<SEC-DOCUMENT>0000904454-16-000961.txt : 20160211
<SEC-HEADER>0000904454-16-000961.hdr.sgml : 20160211
<ACCEPTANCE-DATETIME>20160211172351
ACCESSION NUMBER:		0000904454-16-000961
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160211
DATE AS OF CHANGE:		20160211

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STURM RUGER & CO INC
		CENTRAL INDEX KEY:			0000095029
		STANDARD INDUSTRIAL CLASSIFICATION:	ORDNANCE & ACCESSORIES, (NO VEHICLES/GUIDED MISSILES) [3480]
		IRS NUMBER:				060633559
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-30585
		FILM NUMBER:		161412857

	BUSINESS ADDRESS:	
		STREET 1:		1 LACEY PLACE
		CITY:			SOUTHPORT
		STATE:			CT
		ZIP:			06490
		BUSINESS PHONE:		2032597843

	MAIL ADDRESS:	
		STREET 2:		1 LACEY PLACE
		CITY:			SOUTHPORT
		STATE:			CT
		ZIP:			06490

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Abdiel Qualified Master Fund LP
		CENTRAL INDEX KEY:			0001508239
		IRS NUMBER:				208096029
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		410 PARK AVENUE
		STREET 2:		SUITE 530
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		646-496-9351

	MAIL ADDRESS:	
		STREET 1:		89 NEXUS WAY
		CITY:			CAMANA BAY
		STATE:			E9
		ZIP:			KY1-9007
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>s13ga_21016-sturmrugco.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Washington, D.C. 20549</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SCHEDULE 13G</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Under the Securities Exchange Act of 1934</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Sturm, Ruger &amp; Company, Inc.</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(Name of Issuer)</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Common Stock, $1.00 par value</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">864159108</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(CUSIP Number)</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">December 31, 2015</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Date of Event Which Requires Filing of this Statement</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="justify"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">Check the appropriate box to designate the rule pursuant to which this Schedule is filed:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">&#160;</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline"><font style="DISPLAY: inline" face="Wingdings">o </font>&#160;Rule 13d-1(b)</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">&#160;</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline"><font style="DISPLAY: inline" face="Wingdings">x </font>&#160; Rule 13d-1(c)</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline"><font style="DISPLAY: inline" face="Wingdings">o </font>&#160;&#160;Rule 13d-1(d)</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">*&#160;&#160;The remainder of this cover page shall be filled out for a reporting person&#8217;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="justify">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">The information required in the remainder of this cover page shall not be deemed to be &#8220;filed&#8221; for the purpose of Section&#160;18 of the Securities Exchange Act of 1934 (&#8220;Act&#8221;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">CUSIP No. 864159108</font></div>

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<td align="left" colspan="2" valign="top" width="12%" style="BORDER-TOP: black 0.75pt solid; BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Name of Reporting Person:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Abdiel Qualified Master Fund LP</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">I.R.S. Identification No. of above Person (entities only) (voluntary)</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">2</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Check the Appropriate Box if a Member of a Group</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(a) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(b) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>
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<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
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<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">3</font></div>
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<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SEC USE ONLY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
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<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
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<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">4</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Citizenship or Place of Organization</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Cayman Islands</font></div>
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<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
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<td align="left" colspan="3" valign="top" width="14%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">NUMBER OF</font></div>
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<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
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<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">BENEFICIALLY</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">OWNED BY</font></div>
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<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">6</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">993,726 *</font></div>
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<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">EACH</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">REPORTING</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERSON</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">7</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE&#160;&#160;DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">WITH</font></div>
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<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">8</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">993,726 *</font></div>
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<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">9</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">993,726 *</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">10</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: wingdings; DISPLAY: inline">o</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">11</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5.3% **</font></div>
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<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">12</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">TYPE OF REPORTING PERSON</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">PN</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">* As of December 31, 2015</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">** Based on 18,701,530 shares of Common Stock outstanding as of October 30, 2015, as reported in the Issuer&#8217;s Report on Form 10-Q for the period ended September 26, 2015 filed with the Securities and Exchange Commission on November 4, 2015.</font></div>

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<div id="PN" style="WIDTH: 100%; PAGE-BREAK-AFTER: always">
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">CUSIP No. 864159108</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Names of Reporting Person:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Abdiel Capital LP</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">I.R.S. Identification No. of above Person (entities only) (voluntary)</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">2</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Check the Appropriate Box if a Member of a Group</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(a) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(b) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>
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<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">3</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SEC USE ONLY</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">4</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Citizenship or Place of Organization</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Delaware</font></div>
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<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">NUMBER OF</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">BENEFICIALLY</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">OWNED BY</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">6</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">53,082 *</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">EACH</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">REPORTING</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERSON</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">7</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE&#160;&#160;DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">WITH</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">8</font></div>
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<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">53,082 *</font></div>
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<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">9</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">53,082 *</font></div>
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<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">10</font></div>
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<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: wingdings; DISPLAY: inline">o</font></div>
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<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">11</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0.3% **</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">12</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">TYPE OF REPORTING PERSON</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">PN</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">* As of December 31, 2015</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">** Based on 18,701,530 shares of Common Stock outstanding as of October 30, 2015, as reported in the Issuer&#8217;s Report on Form 10-Q for the period ended September 26, 2015 filed with the Securities and Exchange Commission on November 4, 2015.</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Names of Reporting Person:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Abdiel Capital Management, LLC</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">I.R.S. Identification No. of above Person (entities only) (voluntary)</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">2</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Check the Appropriate Box if a Member of a Group</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(a) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(b) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">3</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SEC USE ONLY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">4</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Citizenship or Place of Organization</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Delaware</font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">NUMBER OF</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">BENEFICIALLY</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">OWNED BY</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">6</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">EACH</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">REPORTING</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERSON</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">7</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE&#160;&#160;DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">WITH</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">8</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">9</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">10</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: wingdings; DISPLAY: inline">o</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">11</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5.6% **</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">12</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">TYPE OF REPORTING PERSON</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">OO</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">* As of December 31, 2015 and consisting of&#160;&#160;993,726 shares of Common Stock held by Abdiel Qualified Master Fund LP and 53,082 shares of Common Stock held by Abdiel Capital LP.</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">** Based on 18,701,530 shares of Common Stock outstanding as of October 30, 2015, as reported in the Issuer&#8217;s Report on Form 10-Q for the period ended September 26, 2015 filed with the Securities and Exchange Commission on November 4, 2015.</font></div>

<br>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">CUSIP No. 864159108</font></div>

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<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-TOP: black 0.75pt solid; BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-TOP: black 0.75pt solid; BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Names of Reporting Person:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Abdiel Capital Advisors, LP</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">I.R.S. Identification No. of above Person (entities only) (voluntary)</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">2</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Check the Appropriate Box if a Member of a Group</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(a) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(b) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">3</font></div>
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<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SEC USE ONLY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">4</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Citizenship or Place of Organization</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Delaware</font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">NUMBER OF</font></div>
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<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
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</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">BENEFICIALLY</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">OWNED BY</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">6</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">EACH</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">REPORTING</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERSON</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">7</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE&#160;&#160;DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">WITH</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">8</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">9</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">10</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: wingdings; DISPLAY: inline">o</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">11</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5.6% **</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">12</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">TYPE OF REPORTING PERSON</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">PN, IA</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">* As of December 31, 2015 and consisting of&#160;&#160;993,726 shares of Common Stock held by Abdiel Qualified Master Fund LP and 53,082 shares of Common Stock held by Abdiel Capital LP.</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">** Based on 18,701,530 shares of Common Stock outstanding as of October 30, 2015, as reported in the Issuer&#8217;s Report on Form 10-Q for the period ended September 26, 2015 filed with the Securities and Exchange Commission on November 4, 2015.</font></div>

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<div id="PGBRK" style="WIDTH: 100%; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt">
<div id="FTR">
<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">&#160; </font></div>
</div>

<div id="PN" style="WIDTH: 100%; PAGE-BREAK-AFTER: always">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
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<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">&#160; </font></div>

<div style="WIDTH: 100%" align="left">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">CUSIP No. 864159108</font></div>

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<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-TOP: black 0.75pt solid; BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-TOP: black 0.75pt solid; BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Names of Reporting Person:</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">Colin T. Moran</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">I.R.S. Identification No. of above Person (entities only) (voluntary)</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">2</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Check the Appropriate Box if a Member of a Group</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(a) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">(b) <font style="FONT-FAMILY: wingdings; DISPLAY: inline">o</font></font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">3</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SEC USE ONLY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="2" valign="top" width="12%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">4</font></div>
</td>
<td align="left" colspan="3" valign="top" width="67%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Citizenship or Place of Organization</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">United States</font></div>
</td>
<td valign="top" width="1%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">&#160; </font></td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">NUMBER OF</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">5</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARES</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">BENEFICIALLY</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">OWNED BY</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">6</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED VOTING POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">EACH</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">REPORTING</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">PERSON</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">7</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SOLE&#160;&#160;DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">0</font></div>
</td>
</tr><tr>
<td align="left" colspan="3" valign="top" width="14%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">WITH</font></div>
</td>
<td align="left" valign="top" width="4%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">8</font></div>
</td>
<td align="left" colspan="2" valign="top" width="61%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">SHARED DISPOSITIVE POWER</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">9</font></div>
</td>
<td align="left" colspan="5" valign="top" width="73%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED</font></div>

<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">1,046,808 *</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid">
<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-WEIGHT: bold; DISPLAY: inline">10</font></div>
</td>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Reference is hereby made to the statement on Schedule 13G filed with the Securities and Exchange Commission by the Reporting Persons with respect to the Common Stock of the Issuer on April 22, 2015 (the &#8220;Schedule 13G&#8221;).&#160;&#160;Terms defined in the Schedule 13G are used herein as so defined.</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">The information requested herein is incorporated by reference to the cover pages to this Amendment No. 1 to Schedule 13G .</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Abdiel Capital Management, LLC and Abdiel Capital Advisors, LP serve as the general partner and the investment manager, respectively, of Abdiel Qualified Master Fund LP and Abdiel Capital LP.&#160;&#160;Colin T. Moran serves as managing member of&#160;&#160;Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which serves as the general partner of Abdiel Capital Advisors, LP.&#160;&#160;Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or his pecuniary interest therein.</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="justify"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; DISPLAY: inline">Date:&#160;&#160;February 11, 2016</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">ABDIEL QUALIFIED MASTER FUND LP</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">/s/ Colin T. Moran</font></div>
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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Colin T. Moran, Managing Member</font></div>

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<div style="MARGIN-LEFT: 0pt; DISPLAY: block; MARGIN-RIGHT: 0pt; TEXT-INDENT: 0pt" align="left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; DISPLAY: inline">Colin T. Moran, Managing Member</font></div>

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