1069715
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20123013
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9728237
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3203000
1493000
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4315000
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6992694
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CERULEAN PHARMA INC.
false
Non-accelerated Filer
2014
10-Q
2014-03-31
2005-11-28
0001401914
--12-31
Q1
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>6.</b></td>
<td valign="top" align="left"><b>STOCK OPTION PLAN</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<b><i>2007 Stock Incentive Plan</i></b></p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company has recorded aggregate stock-based compensation expense
related to the issuance of stock option awards in the following
line items in the accompanying consolidated statement of
operations:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<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-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="6" align="center">
<b>Three Months Ended March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></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: 1em; TEXT-INDENT: -1em">
Research and development</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">53,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">56,000</td>
<td valign="bottom" nowrap="nowrap">  </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">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">95,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">97,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Total</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">148,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">153,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The fair value of each option award is estimated on the date of
grant using the Black-Scholes option-pricing model based on the
assumptions noted in the table below. Expected volatility for the
Company’s common stock was determined based on an average of
the historical volatility of a peer-group of similar public
companies. The Company has limited option exercise information, as
such; the expected term of the options granted was calculated using
the simplified method that represents the average of the
contractual term of the option and the weighted-average vesting
period of the option. The assumed dividend yield is based upon the
Company’s expectation of not paying dividends in the
foreseeable future. The risk-free rate for periods within the
contractual life of the option is based upon the U.S. Treasury
yield curve in effect at the time of grant.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The assumptions used in the Black-Scholes option-pricing model for
stock options granted to employees and directors in exchange for
board services during the three months ended March 31, 2014
and 2013 are as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<tr>
<td width="76%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="6" align="center"><b>March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></td>
<td valign="bottom"> </td>
</tr>
<tr>
<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">
Expected life</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6 years</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6 years</td>
<td valign="bottom" nowrap="nowrap">  </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">
Risk-free interest rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right"><font style="WHITE-SPACE: nowrap">1.83%-2.00</font></td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1.09</td>
<td valign="bottom" nowrap="nowrap">% </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">
Expected volatility</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">60</td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">79</td>
<td valign="bottom" nowrap="nowrap">% </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">
Expected dividend rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">—  </td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">—  </td>
<td valign="bottom" nowrap="nowrap">% </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0px; FONT-SIZE: 1px; MARGIN-TOP: 6px">
 </p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 0pt">
A summary of stock option activity for employee, directors and
nonemployee awards under the 2007 Stock Incentive Plan (the
“2007 Plan”) during the three months ended
March 31, 2014 is presented below:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="59%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Number of<br />
Shares</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Weighted-<br />
Average<br />
Exercise<br />
Price</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Weighted-<br />
Average<br />
Remaining<br />
Contractual<br />
Life (Years)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Aggregate<br />
Intrinsic<br />
Value</b></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: 1em; TEXT-INDENT: -1em">
Outstanding — January 1, 2014</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,062,694</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3.98</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">7.2</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,028,000</td>
<td valign="bottom" nowrap="nowrap">  </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">
Granted</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">159,610</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">10.59</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Exercised</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(8,030</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3.34</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Forfeited</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(6,197</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5.76</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Outstanding — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,208,077</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4.85</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">7.4</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3,169,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Options expected to vest — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">543,449</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5.62</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">8.7</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,267,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Options exercisable — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">637,169</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4.16</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6.1</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,839,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The weighted-average per share grant date fair value of options
granted during the three months ended March 31, 2014 and 2013
was $5.95 and $2.67, respectively.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company has recorded stock-based compensation expense related
to nonemployee awards of $12,000, and $9,000 for the three months
ended March 31, 2014 and 2013, respectively. The compensation
expense related to the nonemployee awards is included in the total
stock-based compensation each year and is subject to re-measurement
until the options vest. The Black-Scholes assumptions used to
estimate fair value for the three months ended March 31, 2014
and 2013, respectively, were as follows: risk-free rate of 2.11% to
2.63% and 1.11% to 1.49%, estimated volatility of 56% to 59% and
76% to 79%, remaining contractual life of 8 and 7 years and no
expected dividends, respectively. The Company did not grant any
nonemployee stock option grants for the three months ended
March 31, 2014 and 2013, except for a performance award grant
in 2013, to the board chairman for non-board related services.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 18pt">
<b><i>2014 Stock Incentive Plan</i></b></p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In March 2014, the Company’s board of directors adopted and
its stockholders approved the 2014 Stock Incentive Plan (the
“2014 Plan”), which became effective upon the closing
of the IPO. The 2014 Plan provides for the grant of incentive stock
options, nonstatutory stock options, stock appreciation rights,
restricted stock, restricted stock units and other stock-based
awards. Upon effectiveness of the 2014 Plan, the number of shares
of the Company’s common stock that were reserved for issuance
under the 2014 Plan was equal to the sum of (1) 2,400,000
shares plus (2) the number of shares (up to 1,221,651 shares)
equal to the sum of the number of shares of the Company’s
common stock then available for grant under the 2007 Plan and the
number of shares of the Company’s common stock subject to
outstanding awards under the 2007 Plan that expire, terminate or
are otherwise surrendered, cancelled, forfeited or repurchased by
the Company at their original issuance price pursuant to a
contractual repurchase right (subject, in the case of incentive
stock options, to any limitation of the Internal Revenue Code) plus
(3) an annual increase to be added on the first day of each
fiscal year, beginning with the fiscal year ending
December 31, 2015 and continuing until, and including, the
fiscal year ending December 31, 2024, equal to the least of
(A) 1,000,000 shares of the Company’s common stock
(B) 4% of the number of shares of the Company’s common
stock outstanding on the first day of the fiscal year, or
(C) an amount determined by the Company’s board of
directors.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 18pt">
<b><i>2014 Employee Stock Purchase Plan</i></b></p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In March 2014, the Company’s board of directors adopted and
its stockholders approved the 2014 employee stock purchase plan
(the “2014 ESPP”), which became effective upon the
closing of the IPO. The 2014 ESPP will be administered by the
Company’s board of directors or by a committee appointed by
the Company’s board of directors. The 2014 ESPP initially
provides participating employees with the opportunity to purchase
up to an aggregate 500,000 of shares of the Company’s common
stock. The number of shares of the Company’s common stock
reserved for issuance under the 2014 ESPP will automatically
increase on the first day of each fiscal year, commencing on
January 1, 2015 and ending January 1, 2024, in an amount
equal to the least of (i) 600,000 shares of the
Company’s common stock, (ii) 1% of the total number of
shares of the Company’s common stock outstanding on the first
day of the applicable year, or (iii) an amount determined by
the Company’s board of directors.</p>
</div>
P6Y1M6D
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 0pt">
A summary of stock option activity for employee, directors and
nonemployee awards under the 2007 Stock Incentive Plan (the
“2007 Plan”) during the three months ended
March 31, 2014 is presented below:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="59%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Number of<br />
Shares</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Weighted-<br />
Average<br />
Exercise<br />
Price</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Weighted-<br />
Average<br />
Remaining<br />
Contractual<br />
Life (Years)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" nowrap="nowrap" align="center"><b>Aggregate<br />
Intrinsic<br />
Value</b></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: 1em; TEXT-INDENT: -1em">
Outstanding — January 1, 2014</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,062,694</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3.98</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">7.2</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,028,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Granted</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">159,610</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">10.59</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Exercised</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(8,030</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3.34</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Forfeited</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(6,197</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5.76</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Outstanding — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,208,077</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4.85</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">7.4</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">3,169,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Options expected to vest — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">543,449</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5.62</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">8.7</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,267,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Options exercisable — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">637,169</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4.16</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6.1</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,839,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
</table>
</div>
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
A summary of the financial assets and liabilities that are measured
on a recurring basis at fair value as of March 31, 2014 and
December 31, 2013, is as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="54%"></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></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"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2"> </td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="10" align="center"><b>Fair Value Measurements
Using</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Carrying<br />
Value</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted Prices in<br />
Active Markets<br />
for Identical<br />
Assets</b><br />
<b>(Level 1)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
Other<br />
Observable<br />
Inputs<br />
(Level 2)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
Unobservable<br />
Inputs</b><br />
<b>(Level 3)</b></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: 1em; TEXT-INDENT: -1em">
<b>March 31, 2014</b></p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Money market funds</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,883,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,883,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </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">
Preferred stock warrant liability</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </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">
<b>December 31, 2013</b></p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Money market funds</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5,233,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5,233,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </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">
Preferred stock warrant liability</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
</table>
</div>
5.76
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>1.</b></td>
<td valign="top" align="left"><b>NATURE OF BUSINESS AND
OPERATIONS</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<b>Nature of Business</b> — Cerulean Pharma Inc.
(the “Company”) was incorporated on November 28,
2005 as a Delaware corporation and is located in Cambridge,
Massachusetts. The Company was formed to develop novel,
nanotechnology-based therapeutics in the areas of oncology and
other diseases. During 2013, the Company formed a wholly-owned
subsidiary, Cerulean Pharma Australia Pty Ltd as an
Australian-based proprietary limited company. The activity in the
subsidiary to date has been insignificant.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<b>Basis of Presentation –</b> The consolidated financial
statements include the accounts of the Company and its wholly-owned
subsidiary. All intercompany accounts and transactions have been
eliminated. The consolidated interim financial statements of the
Company included herein have been prepared, without audit, pursuant
to the rules and regulations of the Securities and Exchange
Commission (the “SEC”). Certain information and
footnote disclosures normally included in financial statements
prepared in accordance with accounting principles generally
accepted in the United States of America have been condensed or
omitted from this report, as is permitted by such rules and
regulations. Accordingly, these consolidated financial statements
should be read in conjunction with the financial statements as of
and for the year ended December 31, 2013 and notes thereto,
included in the Company’s prospectus filed with the SEC
pursuant to Rule 424(b)(4) on April 14, 2014 (the
“Prospectus”).</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The unaudited interim consolidated financial statements have been
prepared on the same basis as the audited consolidated financial
statements. In the opinion of the Company’s management, the
accompanying unaudited interim consolidated financial statements
contain all adjustments which are necessary to present fairly the
Company’s financial position as of March 31, 2014 and
the results of its operations and cash flows for the three months
ended March 31, 2014 and 2013 and the period from
November 28, 2005 (date of incorporation) to March 31,
2014. Such adjustments are of a normal and recurring nature. The
results for the three months ended March 31, 2014 are not
indicative of the results for the year ending December 31,
2014, or for any future period.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
On April 15, 2014, the Company completed the sale of 8,500,000
shares of its common stock in its initial public offering (the
“IPO”), at a price to the public of $7.00 per share,
resulting in net proceeds to the Company of $53.2 million after
deducting underwriting discounts and commissions and offering
expenses payable by the Company. On May 7, 2014, the Company
completed the sale of an additional 1,069,715 shares of common
stock at a price to the public of $7.00 per share under a partial
exercise by the underwriters of their option to purchase additional
shares of common stock, resulting in net proceeds to the Company of
$7.0 million after deducting underwriting discounts and
commissions.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In preparation for the IPO, the Company’s board of directors
and stockholders approved a 1-for-14.5074 reverse stock split of
the Company’s common stock effective March 31, 2014. All
share and per share amounts in the consolidated financial
statements contained herein and notes thereto have been
retroactively adjusted, where necessary, to give effect to this
reverse stock split. In connection with the closing of the IPO, all
of the Company’s outstanding redeemable convertible preferred
stock and convertible notes automatically converted into shares of
common stock as of April 15, 2014, resulting in the issuance
by the Company of an additional 9,728,237 shares of common stock.
The significant increase in shares outstanding in April 2014 is
expected to impact the year-over-year comparability of the
Company’s net loss per share calculations over the next
year.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In connection with the completion of the IPO on April 15, 2014
the Company’s outstanding warrants to purchase 1,857,226
shares of the Company’s preferred stock automatically
converted into warrants to purchase an aggregate of 128,663 shares
of the Company’s common stock and as a result the Company
reclassified the warrant liability to additional paid-in
capital.</p>
</div>
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The following potentially dilutive securities that were
outstanding, prior to the use of the two-class method, have been
excluded from the computation of diluted weighted-average shares
outstanding, because the inclusion of such securities would have an
antidilutive impact due to the losses reported (in common stock
equivalent shares):</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>As of<br />
March 31,<br />
2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>As of<br />
March 31,<br />
2013</b></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: 1em; TEXT-INDENT: -1em">
Options to purchase common stock</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,208,077</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,142,838</td>
<td valign="bottom" nowrap="nowrap">  </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">
Warrants to purchase redeemable convertible preferred stock</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">128,663</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">128,663</td>
<td valign="bottom" nowrap="nowrap">  </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">
Redeemable convertible preferred stock</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6,826,004</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6,992,694</td>
<td valign="bottom" nowrap="nowrap">  </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">
Convertible notes payable</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">2,894,099</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
</tr>
</table>
</div>
P7Y4M24D
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>5.</b></td>
<td valign="top" align="left"><b>CONVERTIBLE NOTES PAYABLE TO
SHAREHOLDERS</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In 2014, the Company issued convertible promissory notes in the
aggregate amount of $6,000,000 to existing investors and a
convertible promissory note in the amount of $2,500,000 to a new
investor. All the notes have a stated interest rate of 7%, and are
payable within 30 days of written demand by the holders of at least
60% of the aggregate principal amount outstanding under the notes
after February 26, 2015. Outstanding principal and unpaid
accrued interest due under the notes were automatically converted
into shares of the Company’s common stock upon the closing of
the Company’s IPO on April 15, 2014, at a conversion
price equal to 77.5% of the IPO price. The Company will record a
non-cash charge in the second quarter of 2014, equal to the
difference between the fair value of the shares into which the
notes converted and the carrying amount of the notes.</p>
</div>
P30D
April 15, 2014
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>7.</b></td>
<td valign="top" align="left"><b>FAIR VALUE MEASUREMENTS</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company’s financial instruments consist of cash
equivalents, accounts payable, accrued expenses, debt obligations,
and preferred stock warrants. The carrying amount of accounts
payable and accrued expenses are considered a reasonable estimate
of their fair value, due to the short-term maturity of these
instruments. The carrying amount of debt is also considered to be a
reasonable estimate of the fair value based on the short term
nature of the debt and because the debt bears interest at the
prevailing market rate for instruments with similar
characteristics.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
Fair value is defined as the exchange price that would be received
for an asset or paid to transfer a liability (an exit price) in the
principal or most advantageous market for the asset or liability in
an orderly transaction between market participants on the
measurement date. Valuation techniques used to measure fair value
are performed in a manner to maximize the use of observable inputs
and minimize the use of unobservable inputs.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The accounting standard describes a fair value hierarchy based on
three levels of inputs, of which the first two are considered
observable and the last unobservable, that may be used to measure
fair value, which are the following:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<i>Level 1</i> — Quoted prices in active markets that
are accessible at the market date for identical unrestricted assets
or liabilities.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<i>Level 2</i> — Inputs other than Level 1 that are
observable, either directly or indirectly, such as quoted prices
for similar assets or liabilities; quoted prices in markets that
are not active; or other inputs for which all significant inputs
are observable or can be corroborated by observable market data for
substantially the full term of the assets or liabilities.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
<i>Level 3</i> — Unobservable inputs that are supported
by little or no market activity and that are significant to the
fair value of the assets or liabilities.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
A summary of the financial assets and liabilities that are measured
on a recurring basis at fair value as of March 31, 2014 and
December 31, 2013, is as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="54%"></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></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"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2"> </td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="10" align="center"><b>Fair Value Measurements
Using</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Carrying<br />
Value</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Quoted Prices in<br />
Active Markets<br />
for Identical<br />
Assets</b><br />
<b>(Level 1)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
Other<br />
Observable<br />
Inputs<br />
(Level 2)</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Significant<br />
Unobservable<br />
Inputs</b><br />
<b>(Level 3)</b></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: 1em; TEXT-INDENT: -1em">
<b>March 31, 2014</b></p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </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: 1em; TEXT-INDENT: -1em">
Money market funds</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,883,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,883,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Preferred stock warrant liability</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
<b>December 31, 2013</b></p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Money market funds</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5,233,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">5,233,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap">$</td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </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">
Preferred stock warrant liability</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The convertible notes payable and loan agreements are Level 2
measurements in the fair value hierarchy.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company’s money market funds have been valued on the
basis of valuations provided by third-party pricing services, as
derived from such services’ pricing models. Inputs to the
models may include, but are not limited to, reported trades,
executable bid and asked prices, broker/dealer quotations, prices
or yields of securities with similar characteristics, benchmark
curves or information pertaining to the issuer, as well as industry
and economic events. The pricing services may use a matrix
approach, which considers information regarding securities with
similar characteristics to determine the valuation for a security.
The Company is ultimately responsible for the consolidated
financial statements and underlying estimates. Accordingly, the
Company assesses the reasonableness of the valuations provided by
the third-party pricing services by reviewing actual trade data,
broker/dealer quotes and other similar data, which are obtained
from quoted market prices or other sources.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
No transfers between levels have occurred during the periods
presented.</p>
<p style="MARGIN-BOTTOM: 0px; FONT-SIZE: 1px; MARGIN-TOP: 6px">
 </p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 0pt">
The reconciliation of the Company’s liabilities measured at
fair value on a recurring basis using unobservable inputs
(Level 3) is as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="61%"></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>
<td valign="bottom" width="4%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="14" align="center"><b>Preferred Stock Warrant</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series B</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series C</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series D</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></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: 1em; TEXT-INDENT: -1em">
Balance — December 31, 2012</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">500,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">623,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,130,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Decrease in fair value recorded in other income</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(3,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(116,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(112,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(231,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Balance — March 31, 2013</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">384,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">511,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">899,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="62%"></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>
<td valign="bottom" width="4%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="14" align="center"><b>Preferred Stock Warrant</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series B</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series C</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series D</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></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: 1em; TEXT-INDENT: -1em">
Balance — December 31, 2013</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">386,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">538,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Decrease in fair value recorded in other income</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(2,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(229,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(273,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(504,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Balance — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">2,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">157,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">265,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company’s warrants were valued using the Black-Scholes
option-pricing model. The following assumptions were used in the
Black-Scholes option pricing model to determine the fair value of
the preferred stock warrant liability:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<tr>
<td width="68%"></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>March 31,</b></td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>December 31,</b></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>2013</b></td>
</tr>
<tr>
<td height="8"></td>
<td height="8" colspan="2"></td>
<td height="8" colspan="2"></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">
Expected life</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">4-8 years</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">4-8 years</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">
Risk-free interest rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center"><font style="WHITE-SPACE: nowrap">2.23%-2.72%</font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="center"><font style="WHITE-SPACE: nowrap">2.29%-2.90%</font></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">
Expected volatility</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">64%-65%</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">64%-65%</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">
Expected dividend rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">—  %</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">—  %</td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The preferred stock warrant liability was reclassified into
additional paid-in capital at the fair value in connection with the
IPO on April 15, 2014.</p>
</div>
-3.70
<div>
<p style="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
Accrued expenses consist of the following:</p>
<p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">
 </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="74%"></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"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1.00pt solid #000000"><b>As of<br />
March 31,<br />
2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1.00pt solid #000000"><b>As of<br />
December 31,<br />
2013</b></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">
Accrued expenses</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">236,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">379,000</td>
<td nowrap="nowrap" 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">
Accrued clinical trial costs</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">245,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">610,000</td>
<td nowrap="nowrap" 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">
Accrued contract manufacturing expenses</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">344,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">433,000</td>
<td nowrap="nowrap" 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">
Accrued interest</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">449,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">234,000</td>
<td nowrap="nowrap" 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">
Accrued compensation and benefits</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">219,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">618,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
</tr>
<tr style="font-size:1px;">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td> </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 accrued expenses</p>
</td>
<td valign="bottom"><font style="font-size:8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,493,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom"><font style="font-size:8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">2,274,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
</tr>
<tr style="font-size:1px;">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>
<div>
<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"><b>4.</b></td>
<td align="left" valign="top"><b>ACCRUED EXPENSES</b></td>
</tr>
</table>
<p style="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
Accrued expenses consist of the following:</p>
<p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">
 </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="74%"></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"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1.00pt solid #000000"><b>As of<br />
March 31,<br />
2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1.00pt solid #000000"><b>As of<br />
December 31,<br />
2013</b></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">
Accrued expenses</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">236,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">379,000</td>
<td nowrap="nowrap" 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">
Accrued clinical trial costs</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">245,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">610,000</td>
<td nowrap="nowrap" 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">
Accrued contract manufacturing expenses</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">344,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">433,000</td>
<td nowrap="nowrap" 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">
Accrued interest</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">449,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">234,000</td>
<td nowrap="nowrap" 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">
Accrued compensation and benefits</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">219,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">618,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
</tr>
<tr style="font-size:1px;">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1.00px solid #000000"> </p>
</td>
<td> </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 accrued expenses</p>
</td>
<td valign="bottom"><font style="font-size:8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,493,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
<td valign="bottom"><font style="font-size:8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">2,274,000</td>
<td nowrap="nowrap" valign="bottom">  </td>
</tr>
<tr style="font-size:1px;">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3.00px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>
786986
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company has reported a net loss for all periods presented and,
therefore diluted net loss per common share is the same as basic
net loss per common share.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<tr>
<td width="72%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="6" align="center"><b>Three Months Ended
March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></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: 1em; TEXT-INDENT: -1em">
Net loss</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(2,914,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(5,572,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Accretion of preferred stock issuance costs to redemption value</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Net loss attributable to common stockholders — basic and
diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(2,914,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(5,572,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Weighted-average number of common shares — basic and
diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">786,986</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">612,836</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Net loss per share attributable to common stockholders —
basic and diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(3.70</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(9.09</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
</table>
</div>
10.59
-3666000
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 0pt">
The reconciliation of the Company’s liabilities measured at
fair value on a recurring basis using unobservable inputs
(Level 3) is as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="61%"></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>
<td valign="bottom" width="4%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="14" align="center"><b>Preferred Stock Warrant</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series B</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series C</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series D</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></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: 1em; TEXT-INDENT: -1em">
Balance — December 31, 2012</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">7,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">500,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">623,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">1,130,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Decrease in fair value recorded in other income</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(3,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(116,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(112,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(231,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Balance — March 31, 2013</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">384,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">511,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">899,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="92%" align="center" border="0">
<tr>
<td width="62%"></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>
<td valign="bottom" width="4%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="14" align="center"><b>Preferred Stock Warrant</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series B</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series C</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Series D</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>Total</b></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: 1em; TEXT-INDENT: -1em">
Balance — December 31, 2013</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">4,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">386,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">538,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">928,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Decrease in fair value recorded in other income</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(2,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(229,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(273,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">(504,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </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">
Balance — March 31, 2014</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">2,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">157,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">265,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">424,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
</div>
-3.70
3.34
159610
<div>
<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"><b>8.</b></td>
<td align="left" valign="top"><b>INCOME TAXES</b></td>
</tr>
</table>
<p style="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
The Company did not record a federal or state income tax benefit
for the Company’s losses for the three months ended
March 31, 2014 and 2013 due to the Company’s conclusion
that the valuation allowance is required.</p>
</div>
P8Y8M12D
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>3.</b></td>
<td valign="top" align="left"><b>NET LOSS PER SHARE ATTRIBUTABLE TO
COMMON STOCKHOLDERS</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
Basic net loss per share attributable to common stockholders is
computed by dividing the net loss attributable to common
stockholders by the weighted-average number of common shares
outstanding for the period. During periods in which the Company
earns net income, the Company would allocate participating
securities a proportional share of net income determined by
dividing total weighted average participating securities by the sum
of the total weighted average common shares and participating
securities (the “two-class method”). The
Company’s preferred stock participates in dividends declared
by the Company and are therefore considered to be participating
securities. Participating securities have the effect of diluting
both basic and diluted earnings per share during periods in which
the Company earns net income. During periods in which the Company
incurs a net loss, the Company allocates no portion of the loss to
participating securities because they have no contractual
obligation to share in the losses of the Company. The Company
computes diluted loss per common share after giving consideration
to the dilutive effect of stock options, warrants and unvested
restricted stock that are outstanding to the period, except where
the inclusion of such nonparticipating securities would be
antidilutive.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company has reported a net loss for all periods presented and,
therefore diluted net loss per common share is the same as basic
net loss per common share.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"><!-- Begin Table Head -->
<tr>
<td width="72%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="6" align="center"><b>Three Months Ended
March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></td>
<td valign="bottom"> </td>
</tr>
<!-- End Table Head --><!-- Begin Table Body -->
<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">
Net loss</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(2,914,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"> </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(5,572,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Accretion of preferred stock issuance costs to redemption value</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 1px solid"> </p>
</td>
<td> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Net loss attributable to common stockholders — basic and
diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(2,914,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(5,572,000</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 3px double"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: rgb(0,0,0) 3px double"> </p>
</td>
<td> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Weighted-average number of common shares — basic and
diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">786,986</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">612,836</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Net loss per share attributable to common stockholders —
basic and diluted</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(3.70</td>
<td valign="bottom" nowrap="nowrap">) </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt"> </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">(9.09</td>
<td valign="bottom" nowrap="nowrap">) </td>
</tr>
<!-- End Table Body --></table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The following potentially dilutive securities that were
outstanding, prior to the use of the two-class method, have been
excluded from the computation of diluted weighted-average shares
outstanding, because the inclusion of such securities would have an
antidilutive impact due to the losses reported (in common stock
equivalent shares):</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0"><!-- Begin Table Head -->
<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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>As of<br />
March 31,<br />
2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: rgb(0,0,0) 1pt solid" valign="bottom" colspan="2" align="center"><b>As of<br />
March 31,<br />
2013</b></td>
<td valign="bottom"> </td>
</tr>
<!-- End Table Head --><!-- Begin Table Body -->
<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">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,208,077</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1,142,838</td>
<td valign="bottom" nowrap="nowrap">  </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">
Warrants to purchase redeemable convertible preferred stock</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">128,663</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">128,663</td>
<td valign="bottom" nowrap="nowrap">  </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">
Redeemable convertible preferred stock</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6,826,004</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6,992,694</td>
<td valign="bottom" nowrap="nowrap">  </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">
Convertible notes payable</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">2,894,099</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom" nowrap="nowrap"> </td>
<td valign="bottom" nowrap="nowrap" align="right">
—  </td>
<td valign="bottom" nowrap="nowrap"> </td>
</tr>
</table>
</div>
8030
<div>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td valign="top" width="4%" align="left"><b>9.</b></td>
<td valign="top" align="left"><b>RELATED PARTY
TRANSACTIONS</b></td>
</tr>
</table>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In February 2014, the Company issued convertible promissory notes
to existing investors, as described in Note 5.</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
In April 2013, the Company entered into a laboratory, equipment
sharing, services and license agreement with an entity affiliated
with one of the Company’s directors. Fees recorded offsetting
research and development expenses under this agreement and paid in
the three months ended March 31, 2014 were $44,500. This
agreement was terminated on April 1, 2014. On April 1,
2014, the Company sold used equipment to this entity and received
proceeds for sale of equipment of $30,000 from such sale.</p>
</div>
<div>
<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"><b>2.</b></td>
<td align="left" valign="top"><b>SIGNIFICANT ACCOUNTING
POLICIES</b></td>
</tr>
</table>
<p style="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
There have been no material changes to the significant accounting
policies previously disclosed in the Company’s
Prospectus.</p>
</div>
0.775
6197
14.5074
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The Company has recorded aggregate stock-based compensation expense
related to the issuance of stock option awards in the following
line items in the accompanying consolidated statement of
operations:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<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-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="6" align="center">
<b>Three Months Ended March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></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: 1em; TEXT-INDENT: -1em">
Research and development</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">53,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">56,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
General and administrative</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">95,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">97,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 1px solid"> </p>
</td>
<td> </td>
</tr>
<tr style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" bgcolor="#CCEEFF">
<td valign="top">
<p style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 1em; TEXT-INDENT: -1em">
Total</p>
</td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">148,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"><font style="FONT-SIZE: 8pt">  </font></td>
<td valign="bottom">$</td>
<td valign="bottom" align="right">153,000</td>
<td valign="bottom" nowrap="nowrap">  </td>
</tr>
<tr style="FONT-SIZE: 1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td valign="bottom">
<p style="BORDER-TOP: #000000 3px double"> </p>
</td>
<td> </td>
</tr>
</table>
</div>
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The assumptions used in the Black-Scholes option-pricing model for
stock options granted to employees and directors in exchange for
board services during the three months ended March 31, 2014
and 2013 are as follows:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<tr>
<td width="76%"></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"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="6" align="center"><b>March 31,</b></td>
<td valign="bottom"> </td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" colspan="2" align="center"><b>2013</b></td>
<td valign="bottom"> </td>
</tr>
<tr>
<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">
Expected life</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6 years</td>
<td valign="bottom" nowrap="nowrap">  </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">6 years</td>
<td valign="bottom" nowrap="nowrap">  </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">
Risk-free interest rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right"><font style="WHITE-SPACE: nowrap">1.83%-2.00</font></td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">1.09</td>
<td valign="bottom" nowrap="nowrap">% </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">
Expected volatility</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">60</td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">79</td>
<td valign="bottom" nowrap="nowrap">% </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">
Expected dividend rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">—  </td>
<td valign="bottom" nowrap="nowrap">% </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom" align="right">—  </td>
<td valign="bottom" nowrap="nowrap">% </td>
</tr>
</table>
</div>
<div>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-LEFT: 4%; MARGIN-TOP: 6pt">
The following assumptions were used in the Black-Scholes option
pricing model to determine the fair value of the preferred stock
warrant liability:</p>
<p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 12pt; MARGIN-TOP: 0pt">
 </p>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="76%" align="center" border="0">
<tr>
<td width="68%"></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>March 31,</b></td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>December 31,</b></td>
</tr>
<tr style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">
<td valign="bottom"> </td>
<td valign="bottom">  </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>2014</b></td>
<td valign="bottom"> </td>
<td style="BORDER-BOTTOM: #000000 1pt solid" valign="bottom" align="center"><b>2013</b></td>
</tr>
<tr>
<td height="8"></td>
<td height="8" colspan="2"></td>
<td height="8" colspan="2"></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">
Expected life</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">4-8 years</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">4-8 years</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">
Risk-free interest rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center"><font style="WHITE-SPACE: nowrap">2.23%-2.72%</font></td>
<td valign="bottom"> </td>
<td valign="bottom" align="center"><font style="WHITE-SPACE: nowrap">2.29%-2.90%</font></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">
Expected volatility</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">64%-65%</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">64%-65%</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">
Expected dividend rate</p>
</td>
<td valign="bottom">  </td>
<td valign="bottom" align="center">—  %</td>
<td valign="bottom"> </td>
<td valign="bottom" align="center">—  %</td>
</tr>
</table>
</div>
126000
47000
-2914000
812000
44000
1000
1065000
-2914000
-2914000
14000
44500
30000
-504000
1510000
120000
2000
6650000
0
148000
2980000
-4000
-781000
461000
1246000
27000
10000
1495000
36000
0
3005000
8500000
0
2014-04-01
0.60
1019000
P8Y
0.65
0.0272
P4Y
0.64
0.0223
95000
53000
0.56
P8Y
0
0.59
0.0211
0.0263
0
12000
-504000
-273000
-229000
-2000
0.60
P6Y
5.95
0.0183
0.0200
148000
Upon effectiveness of the 2014 Plan, the number of shares of the Company’s common stock that were reserved for issuance under the 2014 Plan was equal to the sum of (1) 2,400,000 shares plus (2) the number of shares (up to 1,221,651 shares) equal to the sum of the number of shares of the Company’s common stock then available for grant under the 2007 Plan and the number of shares of the Company’s common stock subject to outstanding awards under the 2007 Plan that expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right (subject, in the case of incentive stock options, to any limitation of the Internal Revenue Code) plus (3) an annual increase to be added on the first day of each fiscal year, beginning with the fiscal year ending December 31, 2015 and continuing until, and including, the fiscal year ending December 31, 2024, equal to the least of (A) 1,000,000 shares of the Company’s common stock (B) 4% of the number of shares of the Company’s common stock outstanding on the first day of the fiscal year, or (C) an amount determined by the Company’s board of directors.
The 2014 ESPP initially provides participating employees with the opportunity to purchase up to an aggregate 500,000 of shares of the Company’s common stock. The number of shares of the Company’s common stock reserved for issuance under the 2014 ESPP will automatically increase on the first day of each fiscal year, commencing on January 1, 2015 and ending January 1, 2024, in an amount equal to the least of (i) 600,000 shares of the Company’s common stock, (ii) 1% of the total number of shares of the Company’s common stock outstanding on the first day of the applicable year, or (iii) an amount determined by the Company’s board of directors.
The Company’s board of directors and stockholders approved a 1-for-14.5074 reverse stock split of the Company’s common stock effective March 31, 2014.
In connection with the closing of the IPO, all of the Company's outstanding redeemable convertible preferred stock and convertible notes automatically converted into shares of common stock as of April 15, 2014
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