated to make
 milestone payments of up to $12,250 upon reaching certain
 pre-commercialization milestones, such as clinical trials and
 government approvals, and up to $12,500 upon reaching certain
 product commercialization milestones. Under one of the license
 agreements, the Company is also obligated to pay up to $1,250 with
 respect to each subsequent licensed product, if any, that is a new
 chemical entity. In addition, the Company will owe single-digit
 royalties on sales of commercial products developed using these
 licensed technologies, if any. The Company is also obligated to pay
 to the licensors a percentage of fees received if and when the
 Company sublicenses the technology. As of June&amp;#xA0;30, 2015, the
 Company has not yet developed a commercial product using the
 licensed technologies and it has not entered into any sublicense
 agreements for the technologies.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Indemnification Agreements&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 In the ordinary course of business, the Company may provide
 indemnification of varying scope and terms to vendors, lessors,
 business partners, and other parties with respect to certain
 matters including, but not limited to, losses arising out of breach
 of such agreements or from intellectual property infringement
 claims made by third parties. In addition, the Company has entered
 into indemnification agreements with members of its board of
 directors that will require the Company, among other things, to
 indemnify them against certain liabilities that may arise by reason
 of their status or service as directors or officers. The maximum
 potential amount of future payments the Company could be required
 to make under these indemnification agreements is, in many cases,
 unlimited. To date, the Company has not incurred any material costs
 as a result of such indemnifications. The Company does not believe
 that the outcome of any claims under indemnification arrangements
 will have a material effect on its financial position, results of
 operations or cash flows, and it has not accrued any liabilities
 related to such obligations in its condensed consolidated financial
 statements as of June&amp;#xA0;30, 2015.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
  <us-gaap:FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTableTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_6256DA96-85B0-41AA-801B-C9097D40F1DA_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following tables summarize the Company&amp;#x2019;s cash equivalents
 and marketable securities as of June&amp;#xA0;30, 2015 and
 December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="60%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;63,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;199,680&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;138,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;42,509&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;99,868&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;85,126&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTableTextBlock>
  <us-gaap:FairValueMeasurementPolicyPolicyTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_DC0E7FB3-65D6-4AEF-B8BE-ECDD58F05BBF_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Fair Value Measurements&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following tables present information about the Company&amp;#x2019;s
 financial assets that have been measured at fair value at
 June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014, and indicate the
 fair value of the hierarchy of the valuation inputs utilized to
 determine such fair value. In general, fair values determined by
 Level 1 inputs utilize quoted prices (unadjusted) in active markets
 for identical assets or liabilities. Fair value determined by Level
 2 inputs utilize observable inputs other than Level 1 prices, such
 as quoted prices, for similar assets or liabilities, quoted market
 prices in markets that are not active or other inputs that are
 observable or can be corroborated by observable market data for
 substantially the full term of the related assets or liabilities.
 Fair values determined by Level 3 inputs are unobservable data
 points for the asset or liability, and includes situations where
 there is little, if any, market activity for the asset or
 liability.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following tables summarize the Company&amp;#x2019;s cash equivalents
 and marketable securities as of June&amp;#xA0;30, 2015 and
 December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="60%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;63,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;199,680&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;138,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 8%; -webkit-text-stroke-width: 0px"&gt;
 During the three and six months ended June&amp;#xA0;30, 2015, there
 were no transfers between Level 1 and Level 2 financial assets. The
 carrying amounts reflected in the condensed consolidated balance
 sheets for tax incentive receivable, accounts payable, and accrued
 expenses approximate fair value due to their short-term maturities.
 The carrying value of the Company&amp;#x2019;s outstanding notes payable
 approximates fair value (a Level 2 fair value measurement),
 reflecting discount rates currently available to the Company.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;42,509&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;99,868&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;85,126&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:FairValueMeasurementPolicyPolicyTextBlock>
  <dei:DocumentPeriodEndDate contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_38573F5B-FB48-4037-800E-AF0EC22F7BB5_1_2">2015-06-30</dei:DocumentPeriodEndDate>
  <us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_670852AA-F982-4304-94DD-8B993DB5EFB9_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;5. Stockholders&amp;#x2019; Equity&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 In January 2015, the Company completed a follow-on offering
 resulting in the sale of 3,942,200 common shares at $35.00 per
 share, including 514,200 shares related to the exercise of the
 over-allotment option by the underwriters. The Company received net
 proceeds from the follow-on offering of $130,044 based upon the
 price of $35.00 per share after deducting underwriting discounts
 and commissions. The Company also incurred offering costs of $473
 related to the follow-on offering.&lt;/p&gt;
 &lt;/div&gt;</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
  <us-gaap:UseOfEstimates contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_2B07F3A2-37A5-4F81-B832-8C7BB2C9BAF1_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Use of Estimates&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The preparation of financial statements in conformity with GAAP
 requires management to make estimates, assumptions and judgments
 that affect the reported amounts of assets and liabilities, the
 disclosure of contingent assets and liabilities at the date of the
 consolidated financial statements, and the reported amounts of
 expenses during the reporting periods. Significant estimates,
 assumptions and judgments reflected in these condensed consolidated
 financial statements include, but are not limited to, the accrual
 of research and development expenses, the valuation of common stock
 prior to the IPO and the valuation of stock-based awards. Estimates
 are periodically reviewed in light of changes in circumstances,
 facts and experience. Actual results could differ from the
 Company&amp;#x2019;s estimates.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:UseOfEstimates>
  <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_F6FF9D11-7AF6-4328-B1C5-C68E72DDE184_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;6. Stock-Based Awards&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company grants equity awards under its 2014 Stock Option and
 Incentive Plan and is authorized to issue common stock under its
 2014 Employee Stock Purchase Plan. The Company also has outstanding
 stock-based awards under its Amended and Restated 2006 Stock Option
 Plan but is no longer granting awards under this plan. As of
 June&amp;#xA0;30, 2015, 1,799,099 shares are available for grant under
 the 2014 Stock Option and Incentive Plan, including 915,166 shares
 automatically added to the 2014 Stock Option and Incentive Plan on
 January&amp;#xA0;1, 2015 as a result of a provision in the plan, and
 262,136 shares are available for issuance to participating
 employees under the 2014 Employee Stock Purchase Plan. The Company
 recorded stock-based compensation expense related to stock options
 and restricted common stock in the following expense categories of
 its condensed consolidated statements of operations:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="74%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;Three&amp;#xA0;Months&amp;#xA0;Ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;Six&amp;#xA0;Months&amp;#xA0;Ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Research and development&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;738&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;99&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,142&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 General and administrative&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,201&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;169&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,854&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;276&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,939&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;268&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,996&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;444&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 13%; -webkit-text-stroke-width: 0px"&gt;
 As of June&amp;#xA0;30, 2015, the Company had an aggregate of $28,525
 of unrecognized stock-based compensation cost, which is expected to
 be recognized over a weighted average period of 3.5 years. As of
 June&amp;#xA0;30, 2015, there were outstanding unvested service-based
 stock options held by nonemployees for the purchase of 13,552
 shares of common stock.&lt;/p&gt;
 &lt;p&gt;&amp;#xA0;&lt;/p&gt;


 &lt;/div&gt;</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
  <us-gaap:EarningsPerSharePolicyTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_956EEBD3-AF7E-4175-B974-FB3EEA6A1211_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Income (Loss) Per Share&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Upon the closing of the Company&amp;#x2019;s IPO in June 2014, all of
 the Company&amp;#x2019;s outstanding redeemable convertible preferred
 shares were converted into shares of common stock. Prior to this
 conversion, the Company followed the two-class method when
 computing net income (loss) per share as the Company had issued
 shares that meet the definition of participating securities. The
 two-class method determines net income (loss) per share for each
 class of common and participating securities according to dividends
 declared or accumulated and participation rights in undistributed
 earnings. The two-class method requires income available to common
 stockholders for the period to be allocated between common and
 participating securities based upon their respective rights to
 receive dividends as if all income for the period had been
 distributed. The Company&amp;#x2019;s redeemable convertible preferred
 shares contractually entitled the holders of such shares to
 participate in dividends, but did not contractually require the
 holders of such shares to participate in losses of the Company.
 Accordingly, the two-class method did not apply for periods in
 which the Company reported a net loss or a net loss attributable to
 common stockholders resulting from dividends or accretion related
 to its redeemable convertible preferred shares.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Basic net income (loss) per share attributable to common
 stockholders is computed by dividing the net income (loss)
 attributable to common stockholders by the weighted average number
 of common shares outstanding for the period. Diluted net income
 (loss) per share attributable to common stockholders is computed by
 dividing the diluted net income (loss) attributable to common
 stockholders by the weighted average number of common shares,
 including potential dilutive common shares assuming the dilutive
 effect of outstanding stock options and unvested restricted common
 shares, as determined using the treasury stock method. For periods
 in which the Company has reported net losses, diluted net loss per
 common share attributable to common stockholders is the same as
 basic net loss per common share attributable to common
 stockholders, since dilutive common shares are not assumed to have
 been issued if their effect is antidilutive.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company reported a net loss attributable to common stockholders
 for the three and six months ended June&amp;#xA0;30, 2015 and 2014.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="69%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;three&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;six&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Numerator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Net loss&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,400&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,858&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Accretion of redeemable convertible preferred stock to redemption
 value&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(43&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(92&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 9em; TEXT-INDENT: -1em"&gt;
 Net loss attributable to common stockholders&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,443&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,950&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Denominator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Weighted average of common shares outstanding, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,011,960&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,178,465&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,316,619&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,457,931&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Net loss per share attributable to common stockholders, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(0.66&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(2.96&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1.19&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7.51&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&amp;#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
 loss per share for the three and six months ended June&amp;#xA0;30,
 2015 and 2014, because they had an anti-dilutive impact:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;As of June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 1pt"&gt;
 &lt;td height="8"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Options to purchase common stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,500,741&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Unvested restricted stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,903&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,503,644&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;br class="Apple-interchange-newline" /&gt;

 &lt;/div&gt;</us-gaap:EarningsPerSharePolicyTextBlock>
  <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_A0EC9931-AD52-4D84-A96C-9D22C3FA3E87_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Recently Issued and Adopted Accounting Pronouncements&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 In August 2014, the Financial Accounting Standards Board issued
 Accounting Standards Update No.&amp;#xA0;2014-15, Presentation of
 Financial Statements &amp;#x2014; Going Concern (Subtopic 205-40). The
 new guidance addresses management&amp;#x2019;s responsibility to
 evaluate whether there is substantial doubt about an entity&amp;#x2019;s
 ability to continue as a going concern and to provide related
 footnote disclosures. Management&amp;#x2019;s evaluation should be based
 on relevant conditions and events that are known and reasonably
 knowable at the date that the financial statements are issued. The
 standard will be effective for the first interim period within
 annual reporting periods beginning after December&amp;#xA0;15, 2016.
 Early adoption is permitted. The Company is evaluating the effect
 that this guidance will have on its condensed consolidated
 financial statements.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
  <us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_19A605A5-54AF-4354-B5E7-A11146C96EC3_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Future minimum lease payments for its operating lease as of
 June&amp;#xA0;30, 2015 are as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="91%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="6%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;
 &lt;p style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt"&gt;
 &lt;b&gt;Years Ending December&amp;#xA0;31,&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" colspan="2"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2015&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;163&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2016&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;335&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 2017&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;199&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;697&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;


 &lt;/div&gt;</us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_DF2F1DD0-D804-4B6D-8F1F-F2482E0FDD0E_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;2. Summary of Significant Accounting Policies&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Use of Estimates&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The preparation of financial statements in conformity with GAAP
 requires management to make estimates, assumptions and judgments
 that affect the reported amounts of assets and liabilities, the
 disclosure of contingent assets and liabilities at the date of the
 consolidated financial statements, and the reported amounts of
 expenses during the reporting periods. Significant estimates,
 assumptions and judgments reflected in these condensed consolidated
 financial statements include, but are not limited to, the accrual
 of research and development expenses, the valuation of common stock
 prior to the IPO and the valuation of stock-based awards. Estimates
 are periodically reviewed in light of changes in circumstances,
 facts and experience. Actual results could differ from the
 Company&amp;#x2019;s estimates.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Fair Value Measurements&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following tables present information about the Company&amp;#x2019;s
 financial assets that have been measured at fair value at
 June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014, and indicate the
 fair value of the hierarchy of the valuation inputs utilized to
 determine such fair value. In general, fair values determined by
 Level 1 inputs utilize quoted prices (unadjusted) in active markets
 for identical assets or liabilities. Fair value determined by Level
 2 inputs utilize observable inputs other than Level 1 prices, such
 as quoted prices, for similar assets or liabilities, quoted market
 prices in markets that are not active or other inputs that are
 observable or can be corroborated by observable market data for
 substantially the full term of the related assets or liabilities.
 Fair values determined by Level 3 inputs are unobservable data
 points for the asset or liability, and includes situations where
 there is little, if any, market activity for the asset or
 liability.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following tables summarize the Company&amp;#x2019;s cash equivalents
 and marketable securities as of June&amp;#xA0;30, 2015 and
 December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="60%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;63,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;60,831&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;199,680&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;61,133&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;138,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 8%; -webkit-text-stroke-width: 0px"&gt;
 During the three and six months ended June&amp;#xA0;30, 2015, there
 were no transfers between Level 1 and Level 2 financial assets. The
 carrying amounts reflected in the condensed consolidated balance
 sheets for tax incentive receivable, accounts payable, and accrued
 expenses approximate fair value due to their short-term maturities.
 The carrying value of the Company&amp;#x2019;s outstanding notes payable
 approximates fair value (a Level 2 fair value measurement),
 reflecting discount rates currently available to the Company.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Total&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Quoted&lt;br /&gt;
 Prices&amp;#xA0;in&lt;br /&gt;
 Active&lt;br /&gt;
 Markets&lt;br /&gt;
 (Level&amp;#xA0;1)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Other&lt;br /&gt;
 Observable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;2)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Significant&lt;br /&gt;
 Unobservable&lt;br /&gt;
 Inputs&lt;br /&gt;
 (Level&amp;#xA0;3)&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Cash equivalents:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Money market funds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;42,509&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,767&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 &lt;b&gt;Marketable securities:&lt;/b&gt;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 U.S. government securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Corporate bonds&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;22,168&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Commercial paper&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Total marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Total cash equivalents and marketable securities&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;99,868&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;14,742&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;85,126&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Marketable Securities&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following table summarizes the Company&amp;#x2019;s marketable
 securities as of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="62%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;June&amp;#xA0;30, 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,396&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(48&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,348&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,487&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(4&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,483&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,240&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;49,239&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,484&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,477&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,607&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(60&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;136,547&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="64%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="5%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"&gt;&lt;b&gt;December&amp;#xA0;31, 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&lt;b&gt;Assets:&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Amortized&lt;br /&gt;
 Cost&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Gains&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Gross&lt;br /&gt;
 Unrealized&lt;br /&gt;
 Losses&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;Fair&amp;#xA0;Value&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 U.S. government securities (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,200&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(9&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;34,191&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,716&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(18&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;18,698&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Corporate bonds (due after 1 year through 2 years)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,478&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(8&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;3,470&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Commercial paper (due within 1 year)&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,000&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,394&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(35&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;57,359&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Income (Loss) Per Share&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Upon the closing of the Company&amp;#x2019;s IPO in June 2014, all of
 the Company&amp;#x2019;s outstanding redeemable convertible preferred
 shares were converted into shares of common stock. Prior to this
 conversion, the Company followed the two-class method when
 computing net income (loss) per share as the Company had issued
 shares that meet the definition of participating securities. The
 two-class method determines net income (loss) per share for each
 class of common and participating securities according to dividends
 declared or accumulated and participation rights in undistributed
 earnings. The two-class method requires income available to common
 stockholders for the period to be allocated between common and
 participating securities based upon their respective rights to
 receive dividends as if all income for the period had been
 distributed. The Company&amp;#x2019;s redeemable convertible preferred
 shares contractually entitled the holders of such shares to
 participate in dividends, but did not contractually require the
 holders of such shares to participate in losses of the Company.
 Accordingly, the two-class method did not apply for periods in
 which the Company reported a net loss or a net loss attributable to
 common stockholders resulting from dividends or accretion related
 to its redeemable convertible preferred shares.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Basic net income (loss) per share attributable to common
 stockholders is computed by dividing the net income (loss)
 attributable to common stockholders by the weighted average number
 of common shares outstanding for the period. Diluted net income
 (loss) per share attributable to common stockholders is computed by
 dividing the diluted net income (loss) attributable to common
 stockholders by the weighted average number of common shares,
 including potential dilutive common shares assuming the dilutive
 effect of outstanding stock options and unvested restricted common
 shares, as determined using the treasury stock method. For periods
 in which the Company has reported net losses, diluted net loss per
 common share attributable to common stockholders is the same as
 basic net loss per common share attributable to common
 stockholders, since dilutive common shares are not assumed to have
 been issued if their effect is antidilutive.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The Company reported a net loss attributable to common stockholders
 for the three and six months ended June&amp;#xA0;30, 2015 and 2014.&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="69%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="2%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;three&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;
 &lt;b&gt;For&amp;#xA0;the&amp;#xA0;six&amp;#xA0;months&amp;#xA0;ended&lt;br /&gt;
 June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Basic and diluted net loss per share attributable to common
 stockholders:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Numerator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 5em; TEXT-INDENT: -1em"&gt;
 Net loss&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,400&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,858&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Accretion of redeemable convertible preferred stock to redemption
 value&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(43&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(92&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 9em; TEXT-INDENT: -1em"&gt;
 Net loss attributable to common stockholders&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(17,756&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(6,443&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(31,228&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(10,950&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Denominator:&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 7em; TEXT-INDENT: -1em"&gt;
 Weighted average of common shares outstanding, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;27,011,960&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,178,465&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;26,316,619&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,457,931&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 3em; TEXT-INDENT: -1em"&gt;
 Net loss per share attributable to common stockholders, basic and
 diluted&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(0.66&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(2.96&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1.19&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(7.51&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&amp;#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
 loss per share for the three and six months ended June&amp;#xA0;30,
 2015 and 2014, because they had an anti-dilutive impact:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="3%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"&gt;&lt;b&gt;As of June&amp;#xA0;30,&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 1pt"&gt;
 &lt;td height="8"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;td height="8" colspan="4"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Options to purchase common stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,500,741&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Unvested restricted stock&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,903&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap" align="right"&gt;
 &amp;#x2014;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;2,503,644&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;1,839,895&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &lt;b&gt;Recently Issued and Adopted Accounting Pronouncements&lt;/b&gt;&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 In August 2014, the Financial Accounting Standards Board issued
 Accounting Standards Update No.&amp;#xA0;2014-15, Presentation of
 Financial Statements &amp;#x2014; Going Concern (Subtopic 205-40). The
 new guidance addresses management&amp;#x2019;s responsibility to
 evaluate whether there is substantial doubt about an entity&amp;#x2019;s
 ability to continue as a going concern and to provide related
 footnote disclosures. Management&amp;#x2019;s evaluation should be based
 on relevant conditions and events that are known and reasonably
 knowable at the date that the financial statements are issued. The
 standard will be effective for the first interim period within
 annual reporting periods beginning after December&amp;#xA0;15, 2016.
 Early adoption is permitted. The Company is evaluating the effect
 that this guidance will have on its condensed consolidated
 financial statements.&lt;/p&gt;


 &lt;/div&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
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  <zfgn:EffectiveIncomeTaxRateReconciliationTaxRefundsRelatedToResearchAndDevelopment contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="pure" decimals="2" id="id_8624317_2B9BB8F1-7C5F-47AD-B047-207910EF718F_3_0">0.45</zfgn:EffectiveIncomeTaxRateReconciliationTaxRefundsRelatedToResearchAndDevelopment>
  <zfgn:ResearchAndDevelopmentExpensesReduction contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="iso4217_USD" decimals="-3" id="id_8624317_2B9BB8F1-7C5F-47AD-B047-207910EF718F_3_1">687000</zfgn:ResearchAndDevelopmentExpensesReduction>
  <zfgn:ScheduleOfNotesPayableTableTextBlock contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" id="id_8624317_B76D5556-42E5-43CB-87AB-74B0B7E06CEC_1_0">&lt;div&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px"&gt;
 As of June&amp;#xA0;30, 2015 and December&amp;#xA0;31, 2014, notes payable
 consist of the following:&lt;/p&gt;
 &lt;p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt &apos;Times New Roman&apos;; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"&gt;
 &amp;#xA0;&lt;/p&gt;
 &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"&gt;
 &lt;tr&gt;
 &lt;td width="76%"&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td valign="bottom" width="7%"&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;td&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 8pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;June&amp;#xA0;30,&lt;br /&gt;
 2015&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"&gt;&lt;b&gt;December&amp;#xA0;31,&lt;br /&gt;
 2014&lt;/b&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;7,500&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Less: current portion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(2,820&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(1,381&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable, net of current portion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,680&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;6,119&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Debt discount, net of accretion&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(56&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;(79&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;)&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;" bgcolor="#CCEEFF"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Accretion related to final payment&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;227&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;137&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 1px solid"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;"&gt;
 &lt;td valign="top"&gt;
 &lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: &apos;Times New Roman&apos;; MARGIN-LEFT: 1em; TEXT-INDENT: -1em"&gt;
 Notes payable, net of discount, long term&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;4,851&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;$&lt;/td&gt;
 &lt;td valign="bottom" align="right"&gt;6,177&lt;/td&gt;
 &lt;td valign="bottom" nowrap="nowrap"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr style="FONT-SIZE: 0pt"&gt;
 &lt;td valign="bottom"&gt;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;&amp;#xA0;&amp;#xA0;&lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td valign="bottom"&gt;
 &lt;p style="BORDER-TOP: rgb(0,0,0) 3px double"&gt;&amp;#xA0;&lt;/p&gt;
 &lt;/td&gt;
 &lt;td&gt;&amp;#xA0;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;


 &lt;/div&gt;</zfgn:ScheduleOfNotesPayableTableTextBlock>
  <zfgn:IncreaseDecreaseInTaxIncentivesReceivable contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0" unitRef="iso4217_USD" decimals="-3" id="id_8624317_433255A0-07E8-48BB-8E9D-90707A74BC78_1_11">687000</zfgn:IncreaseDecreaseInTaxIncentivesReceivable>
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  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0_1639081x1867606" unitRef="shares" decimals="INF" id="id_8624317_1B24840C-169E-4AD7-9B16-889FBED1EA59_2001_1">2903</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="eol_PE720058--1510-Q0005_STD_181_20150630_0_1639657x1937717" unitRef="shares" decimals="INF" id="id_8624317_3FE3BA1A-66F1-41BF-B460-89C9853B459C_2001_2">262136</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
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  <us-gaap:OperatingIncomeLoss contextRef="eol_PE720058--1510-Q0005_STD_91_20140630_0" unitRef="iso4217_USD" decimals="-3" id="id_8624317_5740C67B-3867-4730-A058-B2E7D98CE0A4_2_5">-5986000</us-gaap:OperatingIncomeLoss>
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  <us-gaap:InvestmentIncomeNet contextRef="eol_PE720058--1510-Q0005_STD_91_20140630_0" unitRef="iso4217_USD" decimals="-3" id="id_8624317_5740C67B-3867-4730-A058-B2E7D98CE0A4_2_7">1000</us-gaap:InvestmentIncomeNet>
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  <element name="CorporateDebtSecuritiesDueAfterOneYearThroughTwoYearsMember" id="zfgn_CorporateDebtSecuritiesDueAfterOneYearThroughTwoYearsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CorporateDebtSecuritiesDueWithinOneYearMember" id="zfgn_CorporateDebtSecuritiesDueWithinOneYearMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CreditFacilityMember" id="zfgn_CreditFacilityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DenominatorAbstract" id="zfgn_DenominatorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DepositsForLeasedProperty" id="zfgn_DepositsForLeasedProperty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DocumentAndEntityInformationAbstract" id="zfgn_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EffectiveIncomeTaxRateReconciliationTaxRefundsRelatedToResearchAndDevelopment" id="zfgn_EffectiveIncomeTaxRateReconciliationTaxRefundsRelatedToResearchAndDevelopment" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EquityMethodInvestmentsAndCostMethodInvestmentsAbstract" id="zfgn_EquityMethodInvestmentsAndCostMethodInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FollowOnOfferingMember" id="zfgn_FollowOnOfferingMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncreaseDecreaseInTaxIncentivesReceivable" id="zfgn_IncreaseDecreaseInTaxIncentivesReceivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InitialPublicOfferingCost" id="zfgn_InitialPublicOfferingCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LicensingFeesPerProductMaximum" id="zfgn_LicensingFeesPerProductMaximum" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MilestonePaymentAmount" id="zfgn_MilestonePaymentAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NonemployeeServiceBasedOptionsMember" id="zfgn_NonemployeeServiceBasedOptionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NotesPayableNetOfCurrent" id="zfgn_NotesPayableNetOfCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumeratorAbstract" id="zfgn_NumeratorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OfficeTwoMember" id="zfgn_OfficeTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeaseOptionForExtensionPeriod" id="zfgn_OperatingLeaseOptionForExtensionPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeasesNumberOfOptionsToExtendLease" id="zfgn_OperatingLeasesNumberOfOptionsToExtendLease" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" id="zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" id="zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
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  <element name="PreCommercializationMilestonesMember" id="zfgn_PreCommercializationMilestonesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PremiumOnMarketableSecurities" id="zfgn_PremiumOnMarketableSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ProductCommercializationMilestonesMember" id="zfgn_ProductCommercializationMilestonesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ResearchAndDevelopmentExpensesReduction" id="zfgn_ResearchAndDevelopmentExpensesReduction" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfNotesPayableTableTextBlock" id="zfgn_ScheduleOfNotesPayableTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockIssuedDuringPeriodSharesToUnderwritersForExerciseOfOverAllotmentOption" id="zfgn_StockIssuedDuringPeriodSharesToUnderwritersForExerciseOfOverAllotmentOption" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubsequentLicensedProductMember" id="zfgn_SubsequentLicensedProductMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfSignificantPoliciesLineItems" id="zfgn_SummaryOfSignificantPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfSignificantPoliciesTable" id="zfgn_SummaryOfSignificantPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="TwoThousandAndFourteenEmployeeStockPurchasePlanMember" id="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TwoThousandFourteenStockOptionMember" id="zfgn_TwoThousandFourteenStockOptionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnvestedRestrictedCommonStockMember" id="zfgn_UnvestedRestrictedCommonStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UsGovernmentSecuritiesDueWithinOneYearMember" id="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UsGovernmentSecuritiesMember" id="zfgn_UsGovernmentSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>7
<FILENAME>zfgn-20150630_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!-- RR Donnelley Xcelerate Taxonomy Calculation Linkbase, based on XBRL 2.1  http://www.rrdonnelley.com/ -->
<!-- Version: 6.22.4 -->
<!-- Round: 8 -->
<!-- Creation date: 2015-08-13T15:49:49Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xlink="http://www.w3.org/1999/xlink"
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_StatementOfFinancialPositionClassified" roleURI="http://www.zafgen.com/taxonomy/role/StatementOfFinancialPositionClassified"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_StatementOfFinancialPositionClassifiedParen" roleURI="http://www.zafgen.com/taxonomy/role/StatementOfFinancialPositionClassifiedParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_StatementOfIncome" roleURI="http://www.zafgen.com/taxonomy/role/StatementOfIncome"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_StatementOfCashFlowsIndirect" roleURI="http://www.zafgen.com/taxonomy/role/StatementOfCashFlowsIndirect"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureNatureOfTheBusinessAndBasisOfPresentationAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureNatureOfTheBusinessAndBasisOfPresentationAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCashEquivalentsAndMarketableSecurities" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCashEquivalentsAndMarketableSecurities"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfMarketableSecurities" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfMarketableSecurities"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicAndDilutedEarningsPerShare" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicAndDilutedEarningsPerShare"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCommonStockEquivalentsOutstanding" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCommonStockEquivalentsOutstanding"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureNotesPayableScheduleOfNotesPayable" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureNotesPayableScheduleOfNotesPayable"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureNotesPayableScheduleOfEstimatedFuturePrincipalPayments" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureNotesPayableScheduleOfEstimatedFuturePrincipalPayments"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureStockholdersEquityAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureStockholdersEquityAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureStockBasedAwardsAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureStockBasedAwardsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureStockBasedAwardsSummaryOfStockBasedCompensationExpenseRelatedToStockOptionsAndRestrictedCommonStock" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureStockBasedAwardsSummaryOfStockBasedCompensationExpenseRelatedToStockOptionsAndRestrictedCommonStock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureCommitmentsAndContingenciesAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureCommitmentsAndContingenciesScheduleOfFutureMinimumLeasePaymentsForOperatingLeases" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfFutureMinimumLeasePaymentsForOperatingLeases"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureRetirementPlanAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureRetirementPlanAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureAustraliaResearchAndDevelopmentTaxIncentiveAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureAustraliaResearchAndDevelopmentTaxIncentiveAdditionalInformation"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlockPolicies" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlockPolicies"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockTables" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsDebtDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsDebtDisclosureTextBlockTables" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlockTables" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsResearchDevelopmentAndComputerSoftwareDisclosureTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsResearchDevelopmentAndComputerSoftwareDisclosureTextBlock"/>
  <calculationLink xlink:type="extended" xlink:role="http://www.zafgen.com/taxonomy/role/DocumentandEntityInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.zafgen.com/taxonomy/role/StatementOfFinancialPositionClassified">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies"/>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="us-gaap_IncomeTaxesReceivable"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesReceivableNoncurrent" xlink:label="us-gaap_IncomeTaxesReceivableNoncurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent"/>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="us-gaap_NotesPayableCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue"/>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit"/>
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<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>8
<FILENAME>zfgn-20150630_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
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<!-- Round: 8 -->
<!-- Creation date: 2015-08-13T15:49:49Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>9
<FILENAME>zfgn-20150630_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!-- RR Donnelley Xcelerate Taxonomy Labels Linkbase, based on XBRL 2.1  http://www.rrdonnelley.com/ -->
<!-- Version: 6.22.4 -->
<!-- Round: 8 -->
<!-- Creation date: 2015-08-13T15:49:49Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CorporateBondSecuritiesMember_lbl" xml:lang="en-US" id="id_8624317_1635118_2_1">Corporate Bonds [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_CorporateDebtSecuritiesDueAfterOneYearThroughTwoYearsMember_lbl" xml:lang="en-US" id="id_8624317_1832727_3_1">Corporate Debt Securities Due After One Year Through Two Years [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CreditFacilityDomain_lbl" xml:lang="en-US" id="id_8624317_1633092_1_1">Credit Facility [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CreditFacilityDomain_lbl" xml:lang="en-US" id="id_8624317_1633092_2_1">Credit Facility [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CreditFacilityDomain" xlink:to="us-gaap_CreditFacilityDomain_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_CreditFacilityMember_lbl" xml:lang="en-US" id="id_8624317_1745947_3_1">Credit Facility [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US" id="id_8624317_1638733_1_1">Current Fiscal Year End Date</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xml:lang="en-US" id="id_8624317_1640266_1_1">Debt Disclosure [Abstract]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_DebtDisclosureAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="us-gaap_DebtDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xml:lang="en-US" id="id_8624317_1633888_1_1">Debt Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xml:lang="en-US" id="id_8624317_1633888_2_1">Notes Payable</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xml:lang="en-US" id="id_8624317_1631481_1_1">Debt Instrument, Interest Rate, Effective Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xml:lang="en-US" id="id_8624317_1631481_2_1">Effective annual interest rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:to="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xml:lang="en-US" id="id_8624317_1639119_1_1">Debt Instrument [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xml:lang="en-US" id="id_8624317_1639119_2_1">Debt Instrument [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentLineItems" xlink:to="us-gaap_DebtInstrumentLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid_lbl" xml:lang="en-US" id="id_8624317_1645008_1_1">Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid_lbl" xml:lang="en-US" id="id_8624317_1645008_2_1">Accretion related to final payment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="us-gaap_DebtInstrumentsAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xml:lang="en-US" id="id_8624317_1635518_1_1">Debt Instruments [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xml:lang="en-US" id="id_8624317_1635518_2_1">Debt Instruments [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentsAbstract" xlink:to="us-gaap_DebtInstrumentsAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="us-gaap_DebtInstrumentTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentTable_lbl" xml:lang="en-US" id="id_8624317_1634296_1_1">Schedule of Long-term Debt Instruments [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentTable_lbl" xml:lang="en-US" id="id_8624317_1634296_2_1">Schedule of Long-term Debt Instruments [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTable" xlink:to="us-gaap_DebtInstrumentTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xml:lang="en-US" id="id_8624317_1649754_1_1">Debt Instrument, Unamortized Discount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xml:lang="en-US" id="id_8624317_1649754_14_1">Debt discount, net of accretion</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscount" xlink:to="us-gaap_DebtInstrumentUnamortizedDiscount_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xlink:label="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction_lbl" xml:lang="en-US" id="id_8624317_1651430_1_1">Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction_lbl" xml:lang="en-US" id="id_8624317_1651430_2_1">Deferred offering costs included in accounts payable and accrued expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xlink:to="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="us-gaap_DefinedContributionPlanCostRecognized"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedContributionPlanCostRecognized_lbl" xml:lang="en-US" id="id_8624317_1649641_2_1">Contribution expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanCostRecognized" xlink:to="us-gaap_DefinedContributionPlanCostRecognized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_lbl" xml:lang="en-US" id="id_8624317_1636727_1_1">Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_lbl" xml:lang="en-US" id="id_8624317_1636727_2_1">Percentage of employer's contribution on employee's base salary</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:to="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_DenominatorAbstract" xlink:label="zfgn_DenominatorAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_DenominatorAbstract_lbl" xml:lang="en-US" id="id_8624317_1789733_3_1">Denominator [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_DenominatorAbstract_lbl" xml:lang="en-US" id="id_8624317_1789733_1_1">Denominator [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_DenominatorAbstract_lbl" xml:lang="en-US" id="id_8624317_1789733_2_1">Denominator:</label>
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    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_DepositsForLeasedProperty" xlink:label="zfgn_DepositsForLeasedProperty"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_DepositsForLeasedProperty_lbl" xml:lang="en-US" id="id_8624317_1977391_3_1">The amount of cash paid for deposits on leased property.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_DepositsForLeasedProperty_lbl" xml:lang="en-US" id="id_8624317_1977391_1_1">Deposits For Leased Property</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_DepositsForLeasedProperty" xlink:to="zfgn_DepositsForLeasedProperty_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Depreciation" xlink:label="us-gaap_Depreciation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US" id="id_8624317_1651565_1_1">Depreciation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US" id="id_8624317_1651565_2_1">Depreciation expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="us-gaap_Depreciation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xml:lang="en-US" id="id_8624317_1640297_1_1">Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xml:lang="en-US" id="id_8624317_1640297_2_1">Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xml:lang="en-US" id="id_8624317_1642836_1_1">Disclosure of Compensation Related Costs, Share-based Payments [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xml:lang="en-US" id="id_8624317_1642836_2_1">Stock-Based Awards</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_DocumentAndEntityInformationAbstract" xlink:label="zfgn_DocumentAndEntityInformationAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US" id="id_8624317_1666892_3_1">Document And Entity Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US" id="id_8624317_1666892_1_1">Document And Entity Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US" id="id_8624317_1666892_2_1">Document And Entity Information [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_DocumentAndEntityInformationAbstract" xlink:to="zfgn_DocumentAndEntityInformationAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US" id="id_8624317_1631516_1_1">Document Fiscal Period Focus</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US" id="id_8624317_1631516_2_1">Document Fiscal Period Focus</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus"/>
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    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_FollowOnOfferingMember" xlink:label="zfgn_FollowOnOfferingMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_FollowOnOfferingMember_lbl" xml:lang="en-US" id="id_8624317_1676073_3_1">Follow On Offering [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_FollowOnOfferingMember_lbl" xml:lang="en-US" id="id_8624317_1676073_1_1">Follow On Offering [Member]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ForeignCurrencyTransactionGainLossUnrealized" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US" id="id_8624317_1650296_1_1">General and Administrative Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US" id="id_8624317_1650296_2_1">General and administrative</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xml:lang="en-US" id="id_8624317_1639948_1_1">General and Administrative Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xml:lang="en-US" id="id_8624317_1639948_2_1">General and Administrative [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpenseMember" xlink:to="us-gaap_GeneralAndAdministrativeExpenseMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US" id="id_8624317_1631567_1_1">Income Statement [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US" id="id_8624317_1631567_2_1">Income Statement [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="us-gaap_IncomeStatementLocationAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xml:lang="en-US" id="id_8624317_1634394_1_1">Income Statement Location [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xml:lang="en-US" id="id_8624317_1634394_2_1">Income Statement Location [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationAxis" xlink:to="us-gaap_IncomeStatementLocationAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="us-gaap_IncomeStatementLocationDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xml:lang="en-US" id="id_8624317_1635998_1_1">Income Statement Location [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xml:lang="en-US" id="id_8624317_1635998_2_1">Income Statement Location [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationDomain" xlink:to="us-gaap_IncomeStatementLocationDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="us-gaap_IncomeTaxesReceivable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xml:lang="en-US" id="id_8624317_1648421_1_1">Income Taxes Receivable, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xml:lang="en-US" id="id_8624317_1648421_2_1">Tax incentive receivable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesReceivable" xlink:to="us-gaap_IncomeTaxesReceivable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesReceivableNoncurrent" xlink:label="us-gaap_IncomeTaxesReceivableNoncurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesReceivableNoncurrent_lbl" xml:lang="en-US" id="id_8624317_1648179_1_1">Income Taxes Receivable, Noncurrent</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesReceivableNoncurrent" xlink:to="us-gaap_IncomeTaxesReceivableNoncurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxReceivable" xlink:label="us-gaap_IncomeTaxReceivable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxReceivable_lbl" xml:lang="en-US" id="id_8624317_1648549_1_1">Income Taxes Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxReceivable_lbl" xml:lang="en-US" id="id_8624317_1648549_2_1">Tax incentive receivable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReceivable" xlink:to="us-gaap_IncomeTaxReceivable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xml:lang="en-US" id="id_8624317_1651075_1_1">Increase (Decrease) in Accounts Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xml:lang="en-US" id="id_8624317_1651075_2_1">Accounts payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xml:lang="en-US" id="id_8624317_1649795_1_1">Increase (Decrease) in Accrued Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xml:lang="en-US" id="id_8624317_1649795_2_1">Accrued expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US" id="id_8624317_1631969_1_1">Increase (Decrease) in Operating Capital [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US" id="id_8624317_1631969_2_1">Changes in operating assets and liabilities:</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xml:lang="en-US" id="id_8624317_1645210_1_1">Increase (Decrease) in Prepaid Expense and Other Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xml:lang="en-US" id="id_8624317_1645210_14_1">Prepaid expenses and other current assets</label>
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    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_IncreaseDecreaseInTaxIncentivesReceivable" xlink:label="zfgn_IncreaseDecreaseInTaxIncentivesReceivable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_IncreaseDecreaseInTaxIncentivesReceivable_lbl" xml:lang="en-US" id="id_8624317_1822475_3_1">The increase (decrease) during the reporting period in tax incentive receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of taxes paid.</label>
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    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_InitialPublicOfferingCost" xlink:label="zfgn_InitialPublicOfferingCost"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_InitialPublicOfferingCost_lbl" xml:lang="en-US" id="id_8624317_1763574_3_1">Initial Public Offering Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_InitialPublicOfferingCost_lbl" xml:lang="en-US" id="id_8624317_1763574_1_1">Initial Public Offering Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_InitialPublicOfferingCost_lbl" xml:lang="en-US" id="id_8624317_1763574_2_1">Offering costs</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US" id="id_8624317_1649043_1_1">Interest Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US" id="id_8624317_1649043_14_1">Interest expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPaid" xlink:label="us-gaap_InterestPaid"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US" id="id_8624317_1644975_1_1">Interest Paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US" id="id_8624317_1644975_2_1">Cash paid for interest</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaid" xlink:to="us-gaap_InterestPaid_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InvestmentIncomeAmortizationOfPremium" xlink:label="us-gaap_InvestmentIncomeAmortizationOfPremium"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentIncomeAmortizationOfPremium_lbl" xml:lang="en-US" id="id_8624317_1648426_1_1">Investment Income, Amortization of Premium</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentIncomeAmortizationOfPremium_lbl" xml:lang="en-US" id="id_8624317_1648426_2_1">Amortization of premium on marketable securities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeAmortizationOfPremium" xlink:to="us-gaap_InvestmentIncomeAmortizationOfPremium_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IPOMember_lbl" xml:lang="en-US" id="id_8624317_1634411_1_1">IPO [Member]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseExpirationDate1" xlink:label="us-gaap_LeaseExpirationDate1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseExpirationDate1_lbl" xml:lang="en-US" id="id_8624317_1644113_1_1">Lease Expiration Date</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseExpirationDate1" xlink:to="us-gaap_LeaseExpirationDate1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US" id="id_8624317_1646694_1_1">Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US" id="id_8624317_1646694_6_1">Total liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="id_8624317_1646695_1_1">Liabilities and Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="id_8624317_1646695_6_1">Total liabilities and stockholders' equity</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_8624317_1636826_1_1">Liabilities and Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_8624317_1636826_2_1">Liabilities and Stockholders' Equity</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="id_8624317_1647463_1_1">Liabilities, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="id_8624317_1647463_6_1">Total current liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="id_8624317_1639229_1_1">Liabilities, Current [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="id_8624317_1639229_2_1">Current liabilities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_LicensingFeesPerProductMaximum" xlink:label="zfgn_LicensingFeesPerProductMaximum"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_LicensingFeesPerProductMaximum_lbl" xml:lang="en-US" id="id_8624317_1673817_3_1">Maximum fee the Company is obligated to pay per licensed product.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_LicensingFeesPerProductMaximum_lbl" xml:lang="en-US" id="id_8624317_1673817_1_1">Licensing Fees Per Product Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_LicensingFeesPerProductMaximum_lbl" xml:lang="en-US" id="id_8624317_1673817_2_1">Licensing fees per product maximum</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_LicensingFeesPerProductMaximum" xlink:to="zfgn_LicensingFeesPerProductMaximum_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityPeriodicPaymentInterest" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_lbl" xml:lang="en-US" id="id_8624317_1650456_1_1">Line of Credit Facility, Periodic Payment, Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_lbl" xml:lang="en-US" id="id_8624317_1650456_2_1">Interest expense on credit facility</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest" xlink:to="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US" id="id_8624317_1645693_1_1">Long-term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US" id="id_8624317_1645693_6_1">Total</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xml:lang="en-US" id="id_8624317_1645194_1_1">Long-term Debt, Maturities, Repayments of Principal in Year Three</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xml:lang="en-US" id="id_8624317_1645194_2_1">2017</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xml:lang="en-US" id="id_8624317_1644642_1_1">Long-term Debt, Maturities, Repayments of Principal in Year Two</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xml:lang="en-US" id="id_8624317_1644642_2_1">2016</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xml:lang="en-US" id="id_8624317_1645076_1_1">Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xml:lang="en-US" id="id_8624317_1645076_2_1">2015</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermNotesPayable" xlink:label="us-gaap_LongTermNotesPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermNotesPayable_lbl" xml:lang="en-US" id="id_8624317_1644883_1_1">Notes Payable, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermNotesPayable_lbl" xml:lang="en-US" id="id_8624317_1644883_2_1">Notes payable, net of discount, long-term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LongTermNotesPayable_lbl" xml:lang="en-US" id="id_8624317_1644883_6_1">Notes payable, net of discount, long term</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermNotesPayable" xlink:to="us-gaap_LongTermNotesPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl" xml:lang="en-US" id="id_8624317_1632391_1_1">Category of Item Purchased [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl" xml:lang="en-US" id="id_8624317_1632391_2_1">Category of Item Purchased [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:to="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl" xml:lang="en-US" id="id_8624317_1636434_1_1">Long-term Purchase Commitment, Category of Item Purchased [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl" xml:lang="en-US" id="id_8624317_1636434_2_1">Long-term Purchase Commitment, Category of Item Purchased [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:to="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="us-gaap_MarketableSecuritiesPolicy"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xml:lang="en-US" id="id_8624317_1637629_1_1">Marketable Securities, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xml:lang="en-US" id="id_8624317_1637629_2_1">Marketable Securities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketableSecuritiesPolicy" xlink:to="us-gaap_MarketableSecuritiesPolicy_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="us-gaap_MaximumMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MaximumMember_lbl" xml:lang="en-US" id="id_8624317_1633605_1_1">Maximum [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MaximumMember_lbl" xml:lang="en-US" id="id_8624317_1633605_2_1">Maximum [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MaximumMember" xlink:to="us-gaap_MaximumMember_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_MilestonePaymentAmount" xlink:label="zfgn_MilestonePaymentAmount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_MilestonePaymentAmount_lbl" xml:lang="en-US" id="id_8624317_1957406_3_1">Amount of payment due upon reaching milestone.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_MilestonePaymentAmount_lbl" xml:lang="en-US" id="id_8624317_1957406_1_1">Milestone Payment Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_MilestonePaymentAmount_lbl" xml:lang="en-US" id="id_8624317_1957406_2_1">Milestone payments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_MilestonePaymentAmount" xlink:to="zfgn_MilestonePaymentAmount_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="us-gaap_MoneyMarketFundsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US" id="id_8624317_1637231_1_1">Money Market Funds [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US" id="id_8624317_1637231_2_1">Money Market Funds [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MoneyMarketFundsMember" xlink:to="us-gaap_MoneyMarketFundsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1638871_1_1">Net Cash Provided by (Used in) Financing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1638871_2_1">Cash flows from financing activities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1649336_1_1">Net Cash Provided by (Used in) Financing Activities, Continuing Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1649336_6_1">Net cash provided by financing activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1635651_1_1">Net Cash Provided by (Used in) Investing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1635651_2_1">Cash flows from investing activities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1649062_1_1">Net Cash Provided by (Used in) Investing Activities, Continuing Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1649062_6_1">Net cash used in investing activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1638472_1_1">Net Cash Provided by (Used in) Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_8624317_1638472_2_1">Cash flows from operating activities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1631616_1_1">Net Cash Provided by (Used in) Operating Activities, Continuing Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xml:lang="en-US" id="id_8624317_1631616_6_1">Net cash used in operating activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_8624317_1644530_1_1">Net Income (Loss) Attributable to Parent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_8624317_1644530_2_1">Net loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_8624317_1644530_6_1">Net loss</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_8624317_1644761_1_1">Net Income (Loss) Available to Common Stockholders, Basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_8624317_1644761_2_1">Net loss attributable to common stockholders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_8624317_1644761_6_1">Net loss attributable to common stockholders</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_8624317_1642952_1_1">New Accounting Pronouncements, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_8624317_1642952_2_1">Recently Issued and Adopted Accounting Pronouncements</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_NonemployeeServiceBasedOptionsMember" xlink:label="zfgn_NonemployeeServiceBasedOptionsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_NonemployeeServiceBasedOptionsMember_lbl" xml:lang="en-US" id="id_8624317_1707670_3_1">Nonemployee Service Based Options [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_NonemployeeServiceBasedOptionsMember_lbl" xml:lang="en-US" id="id_8624317_1707670_1_1">Nonemployee Service Based Options [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_NonemployeeServiceBasedOptionsMember_lbl" xml:lang="en-US" id="id_8624317_1707670_2_1">Nonemployee Service Based Options [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_NonemployeeServiceBasedOptionsMember" xlink:to="zfgn_NonemployeeServiceBasedOptionsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="us-gaap_NonoperatingIncomeExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xml:lang="en-US" id="id_8624317_1645682_1_1">Nonoperating Income (Expense)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xml:lang="en-US" id="id_8624317_1645682_6_1">Total other income (expense), net</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpense" xlink:to="us-gaap_NonoperatingIncomeExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NotesPayable" xlink:label="us-gaap_NotesPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NotesPayable_lbl" xml:lang="en-US" id="id_8624317_1647328_1_1">Notes Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NotesPayable_lbl" xml:lang="en-US" id="id_8624317_1647328_2_1">Notes payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayable" xlink:to="us-gaap_NotesPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="us-gaap_NotesPayableCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NotesPayableCurrent_lbl" xml:lang="en-US" id="id_8624317_1647914_1_1">Notes Payable, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NotesPayableCurrent_lbl" xml:lang="en-US" id="id_8624317_1647914_2_1">Notes payable, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_NotesPayableCurrent_lbl" xml:lang="en-US" id="id_8624317_1647914_14_1">Less: current portion</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayableCurrent" xlink:to="us-gaap_NotesPayableCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_NotesPayableNetOfCurrent" xlink:label="zfgn_NotesPayableNetOfCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_NotesPayableNetOfCurrent_lbl" xml:lang="en-US" id="id_8624317_1974449_3_1">The net amount of total notes payable less the current portion of notes payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_NotesPayableNetOfCurrent_lbl" xml:lang="en-US" id="id_8624317_1974449_1_1">Notes Payable Net Of Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_NotesPayableNetOfCurrent_lbl" xml:lang="en-US" id="id_8624317_1974449_2_1">Notes payable, net of current portion</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_NotesPayableNetOfCurrent" xlink:to="zfgn_NotesPayableNetOfCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_NumeratorAbstract" xlink:label="zfgn_NumeratorAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_NumeratorAbstract_lbl" xml:lang="en-US" id="id_8624317_1943599_3_1">Numerator [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_NumeratorAbstract_lbl" xml:lang="en-US" id="id_8624317_1943599_1_1">Numerator [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_NumeratorAbstract_lbl" xml:lang="en-US" id="id_8624317_1943599_2_1">Numerator:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_NumeratorAbstract" xlink:to="zfgn_NumeratorAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_OfficeTwoMember" xlink:label="zfgn_OfficeTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_OfficeTwoMember_lbl" xml:lang="en-US" id="id_8624317_1723788_3_1">Office Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_OfficeTwoMember_lbl" xml:lang="en-US" id="id_8624317_1723788_1_1">Office Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_OfficeTwoMember_lbl" xml:lang="en-US" id="id_8624317_1723788_2_1">Office Two [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_OfficeTwoMember" xlink:to="zfgn_OfficeTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US" id="id_8624317_1648944_1_1">Operating Expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US" id="id_8624317_1648944_6_1">Total operating expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US" id="id_8624317_1632029_1_1">Operating Expenses [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US" id="id_8624317_1632029_2_1">Operating expenses:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US" id="id_8624317_1645424_1_1">Operating Income (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US" id="id_8624317_1645424_6_1">Loss from operations</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_OperatingLeaseOptionForExtensionPeriod" xlink:label="zfgn_OperatingLeaseOptionForExtensionPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_OperatingLeaseOptionForExtensionPeriod_lbl" xml:lang="en-US" id="id_8624317_1668477_3_1">Operating Lease Option For Extension Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_OperatingLeaseOptionForExtensionPeriod_lbl" xml:lang="en-US" id="id_8624317_1668477_1_1">Operating Lease Option For Extension Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_OperatingLeaseOptionForExtensionPeriod_lbl" xml:lang="en-US" id="id_8624317_1668477_2_1">Lease extension period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_OperatingLeaseOptionForExtensionPeriod" xlink:to="zfgn_OperatingLeaseOptionForExtensionPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xml:lang="en-US" id="id_8624317_1644876_1_1">Operating Leases, Future Minimum Payments Due</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xml:lang="en-US" id="id_8624317_1644876_6_1">Total</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_lbl" xml:lang="en-US" id="id_8624317_1647781_1_1">Operating Leases, Future Minimum Payments, Due in Three Years</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_lbl" xml:lang="en-US" id="id_8624317_1647781_2_1">2017</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xml:lang="en-US" id="id_8624317_1644405_1_1">Operating Leases, Future Minimum Payments, Due in Two Years</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xml:lang="en-US" id="id_8624317_1644405_2_1">2016</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear_lbl" xml:lang="en-US" id="id_8624317_1645423_1_1">Operating Leases, Future Minimum Payments, Remainder of Fiscal Year</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_OperatingLeasesNumberOfOptionsToExtendLease_lbl" xml:lang="en-US" id="id_8624317_1840367_3_1">Operating Leases Number Of Options To Extend Lease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_OperatingLeasesNumberOfOptionsToExtendLease_lbl" xml:lang="en-US" id="id_8624317_1840367_1_1">Operating Leases Number Of Options To Extend Lease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_OperatingLeasesNumberOfOptionsToExtendLease_lbl" xml:lang="en-US" id="id_8624317_1840367_2_1">Number of options to extend lease</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="us-gaap_OperatingLeasesRentExpenseNet"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesRentExpenseNet_lbl" xml:lang="en-US" id="id_8624317_1648832_1_1">Operating Leases, Rent Expense, Net</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLossCarryforwardsTable_lbl" xml:lang="en-US" id="id_8624317_1637659_2_1">Operating Loss Carryforwards [Table]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems_lbl" xml:lang="en-US" id="id_8624317_1897242_1_1">Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_lbl" xml:lang="en-US" id="id_8624317_1646999_2_1">Unrealized loss on marketable securities</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="us-gaap_PaidInKindInterest"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquireMarketableSecurities_lbl" xml:lang="en-US" id="id_8624317_1644506_14_1">Purchases of marketable securities</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_8624317_1644389_1_1">Payments to Acquire Property, Plant, and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_8624317_1644389_14_1">Purchases of property and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xml:lang="en-US" id="id_8624317_1632439_1_1">Pension and Other Postretirement Benefits Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xml:lang="en-US" id="id_8624317_1632439_2_1">Retirement Plan</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_PercentageReductionResearchAndDevelopmentCosts" xlink:label="zfgn_PercentageReductionResearchAndDevelopmentCosts"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_PercentageReductionResearchAndDevelopmentCosts_lbl" xml:lang="en-US" id="id_8624317_1699924_3_1">The percentage of research and development costs to be reduced.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_PercentageReductionResearchAndDevelopmentCosts_lbl" xml:lang="en-US" id="id_8624317_1699924_1_1">Percentage Reduction Research And Development Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_PercentageReductionResearchAndDevelopmentCosts_lbl" xml:lang="en-US" id="id_8624317_1699924_2_1">Percentage of reduction in research and development costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_PercentageReductionResearchAndDevelopmentCosts" xlink:to="zfgn_PercentageReductionResearchAndDevelopmentCosts_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US" id="id_8624317_1639657_1_1">Plan Name [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US" id="id_8624317_1639657_2_1">Plan Name [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="us-gaap_PlanNameDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameDomain_lbl" xml:lang="en-US" id="id_8624317_1637683_1_1">Plan Name [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PlanNameDomain_lbl" xml:lang="en-US" id="id_8624317_1637683_2_1">Plan Name [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_PreCommercializationMilestonesMember" xlink:label="zfgn_PreCommercializationMilestonesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_PreCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1675013_3_1">Pre Commercialization Milestones [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_PreCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1675013_1_1">Pre Commercialization Milestones [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_PreCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1675013_2_1">Pre Commercialization Milestones [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_PreCommercializationMilestonesMember" xlink:to="zfgn_PreCommercializationMilestonesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_8624317_1642594_1_1">Preferred Stock, Par or Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_8624317_1642594_2_1">Preferred stock, par value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="id_8624317_1639289_1_1">Preferred Stock, Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="id_8624317_1639289_2_1">Preferred stock, shares authorized</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US" id="id_8624317_1640465_1_1">Preferred Stock, Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US" id="id_8624317_1640465_2_1">Preferred stock, shares issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US" id="id_8624317_1634872_1_1">Preferred Stock, Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US" id="id_8624317_1634872_2_1">Preferred stock, shares outstanding</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US" id="id_8624317_1647540_1_1">Preferred Stock, Value, Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US" id="id_8624317_1647540_2_1">Preferred stock; $0.001 par value; 5,000,000 shares authorized at June 30, 2015 and December 31, 2014; no shares issued and outstanding at June 30, 2015 and December 31, 2014</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_PremiumOnMarketableSecurities" xlink:label="zfgn_PremiumOnMarketableSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_PremiumOnMarketableSecurities_lbl" xml:lang="en-US" id="id_8624317_1922210_3_1">The cash outflow associated with the premium paid on marketable securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_PremiumOnMarketableSecurities_lbl" xml:lang="en-US" id="id_8624317_1922210_1_1">Premium On Marketable Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="zfgn_PremiumOnMarketableSecurities_lbl" xml:lang="en-US" id="id_8624317_1922210_14_1">Premium on purchases of marketable securities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_PremiumOnMarketableSecurities" xlink:to="zfgn_PremiumOnMarketableSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US" id="id_8624317_1650984_1_1">Prepaid Expense and Other Assets, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US" id="id_8624317_1650984_2_1">Prepaid expenses and other current assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xml:lang="en-US" id="id_8624317_1650988_1_1">Proceeds from Issuance Initial Public Offering</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xml:lang="en-US" id="id_8624317_1650988_2_1">Proceeds from public offerings, net of commissions and underwriting discounts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:to="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US" id="id_8624317_1649597_1_1">Proceeds from Issuance of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US" id="id_8624317_1649597_2_1">Proceeds from offering, net of commissions and underwriting discounts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_8624317_1649980_1_1">Proceeds from Issuance of Redeemable Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_8624317_1649980_2_1">Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" xlink:to="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl" xml:lang="en-US" id="id_8624317_1650105_1_1">Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl" xml:lang="en-US" id="id_8624317_1650105_2_1">Proceeds from exercise of common stock options and issuance of common stock pursuant to employee stock purchase plan</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:to="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromNotesPayable" xlink:label="us-gaap_ProceedsFromNotesPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xml:lang="en-US" id="id_8624317_1651378_1_1">Proceeds from Notes Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xml:lang="en-US" id="id_8624317_1651378_2_1">Proceeds from issuance of notes payable, net of issuance costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromNotesPayable" xlink:to="us-gaap_ProceedsFromNotesPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_lbl" xml:lang="en-US" id="id_8624317_1650584_1_1">Proceeds from Sale and Maturity of Available-for-sale Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_lbl" xml:lang="en-US" id="id_8624317_1650584_2_1">Proceeds from maturities of marketable securities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_ProductCommercializationMilestonesMember" xlink:label="zfgn_ProductCommercializationMilestonesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_ProductCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1658656_3_1">Product Commercialization Milestones [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_ProductCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1658656_1_1">Product Commercialization Milestones [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_ProductCommercializationMilestonesMember_lbl" xml:lang="en-US" id="id_8624317_1658656_2_1">Product Commercialization Milestones [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_ProductCommercializationMilestonesMember" xlink:to="zfgn_ProductCommercializationMilestonesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="id_8624317_1649598_1_1">Property, Plant and Equipment, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="id_8624317_1649598_2_1">Property and equipment, net</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="us-gaap_RangeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RangeAxis_lbl" xml:lang="en-US" id="id_8624317_1639304_1_1">Range [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RangeAxis_lbl" xml:lang="en-US" id="id_8624317_1639304_2_1">Range [Axis]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xml:lang="en-US" id="id_8624317_1637033_1_1">Sale of Stock [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xml:lang="en-US" id="id_8624317_1637033_2_1">Sale of Stock [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_SummaryOfSignificantPoliciesLineItems" xlink:label="zfgn_SummaryOfSignificantPoliciesLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_SummaryOfSignificantPoliciesLineItems_lbl" xml:lang="en-US" id="id_8624317_1685287_3_1">Summary Of Significant Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_SummaryOfSignificantPoliciesLineItems_lbl" xml:lang="en-US" id="id_8624317_1685287_1_1">Summary Of Significant Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_SummaryOfSignificantPoliciesLineItems_lbl" xml:lang="en-US" id="id_8624317_1685287_2_1">Summary Of Significant Policies [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_SummaryOfSignificantPoliciesLineItems" xlink:to="zfgn_SummaryOfSignificantPoliciesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_SummaryOfSignificantPoliciesTable" xlink:label="zfgn_SummaryOfSignificantPoliciesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_SummaryOfSignificantPoliciesTable_lbl" xml:lang="en-US" id="id_8624317_1905247_3_1">Summary Of Significant Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_SummaryOfSignificantPoliciesTable_lbl" xml:lang="en-US" id="id_8624317_1905247_1_1">Summary Of Significant Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_SummaryOfSignificantPoliciesTable_lbl" xml:lang="en-US" id="id_8624317_1905247_2_1">Summary Of Significant Policies [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_SummaryOfSignificantPoliciesTable" xlink:to="zfgn_SummaryOfSignificantPoliciesTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US" id="id_8624317_1643862_1_1">Supplemental Cash Flow Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US" id="id_8624317_1643862_2_1">Supplemental disclosure of cash flow information:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="us-gaap_TaxCreditCarryforwardAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TaxCreditCarryforwardAxis_lbl" xml:lang="en-US" id="id_8624317_1638254_1_1">Tax Credit Carryforward [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TaxCreditCarryforwardAxis_lbl" xml:lang="en-US" id="id_8624317_1638254_2_1">Tax Credit Carryforward [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxCreditCarryforwardAxis" xlink:to="us-gaap_TaxCreditCarryforwardAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="us-gaap_TaxCreditCarryforwardNameDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TaxCreditCarryforwardNameDomain_lbl" xml:lang="en-US" id="id_8624317_1644267_1_1">Tax Credit Carryforward, Name [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TaxCreditCarryforwardNameDomain_lbl" xml:lang="en-US" id="id_8624317_1644267_2_1">Tax Credit Carryforward, Name [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxCreditCarryforwardNameDomain" xlink:to="us-gaap_TaxCreditCarryforwardNameDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xml:lang="en-US" id="id_8624317_1648114_1_1">Temporary Equity, Accretion to Redemption Value, Adjustment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xml:lang="en-US" id="id_8624317_1648114_2_1">Accretion of redeemable convertible preferred stock to redemption values</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xml:lang="en-US" id="id_8624317_1648114_14_1">Accretion of redeemable convertible preferred stock to redemption value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment" xlink:to="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US" id="id_8624317_1643125_1_1">Trading Symbol</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US" id="id_8624317_1643125_2_1">Trading Symbol</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember" xlink:label="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember_lbl" xml:lang="en-US" id="id_8624317_1937717_3_1">Two Thousand And Fourteen Employee Stock Purchase Plan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember_lbl" xml:lang="en-US" id="id_8624317_1937717_1_1">Two Thousand And Fourteen Employee Stock Purchase Plan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember_lbl" xml:lang="en-US" id="id_8624317_1937717_2_1">2014 Employee Stock Purchase Plan [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember" xlink:to="zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_TwoThousandFourteenStockOptionMember" xlink:label="zfgn_TwoThousandFourteenStockOptionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_TwoThousandFourteenStockOptionMember_lbl" xml:lang="en-US" id="id_8624317_1863081_3_1">Two Thousand Fourteen Stock Option [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_TwoThousandFourteenStockOptionMember_lbl" xml:lang="en-US" id="id_8624317_1863081_1_1">Two Thousand Fourteen Stock Option [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_TwoThousandFourteenStockOptionMember_lbl" xml:lang="en-US" id="id_8624317_1863081_2_1">2014 Stock Option and Incentive Plan [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_TwoThousandFourteenStockOptionMember" xlink:to="zfgn_TwoThousandFourteenStockOptionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_UnvestedRestrictedCommonStockMember" xlink:label="zfgn_UnvestedRestrictedCommonStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_UnvestedRestrictedCommonStockMember_lbl" xml:lang="en-US" id="id_8624317_1867606_3_1">Unvested restricted common stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_UnvestedRestrictedCommonStockMember_lbl" xml:lang="en-US" id="id_8624317_1867606_1_1">Unvested Restricted Common Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_UnvestedRestrictedCommonStockMember_lbl" xml:lang="en-US" id="id_8624317_1867606_2_1">Unvested Restricted Stock [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_UnvestedRestrictedCommonStockMember" xlink:to="zfgn_UnvestedRestrictedCommonStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US" id="id_8624317_1642359_1_1">Use of Estimates, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US" id="id_8624317_1642359_2_1">Use of Estimates</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_UsGovernmentSecuritiesDueWithinOneYearMember" xlink:label="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember_lbl" xml:lang="en-US" id="id_8624317_1885455_3_1">Us Government Securities Due Within One Year [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember_lbl" xml:lang="en-US" id="id_8624317_1885455_1_1">Us Government Securities Due Within One Year [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember_lbl" xml:lang="en-US" id="id_8624317_1885455_2_1">U.S. Government Securities (Due within 1 Year) [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember" xlink:to="zfgn_UsGovernmentSecuritiesDueWithinOneYearMember_lbl"/>
    <loc xlink:type="locator" xlink:href="zfgn-20150630.xsd#zfgn_UsGovernmentSecuritiesMember" xlink:label="zfgn_UsGovernmentSecuritiesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="zfgn_UsGovernmentSecuritiesMember_lbl" xml:lang="en-US" id="id_8624317_1702589_3_1">Us Government Securities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="zfgn_UsGovernmentSecuritiesMember_lbl" xml:lang="en-US" id="id_8624317_1702589_1_1">Us Government Securities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="zfgn_UsGovernmentSecuritiesMember_lbl" xml:lang="en-US" id="id_8624317_1702589_2_1">U.S. Government Securities [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_8624317_1643551_1_1">Weighted Average Number of Shares Outstanding, Basic and Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_8624317_1643551_2_1">Weighted average common shares outstanding, basic and diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_8624317_1643551_12_1">Weighted average of common shares outstanding, basic and diluted</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl"/>
  </labelLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>10
<FILENAME>zfgn-20150630_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!-- RR Donnelley Xcelerate Taxonomy Presentation Linkbase, based on XBRL 2.1  http://www.rrdonnelley.com/ -->
<!-- Version: 6.22.4 -->
<!-- Round: 8 -->
<!-- Creation date: 2015-08-13T15:49:49Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureStockholdersEquityAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureStockholdersEquityAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#DisclosureStockBasedAwardsAdditionalInformation" roleURI="http://www.zafgen.com/taxonomy/role/DisclosureStockBasedAwardsAdditionalInformation"/>
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  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlock" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="zfgn-20150630.xsd#Role_NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlockPolicies" roleURI="http://www.zafgen.com/taxonomy/role/NotesToFinancialStatementsBusinessDescriptionAndBasisOfPresentationTextBlockPolicies"/>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484490048">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Awards - Summary of Stock-Based Compensation Expense Related to Stock Options and Restricted Common Stock (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Total stock-based compensation expense</a></td>
<td class="nump">$ 1,939<span></span>
</td>
<td class="nump">$ 268<span></span>
</td>
<td class="nump">$ 2,996<span></span>
</td>
<td class="nump">$ 444<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember', window );">Research and Development [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Total stock-based compensation expense</a></td>
<td class="nump">738<span></span>
</td>
<td class="nump">99<span></span>
</td>
<td class="nump">1,142<span></span>
</td>
<td class="nump">168<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember', window );">General and Administrative [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Total stock-based compensation expense</a></td>
<td class="nump">$ 1,201<span></span>
</td>
<td class="nump">$ 169<span></span>
</td>
<td class="nump">$ 1,854<span></span>
</td>
<td class="nump">$ 276<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SAB TOPIC 14.F)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5047-113901<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (h)(1)(i)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 14<br><br><br><br> -Section F<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484642464">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_NumeratorAbstract', window );"><strong>Numerator:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (17,756)<span></span>
</td>
<td class="num">$ (6,400)<span></span>
</td>
<td class="num">$ (31,228)<span></span>
</td>
<td class="num">$ (10,858)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment', window );">Accretion of redeemable convertible preferred stock to redemption value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(43)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(92)<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic', window );">Net loss attributable to common stockholders</a></td>
<td class="num">$ (17,756)<span></span>
</td>
<td class="num">$ (6,443)<span></span>
</td>
<td class="num">$ (31,228)<span></span>
</td>
<td class="num">$ (10,950)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_DenominatorAbstract', window );"><strong>Denominator:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Weighted average of common shares outstanding, basic and diluted</a></td>
<td class="nump">27,011,960<span></span>
</td>
<td class="nump">2,178,465<span></span>
</td>
<td class="nump">26,316,619<span></span>
</td>
<td class="nump">1,457,931<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Net loss per share attributable to common stockholders, basic and diluted</a></td>
<td class="num">$ (0.66)<span></span>
</td>
<td class="num">$ (2.96)<span></span>
</td>
<td class="num">$ (1.19)<span></span>
</td>
<td class="num">$ (7.51)<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
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<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Net Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.19)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.18)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Other Comprehensive Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br><br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 19<br><br><br><br> -Article 5<br><br><br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 04<br><br><br><br> -Paragraph 20<br><br><br><br> -Article 9<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
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<td><strong> Balance Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1377-109256<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment</td>
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<td><strong> Period Type:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Denominator [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983488415536">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Australia Research and Development Tax Incentive - Additional Information (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">45.00%<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">$ 458<span></span>
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<td class="nump">$ 47<span></span>
</td>
<td class="nump">$ 687<span></span>
</td>
<td class="nump">$ 73<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ForeignCurrencyTransactionGainLossUnrealized', window );">Unrealized foreign currency transaction gains (losses)</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="num">$ (38)<span></span>
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<td class="nump">64<span></span>
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<td class="text">&#160;<span></span>
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<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementGeographicalAxis=country_AU', window );">Australia [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLossCarryforwardsLineItems', window );"><strong>Operating Loss Carryforwards [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">45.00%<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxReceivable', window );">Tax incentive receivable</a></td>
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<td class="text">&#160;<span></span>
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<td class="nump">$ 1,040<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TaxCreditCarryforwardAxis=us-gaap_CapitalLossCarryforwardMember', window );">Capital Loss Carryforward [Member]</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLossCarryforwardsLineItems', window );"><strong>Operating Loss Carryforwards [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="num">$ (14)<span></span>
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<td class="nump">$ 22<span></span>
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<td class="num">$ (38)<span></span>
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<td class="nump">$ 64<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30690-110894<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30700-110894<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450222&amp;loc=d3e30840-110895<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.8)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 5<br><br><br><br> -Subparagraph c<br><br><br><br> -Article 7<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of research and development costs eligible to be refunded as part of tax incentive program.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of research and development costs to be reduced.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense reduction recorded related to a refundable tax incentive receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491653088">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Notes Payable<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureTextBlock', window );">Notes Payable</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>4. Notes Payable</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company has outstanding amounts due under a loan and security
 agreement with Oxford Finance LLC and Midcap Financial (the
 &#x201C;Credit Facility&#x201D;) entered into in March 2014. All
 promissory notes issued under the Credit Facility are
 collateralized by substantially all of the Company&#x2019;s personal
 property, other than intellectual property. There are no financial
 covenants associated with the debt facility; however, there are
 negative covenants restricting the Company&#x2019;s activities,
 including limitations on dispositions, mergers or acquisitions;
 encumbering or granting a security interest in the Company&#x2019;s
 intellectual property; incurring indebtedness or liens; paying
 dividends; making certain investments; and certain other business
 transactions. As of June&#xA0;30, 2015 and December&#xA0;31, 2014,
 notes payable consist of the following:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
 <tr>
 <td width="76%"></td>
 <td valign="bottom" width="7%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="7%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>June&#xA0;30,<br />
 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>December&#xA0;31,<br />
 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">7,500</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">7,500</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Less: current portion</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(2,820</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(1,381</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable, net of current portion</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">4,680</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">6,119</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Debt discount, net of accretion</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(56</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(79</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Accretion related to final payment</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">227</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">137</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable, net of discount, long term</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">4,851</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">6,177</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 As of June&#xA0;30, 2015, estimated future principal payments due
 are as follows:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0">
 <tr>
 <td width="89%"></td>
 <td valign="bottom" width="6%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom" nowrap="nowrap">
 <p style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt">
 <b>Years Ending December&#xA0;31,</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" colspan="2">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2015</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">1,381</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2016</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,936</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2017</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,183</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">7,500</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 During the three months ended June&#xA0;30, 2015 and 2014, the
 Company recognized $213 and $443, respectively, of interest expense
 related to the Credit Facility. During the six months ended
 June&#xA0;30, 2015 and 2014, the Company recognized $426 and $445,
 respectively, of interest expense related to the Credit Facility.
 The effective annual interest rate of the outstanding debt under
 the Credit Facility is approximately 14%.</p>


 </div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21475-112644<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19,20,22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureTextBlock</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>R29.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
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<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983502095824">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Notes Payable - Schedule of Estimated Future Principal Payments (Detail)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Jun. 30, 2015 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentsAbstract', window );"><strong>Debt Instruments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear', window );">2015</a></td>
<td class="nump">$ 1,381<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo', window );">2016</a></td>
<td class="nump">2,936<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree', window );">2017</a></td>
<td class="nump">3,183<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );">Total</a></td>
<td class="nump">$ 7,500<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentsAbstract</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.9-03.16)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-03.16)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 20, 22<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 470<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6802200&amp;loc=d3e1835-112601<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 3<br><br><br><br> -Subparagraph (SX 210.12-04.(a))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e24072-122690<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 470<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6802200&amp;loc=d3e1835-112601<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 3<br><br><br><br> -Subparagraph (SX 210.12-04.(a))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e24072-122690<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 3<br><br><br><br> -Subparagraph (SX 210.12-04.(a))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e24072-122690<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear</td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983488079776">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Notes Payable - Schedule of Notes Payable (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_EquityMethodInvestmentsAndCostMethodInvestmentsAbstract', window );"><strong>Equity Method Investments And Cost Method Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">Notes payable</a></td>
<td class="nump">$ 7,500<span></span>
</td>
<td class="nump">$ 7,500<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayableCurrent', window );">Less: current portion</a></td>
<td class="num">(2,820)<span></span>
</td>
<td class="num">(1,381)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_NotesPayableNetOfCurrent', window );">Notes payable, net of current portion</a></td>
<td class="nump">4,680<span></span>
</td>
<td class="nump">6,119<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscount', window );">Debt discount, net of accretion</a></td>
<td class="num">(56)<span></span>
</td>
<td class="num">(79)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid', window );">Accretion related to final payment</a></td>
<td class="nump">227<span></span>
</td>
<td class="nump">137<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermNotesPayable', window );">Notes payable, net of discount, long term</a></td>
<td class="nump">$ 4,851<span></span>
</td>
<td class="nump">$ 6,177<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentUnamortizedDiscount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 835<br><br><br><br> -SubTopic 30<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1A<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6451184&amp;loc=d3e28541-108399<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 835<br><br><br><br> -SubTopic 30<br><br><br><br> -Section 55<br><br><br><br> -Paragraph 8<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=34725769&amp;loc=d3e28878-108400<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentUnamortizedDiscount</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermNotesPayable</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.9-03.16)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-03.16)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 13, 16<br><br><br><br> -Article 9<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 19, 20, 22<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<td style="white-space:nowrap;">us-gaap_NotesPayable</td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NotesPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19,20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NotesPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_EquityMethodInvestmentsAndCostMethodInvestmentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity Method Investments And Cost Method Investments [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_EquityMethodInvestmentsAndCostMethodInvestmentsAbstract</td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_NotesPayableNetOfCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of total notes payable less the current portion of notes payable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_NotesPayableNetOfCurrent</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>zfgn_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983494897616">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Notes Payable - Additional Information (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityPeriodicPaymentInterest', window );">Interest expense on credit facility</a></td>
<td class="nump">$ 213<span></span>
</td>
<td class="nump">$ 443<span></span>
</td>
<td class="nump">$ 426<span></span>
</td>
<td class="nump">$ 445<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CreditFacilityAxis=zfgn_CreditFacilityMember', window );">Credit Facility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective annual interest rate</a></td>
<td class="nump">14.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">14.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.22(a)(1))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 835<br><br><br><br> -SubTopic 30<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6451184&amp;loc=d3e28551-108399<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateEffectivePercentage</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the required periodic payment applied to interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19(b),22(b))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityPeriodicPaymentInterest</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CreditFacilityAxis=zfgn_CreditFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CreditFacilityAxis=zfgn_CreditFacilityMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
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<td></td>
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<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491476640">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Additional Information (Detail) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jan. 28, 2015</div></th>
<th class="th"><div>Jan. 31, 2015</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Underwriting discounts, commissions and offering costs incurred</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 473<span></span>
</td>
<td class="nump">$ 1,418<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=zfgn_FollowOnOfferingMember', window );">Follow-on Offering [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Common stock issued</a></td>
<td class="nump">3,942,200<span></span>
</td>
<td class="nump">3,942,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssuedPricePerShare', window );">Common stock issued price per share</a></td>
<td class="nump">$ 35.00<span></span>
</td>
<td class="nump">$ 35.00<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_StockIssuedDuringPeriodSharesToUnderwritersForExerciseOfOverAllotmentOption', window );">Shares issued related to the exercise of over allotment option by underwriters</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">514,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from offering, net of commissions and underwriting discounts</a></td>
<td class="nump">$ 130,044<span></span>
</td>
<td class="nump">$ 130,044<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Underwriting discounts, commissions and offering costs incurred</a></td>
<td class="nump">$ 473<span></span>
</td>
<td class="nump">$ 473<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 15<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
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<td>duration</td>
</tr>
</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfCommonStock</td>
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<tr>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or per unit amount of equity securities issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.3-04)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29, 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of stock issued to underwriters for the exercise of the over allotment option.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_StockIssuedDuringPeriodSharesToUnderwritersForExerciseOfOverAllotmentOption</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983494754016">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Accrued Expenses<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PayablesAndAccrualsAbstract', window );"><strong>Payables and Accruals [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock', window );">Accrued Expenses</a></td>
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 &#xA0;</p>
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 <td></td>
 <td></td>
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 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>June&#xA0;30,<br />
 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>December&#xA0;31,<br />
 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Accrued research and development expenses</p>
 </td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 Accrued other</p>
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 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19(a),20,24)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491333984">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Awards - Additional Information (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">6 Months Ended</th>
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<tr>
<th class="th"><div>Jan. 01, 2015</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="nump">$ 28,525<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Stock-based compensation recognized weighted average period</a></td>
<td class="text">&#160;<span></span>
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<td class="text">3 years 6 months<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares', window );">Number of outstanding unvested shares held by nonemployees</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13,552<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember', window );">2014 Employee Stock Purchase Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Shares available for grant</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">262,136<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=zfgn_TwoThousandFourteenStockOptionMember', window );">2014 Stock Option and Incentive Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant', window );">Shares available for grant</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,799,099<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod', window );">Shares added to plan</a></td>
<td class="nump">915,166<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Unrecognized cost of unvested share-based compensation awards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (i)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (i)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (c)(1)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of non-vested options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=zfgn_NonemployeeServiceBasedOptionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=zfgn_NonemployeeServiceBasedOptionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=zfgn_TwoThousandAndFourteenEmployeeStockPurchasePlanMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=zfgn_TwoThousandFourteenStockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=zfgn_TwoThousandFourteenStockOptionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>

</TEXT>
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<DOCUMENT>
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<SEQUENCE>23
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484177984">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 83,573<span></span>
</td>
<td class="nump">$ 58,103<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">136,547<span></span>
</td>
<td class="nump">57,359<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxesReceivable', window );">Tax incentive receivable</a></td>
<td class="nump">367<span></span>
</td>
<td class="nump">391<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent', window );">Prepaid expenses and other current assets</a></td>
<td class="nump">1,143<span></span>
</td>
<td class="nump">1,345<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">221,630<span></span>
</td>
<td class="nump">117,198<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Property and equipment, net</a></td>
<td class="nump">215<span></span>
</td>
<td class="nump">79<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxesReceivableNoncurrent', window );">Tax incentive receivable</a></td>
<td class="nump">673<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">84<span></span>
</td>
<td class="nump">242<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">222,602<span></span>
</td>
<td class="nump">117,519<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">4,297<span></span>
</td>
<td class="nump">2,348<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued expenses</a></td>
<td class="nump">4,441<span></span>
</td>
<td class="nump">3,172<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayableCurrent', window );">Notes payable, current</a></td>
<td class="nump">2,820<span></span>
</td>
<td class="nump">1,381<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">11,558<span></span>
</td>
<td class="nump">6,901<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermNotesPayable', window );">Notes payable, net of discount, long-term</a></td>
<td class="nump">4,851<span></span>
</td>
<td class="nump">6,177<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">$ 16,409<span></span>
</td>
<td class="nump">$ 13,078<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and contingencies (Note 7)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Stockholders' equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockValue', window );">Preferred stock; $0.001 par value; 5,000,000 shares authorized at June 30, 2015 and December 31, 2014; no shares issued and outstanding at June 30, 2015 and December 31, 2014</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, $0.001 par value; 115,000,000 shares authorized at June 30, 2015 and December 31, 2014; 27,117,822 and 22,879,160 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively</a></td>
<td class="nump">$ 27<span></span>
</td>
<td class="nump">$ 23<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">342,839<span></span>
</td>
<td class="nump">209,838<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(136,613)<span></span>
</td>
<td class="num">(105,385)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(60)<span></span>
</td>
<td class="num">(35)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders' equity</a></td>
<td class="nump">206,193<span></span>
</td>
<td class="nump">104,441<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and stockholders' equity</a></td>
<td class="nump">$ 222,602<span></span>
</td>
<td class="nump">$ 117,519<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19(a))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 220<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e637-108580<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 220<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e681-108580<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 220<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14A<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669686-108580<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 31<br><br><br><br> -Article 5<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 04<br><br><br><br> -Article 3<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.30(a)(1))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 31<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.18)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 12<br><br><br><br> -Article 7<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.9)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6801-107765<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of debt securities categorized neither as held-to-maturity nor trading.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 25<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51813488&amp;loc=d3e22054-111558<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49167202&amp;loc=d3e26610-111562<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (aa)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (b)-(g)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62557-112803<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3044-108585<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash Equivalents<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.1)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-03.(a),19)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 450<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=25496072&amp;loc=d3e14326-108349<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.9-03.17)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.25)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingencies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-03.5(c))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.3(a)(4))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 210<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.9-03.10)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesReceivableNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.17)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 5<br><br><br><br> -Subparagraph c<br><br><br><br> -Article 7<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 8<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesReceivableNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19-26)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.32)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 25<br><br><br><br> -Article 7<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.21)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermNotesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermNotesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NotesPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.19,20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NotesPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.17)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.3-04)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.28)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 8<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidExpenseAndOtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.13)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 360<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 13<br><br><br><br> -Subparagraph a<br><br><br><br> -Article 5<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 8<br><br><br><br> -Article 7<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.31(a)(3))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 04<br><br><br><br> -Article 3<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 310<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SAB TOPIC 4.E)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29-31)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 4<br><br><br><br> -Section E<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983732271984">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Nature of the Business and Basis of Presentation<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock', window );">Nature of the Business and Basis of Presentation</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>1. Nature of the Business and Basis of Presentation</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Zafgen, Inc. (the &#x201C;Company&#x201D;) was incorporated on
 November&#xA0;22, 2005 under the laws of the State of Delaware. The
 Company is a biopharmaceutical company dedicated to significantly
 improving the health and well-being of patients affected by obesity
 and complex metabolic disorders. Zafgen is focused on developing
 novel therapeutics that treat the underlying biological mechanisms
 through the Methionine Aminopeptidase 2 (&#x201C;MetAP2&#x201D;)
 pathway. Beloranib, the Company&#x2019;s lead product candidate, is
 a novel, first-in-class, twice-weekly subcutaneous injection being
 developed for the treatment of multiple indications, including
 severe obesity in two rare diseases, Prader-Willi syndrome and
 obesity caused by hypothalamic injury, including
 craniopharyngioma-associated obesity; and severe obesity in the
 general population. Zafgen is also developing ZGN-839, a
 liver-targeted MetAP2 inhibitor, for the treatment of nonalcoholic
 steatohepatitis (&#x201C;NASH&#x201D;) and abdominal obesity, as well
 as other second-generation MetAP2 inhibitors. Since its inception,
 the Company has devoted substantially all of its efforts to
 research and development, recruiting management, acquiring
 operating assets and raising capital.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company is subject to risks common to companies in the
 biotechnology industry including, but not limited to, new
 technological innovations, protection of proprietary technology,
 dependence on key personnel, compliance with government regulations
 and the need to obtain additional financing. Product candidates
 currently under development will require significant additional
 research and development efforts, including extensive pre-clinical
 and clinical testing and regulatory approval, prior to
 commercialization. These efforts require significant amounts of
 additional capital, adequate personnel infrastructure, and
 extensive compliance-reporting capabilities.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company&#x2019;s product candidates are all in the development
 stage. There can be no assurance that the Company&#x2019;s research
 and development will be successfully completed, that&#xA0;adequate
 protection for the Company&#x2019;s intellectual property will be
 obtained, that any products developed&#xA0;will obtain necessary
 government regulatory approval or that any approved products will
 be&#xA0;commercially viable. Even if the Company&#x2019;s product
 development efforts are successful, it is uncertain when, if ever,
 the Company will generate significant revenue from product sales.
 The Company operates in an environment of rapid change in
 technology and&#xA0;substantial competition from pharmaceutical and
 biotechnology companies. In addition, the&#xA0;Company is dependent
 upon the services of its employees and consultants.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The consolidated financial statements include the accounts of the
 Company and its wholly owned subsidiaries Zafgen Securities
 Corporation, Zafgen Australia Pty Limited, and Zafgen Animal
 Health, LLC. All significant intercompany balances and transactions
 have been eliminated.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 On June&#xA0;24, 2014, the Company completed an initial public
 offering (&#x201C;IPO&#x201D;) of its common stock, which resulted in
 the sale of 6,900,000 shares at a price of $16.00 per share. The
 Company received net proceeds from the IPO of approximately
 $102,672 based upon the price of $16.00 per share and after
 deducting underwriting discounts and commissions paid by the
 Company. The Company also incurred offering costs of $2,508 related
 to the IPO.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 On January&#xA0;28, 2015, the Company completed a follow-on
 offering of its common stock, which resulted in the sale of
 3,942,200 shares at a price of $35.00 per share. The Company
 received net proceeds from the follow-on offering of $130,044 based
 upon the price of $35.00 per share after deducting underwriting
 discounts and commissions. The Company also incurred offering costs
 of $473 related to the follow-on offering.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Unaudited Interim Financial Information</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The condensed consolidated balance sheet at December&#xA0;31, 2014
 was derived from audited financial statements, but does not include
 all disclosures required by GAAP. The accompanying unaudited
 condensed consolidated financial statements as of June&#xA0;30,
 2015 and for the three and six months ended June&#xA0;30, 2015 and
 2014, have been prepared by the Company, pursuant to the rules and
 regulations of the SEC for interim financial statements. Certain
 information and footnote disclosures normally included in financial
 statements prepared in accordance with GAAP have been condensed or
 omitted pursuant to such rules and regulations. However, the
 Company believes that the disclosures are adequate to make the
 information presented not misleading. These condensed consolidated
 financial statements should be read in conjunction with the
 Company&#x2019;s audited consolidated financial statements and the
 notes thereto for the year ended December&#xA0;31, 2014, included
 in the Company&#x2019;s Annual Report on Form 10-K for the year
 ended December&#xA0;31, 2014, on file with the SEC. In the opinion
 of management, all adjustments, consisting only of normal recurring
 adjustments necessary for a fair presentation of the
 Company&#x2019;s condensed consolidated financial position as of
 June&#xA0;30, 2015 and condensed consolidated results of operations
 and cash flows for the three and six months ended June&#xA0;30,
 2015 and 2014 have been made. The results of operations for the
 three and six months ended June&#xA0;30, 2015 are not necessarily
 indicative of the results of operations that may be expected for
 the year ending December&#xA0;31, 2015.</p>


 </div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the business description and basis of presentation concepts.  Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity.  Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983500643616">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Commitments and Contingencies - Schedule of Future Minimum Lease Payments for Operating Leases (Detail)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Jun. 30, 2015 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingenciesDisclosureAbstract', window );"><strong>Commitments and Contingencies Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear', window );">2015</a></td>
<td class="nump">$ 163<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears', window );">2016</a></td>
<td class="nump">335<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears', window );">2017</a></td>
<td class="nump">199<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDue', window );">Total</a></td>
<td class="nump">$ 697<span></span>
</td>
</tr>
</table>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 55<br><br><br><br> -Paragraph 40<br><br><br><br> -Subparagraph (Note 3)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6584154&amp;loc=d3e38371-112697<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6453985&amp;loc=d3e41502-112717<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6453985&amp;loc=d3e41502-112717<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 55<br><br><br><br> -Paragraph 40<br><br><br><br> -Subparagraph (Note 3)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6584154&amp;loc=d3e38371-112697<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 55<br><br><br><br> -Paragraph 40<br><br><br><br> -Subparagraph (Note 3)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6584154&amp;loc=d3e38371-112697<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6453985&amp;loc=d3e41502-112717<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983487224816">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Summary of Cash Equivalents and Marketable Securities (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">$ 63,133<span></span>
</td>
<td class="nump">$ 42,509<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">136,547<span></span>
</td>
<td class="nump">57,359<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total cash equivalents and marketable securities</a></td>
<td class="nump">199,680<span></span>
</td>
<td class="nump">99,868<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_MoneyMarketFundsMember', window );">Money Market Funds [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">61,133<span></span>
</td>
<td class="nump">14,742<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=zfgn_UsGovernmentSecuritiesMember', window );">U.S. Government Securities [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">27,767<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">49,239<span></span>
</td>
<td class="nump">34,191<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate Bonds [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">60,831<span></span>
</td>
<td class="nump">22,168<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember', window );">Commercial Paper [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">2,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">26,477<span></span>
</td>
<td class="nump">1,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member', window );">Quoted Prices in Active Markets, (Level 1) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">61,133<span></span>
</td>
<td class="nump">14,742<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total cash equivalents and marketable securities</a></td>
<td class="nump">61,133<span></span>
</td>
<td class="nump">14,742<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member', window );">Quoted Prices in Active Markets, (Level 1) [Member] | Money Market Funds [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">61,133<span></span>
</td>
<td class="nump">14,742<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">2,000<span></span>
</td>
<td class="nump">27,767<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">136,547<span></span>
</td>
<td class="nump">57,359<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total cash equivalents and marketable securities</a></td>
<td class="nump">138,547<span></span>
</td>
<td class="nump">85,126<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Securities [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">27,767<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">49,239<span></span>
</td>
<td class="nump">34,191<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | Corporate Bonds [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">60,831<span></span>
</td>
<td class="nump">22,168<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | Commercial Paper [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_SummaryOfSignificantPoliciesLineItems', window );"><strong>Summary Of Significant Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">2,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Marketable securities</a></td>
<td class="nump">$ 26,477<span></span>
</td>
<td class="nump">$ 1,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 820<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19207-110258<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsFairValueDisclosure</td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of debt securities categorized neither as held-to-maturity nor trading.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 25<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51813488&amp;loc=d3e22054-111558<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49167202&amp;loc=d3e26610-111562<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (aa)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (b)-(g)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62557-112803<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash Equivalents<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsFairValueDisclosure</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Summary Of Significant Policies [Line Items]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member</td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983497107632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Retirement Plan - Additional Information (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CompensationAndRetirementDisclosureAbstract', window );"><strong>Compensation and Retirement Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent', window );">Percentage of employer's contribution on employee's base salary</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedContributionPlanCostRecognized', window );">Contribution expense</a></td>
<td class="nump">$ 34<span></span>
</td>
<td class="nump">$ 13<span></span>
</td>
<td class="nump">$ 79<span></span>
</td>
<td class="nump">$ 26<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CompensationAndRetirementDisclosureAbstract</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of the cost recognized during the period for defined contribution plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 70<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49170846&amp;loc=d3e28014-114942<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td>duration</td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484395056">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Summary of Marketable Securities (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Schedule of Available-for-sale Securities [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Amortized Cost</a></td>
<td class="nump">$ 136,607<span></span>
</td>
<td class="nump">$ 57,394<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross Unrealized Gains</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross Unrealized Losses</a></td>
<td class="num">(60)<span></span>
</td>
<td class="num">(35)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">136,547<span></span>
</td>
<td class="nump">57,359<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=zfgn_UsGovernmentSecuritiesDueWithinOneYearMember', window );">U.S. Government Securities (Due within 1 Year) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Schedule of Available-for-sale Securities [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Amortized Cost</a></td>
<td class="nump">49,240<span></span>
</td>
<td class="nump">34,200<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross Unrealized Gains</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross Unrealized Losses</a></td>
<td class="num">(1)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">49,239<span></span>
</td>
<td class="nump">34,191<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=zfgn_CorporateDebtSecuritiesDueWithinOneYearMember', window );">Corporate Bonds (Due within 1 Year) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Schedule of Available-for-sale Securities [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Amortized Cost</a></td>
<td class="nump">57,396<span></span>
</td>
<td class="nump">18,716<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross Unrealized Gains</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross Unrealized Losses</a></td>
<td class="num">(48)<span></span>
</td>
<td class="num">(18)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">57,348<span></span>
</td>
<td class="nump">18,698<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=zfgn_CorporateDebtSecuritiesDueAfterOneYearThroughTwoYearsMember', window );">Corporate Bonds (Due After 1 Year Through 2 Years) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Schedule of Available-for-sale Securities [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Amortized Cost</a></td>
<td class="nump">3,487<span></span>
</td>
<td class="nump">3,478<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross Unrealized Gains</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross Unrealized Losses</a></td>
<td class="num">(4)<span></span>
</td>
<td class="num">(8)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">3,483<span></span>
</td>
<td class="nump">3,470<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=zfgn_CommercialPaperNotIncludedWithCashAndCashEquivalentsDueWithinOneYearMember', window );">Commercial Paper (Due within 1 Year) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Schedule of Available-for-sale Securities [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Amortized Cost</a></td>
<td class="nump">26,484<span></span>
</td>
<td class="nump">1,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross Unrealized Gains</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross Unrealized Losses</a></td>
<td class="num">(7)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">$ 26,477<span></span>
</td>
<td class="nump">$ 1,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (c)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (aa)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.2)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of debt securities categorized neither as held-to-maturity nor trading.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 25<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51813488&amp;loc=d3e22054-111558<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49167202&amp;loc=d3e26610-111562<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (aa)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (b)-(g)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62557-112803<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983500439360">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
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<td class="text"><div>
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 <b>2. Summary of Significant Accounting Policies</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Use of Estimates</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The preparation of financial statements in conformity with GAAP
 requires management to make estimates, assumptions and judgments
 that affect the reported amounts of assets and liabilities, the
 disclosure of contingent assets and liabilities at the date of the
 consolidated financial statements, and the reported amounts of
 expenses during the reporting periods. Significant estimates,
 assumptions and judgments reflected in these condensed consolidated
 financial statements include, but are not limited to, the accrual
 of research and development expenses, the valuation of common stock
 prior to the IPO and the valuation of stock-based awards. Estimates
 are periodically reviewed in light of changes in circumstances,
 facts and experience. Actual results could differ from the
 Company&#x2019;s estimates.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Fair Value Measurements</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following tables present information about the Company&#x2019;s
 financial assets that have been measured at fair value at
 June&#xA0;30, 2015 and December&#xA0;31, 2014, and indicate the
 fair value of the hierarchy of the valuation inputs utilized to
 determine such fair value. In general, fair values determined by
 Level 1 inputs utilize quoted prices (unadjusted) in active markets
 for identical assets or liabilities. Fair value determined by Level
 2 inputs utilize observable inputs other than Level 1 prices, such
 as quoted prices, for similar assets or liabilities, quoted market
 prices in markets that are not active or other inputs that are
 observable or can be corroborated by observable market data for
 substantially the full term of the related assets or liabilities.
 Fair values determined by Level 3 inputs are unobservable data
 points for the asset or liability, and includes situations where
 there is little, if any, market activity for the asset or
 liability.</p>
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 The following tables summarize the Company&#x2019;s cash equivalents
 and marketable securities as of June&#xA0;30, 2015 and
 December&#xA0;31, 2014:</p>
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 &#xA0;</p>
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 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
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 <td valign="bottom">&#xA0;</td>
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 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
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 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
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 Inputs<br />
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 Unobservable<br />
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 <td valign="bottom"></td>
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 <td valign="bottom"></td>
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 Money market funds</p>
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 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
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 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
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 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">199,680</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">138,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 8%; -webkit-text-stroke-width: 0px">
 During the three and six months ended June&#xA0;30, 2015, there
 were no transfers between Level 1 and Level 2 financial assets. The
 carrying amounts reflected in the condensed consolidated balance
 sheets for tax incentive receivable, accounts payable, and accrued
 expenses approximate fair value due to their short-term maturities.
 The carrying value of the Company&#x2019;s outstanding notes payable
 approximates fair value (a Level 2 fair value measurement),
 reflecting discount rates currently available to the Company.</p>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Other<br />
 Observable<br />
 Inputs<br />
 (Level&#xA0;2)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Unobservable<br />
 Inputs<br />
 (Level&#xA0;3)</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Cash equivalents:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Money market funds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total cash equivalents</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">42,509</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Marketable securities:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">99,868</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">85,126</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Marketable Securities</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following table summarizes the Company&#x2019;s marketable
 securities as of June&#xA0;30, 2015 and December&#xA0;31, 2014:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,396</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(48</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,348</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,487</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(4</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,483</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,240</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(1</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,484</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(7</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,607</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(60</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="64%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,200</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(9</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,716</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(18</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,698</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,478</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(8</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,470</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,394</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(35</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Income (Loss) Per Share</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Upon the closing of the Company&#x2019;s IPO in June 2014, all of
 the Company&#x2019;s outstanding redeemable convertible preferred
 shares were converted into shares of common stock. Prior to this
 conversion, the Company followed the two-class method when
 computing net income (loss) per share as the Company had issued
 shares that meet the definition of participating securities. The
 two-class method determines net income (loss) per share for each
 class of common and participating securities according to dividends
 declared or accumulated and participation rights in undistributed
 earnings. The two-class method requires income available to common
 stockholders for the period to be allocated between common and
 participating securities based upon their respective rights to
 receive dividends as if all income for the period had been
 distributed. The Company&#x2019;s redeemable convertible preferred
 shares contractually entitled the holders of such shares to
 participate in dividends, but did not contractually require the
 holders of such shares to participate in losses of the Company.
 Accordingly, the two-class method did not apply for periods in
 which the Company reported a net loss or a net loss attributable to
 common stockholders resulting from dividends or accretion related
 to its redeemable convertible preferred shares.</p>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Basic net income (loss) per share attributable to common
 stockholders is computed by dividing the net income (loss)
 attributable to common stockholders by the weighted average number
 of common shares outstanding for the period. Diluted net income
 (loss) per share attributable to common stockholders is computed by
 dividing the diluted net income (loss) attributable to common
 stockholders by the weighted average number of common shares,
 including potential dilutive common shares assuming the dilutive
 effect of outstanding stock options and unvested restricted common
 shares, as determined using the treasury stock method. For periods
 in which the Company has reported net losses, diluted net loss per
 common share attributable to common stockholders is the same as
 basic net loss per common share attributable to common
 stockholders, since dilutive common shares are not assumed to have
 been issued if their effect is antidilutive.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company reported a net loss attributable to common stockholders
 for the three and six months ended June&#xA0;30, 2015 and 2014.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="69%"></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;three&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;six&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Basic and diluted net loss per share attributable to common
 stockholders:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Numerator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Net loss</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,400</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,858</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Accretion of redeemable convertible preferred stock to redemption
 value</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(43</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(92</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 9em; TEXT-INDENT: -1em">
 Net loss attributable to common stockholders</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,443</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,950</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Denominator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Weighted average of common shares outstanding, basic and
 diluted</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,011,960</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,178,465</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,316,619</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,457,931</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
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 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom">$</td>
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 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
 loss per share for the three and six months ended June&#xA0;30,
 2015 and 2014, because they had an anti-dilutive impact:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
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 <td></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
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 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
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 Options to purchase common stock</p>
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 Unvested restricted stock</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <b>Recently Issued and Adopted Accounting Pronouncements</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 In August 2014, the Financial Accounting Standards Board issued
 Accounting Standards Update No.&#xA0;2014-15, Presentation of
 Financial Statements &#x2014; Going Concern (Subtopic 205-40). The
 new guidance addresses management&#x2019;s responsibility to
 evaluate whether there is substantial doubt about an entity&#x2019;s
 ability to continue as a going concern and to provide related
 footnote disclosures. Management&#x2019;s evaluation should be based
 on relevant conditions and events that are known and reasonably
 knowable at the date that the financial statements are issued. The
 standard will be effective for the first interim period within
 annual reporting periods beginning after December&#xA0;15, 2016.
 Early adoption is permitted. The Company is evaluating the effect
 that this guidance will have on its condensed consolidated
 financial statements.</p>


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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for all significant accounting policies of the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 6<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18861-107790<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18780-107790<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18726-107790<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18743-107790<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 5<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18854-107790<br><br><br><br></p></div>
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<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares<br></strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
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<td class="text">&#160;<span></span>
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<td class="nump">5,000,000<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesIssued', window );">Preferred stock, shares issued</a></td>
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<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value</a></td>
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<td class="nump">27,117,822<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding</a></td>
<td class="nump">27,117,822<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.29)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.3-04)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.28)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.28)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.28)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.28)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementOfFinancialPositionAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementOfFinancialPositionAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:stringItemType</td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983496995024">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Accrued Expenses (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
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<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PayablesAndAccrualsAbstract', window );"><strong>Payables and Accruals [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock', window );">Schedule of Accrued Expenses</a></td>
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 &#xA0;</p>
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 <td></td>
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 <td></td>
 <td></td>
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 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>June&#xA0;30,<br />
 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>December&#xA0;31,<br />
 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Accrued research and development expenses</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">2,542</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
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 Accrued payroll and related expenses</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,256</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,239</td>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Accrued professional fees</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom" align="right">519</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the components of accrued liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Document and Entity Information - shares<br></strong></div></th>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>If the value is true, then the document is an amendment to previously-filed/accepted document.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation 12B<br><br><br><br> -Number 240<br><br><br><br> -Section 12b<br><br><br><br> -Subsection 1<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation 12B<br><br><br><br> -Number 240<br><br><br><br> -Section 12b<br><br><br><br> -Subsection 1<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Document And Entity Information [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484185344">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Notes Payable (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_ScheduleOfNotesPayableTableTextBlock', window );">Schedule of Notes Payable</a></td>
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 As of June&#xA0;30, 2015 and December&#xA0;31, 2014, notes payable
 consist of the following:</p>
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 &#xA0;</p>
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 <td></td>
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 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
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 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>June&#xA0;30,<br />
 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>December&#xA0;31,<br />
 2014</b></td>
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 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Less: current portion</p>
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 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable, net of current portion</p>
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 <td valign="bottom" align="right">4,680</td>
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 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Debt discount, net of accretion</p>
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 Accretion related to final payment</p>
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 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Notes payable, net of discount, long term</p>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock', window );">Schedule of Estimated Future Principal Payments</a></td>
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 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 As of June&#xA0;30, 2015, estimated future principal payments due
 are as follows:</p>
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 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0">
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 <p style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt">
 <b>Years Ending December&#xA0;31,</b></p>
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 2015</p>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
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 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2016</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,936</td>
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 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2017</p>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top"></td>
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 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
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 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 470<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6802200&amp;loc=d3e1835-112601<br><br><br><br></p></div>
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<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of notes payable. Includes, but is not limited to, current and long-term portions.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484402464">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpensesAbstract', window );"><strong>Operating expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">12,526<span></span>
</td>
<td class="nump">4,695<span></span>
</td>
<td class="nump">22,741<span></span>
</td>
<td class="nump">7,970<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GeneralAndAdministrativeExpense', window );">General and administrative</a></td>
<td class="nump">5,084<span></span>
</td>
<td class="nump">1,291<span></span>
</td>
<td class="nump">8,109<span></span>
</td>
<td class="nump">2,537<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpenses', window );">Total operating expenses</a></td>
<td class="nump">17,610<span></span>
</td>
<td class="nump">5,986<span></span>
</td>
<td class="nump">30,850<span></span>
</td>
<td class="nump">10,507<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Loss from operations</a></td>
<td class="num">(17,610)<span></span>
</td>
<td class="num">(5,986)<span></span>
</td>
<td class="num">(30,850)<span></span>
</td>
<td class="num">(10,507)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherIncomeAndExpensesAbstract', window );"><strong>Other income (expense):</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentIncomeNet', window );">Interest income</a></td>
<td class="nump">63<span></span>
</td>
<td class="nump">1<span></span>
</td>
<td class="nump">102<span></span>
</td>
<td class="nump">1<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="num">(213)<span></span>
</td>
<td class="num">(443)<span></span>
</td>
<td class="num">(426)<span></span>
</td>
<td class="num">(445)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax', window );">Foreign currency transaction gains (losses), net</a></td>
<td class="nump">4<span></span>
</td>
<td class="nump">28<span></span>
</td>
<td class="num">(54)<span></span>
</td>
<td class="nump">93<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="num">(146)<span></span>
</td>
<td class="num">(414)<span></span>
</td>
<td class="num">(378)<span></span>
</td>
<td class="num">(351)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">(17,756)<span></span>
</td>
<td class="num">(6,400)<span></span>
</td>
<td class="num">(31,228)<span></span>
</td>
<td class="num">(10,858)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment', window );">Accretion of redeemable convertible preferred stock to redemption value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(43)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(92)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic', window );">Net loss attributable to common stockholders</a></td>
<td class="num">$ (17,756)<span></span>
</td>
<td class="num">$ (6,443)<span></span>
</td>
<td class="num">$ (31,228)<span></span>
</td>
<td class="num">$ (10,950)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Net loss per share attributable to common stockholders, basic and diluted</a></td>
<td class="num">$ (0.66)<span></span>
</td>
<td class="num">$ (2.96)<span></span>
</td>
<td class="num">$ (1.19)<span></span>
</td>
<td class="num">$ (7.51)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Weighted average common shares outstanding, basic and diluted</a></td>
<td class="nump">27,011,960<span></span>
</td>
<td class="nump">2,178,465<span></span>
</td>
<td class="nump">26,316,619<span></span>
</td>
<td class="nump">1,457,931<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxAbstract', window );"><strong>Comprehensive loss:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (17,756)<span></span>
</td>
<td class="num">$ (6,400)<span></span>
</td>
<td class="num">$ (31,228)<span></span>
</td>
<td class="num">$ (10,858)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract', window );"><strong>Other comprehensive loss:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent', window );">Unrealized loss on marketable securities</a></td>
<td class="num">(21)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(25)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent', window );">Total other comprehensive loss</a></td>
<td class="num">(21)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(25)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Total comprehensive loss</a></td>
<td class="num">$ (17,777)<span></span>
</td>
<td class="num">$ (6,400)<span></span>
</td>
<td class="num">$ (31,253)<span></span>
</td>
<td class="num">$ (10,858)<span></span>
</td>
</tr>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Other Comprehensive Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Comprehensive Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831223<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 220<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 5<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e557-108580<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Net Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxAbstract</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450222&amp;loc=d3e30840-110895<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30700-110894<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30690-110894<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ForeignCurrencyTransactionGainLossBeforeTax</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.4)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 835<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.9-04.9)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentIncomeNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.8)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.7(a),(b))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.9)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentIncomeNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Net Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.19)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.18)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Other Comprehensive Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br><br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 19<br><br><br><br> -Article 5<br><br><br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 04<br><br><br><br> -Paragraph 20<br><br><br><br> -Article 9<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1377-109256<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.7)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpensesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 20<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51664549&amp;loc=SL4569643-111683<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1A<br><br><br><br> -Subparagraph (c)(3)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=18733093&amp;loc=SL4573702-111684<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 19<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51664549&amp;loc=SL4569616-111683<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of other comprehensive income (loss) attributable to parent entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1A<br><br><br><br> -Subparagraph (c)(3)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=18733093&amp;loc=SL4573702-111684<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 19<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51664549&amp;loc=SL4569616-111683<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 810<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 20<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51664549&amp;loc=SL4569643-111683<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherIncomeAndExpensesAbstract</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 730<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 985<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.1)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983732257264">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
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<td class="text">&#160;<span></span>
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 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>7. Commitments and Contingencies</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Leases</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company has a lease for office space in Boston, Massachusetts,
 effective as of July&#xA0;28, 2014, with a term expiring
 July&#xA0;31, 2017 and an option to extend the lease for three
 additional years. In March 2015, the Company entered into an
 operating lease for additional office space in Boston,
 Massachusetts, effective as of April&#xA0;15, 2015, with a term
 expiring on July&#xA0;31, 2017, and two options to extend the lease
 for three additional years each.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Future minimum lease payments for its operating lease as of
 June&#xA0;30, 2015 are as follows:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="68%" align="center" border="0">
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 <td></td>
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 <td></td>
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 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom" nowrap="nowrap">
 <p style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; BORDER-BOTTOM: rgb(0,0,0) 1pt solid; WIDTH: 95.55pt">
 <b>Years Ending December&#xA0;31,</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" colspan="2">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
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 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2015</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
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 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2016</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">335</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 2017</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
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 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
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 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">697</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
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 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 During the three months ended June&#xA0;30, 2015 and 2014, the
 Company recognized $79 and $27, respectively, of rental expense
 related to office space. During the six months ended June&#xA0;30,
 2015 and 2014, the Company recognized $137 and $52, respectively,
 of rental expense related to office space.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Intellectual Property Licenses</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company has acquired exclusive rights to develop patented
 compounds and related know-how for beloranib under licensing
 agreements with two third parties in the course of its research and
 development activities. The licensing rights obligate the Company
 to make payments to the licensors for license fees, milestones,
 license maintenance fees and royalties. The Company is also
 responsible for patent prosecution costs.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 As of June&#xA0;30, 2015, the Company is obligated to make
 milestone payments of up to $12,250 upon reaching certain
 pre-commercialization milestones, such as clinical trials and
 government approvals, and up to $12,500 upon reaching certain
 product commercialization milestones. Under one of the license
 agreements, the Company is also obligated to pay up to $1,250 with
 respect to each subsequent licensed product, if any, that is a new
 chemical entity. In addition, the Company will owe single-digit
 royalties on sales of commercial products developed using these
 licensed technologies, if any. The Company is also obligated to pay
 to the licensors a percentage of fees received if and when the
 Company sublicenses the technology. As of June&#xA0;30, 2015, the
 Company has not yet developed a commercial product using the
 licensed technologies and it has not entered into any sublicense
 agreements for the technologies.</p>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Indemnification Agreements</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 In the ordinary course of business, the Company may provide
 indemnification of varying scope and terms to vendors, lessors,
 business partners, and other parties with respect to certain
 matters including, but not limited to, losses arising out of breach
 of such agreements or from intellectual property infringement
 claims made by third parties. In addition, the Company has entered
 into indemnification agreements with members of its board of
 directors that will require the Company, among other things, to
 indemnify them against certain liabilities that may arise by reason
 of their status or service as directors or officers. The maximum
 potential amount of future payments the Company could be required
 to make under these indemnification agreements is, in many cases,
 unlimited. To date, the Company has not incurred any material costs
 as a result of such indemnifications. The Company does not believe
 that the outcome of any claims under indemnification arrangements
 will have a material effect on its financial position, results of
 operations or cash flows, and it has not accrued any liabilities
 related to such obligations in its condensed consolidated financial
 statements as of June&#xA0;30, 2015.</p>


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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491459664">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Awards<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock', window );">Stock-Based Awards</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>6. Stock-Based Awards</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company grants equity awards under its 2014 Stock Option and
 Incentive Plan and is authorized to issue common stock under its
 2014 Employee Stock Purchase Plan. The Company also has outstanding
 stock-based awards under its Amended and Restated 2006 Stock Option
 Plan but is no longer granting awards under this plan. As of
 June&#xA0;30, 2015, 1,799,099 shares are available for grant under
 the 2014 Stock Option and Incentive Plan, including 915,166 shares
 automatically added to the 2014 Stock Option and Incentive Plan on
 January&#xA0;1, 2015 as a result of a provision in the plan, and
 262,136 shares are available for issuance to participating
 employees under the 2014 Employee Stock Purchase Plan. The Company
 recorded stock-based compensation expense related to stock options
 and restricted common stock in the following expense categories of
 its condensed consolidated statements of operations:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="74%"></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
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 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"><b>Three&#xA0;Months&#xA0;Ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"><b>Six&#xA0;Months&#xA0;Ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Research and development</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">738</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">99</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">1,142</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 General and administrative</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,201</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">169</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,854</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">276</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">1,939</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">268</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">2,996</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">444</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
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 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 13%; -webkit-text-stroke-width: 0px">
 As of June&#xA0;30, 2015, the Company had an aggregate of $28,525
 of unrecognized stock-based compensation cost, which is expected to
 be recognized over a weighted average period of 3.5 years. As of
 June&#xA0;30, 2015, there were outstanding unvested service-based
 stock options held by nonemployees for the purchase of 13,552
 shares of common stock.</p>
 <p>&#xA0;</p>


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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 40<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6418621&amp;loc=d3e17540-113929<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 50<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51659978&amp;loc=d3e25284-112666<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5047-113901<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5444-113901<br><br><br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 14<br><br><br><br></p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983500411968">
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<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Additional Information (Detail)<br></strong></div></th>
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<div>Jun. 30, 2015 </div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 820<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (bb)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19207-110258<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 820<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (bb)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19207-110258<br><br><br><br></p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491649376">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Awards (Tables)<br></strong></div></th>
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 Research and development</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (h)(1)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5047-113901<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SAB TOPIC 14.F)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 14<br><br><br><br> -Section F<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983486555456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Nature of the Business and Basis of Presentation (Policies)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BasisOfAccountingPolicyPolicyTextBlock', window );">Unaudited Interim Financial Information</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Unaudited Interim Financial Information</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The condensed consolidated balance sheet at December&#xA0;31, 2014
 was derived from audited financial statements, but does not include
 all disclosures required by GAAP. The accompanying unaudited
 condensed consolidated financial statements as of June&#xA0;30,
 2015 and for the three and six months ended June&#xA0;30, 2015 and
 2014, have been prepared by the Company, pursuant to the rules and
 regulations of the SEC for interim financial statements. Certain
 information and footnote disclosures normally included in financial
 statements prepared in accordance with GAAP have been condensed or
 omitted pursuant to such rules and regulations. However, the
 Company believes that the disclosures are adequate to make the
 information presented not misleading. These condensed consolidated
 financial statements should be read in conjunction with the
 Company&#x2019;s audited consolidated financial statements and the
 notes thereto for the year ended December&#xA0;31, 2014, included
 in the Company&#x2019;s Annual Report on Form 10-K for the year
 ended December&#xA0;31, 2014, on file with the SEC. In the opinion
 of management, all adjustments, consisting only of normal recurring
 adjustments necessary for a fair presentation of the
 Company&#x2019;s condensed consolidated financial position as of
 June&#xA0;30, 2015 and condensed consolidated results of operations
 and cash flows for the three and six months ended June&#xA0;30,
 2015 and 2014 have been made. The results of operations for the
 three and six months ended June&#xA0;30, 2015 are not necessarily
 indicative of the results of operations that may be expected for
 the year ending December&#xA0;31, 2015.</p>


 </div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UseOfEstimates', window );">Use of Estimates</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Use of Estimates</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The preparation of financial statements in conformity with GAAP
 requires management to make estimates, assumptions and judgments
 that affect the reported amounts of assets and liabilities, the
 disclosure of contingent assets and liabilities at the date of the
 consolidated financial statements, and the reported amounts of
 expenses during the reporting periods. Significant estimates,
 assumptions and judgments reflected in these condensed consolidated
 financial statements include, but are not limited to, the accrual
 of research and development expenses, the valuation of common stock
 prior to the IPO and the valuation of stock-based awards. Estimates
 are periodically reviewed in light of changes in circumstances,
 facts and experience. Actual results could differ from the
 Company&#x2019;s estimates.</p>


 </div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueMeasurementPolicyPolicyTextBlock', window );">Fair Value Measurements</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Fair Value Measurements</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following tables present information about the Company&#x2019;s
 financial assets that have been measured at fair value at
 June&#xA0;30, 2015 and December&#xA0;31, 2014, and indicate the
 fair value of the hierarchy of the valuation inputs utilized to
 determine such fair value. In general, fair values determined by
 Level 1 inputs utilize quoted prices (unadjusted) in active markets
 for identical assets or liabilities. Fair value determined by Level
 2 inputs utilize observable inputs other than Level 1 prices, such
 as quoted prices, for similar assets or liabilities, quoted market
 prices in markets that are not active or other inputs that are
 observable or can be corroborated by observable market data for
 substantially the full term of the related assets or liabilities.
 Fair values determined by Level 3 inputs are unobservable data
 points for the asset or liability, and includes situations where
 there is little, if any, market activity for the asset or
 liability.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following tables summarize the Company&#x2019;s cash equivalents
 and marketable securities as of June&#xA0;30, 2015 and
 December&#xA0;31, 2014:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="60%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Other<br />
 Observable<br />
 Inputs<br />
 (Level&#xA0;2)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Unobservable<br />
 Inputs<br />
 (Level&#xA0;3)</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Cash equivalents:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Money market funds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total cash equivalents</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">63,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Marketable securities:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">199,680</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">138,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 8%; -webkit-text-stroke-width: 0px">
 During the three and six months ended June&#xA0;30, 2015, there
 were no transfers between Level 1 and Level 2 financial assets. The
 carrying amounts reflected in the condensed consolidated balance
 sheets for tax incentive receivable, accounts payable, and accrued
 expenses approximate fair value due to their short-term maturities.
 The carrying value of the Company&#x2019;s outstanding notes payable
 approximates fair value (a Level 2 fair value measurement),
 reflecting discount rates currently available to the Company.</p>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Other<br />
 Observable<br />
 Inputs<br />
 (Level&#xA0;2)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Unobservable<br />
 Inputs<br />
 (Level&#xA0;3)</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Cash equivalents:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Money market funds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total cash equivalents</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">42,509</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Marketable securities:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">99,868</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">85,126</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <br class="Apple-interchange-newline" />

 </div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MarketableSecuritiesPolicy', window );">Marketable Securities</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Marketable Securities</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following table summarizes the Company&#x2019;s marketable
 securities as of June&#xA0;30, 2015 and December&#xA0;31, 2014:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,396</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(48</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,348</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,487</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(4</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,483</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,240</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(1</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,484</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(7</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,607</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(60</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="64%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,200</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(9</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,716</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(18</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,698</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,478</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(8</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,470</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,394</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(35</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <br class="Apple-interchange-newline" />

 </div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerSharePolicyTextBlock', window );">Income (Loss) Per Share</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Income (Loss) Per Share</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Upon the closing of the Company&#x2019;s IPO in June 2014, all of
 the Company&#x2019;s outstanding redeemable convertible preferred
 shares were converted into shares of common stock. Prior to this
 conversion, the Company followed the two-class method when
 computing net income (loss) per share as the Company had issued
 shares that meet the definition of participating securities. The
 two-class method determines net income (loss) per share for each
 class of common and participating securities according to dividends
 declared or accumulated and participation rights in undistributed
 earnings. The two-class method requires income available to common
 stockholders for the period to be allocated between common and
 participating securities based upon their respective rights to
 receive dividends as if all income for the period had been
 distributed. The Company&#x2019;s redeemable convertible preferred
 shares contractually entitled the holders of such shares to
 participate in dividends, but did not contractually require the
 holders of such shares to participate in losses of the Company.
 Accordingly, the two-class method did not apply for periods in
 which the Company reported a net loss or a net loss attributable to
 common stockholders resulting from dividends or accretion related
 to its redeemable convertible preferred shares.</p>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Basic net income (loss) per share attributable to common
 stockholders is computed by dividing the net income (loss)
 attributable to common stockholders by the weighted average number
 of common shares outstanding for the period. Diluted net income
 (loss) per share attributable to common stockholders is computed by
 dividing the diluted net income (loss) attributable to common
 stockholders by the weighted average number of common shares,
 including potential dilutive common shares assuming the dilutive
 effect of outstanding stock options and unvested restricted common
 shares, as determined using the treasury stock method. For periods
 in which the Company has reported net losses, diluted net loss per
 common share attributable to common stockholders is the same as
 basic net loss per common share attributable to common
 stockholders, since dilutive common shares are not assumed to have
 been issued if their effect is antidilutive.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company reported a net loss attributable to common stockholders
 for the three and six months ended June&#xA0;30, 2015 and 2014.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="69%"></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;three&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;six&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Basic and diluted net loss per share attributable to common
 stockholders:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Numerator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Net loss</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,400</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,858</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Accretion of redeemable convertible preferred stock to redemption
 value</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(43</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(92</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 9em; TEXT-INDENT: -1em">
 Net loss attributable to common stockholders</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,443</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,950</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Denominator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Weighted average of common shares outstanding, basic and
 diluted</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,011,960</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,178,465</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,316,619</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,457,931</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
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 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
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 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
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 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
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 2015 and 2014, because they had an anti-dilutive impact:</p>
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 &#xA0;</p>
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 <tr>
 <td width="76%"></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
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 <td height="8"></td>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Options to purchase common stock</p>
 </td>
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 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,500,741</td>
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 <td valign="bottom">&#xA0;</td>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Unvested restricted stock</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,903</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,503,644</td>
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 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
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 <br class="Apple-interchange-newline" />

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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">Recently Issued and Adopted Accounting Pronouncements</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>Recently Issued and Adopted Accounting Pronouncements</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 In August 2014, the Financial Accounting Standards Board issued
 Accounting Standards Update No.&#xA0;2014-15, Presentation of
 Financial Statements &#x2014; Going Concern (Subtopic 205-40). The
 new guidance addresses management&#x2019;s responsibility to
 evaluate whether there is substantial doubt about an entity&#x2019;s
 ability to continue as a going concern and to provide related
 footnote disclosures. Management&#x2019;s evaluation should be based
 on relevant conditions and events that are known and reasonably
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 standard will be effective for the first interim period within
 annual reporting periods beginning after December&#xA0;15, 2016.
 Early adoption is permitted. The Company is evaluating the effect
 that this guidance will have on its condensed consolidated
 financial statements.</p>


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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for investments in debt and equity securities that have readily determinable fair values (marketable securities). At a minimum, the disclosure might address accounting policies for investments classified as trading, available for sale, or held to maturity and may include how the entity determines whether impairments of available for sale or held to maturity investments are other than temporary, how the fair values of the entity's securities are determined, and the entity's accounting treatment for transfers between investment categories.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18780-107790<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6381980&amp;loc=d3e87707-122711<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 5<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62652-112803<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 5<br><br><br><br> -Section M<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 2, 12<br><br><br><br> -Article 5<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 275<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6061-108592<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 275<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 9<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6143-108592<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 275<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 8<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6132-108592<br><br><br><br></p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983734460560">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Retirement Plan<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CompensationAndRetirementDisclosureAbstract', window );"><strong>Compensation and Retirement Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock', window );">Retirement Plan</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 18pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 <b>8. Retirement Plan</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company has a Savings Incentive Match Plan for employees. Under
 the terms of the plan, the Company contributes 2% of an
 employee&#x2019;s annual base salary, up to a maximum of the annual
 Internal Revenue Service compensation limits, for all full-time
 employees.</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 During the three months ended June&#xA0;30, 2015 and 2014, the
 Company recognized $34 and $13, respectively, of expense related to
 its contributions to this plan. During the six months ended
 June&#xA0;30, 2015 and 2014, the Company recognized $79 and $26,
 respectively, of expense related to its contributions to this
 plan.</p>


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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for pension and other postretirement benefits.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 80<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49170332&amp;loc=SL14450702-114947<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e2410-114920<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 60<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6414203&amp;loc=d3e39675-114964<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 70<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49170846&amp;loc=d3e28014-114942<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 715<br><br><br><br> -SubTopic 60<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6414199&amp;loc=d3e39622-114963<br><br><br><br></p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983500426128">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Australia Research and Development Tax Incentive<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentAbstract', window );"><strong>Research and Development [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchDevelopmentAndComputerSoftwareDisclosureTextBlock', window );">Australia Research and Development Tax Incentive</a></td>
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 <b>9. Australia Research and Development Tax Incentive</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The Company&#x2019;s wholly owned subsidiary, Zafgen Australia Pty
 Limited, which conducts core research and development activities on
 behalf of the Company is eligible to receive a 45% refundable tax
 incentive for qualified research and development activities. For
 the three months ended June&#xA0;30, 2015 and 2014, $458 and $47,
 respectively, was recorded as a reduction to research and
 development expenses in the condensed consolidated statements of
 operations. For the six months ended June&#xA0;30, 2015 and 2014,
 $687 and $73, respectively, was recorded as a reduction to research
 and development expenses in the condensed consolidated statements
 of operations These amounts represented 45% of the Company&#x2019;s
 qualified research and development spending in Australia. The
 refund is denominated in Australian dollars and, therefore, the
 receivable is re-measured into U.S. dollars as of each reporting
 date. For the three months ended June&#xA0;30, 2015 and 2014, the
 Company recorded in its condensed consolidated statements of
 operations unrealized foreign currency exchange gains (losses) of
 $(14) and $22, respectively, related to this tax incentive
 receivable. For the six months ended June&#xA0;30, 2015 and 2014,
 the Company recorded in its condensed consolidated statements of
 operations unrealized foreign currency exchange gains (losses) of
 $(38) and $64, respectively, related to this tax incentive
 receivable. As of June&#xA0;30, 2015 and December&#xA0;31, 2014,
 the Company&#x2019;s tax incentive receivable from the Australian
 government was $1,040 and $391, respectively.</p>


 </div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 730<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 730<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6420387&amp;loc=d3e23221-108380<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 730<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6420387&amp;loc=d3e23218-108380<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 730<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6420387&amp;loc=d3e23199-108380<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 985<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br><br><br></p></div>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484651424">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTableTextBlock', window );">Summary of Cash Equivalents and Marketable Securities</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following tables summarize the Company&#x2019;s cash equivalents
 and marketable securities as of June&#xA0;30, 2015 and
 December&#xA0;31, 2014:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
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 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
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 <td></td>
 <td></td>
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 <td></td>
 <td></td>
 <td></td>
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 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Other<br />
 Observable<br />
 Inputs<br />
 (Level&#xA0;2)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Unobservable<br />
 Inputs<br />
 (Level&#xA0;3)</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Cash equivalents:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Money market funds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total cash equivalents</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">63,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Marketable securities:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">60,831</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">199,680</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">61,133</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">138,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0px; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 1px 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12px; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted<br />
 Prices&#xA0;in<br />
 Active<br />
 Markets<br />
 (Level&#xA0;1)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Other<br />
 Observable<br />
 Inputs<br />
 (Level&#xA0;2)</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
 Unobservable<br />
 Inputs<br />
 (Level&#xA0;3)</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Cash equivalents:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Money market funds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total cash equivalents</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">42,509</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,767</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 <b>Marketable securities:</b></p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 U.S. government securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Corporate bonds</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">22,168</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Commercial paper</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Total marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Total cash equivalents and marketable securities</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">99,868</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">14,742</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">85,126</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <br class="Apple-interchange-newline" />

 </div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesTextBlock', window );">Summary of Marketable Securities</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following table summarizes the Company&#x2019;s marketable
 securities as of June&#xA0;30, 2015 and December&#xA0;31, 2014:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="62%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>June&#xA0;30, 2015</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,396</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(48</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,348</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,487</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(4</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,483</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,240</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(1</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">49,239</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,484</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(7</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,477</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,607</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(60</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">136,547</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="64%"></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="5%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="14" align="center"><b>December&#xA0;31, 2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom"><b>Assets:</b></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Amortized<br />
 Cost</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Gains</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Gross<br />
 Unrealized<br />
 Losses</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>Fair&#xA0;Value</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 U.S. government securities (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,200</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(9</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">34,191</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,716</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(18</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">18,698</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Corporate bonds (due after 1 year through 2 years)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,478</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(8</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">3,470</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Commercial paper (due within 1 year)</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,000</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,394</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">$</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(35</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">57,359</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 </table>
 <br class="Apple-interchange-newline" />

 </div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock', window );">Computation of Basic and Diluted Earnings Per Share</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 Basic and diluted net loss per share attributable to common
 stockholders was calculated as follows:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
 <tr>
 <td width="69%"></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="2%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;three&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center">
 <b>For&#xA0;the&#xA0;six&#xA0;months&#xA0;ended<br />
 June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Basic and diluted net loss per share attributable to common
 stockholders:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Numerator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 5em; TEXT-INDENT: -1em">
 Net loss</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,400</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,858</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Accretion of redeemable convertible preferred stock to redemption
 value</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(43</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">(92</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 9em; TEXT-INDENT: -1em">
 Net loss attributable to common stockholders</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(17,756</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(6,443</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(31,228</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(10,950</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Denominator:</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 <td valign="bottom"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 7em; TEXT-INDENT: -1em">
 Weighted average of common shares outstanding, basic and
 diluted</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">27,011,960</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,178,465</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">26,316,619</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,457,931</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 3em; TEXT-INDENT: -1em">
 Net loss per share attributable to common stockholders, basic and
 diluted</p>
 </td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(0.66</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(2.96</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(1.19</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">$</td>
 <td valign="bottom" align="right">(7.51</td>
 <td valign="bottom" nowrap="nowrap">)&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
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 <br class="Apple-interchange-newline" />

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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock', window );">Summary of Common Stock Equivalents Outstanding</a></td>
<td class="text"><div>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 12pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 The following common stock equivalents outstanding (prior to
 consideration of the treasury stock method) as of June&#xA0;30,
 2015 and 2014, were excluded from the computation of diluted net
 loss per share for the three and six months ended June&#xA0;30,
 2015 and 2014, because they had an anti-dilutive impact:</p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 12pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 0pt; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
 &#xA0;</p>
 <table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; TEXT-TRANSFORM: none; WORD-SPACING: 0px; WIDOWS: 1; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
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 <td width="76%"></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 <td valign="bottom" width="3%"></td>
 <td></td>
 <td></td>
 <td></td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"><b>As of June&#xA0;30,</b></td>
 <td valign="bottom">&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2015</b></td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
 <td valign="bottom">&#xA0;</td>
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 <td height="8"></td>
 <td height="8" colspan="4"></td>
 <td height="8" colspan="4"></td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Options to purchase common stock</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,500,741</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
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 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
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 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">
 <td valign="top">
 <p style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
 Unvested restricted stock</p>
 </td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,903</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;</td>
 <td valign="bottom" nowrap="nowrap" align="right">
 &#x2014;&#xA0;&#xA0;</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 1px solid">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'" bgcolor="#CCEEFF">
 <td valign="top"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">2,503,644</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">&#xA0;</td>
 <td valign="bottom" align="right">1,839,895</td>
 <td valign="bottom" nowrap="nowrap">&#xA0;&#xA0;</td>
 </tr>
 <tr style="FONT-SIZE: 0pt">
 <td valign="bottom"></td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 <td valign="bottom">&#xA0;&#xA0;</td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td valign="bottom">
 <p style="BORDER-TOP: rgb(0,0,0) 3px double">&#xA0;</p>
 </td>
 <td>&#xA0;</td>
 </tr>
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 <br class="Apple-interchange-newline" />

 </div><span></span>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountingPoliciesAbstract</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62557-112803<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 7<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27337-111563<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27198-111563<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 942<br><br><br><br> -SubTopic 320<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6957658&amp;loc=d3e62586-112803<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27161-111563<br><br><br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 9<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27357-111563<br><br><br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 6<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27724398&amp;loc=d3e27290-111563<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesTextBlock</td>
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<td>nonnum:textBlockItemType</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTableTextBlock">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 820<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19190-110258<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 820<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (a),(b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19207-110258<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (c)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br></p></div>
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<title></title>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983488286112">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies - Additional Information (Detail)<br></strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Mar. 31, 2015 </div>
<div>Option</div>
</th>
<th class="th">
<div>Jun. 30, 2015 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Jun. 30, 2014 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Jun. 30, 2015 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Jun. 30, 2014 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_CommitmentAndContingenciesLineItems', window );"><strong>Commitment And Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeaseExpirationDate1', window );">Lease expiration date</a></td>
<td class="text">Jul. 31,  2017<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OperatingLeaseOptionForExtensionPeriod', window );">Lease extension period</a></td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OperatingLeasesNumberOfOptionsToExtendLease', window );">Number of options to extend lease | Option</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesRentExpenseNet', window );">Operating lease, rental expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 79,000<span></span>
</td>
<td class="nump">$ 27,000<span></span>
</td>
<td class="nump">$ 137,000<span></span>
</td>
<td class="nump">$ 52,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_SubsequentLicensedProductMember', window );">Subsequent Licensed Product [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_CommitmentAndContingenciesLineItems', window );"><strong>Commitment And Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_LicensingFeesPerProductMaximum', window );">Licensing fees per product maximum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,250,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,250,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RangeAxis=us-gaap_MaximumMember', window );">Maximum [Member] | Pre Commercialization Milestones [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_CommitmentAndContingenciesLineItems', window );"><strong>Commitment And Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_MilestonePaymentAmount', window );">Milestone payments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">12,250,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">12,250,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RangeAxis=us-gaap_MaximumMember', window );">Maximum [Member] | Product Commercialization Milestones [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_CommitmentAndContingenciesLineItems', window );"><strong>Commitment And Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_MilestonePaymentAmount', window );">Milestone payments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 12,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 12,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=zfgn_OfficeTwoMember', window );">Office Two [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_CommitmentAndContingenciesLineItems', window );"><strong>Commitment And Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeaseExpirationDate1', window );">Lease expiration date</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Jul. 31,  2017<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OperatingLeaseOptionForExtensionPeriod', window );">Lease extension period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeaseExpirationDate1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Date which lease or group of leases is set to expire, in CCYY-MM-DD format.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LeaseExpirationDate1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeasesRentExpenseNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6453985&amp;loc=d3e41499-112717<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesRentExpenseNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_CommitmentAndContingenciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commitment And Contingencies [Line Items]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_CommitmentAndContingenciesLineItems</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_LicensingFeesPerProductMaximum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Maximum fee the Company is obligated to pay per licensed product.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_LicensingFeesPerProductMaximum</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_MilestonePaymentAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of payment due upon reaching milestone.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_MilestonePaymentAmount</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_OperatingLeaseOptionForExtensionPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Operating Lease Option For Extension Period</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_OperatingLeaseOptionForExtensionPeriod</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:durationItemType</td>
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<td>na</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_OperatingLeasesNumberOfOptionsToExtendLease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Operating Leases Number Of Options To Extend Lease</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_OperatingLeasesNumberOfOptionsToExtendLease</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_SubsequentLicensedProductMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_SubsequentLicensedProductMember</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RangeAxis=us-gaap_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_PreCommercializationMilestonesMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_ProductCommercializationMilestonesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=zfgn_ProductCommercializationMilestonesMember</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=zfgn_OfficeTwoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=zfgn_OfficeTwoMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<head>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983488381472">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Nature of the Business and Basis of Presentation - Additional Information (Detail) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jan. 28, 2015</div></th>
<th class="th"><div>Jun. 24, 2014</div></th>
<th class="th"><div>Jan. 31, 2015</div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems', window );"><strong>Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationDateOfIncorporation', window );">Entity incorporation date</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Nov. 22,  2005<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceInitialPublicOffering', window );">Proceeds from public offerings, net of commissions and underwriting discounts</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 102,672<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 130,044<span></span>
</td>
<td class="nump">$ 102,672<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_InitialPublicOfferingCost', window );">Offering costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,508<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Underwriting discounts, commissions and offering costs incurred</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 473<span></span>
</td>
<td class="nump">$ 1,418<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember', window );">IPO [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems', window );"><strong>Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Common stock issued</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6,900,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssuedPricePerShare', window );">Common stock issued price per share</a></td>
<td class="text">&#160;<span></span>
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<td class="nump">$ 16.00<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=zfgn_FollowOnOfferingMember', window );">Follow-on Offering [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems', window );"><strong>Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Common stock issued</a></td>
<td class="nump">3,942,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,942,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssuedPricePerShare', window );">Common stock issued price per share</a></td>
<td class="nump">$ 35.00<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 35.00<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from offering, net of commissions and underwriting discounts</a></td>
<td class="nump">$ 130,044<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 130,044<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Underwriting discounts, commissions and offering costs incurred</a></td>
<td class="nump">$ 473<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 473<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationDateOfIncorporation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Date when an entity was incorporated</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationDateOfIncorporation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 15<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceInitialPublicOffering">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the amount received from entity's first offering of stock to the public.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceInitialPublicOffering</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesIssuedPricePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or per unit amount of equity securities issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesIssuedPricePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.3-04)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 02<br><br><br><br> -Paragraph 29, 30<br><br><br><br> -Article 5<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_InitialPublicOfferingCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Initial Public Offering Cost</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_InitialPublicOfferingCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">zfgn_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=zfgn_FollowOnOfferingMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983500400576">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Summary of Common Stock Equivalents Outstanding (Detail) - shares<br></strong></div></th>
<th class="th" colspan="2">6 Months Ended</th>
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<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="nump">2,503,644<span></span>
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<td class="nump">1,839,895<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_StockOptionMember', window );">Options to Purchase Common Stock [Member]</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Securities excluded from computation of earnings per share</a></td>
<td class="nump">2,500,741<span></span>
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<td class="nump">1,839,895<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=zfgn_UnvestedRestrictedCommonStockMember', window );">Unvested Restricted Stock [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Securities excluded from computation of earnings per share</a></td>
<td class="nump">2,903<span></span>
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<td class="text">&#160;<span></span>
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<div style="display: none;">
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Antidilution<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6505113<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Diluted Earnings Per Share<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6510752<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Contingent Stock Agreement<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6508534<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (c)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983484567424">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Jun. 30, 2014</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Cash flows from operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (31,228)<span></span>
</td>
<td class="num">$ (10,858)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net loss to net cash used in operating activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Stock-based compensation expense</a></td>
<td class="nump">2,996<span></span>
</td>
<td class="nump">444<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaidInKindInterest', window );">Non-cash interest expense</a></td>
<td class="nump">33<span></span>
</td>
<td class="nump">19<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Depreciation', window );">Depreciation expense</a></td>
<td class="nump">14<span></span>
</td>
<td class="nump">6<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ForeignCurrencyTransactionGainLossUnrealized', window );">Unrealized foreign currency transaction losses (gains)</a></td>
<td class="nump">38<span></span>
</td>
<td class="num">(64)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_PremiumOnMarketableSecurities', window );">Premium on purchases of marketable securities</a></td>
<td class="num">(675)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentIncomeAmortizationOfPremium', window );">Amortization of premium on marketable securities</a></td>
<td class="nump">377<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses and other current assets</a></td>
<td class="nump">202<span></span>
</td>
<td class="num">(1,143)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_IncreaseDecreaseInTaxIncentivesReceivable', window );">Tax incentive receivable</a></td>
<td class="num">(687)<span></span>
</td>
<td class="nump">459<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="nump">2,014<span></span>
</td>
<td class="nump">97<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedLiabilities', window );">Accrued expenses</a></td>
<td class="nump">1,442<span></span>
</td>
<td class="nump">791<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations', window );">Net cash used in operating activities</a></td>
<td class="num">(25,474)<span></span>
</td>
<td class="num">(10,249)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>Cash flows from investing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities', window );">Proceeds from maturities of marketable securities</a></td>
<td class="nump">79,717<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireMarketableSecurities', window );">Purchases of marketable securities</a></td>
<td class="num">(158,632)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchases of property and equipment</a></td>
<td class="num">(150)<span></span>
</td>
<td class="num">(11)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_DepositsForLeasedProperty', window );">Deposits for leased property</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(57)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations', window );">Net cash used in investing activities</a></td>
<td class="num">(79,065)<span></span>
</td>
<td class="num">(68)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Cash flows from financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock', window );">Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">442<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromNotesPayable', window );">Proceeds from issuance of notes payable, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7,386<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDebtIssuanceCosts', window );">Payments of debt offering costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(49)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceInitialPublicOffering', window );">Proceeds from public offerings, net of commissions and underwriting discounts</a></td>
<td class="nump">130,044<span></span>
</td>
<td class="nump">102,672<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Payments of public offering costs</a></td>
<td class="num">(473)<span></span>
</td>
<td class="num">(1,418)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions', window );">Proceeds from exercise of common stock options and issuance of common stock pursuant to employee stock purchase plan</a></td>
<td class="nump">438<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations', window );">Net cash provided by financing activities</a></td>
<td class="nump">130,009<span></span>
</td>
<td class="nump">109,033<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease', window );">Net increase in cash and cash equivalents</a></td>
<td class="nump">25,470<span></span>
</td>
<td class="nump">98,716<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents at beginning of period</a></td>
<td class="nump">58,103<span></span>
</td>
<td class="nump">35,517<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents at end of period</a></td>
<td class="nump">83,573<span></span>
</td>
<td class="nump">134,233<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract', window );"><strong>Supplemental disclosure of non-cash investing and financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment', window );">Accretion of redeemable convertible preferred stock to redemption values</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">92<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction', window );">Deferred offering costs included in accounts payable and accrued expenses</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">894<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConversionOfStockAmountConverted1', window );">Conversion of redeemable preferred stock to common stock</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">104,331<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental disclosure of cash flow information:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPaid', window );">Cash paid for interest</a></td>
<td class="nump">$ 304<span></span>
</td>
<td class="nump">$ 103<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SAB TOPIC 14.F)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5047-113901<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 718<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (h)(1)(i)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Staff Accounting Bulletin (SAB)<br><br><br><br> -Number Topic 14<br><br><br><br> -Section F<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3044-108585<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Cash Equivalents<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.1)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 24<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 230<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49171198&amp;loc=d3e33268-110906<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConversionOfStockAmountConverted1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4313-108586<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 5<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4332-108586<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4304-108586<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConversionOfStockAmountConverted1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of debt issuance costs that were incurred during a noncash or partial noncash transaction.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 5<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4332-108586<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 3<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4304-108586<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4313-108586<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Depreciation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Depreciation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ForeignCurrencyTransactionGainLossUnrealized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30690-110894<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450189&amp;loc=d3e30700-110894<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 830<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6450222&amp;loc=d3e30840-110895<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ForeignCurrencyTransactionGainLossUnrealized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid for interest during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4297-108586<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 25<br><br><br><br> -Subparagraph (e)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3536-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPaid</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentIncomeAmortizationOfPremium">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization of purchase premium on nonoperating securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.8)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentIncomeAmortizationOfPremium</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 26<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3574-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 24<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 26<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3574-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 24<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 24<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 25<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3536-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Net Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.19)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 260<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 1<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 225<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 2<br><br><br><br> -Subparagraph (SX 210.5-03.18)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br><br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 944<br><br><br><br> -SubTopic 225<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.7-04.22)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br><br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Other Comprehensive Income<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br><br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 03<br><br><br><br> -Paragraph 19<br><br><br><br> -Article 5<br><br><br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher SEC<br><br><br><br> -Name Regulation S-X (SX)<br><br><br><br> -Number 210<br><br><br><br> -Section 04<br><br><br><br> -Paragraph 20<br><br><br><br> -Article 9<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaidInKindInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Interest paid other than in cash for example by issuing additional debt securities. As a noncash item, it is added to net income when calculating cash provided by or used in operations using the indirect method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 28<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaidInKindInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfDebtIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 15<br><br><br><br> -Subparagraph (e)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfDebtIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 15<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireMarketableSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cash outflow for purchase of trading, available-for-sale securities and held-to-maturity securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49167202&amp;loc=d3e26853-111562<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Investing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 13<br><br><br><br> -Subparagraph (a),(b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3213-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireMarketableSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Investing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 13<br><br><br><br> -Subparagraph (c)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3213-108585<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceInitialPublicOffering">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the amount received from entity's first offering of stock to the public.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceInitialPublicOffering</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from issuance of callable preferred stock which is identified as being convertible to another type of financial security at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (a)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromNotesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a borrowing supported by a written promise to pay an obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 14<br><br><br><br> -Subparagraph (b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3255-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Financing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 230<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 12<br><br><br><br> -Subparagraph (a),(b)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3179-108585<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 320<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 11<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=49167202&amp;loc=d3e26853-111562<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Investing Activities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid for deposits on leased property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in tax incentive receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of taxes paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the premium paid on marketable securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983491459664">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Jun. 30, 2015</div></th></tr>
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 <b>5. Stockholders&#x2019; Equity</b></p>
 <p style="MARGIN-BOTTOM: 0pt; WHITE-SPACE: normal; TEXT-TRANSFORM: none; WORD-SPACING: 0px; COLOR: rgb(0,0,0); FONT: 10pt 'Times New Roman'; WIDOWS: 1; MARGIN-TOP: 6pt; LETTER-SPACING: normal; TEXT-INDENT: 4%; -webkit-text-stroke-width: 0px">
 In January 2015, the Company completed a follow-on offering
 resulting in the sale of 3,942,200 common shares at $35.00 per
 share, including 514,200 shares related to the exercise of the
 over-allotment option by the underwriters. The Company received net
 proceeds from the follow-on offering of $130,044 based upon the
 price of $35.00 per share after deducting underwriting discounts
 and commissions. The Company also incurred offering costs of $473
 related to the follow-on offering.</p>
 </div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 235<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.4-08.(d),(e))<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 505<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 4<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21484-112644<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.2.0.727</span><table class="report" border="0" cellspacing="2" id="idm139983494755024">
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<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Jun. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PayablesAndAccrualsAbstract', window );"><strong>Payables and Accruals [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_zfgn_AccruedResearchAndDevelopmentExpenseCurrent', window );">Accrued research and development expenses</a></td>
<td class="nump">$ 2,542<span></span>
</td>
<td class="nump">$ 1,180<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeRelatedLiabilitiesCurrent', window );">Accrued payroll and related expenses</a></td>
<td class="nump">1,256<span></span>
</td>
<td class="nump">1,239<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedProfessionalFeesCurrent', window );">Accrued professional fees</a></td>
<td class="nump">519<span></span>
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<td class="nump">585<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAccruedLiabilitiesCurrent', window );">Accrued other</a></td>
<td class="nump">124<span></span>
</td>
<td class="nump">168<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued expenses</a></td>
<td class="nump">$ 4,441<span></span>
</td>
<td class="nump">$ 3,172<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 6<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6911-107765<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Current Liabilities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6509677<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 8<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6935-107765<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 9<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e7018-107765<br><br><br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Glossary Current Liabilities<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6509677<br><br><br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 6<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6911-107765<br><br><br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section 45<br><br><br><br> -Paragraph 8<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6935-107765<br><br><br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 210<br><br><br><br> -SubTopic 10<br><br><br><br> -Section S99<br><br><br><br> -Paragraph 1<br><br><br><br> -Subparagraph (SX 210.5-02.20)<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br><br><br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred through that date and payable for expenses related to research and development. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies (Tables)<br></strong></div></th>
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 Future minimum lease payments for its operating lease as of
 June&#xA0;30, 2015 are as follows:</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br><br><br><br> -Publisher FASB<br><br><br><br> -Name Accounting Standards Codification<br><br><br><br> -Topic 840<br><br><br><br> -SubTopic 20<br><br><br><br> -Section 50<br><br><br><br> -Paragraph 2<br><br><br><br> -URI http://asc.fasb.org/extlink&amp;oid=6453985&amp;loc=d3e41502-112717<br><br><br><br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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