<SEC-DOCUMENT>0001179110-21-003742.txt : 20210323
<SEC-HEADER>0001179110-21-003742.hdr.sgml : 20210323
<ACCEPTANCE-DATETIME>20210323181347
ACCESSION NUMBER:		0001179110-21-003742
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210311
FILED AS OF DATE:		20210323
DATE AS OF CHANGE:		20210323

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chow Daniel
		CENTRAL INDEX KEY:			0001452377

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33076
		FILM NUMBER:		21765915

	MAIL ADDRESS:	
		STREET 1:		2401 EAST KATELLA AVENUE
		STREET 2:		SUITE 300
		CITY:			ANAHEIM
		STATE:			CA
		ZIP:			92806

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Willdan Group, Inc.
		CENTRAL INDEX KEY:			0001370450
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ENGINEERING SERVICES [8711]
		IRS NUMBER:				141951112
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0101

	BUSINESS ADDRESS:	
		STREET 1:		2401 EAST KATELLA AVENUE, SUITE 300
		CITY:			ANAHEIM
		STATE:			CA
		ZIP:			92806
		BUSINESS PHONE:		800-424-9144

	MAIL ADDRESS:	
		STREET 1:		2401 EAST KATELLA AVENUE, SUITE 300
		CITY:			ANAHEIM
		STATE:			CA
		ZIP:			92806
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
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        <issuerName>Willdan Group, Inc.</issuerName>
        <issuerTradingSymbol>WLDN</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Chow Daniel</rptOwnerName>
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            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>ANAHEIM</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92806</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
            <otherText></otherText>
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                    <value>D</value>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-19</value>
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                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>6023</value>
                    <footnoteId id="F12"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>57530</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of Common Stock sold in the open market, the proceeds of which were used to pay the tax withholding obligations incurred upon the vesting of performance-based restricted stock units on March 10, 2021.</footnote>
        <footnote id="F2">The price reported in Column 4 is the weig ed average price. These shares were sold in multiple transactions at prices ranging from $44.97 to $45.95, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 (2) through footnote (11).</footnote>
        <footnote id="F3">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $46.00 to $46.99, inclusive.</footnote>
        <footnote id="F4">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $47.05 to $47.89, inclusive.</footnote>
        <footnote id="F5">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $45.91 to $46.87, inclusive.</footnote>
        <footnote id="F6">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $47.05 to $47.97, inclusive.</footnote>
        <footnote id="F7">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $48.12 to $49.00, inclusive.</footnote>
        <footnote id="F8">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $49.23 to $50.20, inclusive.</footnote>
        <footnote id="F9">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $50.28 to $50.76, inclusive.</footnote>
        <footnote id="F10">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $45.84 to $46.67, inclusive.</footnote>
        <footnote id="F11">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $46.84 to $47.80, inclusive.</footnote>
        <footnote id="F12">Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 19, 2021, resulting in the immediate vesting of the restricted stock units as to 6,023 shares of Common Stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Stacy McLaughlin, Attorney-in-fact for Daniel Chow</signatureName>
        <signatureDate>2021-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
