<SEC-DOCUMENT>0001415889-25-022512.txt : 20250820
<SEC-HEADER>0001415889-25-022512.hdr.sgml : 20250820
<ACCEPTANCE-DATETIME>20250820173909
ACCESSION NUMBER:		0001415889-25-022512
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250818
FILED AS OF DATE:		20250820
DATE AS OF CHANGE:		20250820

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brisbin Thomas Donald
		CENTRAL INDEX KEY:			0001395188
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33076
		FILM NUMBER:		251237892

	MAIL ADDRESS:	
		STREET 1:		C/O WILLDAN GROUP INC.
		STREET 2:		2401 EAST KATELLA AVENUE, 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]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				141951112
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0102

	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
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                <value>2025-08-18</value>
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            <exerciseDate>
                <value>2017-11-03</value>
                <footnoteId id="F9"/>
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            </expirationDate>
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                <underlyingSecurityTitle>
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                </sharesOwnedFollowingTransaction>
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    <footnotes>
        <footnote id="F1">Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on August 2, 2022. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee effective on August 18, 2025, resulting in the immediate vesting of the restricted stock units as to 21,461 shares of Common Stock.</footnote>
        <footnote id="F2">Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii)  5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date.</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 $112.00 to $112.73, 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 (3), footnote (4), footnote (5), footnote (6), footnote (7) and footnote (8).</footnote>
        <footnote id="F4">The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at $113.01.</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 $108.00 to $108.99, 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 $109.00 to $109.99, 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 $110.00 to $110.99, 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 $111.00 to $111.44, inclusive.</footnote>
        <footnote id="F9">Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Creighton K. Early, Attorney-in-Fact for Thomas D. Brisbin</signatureName>
        <signatureDate>2025-08-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
