<SEC-DOCUMENT>0001437749-18-010958.txt : 20180531
<SEC-HEADER>0001437749-18-010958.hdr.sgml : 20180531
<ACCEPTANCE-DATETIME>20180530184820
ACCESSION NUMBER:		0001437749-18-010958
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180529
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
FILED AS OF DATE:		20180531
DATE AS OF CHANGE:		20180530

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PDF SOLUTIONS INC
		CENTRAL INDEX KEY:			0001120914
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				251701361
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31311
		FILM NUMBER:		18869551

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST SAN CARLOS STREET
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
		BUSINESS PHONE:		4082807900

	MAIL ADDRESS:	
		STREET 1:		333 WEST SAN JOSE STREET
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>pdfs20180530_8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>&nbsp;</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>UNITED STATES</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Washington, D.C. 20549</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>FORM 8-K</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>CURRENT REPORT</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Date of Report (Date of Earliest Event Reported): May </b><b>29</b><b>, 2018</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>PDF SOLUTIONS, INC.</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Exact name of registrant as specified in its charter)</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">000-31311</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Commission File Number)</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Delaware</p>
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			<td style="vertical-align:top;width:50%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">25-1701361</p>
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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(State or Other Jurisdiction of Incorporation)</p>
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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(I.R.S. Employer Identification No.)</p>
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</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>333 West San Carlos Street, Suite 1000</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>San Jose, CA 95110</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Address of principal executive offices, with zip code)</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>(408) 280-7900</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Registrant&rsquo;s telephone number, including area code)</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#9744;</p>
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			<td style="vertical-align:top;width:92.3%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>
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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

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			<td style="vertical-align:top;width:7.7%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#9744;</p>
			</td>
			<td style="vertical-align:top;width:92.3%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>
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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<td style="vertical-align:top;width:7.7%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#9744;</p>
			</td>
			<td style="vertical-align:top;width:92.3%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p>
			</td>
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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<td style="vertical-align:top;width:7.7%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#9744;</p>
			</td>
			<td style="vertical-align:top;width:92.3%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</p>
			</td>
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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Emerging growth company &#9744;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. &#9744;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">&nbsp;</p>

<div id="PGBK" style="width: 100%; margin-left: 0pt; margin-right: 0pt">
<div id="PGNUM" style="text-align: center; width: 100%">&nbsp;</div>

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<div id="PGHDR" style="text-align: left; width: 100%">&nbsp;</div>
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<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><u><b>TABLE OF CONTENTS</b></u></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td style="vertical-align:top;width:100%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Item 5.07. Submission of Matters to a Vote of Security Holders</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:100%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:100%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">SIGNATURES</p>
			</td>
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</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<div id="PGBK" style="width: 100%; margin-left: 0pt; margin-right: 0pt">
<div id="PGNUM" style="text-align: center; width: 100%">&nbsp;</div>

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<div id="PGHDR" style="text-align: left; width: 100%">&nbsp;</div>
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<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Item 5.07.</b><b> </b><b>Submission of Matters to a Vote of Security Holders.</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">On May 29, 2018 at the 2018 Annual Meeting of Stockholders, the stockholders of the Company elected each of the director nominees and approved proposals 2 and 3. The final results for the votes regarding each proposal are set forth below. The proposals are described in detail in the Company&rsquo;s Proxy Statement, dated April 27, 2018.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><u>Proposal No. 1</u> Election of Class II Directors:</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table align="center" border="0" cellpadding="0" cellspacing="0" style="width:85%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td style="vertical-align: bottom; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 296px;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>NOMINEE</b><b>S</b><b> FOR </b></p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>CLASS</b><b>&nbsp;</b><b>I</b><b>I DIRECTOR</b><b>S</b></p>
			</td>
			<td style="vertical-align: bottom; border-bottom: 1px solid rgb(0, 0, 0); width: 284px; border-top: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>FOR</b></p>
			</td>
			<td style="vertical-align: bottom; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 284px;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>WITHHELD</b></p>
			</td>
			<td style="vertical-align: bottom; border-bottom: 1px solid rgb(0, 0, 0); width: 291px; border-top: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>BROKER</b></p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>NON-VOTES</b></p>
			</td>
		</tr>
		<tr style="background-color: rgb(204, 238, 255);">
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 296px; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Kimon W. Michaels</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 284px;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">22,301,607</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 284px; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">1,098,171</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 291px; border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">5,891,266</p>
			</td>
		</tr>
		<tr style="background-color: rgb(255, 255, 255);">
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 296px; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Gerald Z. Yin</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 284px;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">23,332,558</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 284px; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">67,220</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 291px; border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">5,891,266</p>
			</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><u>Proposal No. 2</u> Ratification of the appointment of PricewaterhouseCoopers LLP as the Independent Registered Public Accounting Firm for the Company or the fiscal year ending December 31, 2018:</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table align="center" border="0" cellpadding="0" cellspacing="0" style="width:85%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td style="vertical-align: top; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 29.7%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>FOR</b></p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 35.9%; border-top: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>AGAINST</b></p>
			</td>
			<td style="vertical-align: top; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 34.4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>ABSTAIN</b></p>
			</td>
		</tr>
		<tr style="background-color: rgb(204, 238, 255);">
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 29.7%; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">29,193,430</p>
			</td>
			<td style="vertical-align:top;border-bottom:solid 1px #000000;;width:35.9%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">94,576</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 34.4%; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">3,038</p>
			</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><u>Proposal No. </u><u>3</u> Approval, by non-binding vote, of the 2017 compensation awarded to Named Executive Officers:</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table align="center" border="0" cellpadding="0" cellspacing="0" style="width:85%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td style="vertical-align: bottom; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 294px;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>FOR</b></p>
			</td>
			<td style="vertical-align: bottom; border-bottom: 1px solid rgb(0, 0, 0); width: 284px; border-top: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>AGAINST</b></p>
			</td>
			<td style="vertical-align: bottom; border-width: thin thin 1px; border-style: solid; border-color: rgb(0, 0, 0); width: 25%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>ABSTAIN</b></p>
			</td>
			<td style="vertical-align: bottom; border-bottom: 1px solid rgb(0, 0, 0); width: 25%; border-top: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>BROKER</b></p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>NON-VOTES</b></p>
			</td>
		</tr>
		<tr style="background-color: rgb(204, 238, 255);">
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 294px; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">23,346,693</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 284px; text-align: center;">47,754</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 25%; border-left: thin solid rgb(0, 0, 0); border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">5,331</p>
			</td>
			<td style="vertical-align: top; border-bottom: 1px solid rgb(0, 0, 0); width: 25%; border-right: thin solid rgb(0, 0, 0);">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">5,891,266</p>
			</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<div id="PGBK" style="width: 100%; margin-left: 0pt; margin-right: 0pt">
<div id="PGNUM" style="text-align: center; width: 100%">&nbsp;</div>

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<div id="PGHDR" style="text-align: left; width: 100%">&nbsp;</div>
</div>

<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>SIGNATURES</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td colspan="2" style="vertical-align:top;width:38%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>PDF SOLUTIONS, INC.</b></p>
			</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td colspan="2" style="vertical-align:top;width:38%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Registrant)</p>
			</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:35%;">&nbsp;</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
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			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">By:</p>
			</td>
			<td style="vertical-align:top;border-bottom:solid 1px #000000;;width:35%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/&nbsp;Gregory C. Walker</p>
			</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">&nbsp;</td>
			<td style="vertical-align:bottom;width:35%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Gregory C. Walker</p>
			</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:35%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><i>Vice President, Finance</i><i>&nbsp;</i><i>and </i><i>Chief Financial Officer</i></p>
			</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:35%;">&nbsp;</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
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			<td style="vertical-align:top;width:50%;">&nbsp;</td>
			<td style="vertical-align:top;width:3.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:35%;">&nbsp;</td>
			<td style="vertical-align:top;width:12%;">&nbsp;</td>
		</tr>
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			<td style="vertical-align:top;width:50%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Dated:&nbsp;May 30, 2018</p>
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