<SEC-DOCUMENT>0001140361-12-028405.txt : 20120601
<SEC-HEADER>0001140361-12-028405.hdr.sgml : 20120601
<ACCEPTANCE-DATETIME>20120601214020
ACCESSION NUMBER:		0001140361-12-028405
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060614
FILED AS OF DATE:		20120601
DATE AS OF CHANGE:		20120601

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ONEGLIA RAYMOND R
		CENTRAL INDEX KEY:			0001206332

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06314
		FILM NUMBER:		12884580

	MAIL ADDRESS:	
		STREET 1:		C/O O&G INDUSTRIES, INC.
		STREET 2:		112 WALL STREET
		CITY:			TORRINGTON
		STATE:			CT
		ZIP:			06790

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TUTOR PERINI Corp
		CENTRAL INDEX KEY:			0000077543
		STANDARD INDUSTRIAL CLASSIFICATION:	GENERAL BUILDING CONTRACTORS - NONRESIDENTIAL BUILDINGS [1540]
		IRS NUMBER:				041717070
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		15901 OLDEN STREET
		CITY:			SYLMAR
		STATE:			CA
		ZIP:			91342
		BUSINESS PHONE:		818-362-8391

	MAIL ADDRESS:	
		STREET 1:		15901 OLDEN STREET
		CITY:			SYLMAR
		STATE:			CA
		ZIP:			91342

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PERINI CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0305</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000077543</issuerCik>
        <issuerName>TUTOR PERINI Corp</issuerName>
        <issuerTradingSymbol>TPC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001206332</rptOwnerCik>
            <rptOwnerName>ONEGLIA RAYMOND R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TUTOR PERINI CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>15901 OLDEN STREET</rptOwnerStreet2>
            <rptOwnerCity>SYLMAR</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91342</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-06-14</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.19</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>500</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 2</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2012-05-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4558</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27465</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>600000</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 4</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.17 to $21.25, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote of this Form 4.</footnote>
        <footnote id="F2">Shares owned by Raymond A. Oneglia Trust (Raymond R. Oneglia's father).  Mr. Oneglia disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">Represents unrestricted shares of common stock issued to the reporting person as partial compensation for 2012 Board of Directors' annual retainer fee.</footnote>
        <footnote id="F4">Shares owned by O&amp;G Industries, Inc. Mr. Oneglia serves as the Vice Chairman and as a director of O&amp;G.  Mr. Oneglia disclaims beneficial ownership of all of these shares, except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Steven Meilicke, Attorney in fact</signatureName>
        <signatureDate>2012-06-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
