<SEC-DOCUMENT>0000904454-17-000068.txt : 20170125
<SEC-HEADER>0000904454-17-000068.hdr.sgml : 20170125
<ACCEPTANCE-DATETIME>20170124183334
ACCESSION NUMBER:		0000904454-17-000068
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170125
DATE AS OF CHANGE:		20170124

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:		17544766

	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>
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<FILENAME>s13ga_012417-sturmrugco.htm
<DESCRIPTION>SCHEDULE 13G/A FOR 1. STURM, RUGER & COMPANY, INC. BY ABDIEL QUALIFIED MASTER FUND LP
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">UNITED STATES</font>&#160;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> SECURITIES AND EXCHANGE COMMISSION</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Washington, D.C. 20549</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">SCHEDULE 13G</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Under the Securities Exchange Act of 1934</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Amendment No. 2)*</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Sturm, Ruger &amp; Company, Inc.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Name of Issuer)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Common Stock, $1.00 par value</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Title of Class of Securities)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">864159108</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(CUSIP Number)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">December 31, 2016</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Date of Event Which Requires Filing of this Statement</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Check the appropriate box to designate the rule pursuant to which this Schedule is filed:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]&#160;&#160;Rule 13d-1(b)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[X]&#160;&#160;Rule 13d-1(c)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]&#160;&#160;Rule 13d-1(d)</div>

<div style="MARGIN-BOTTOM: 8pt"><br>
</div>

<div style="MARGIN-BOTTOM: 12pt; FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-TOP: 12pt">*&#160; The remainder of this cover page shall be filled out for a reporting person'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.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section&#160;18 of the Securities Exchange Act of 1934 ("Act") 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).</div>

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<div>&#160;</div>

<div>CUSIP No. 864159108<br>
</div>

<div><br>
</div>

<div>
<table id="z64e9f01a779e4e4a9c02ac855a27ea1a" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">1</div>
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<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Name of Reporting Person:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Abdiel Qualified Master Fund LP</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">I.R.S. Identification No. of above Person (entities only) (voluntary)</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Check the Appropriate Box if a Member of a Group</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)&#160; [&#160;&#160; ]<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> (b)&#160; [&#160;&#160; ]</div>

<div>&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SEC USE ONLY</div>

<div>&#160;</div>

<div>&#160;</div>
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<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">4</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Citizenship or Place of Organization</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> Cayman Islands</div>

<div>&#160;</div>
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<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>NUMBER OF<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>SHARES<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>BENEFICIALLY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>OWNED BY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>EACH<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>REPORTING<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>PERSON<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> WITH</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">5</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">6</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">538,173 *</div>

<div>&#160;</div>
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<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">7</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE&#160; DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">8</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">538,173 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">9</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">AGGREGATE AMOUNT BENEFICIALLY OWNED</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">538,173 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">10</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">11</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2.9% **</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">12</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">TYPE OF REPORTING PERSON</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">PN</div>

<div>&#160;</div>
</td>
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</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">* As of December 31, 2016</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">** Based on 18,688,511 shares of Common Stock outstanding, which is based on 18,971,854 shares outstanding as of October 31, 2016 reported in the Issuer's Report on Form 10-Q for the period ended October 1, 2016 filed with the Securities and Exchange Commission on November 1, 2016, less 283,343 shares reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on January 4, 2017 as having been repurchased by the Issuer during the fourth quarter of 2016.</div>

<div>&#160;</div>

<div>&#160;</div>

<div><br>
 &#160;</div>

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</div>
</div>

<div>&#160;</div>

<div>CUSIP No. 864159108</div>

<div><br>
 &#160;</div>

<div>
<table id="z50b1274e5c6543ed942b29758d8ec75d" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">1</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Names of Reporting Person:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Abdiel Capital LP</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">I.R.S. Identification No. of above Person (entities only) (voluntary)</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Check the Appropriate Box if a Member of a Group</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)&#160; [&#160; &#160; ]<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> (b)&#160; [&#160;&#160; ]</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SEC USE ONLY</div>

<div>&#160;</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">4</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Citizenship or Place of Organization</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> Delaware</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" rowspan="4" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>NUMBER OF<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>SHARES<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>BENEFICIALLY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>OWNED BY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>EACH<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>REPORTING<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>PERSON<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> WITH</div>
</td>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">5</div>
</td>
<td style="WIDTH: 61.1%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">6</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">20,663 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">7</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE&#160; DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">8</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">20,663 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">9</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">AGGREGATE AMOUNT BENEFICIALLY OWNED</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">20,663 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">10</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">11</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0.1% **</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">12</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">TYPE OF REPORTING PERSON</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">PN</div>

<div>&#160;</div>
</td>
</tr>
</table>
</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">* As of December 31, 2016</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">** Based on 18,688,511 shares of Common Stock outstanding, which is based on 18,971,854 shares outstanding as of October 31, 2016 reported in the Issuer's Report on Form 10-Q for the period ended October 1, 2016 filed with the Securities and Exchange Commission on November 1, 2016, less 283,343 shares reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on January 4, 2017 as having been repurchased by the Issuer during the fourth quarter of 2016.</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: normal; FONT-STYLE: normal">3</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; WIDTH: 100%; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div>&#160;</div>

<div>CUSIP No. 864159108<br>
</div>

<div><br>
</div>

<div>
<table id="z300f3fa03fde413ba3f4043282ff5231" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%" cellspacing="0" cellpadding="0">
<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">1</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Names of Reporting Person:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Abdiel Capital Management, LLC</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">I.R.S. Identification No. of above Person (entities only) (voluntary)</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Check the Appropriate Box if a Member of a Group</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)&#160; [&#160;&#160; ]<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> (b)&#160; [&#160;&#160; ]</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SEC USE ONLY</div>

<div>&#160;</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">4</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Citizenship or Place of Organization</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> Delaware</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" rowspan="4" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>NUMBER OF<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>SHARES<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>BENEFICIALLY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>OWNED BY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>EACH<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>REPORTING<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>PERSON<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> WITH</div>
</td>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">5</div>
</td>
<td style="WIDTH: 61.1%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">6</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">7</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE&#160; DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">8</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">9</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">AGGREGATE AMOUNT BENEFICIALLY OWNED</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">10</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">11</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3.0% **</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">12</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">TYPE OF REPORTING PERSON</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">OO</div>

<div>&#160;</div>
</td>
</tr>
</table>
</div>

<div><br>
</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">* As of December 31, 2016 and consisting of&#160; 538,173 shares of Common Stock held by Abdiel Qualified Master Fund LP and 20,663 shares of Common Stock held by Abdiel Capital LP.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">** Based on 18,688,511 shares of Common Stock outstanding, which is based on 18,971,854 shares outstanding as of October 31, 2016 reported in the Issuer's Report on Form 10-Q for the period ended October 1, 2016 filed with the Securities and Exchange Commission on November 1, 2016, less 283,343 shares reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on January 4, 2017 as having been repurchased by the Issuer during the fourth quarter of 2016.</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: normal; FONT-STYLE: normal">4</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; WIDTH: 100%; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div>&#160;</div>

<div>CUSIP No. 864159108</div>

<div><br>
 &#160;</div>

<div>
<table id="zf9481b3ef0d5416a8e3a5fb7ceb678e9" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%" cellspacing="0" cellpadding="0">
<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">1</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Names of Reporting Person:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Abdiel Capital Advisors, LP</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">I.R.S. Identification No. of above Person (entities only) (voluntary)</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Check the Appropriate Box if a Member of a Group</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)&#160; [&#160;&#160; ]<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> (b)&#160; [&#160;&#160; ]</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SEC USE ONLY</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">4</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Citizenship or Place of Organization</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> Delaware</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" rowspan="4" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>NUMBER OF<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>SHARES<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>BENEFICIALLY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>OWNED BY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>EACH<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>REPORTING<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>PERSON<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> WITH</div>
</td>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">5</div>
</td>
<td style="WIDTH: 61.1%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">6</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">7</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE&#160; DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">8</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">9</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">AGGREGATE AMOUNT BENEFICIALLY OWNED</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">10</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">11</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3.0% **</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">12</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">TYPE OF REPORTING PERSON</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">PN, IA</div>

<div>&#160;</div>
</td>
</tr>
</table>
</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">* As of December 31, 2016 and consisting of&#160; 538,173 shares of Common Stock held by Abdiel Qualified Master Fund LP and 20,663 shares of Common Stock held by Abdiel Capital LP.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">** Based on 18,688,511 shares of Common Stock outstanding, which is based on 18,971,854 shares outstanding as of October 31, 2016 reported in the Issuer's Report on Form 10-Q for the period ended October 1, 2016 filed with the Securities and Exchange Commission on November 1, 2016, less 283,343 shares reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on January 4, 2017 as having been repurchased by the Issuer during the fourth quarter of 2016.</div>

<div><br>
</div>

<div>&#160;</div>

<div>&#160;</div>

<div>&#160;</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: normal; FONT-STYLE: normal">5</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; WIDTH: 100%; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div>&#160;</div>

<div>CUSIP No. 864159108</div>

<div><br>
 &#160;</div>

<div>
<table id="z7c1f164d5f4148bcab44367f33bb0ce0" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%" cellspacing="0" cellpadding="0">
<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">1</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Names of Reporting Person:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Colin T. Moran</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">I.R.S. Identification No. of above Person (entities only) (voluntary)</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">2</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Check the Appropriate Box if a Member of a Group</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)&#160; [&#160;&#160; ]<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> (b)&#160; [&#160;&#160; ]</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SEC USE ONLY</div>

<div>&#160;</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">4</div>
</td>
<td style="WIDTH: 92.22%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Citizenship or Place of Organization</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> United States</div>

<div>&#160;</div>
</td>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top">&#160;</td>
</tr>

<tr>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" rowspan="4" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>NUMBER OF<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>SHARES<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>BENEFICIALLY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>OWNED BY<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>EACH<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>REPORTING<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font>PERSON<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><br>
</font> WITH</div>
</td>
<td style="WIDTH: 7.59%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">5</div>
</td>
<td style="WIDTH: 61.1%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">6</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED VOTING POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">7</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SOLE&#160; DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">0</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 0.19%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">8</div>
</td>
<td style="WIDTH: 31.31%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">SHARED DISPOSITIVE POWER</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">9</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">AGGREGATE AMOUNT BENEFICIALLY OWNED</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">558,836 *</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">10</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">[&#160;&#160; ]</div>

<div>&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 7.4%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">11</div>
</td>
<td style="WIDTH: 92.6%; VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">3.0% **</div>

<div>&#160;</div>
</td>
</tr>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">TYPE OF REPORTING PERSON</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;* As of December 31, 2016 and consisting of&#160; 538,173 shares of Common Stock held by Abdiel Qualified Master Fund LP and 20,663 shares of Common Stock held by Abdiel Capital LP.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">** Based on 18,688,511 shares of Common Stock outstanding, which is based on 18,971,854 shares outstanding as of October 31, 2016 reported in the Issuer's Report on Form 10-Q for the period ended October 1, 2016 filed with the Securities and Exchange Commission on November 1, 2016, less 283,343 shares reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on January 4, 2017 as having been repurchased by the Issuer during the fourth quarter of 2016.</div>

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<div>CUSIP No. 864159108</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center"><u>SCHEDULE 13G AMENDMENT NO. 2 (FINAL AMENDMENT)</u></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">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 and Amendment No. 1 thereto filed on February 11, 2016 (as so amended, the "Schedule 13G").&#160; Terms defined in the Schedule 13G are used herein as so defined.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">The following Items of the Schedule 13G are hereby amended and restated as follows:</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Ownership:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a) through (c):</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">The information requested herein is incorporated by reference to the cover pages to this Amendment No. 2 to Schedule 13G .</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">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; Colin T. Moran serves as managing member of&#160; Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which serves as the general partner of Abdiel Capital Advisors, LP.&#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.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Ownership of Five Percent or Less of a Class:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">If this statement is being filed to report the fact that the Reporting Persons have ceased to be the beneficial owners of more than five percent of the Common Stock, check the following:&#160; [<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold">X</font>]</div>

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<div>&#160;</div>

<div>CUSIP No. 864159108</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">SIGNATURES</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">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.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Date:&#160; January 24, 2017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">ABDIEL QUALIFIED MASTER FUND LP</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Abdiel Capital Management, LLC,</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">its General Partner</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">/s/ Colin T. Moran</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Colin T. Moran, Managing Member</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">ABDIEL CAPITAL LP</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">By:</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Abdiel Capital Management, LLC,</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">its General Partner</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">/s/ Colin T. Moran</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Colin T. Moran, Managing Member</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">ABDIEL CAPITAL MANAGEMENT, LLC</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">/s/ Colin T. Moran</div>
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<td style="WIDTH: 45.03%; VERTICAL-ALIGN: top; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Colin T. Moran, Managing Member</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">ABDIEL CAPITAL ADVISORS, LP</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">By:</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Abdiel Capital Partners, LLC,</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">its General Partner</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">By:</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">/s/ Colin T. Moran</div>
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<td style="WIDTH: 5.56%; VERTICAL-ALIGN: top; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="WIDTH: 45.03%; VERTICAL-ALIGN: top; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Colin T. Moran, Managing Member</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">COLIN T. MORAN</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">/s/ Colin T. Moran</div>
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<td style="WIDTH: 5.56%; VERTICAL-ALIGN: top; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="WIDTH: 45.03%; VERTICAL-ALIGN: top; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Colin T. Moran, Individually</div>

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