<SEC-DOCUMENT>0001104659-15-016290.txt : 20150303
<SEC-HEADER>0001104659-15-016290.hdr.sgml : 20150303
<ACCEPTANCE-DATETIME>20150303170942
ACCESSION NUMBER:		0001104659-15-016290
CONFORMED SUBMISSION TYPE:	NT 10-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20141231
FILED AS OF DATE:		20150303
DATE AS OF CHANGE:		20150303
EFFECTIVENESS DATE:		20150303

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Primoris Services Corp
		CENTRAL INDEX KEY:			0001361538
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623]
		IRS NUMBER:				204743916
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NT 10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34145
		FILM NUMBER:		15670169

	BUSINESS ADDRESS:	
		STREET 1:		2100 MCKINNEY AVENUE, SUITE 1500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201
		BUSINESS PHONE:		214-740-5600

	MAIL ADDRESS:	
		STREET 1:		2100 MCKINNEY AVENUE, SUITE 1500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Primoris Services CORP
		DATE OF NAME CHANGE:	20080821

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Rhapsody Acquisition Corp.
		DATE OF NAME CHANGE:	20060503
</SEC-HEADER>
<DOCUMENT>
<TYPE>NT 10-K
<SEQUENCE>1
<FILENAME>a14-26190_3nt10k.htm
<DESCRIPTION>NT 10-K
<TEXT>


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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">UNITED STATES<br>   SECURITIES AND EXCHANGE COMMISSION<br>   Washington, D.C. 20549<br><br></font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SEC File Number:&#160; 0001-34145 </font></b></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CUSIP Number: 74164F103</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="5" face="Times New Roman" style="font-size:16.0pt;font-weight:bold;">FORM 12b-25</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">NOTIFICATION OF LATE FILING</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="20%" valign="top" style="padding:0in .7pt 0in .7pt;width:20.2%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">(Check   one):</font></i></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.64%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font><font size="2" style="font-size:10.0pt;">&nbsp;Form 10-K</font></p>    </td>
<td width="17%" colspan="2" valign="bottom" style="padding:0in .7pt 0in .7pt;width:17.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form 20-F</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.92%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form 11-K</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form 10-Q</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form 10-D</font></p>    </td>   </tr>
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<td width="13%" valign="top" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><i><font size="2" face="Times New Roman" style="font-size:1.0pt;font-style:italic;">&nbsp;</font></i></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="padding:0in .7pt 0in .7pt;width:16.64%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form N-SAR</font></p>    </td>
<td width="17%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:17.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;Form N-CSR</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.64%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="17%" colspan="2" valign="bottom" style="padding:0in .7pt 0in .7pt;width:17.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.92%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.64%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">For Period   Ended:</font></p>    </td>
<td width="66%" colspan="5" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:66.6%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">12/31/2014</font></p>    </td>   </tr>
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<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="4" valign="bottom" style="padding:0in .7pt 0in .7pt;width:50.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;</font><font size="2" style="font-size:10.0pt;">Transition Report on Form 10-K</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="4" valign="bottom" style="padding:0in .7pt 0in .7pt;width:50.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;</font><font size="2" style="font-size:10.0pt;">Transition Report on Form 20-F</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="4" valign="bottom" style="padding:0in .7pt 0in .7pt;width:50.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;</font><font size="2" style="font-size:10.0pt;">Transition Report on Form 11-K</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="4" valign="bottom" style="padding:0in .7pt 0in .7pt;width:50.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;</font><font size="2" style="font-size:10.0pt;">Transition Report on Form 10-Q</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="4" valign="bottom" style="padding:0in .7pt 0in .7pt;width:50.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;</font><font size="2" style="font-size:10.0pt;">Transition Report on Form N-SAR</font></p>    </td>
<td width="16%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:16.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="15%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:15.68%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="13%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:13.9%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.86%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="29%" colspan="2" valign="bottom" style="padding:0in .7pt 0in .7pt;width:29.44%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">For the   Transition Period Ended:</font></p>    </td>
<td width="53%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:53.8%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="124" style="border:none;"></td>
<td width="96" style="border:none;"></td>
<td width="32" style="border:none;"></td>
<td width="127" style="border:none;"></td>
<td width="126" style="border:none;"></td>
<td width="117" style="border:none;"></td>   </tr> </table>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Read Instructions (on back   page) Before Preparing Form. Please Print or Type.</font></i><b><font size="2" style="font-size:10.0pt;font-weight:bold;"><br>   Nothing in this form shall be construed to imply that the Commission has   verified any information contained herein.</font></b></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: N/A</font></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART I &#151; REGISTRANT INFORMATION</font></b></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Primoris   Services Corporation</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Full Name of   Registrant</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Former Name if   Applicable</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2100   McKinney Avenue, Suite 1500</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Address of   Principal Executive Office <i>(Street and   Number)</i></font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Dallas,   TX 75201</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">City, State and   Zip Code</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART II &#151; RULES 12b-25(b) AND (c)</font></b></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule&nbsp;12b-25(b), the following should be completed. (Check box if appropriate)</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:3.96%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The reason   described in reasonable detail in Part&nbsp;III of this form could not be   eliminated without unreasonable effort or expense</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>    </td>
<td width="3%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:3.96%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font></p>    </td>
<td width="92%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:92.1%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The subject   annual report, semi-annual report, transition report on Form&nbsp;10-K,   Form&nbsp;20-F, Form&nbsp;11-K, Form&nbsp;N-SAR or Form&nbsp;N-CSR,   or portion thereof, will be filed on or before the fifteenth calendar day   following the prescribed due date; or the subject quarterly report or   transition report on Form&nbsp;10-Q or subject distribution report on   Form&nbsp;10-D, or portion thereof, will be filed on or before the   fifth calendar day following the prescribed due date; and</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The accountant&#146;s   statement or other exhibit required by Rule&nbsp;12b-25(c) has been   attached if applicable.</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART III &#151; NARRATIVE</font></b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">State below in reasonable detail why Forms&nbsp;10</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">K, 20</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">F, 11</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">K, 10</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">Q, 10</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">D, N</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">SAR, N</font><font size="2" style="font-size:10.0pt;">-</font><font size="2" style="font-size:10.0pt;">CSR, or the transition report or </font><font size="2" style="font-size:10.0pt;">portion thereof, could not be filed within the prescribed time period.</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Primoris Services Corporation (the &#147;Company&#148;) is unable to file its Annual Report on Form 10-K for the year ended December 31, 2014 (the &#147;Form 10-K&#148;) by the filing deadline because the Company requires more time to complete a review, analysis, and testing of the design and operating effectiveness of the Company&#146;s internal control over financial reporting.&#160; The company is working to finalize and file its Form10-K and expects to do so prior to the ending of the 15-day extension period afforded by Rule 12b-25.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Starting in the fourth quarter of 2014 and through the date of this release, the Company&#146;s management, independent outside counsel and the Audit Committee of the Board of Directors have spent considerable time and resources reviewing and analyzing various issues relating to the methods used by the Company&#146;s subsidiaries to recognize revenue and estimate contingencies for ongoing projects.&#160; The review is not yet completed, but based on the results to date, the Company does not anticipate any adjustments to its previously reported financial results.</font><font size="2" style="font-size:10.0pt;">(1) </font></p>
<p style="margin:0in 0in .0001pt;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Company is unable to determine at this time (i) whether the results of the review will indicate that its internal controls over financial reporting were operating effectively, (ii) the impact of the review on the Company&#146;s annual report on internal control over financial reporting included in the Form 10-K, or (iii) the effect, if any, the review may have on the Company&#146;s business operations and financial statements included in the Form 10-K or any previously reported financial statements.&#160; As the Company&#146;s internal review is ongoing, the Company cannot predict at this time the final outcome of the review nor the outcome of any review that may be conducted by any governmental entities or third parties.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Footnote (1)</font></i><font size="2" style="font-size:10.0pt;">: This notification contains forward-looking statements, including the statement that the Company does not expect the delay in filing its Annual Report to result in any adjustments to its previously reported financial results.&#160; These forward-looking statements involve risks and uncertainties, as well as assumptions which, if they do not fully materialize or prove incorrect, could cause these expectations to differ materially from those expressed or implied by such forward-looking statements.&#160; The risks and uncertainties that could cause these expectations to differ materially from those expressed or implied by such forward-looking statements include the risks that (i) the completion of the review and/or the audit by the Company&#146;s independent registered public accounting firm of the Company&#146;s internal control over financial reporting for the fiscal year ended December 31, 2014, results in an adjustment, material or otherwise, to any previously reported financials; (ii) a government entity or other third party may bring an action, interest, fine, penalty, remedy or other litigation against the Company with respect to the events underlying the review; and (iii) the Company may not be able to effectively improve and expand its financial infrastructure, and internal operating and administrative systems and controls.&#160; Additional risks and uncertainties are included under the captions &#147;Risk Factors&#148; and &#147;Management&#146;s Discussion and Analysis of Financial Condition and Results of Operations,&#148; in the Company&#146;s Annual&#160; Report on Form 10-K for the period ended December 31, 2013 which was filed with the SEC on March 3, 2014, as updated through the Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2014, which was filed with the SEC on November 7, 2014, with both reports available on the Company&#146;s investor relations website at www.prim.com and on the SEC&#146;s website at www.sec.gov.&#160; All forward-looking statements contained herein are based on information available to the Company as of the date hereof, and the Company assumes no obligation to update these forward-looking statements to reflect events that occur or circumstances that exist after the date on which they were made.</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART IV &#151; OTHER INFORMATION</font></b></p>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name and   telephone number of person to contact in regard to this notification</font></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Peter J. Moerbeek</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(214)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">740-5602</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="52%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:52.76%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:16.74%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Area Code)</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.54%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="23%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:23.86%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Telephone Number)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="96%" colspan="5" valign="top" style="padding:0in .7pt 0in .7pt;width:96.62%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Have all other   periodic reports required under Section 13 or 15(d) of the Securities   Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940   during the preceding 12 months or for such shorter period that the registrant   was required to file such report(s) been filed? If answer is no, identify   report(s). </font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="96%" colspan="5" valign="top" style="padding:0in .7pt 0in .7pt;width:96.62%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="52%" valign="top" style="padding:0in .7pt 0in .7pt;width:52.76%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.72%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="padding:0in .7pt 0in .7pt;width:16.74%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.54%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt 0in .7pt;width:23.86%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font><font size="2" style="font-size:10.0pt;">&nbsp;Yes&nbsp;&nbsp;&nbsp;&nbsp;</font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;No</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="52%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:52.76%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:1.72%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:16.74%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:1.54%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="23%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:23.86%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(3)</font></p>    </td>
<td width="96%" colspan="5" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:96.62%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Is it   anticipated that any significant change in results of operations from the   corresponding period for the last fiscal year will be reflected by the   earnings statements to be included in the subject report or portion thereof?</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="96%" colspan="5" valign="top" style="padding:0in .7pt 0in .7pt;width:96.62%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="52%" valign="top" style="padding:0in .7pt 0in .7pt;width:52.76%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.72%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="padding:0in .7pt 0in .7pt;width:16.74%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.54%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt 0in .7pt;width:23.86%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font><font size="2" style="font-size:10.0pt;">&nbsp;Yes&nbsp;&nbsp;&nbsp;&nbsp;</font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&nbsp;No</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="52%" valign="top" style="padding:0in .7pt 0in .7pt;width:52.76%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.72%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="16%" valign="top" style="padding:0in .7pt 0in .7pt;width:16.74%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:1.54%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="23%" valign="top" style="padding:0in .7pt 0in .7pt;width:23.86%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.38%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="96%" colspan="5" valign="top" style="padding:0in .7pt 0in .7pt;width:96.62%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If so, attach an   explanation of the anticipated change, both narratively and quantitatively,   and, if appropriate, state the reasons why a reasonable estimate of the   results cannot be made.</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .5in;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See attached.</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:5.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="line-height:8.0pt;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Primoris Services Corporation</font></b></p>
<div align="center" style="line-height:8.0pt;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">
<hr size="1" width="100%" noshade color="black" align="center">
</font></b></div>
<p align="center" style="line-height:8.0pt;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name of Registrant as Specified in Charter)</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-align:justify;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date</font></p>    </td>
<td width="43%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:43.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">March 3, 2015</font></p>    </td>
<td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.0%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:3.24%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By</font></p>    </td>
<td width="44%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:44.76%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Peter J.   Moerbeek</font></p>    </td>   </tr>
<tr>
<td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="43%" valign="bottom" style="border:none;padding:0in .7pt 0in .7pt;width:43.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.0%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:3.24%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="44%" valign="bottom" style="border:none;padding:0in .7pt 0in .7pt;width:44.76%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Peter J.   Moerbeek</font></p>    </td>   </tr>
<tr>
<td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.88%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="43%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:43.12%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.0%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:3.24%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="44%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:44.76%;">
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive Vice   President, Chief Financial Officer</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative&#146;s authority to sign on behalf of the registrant shall be filed with the form.</font></p>
<p style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="1" face="Times New Roman" style="font-size:5.0pt;font-weight:bold;">&nbsp;</font></b></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="33%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:33.32%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="33%" valign="top" style="padding:0in .7pt 0.375pt .7pt;width:33.32%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">ATTENTION</font></b></p>    </td>
<td width="33%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:33.36%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="100%" colspan="3" valign="top" style="border:solid windowtext 1.0pt;border-top:none;padding:0in .7pt 0in .7pt;width:100.0%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Intentional misstatements or   omissions of fact constitute Federal Criminal Violations (See 18 U.S.C.   1001).</font></b></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="1" face="Times New Roman" style="font-size:5.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">
<hr size="3" width="100%" noshade color="#010101" align="left">
</font></b></div>
</div>
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<div>
<p style="line-height:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="line-height:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Attachment Explanation for Part IV(3)</font></p>
<p style="line-height:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On March 3, 2015, the Company issued a press release announcing its expected (unaudited) results of operations for the fourth quarter of 2014, both of which are incorporated herein by this reference. As is more fully reported therein, revenues in the fourth quarter 2014 decreased by $50.3 million to $487.6 million from $537.9 million for the same period in 2013. The decreased revenues were mainly due to decreases in the Company&#146;s West Construction Services segment. Gross profit for the fourth quarter 2014 declined by $25.3 million to $49.6 million from $74.9 million for the same period in 2013. The decline in gross margin was due to decreases in both the West and East Construction Services segments.</font></p>
<p style="line-height:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">
<hr size="3" width="100%" noshade color="#010101" align="left">
</font></b></div>
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