<?xml version='1.0' encoding='UTF-8'?>

      <!-- iXBRL document created with: Toppan Merrill Bridge iXBRL 9.6.8042.36810 -->
      <!-- Based on: iXBRL 1.1 -->
      <!-- Created on: 3/10/2022 6:55:28 PM -->
      <!-- iXBRL Library version: 1.0.8042.36816 -->
      <!-- iXBRL Service Job ID: fd3f7a3b-480a-40ea-88ce-b3f42b79d0ad -->

  <html xmlns:dei="http://xbrl.sec.gov/dei/2021" xmlns="http://www.w3.org/1999/xhtml" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:wldn="http://www.willdan.com/20220310" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrli="http://www.xbrl.org/2003/instance"><head><meta http-equiv="content-type" content="text/html" /><title></title></head><body><div style="margin-top:30pt;"></div><div style="display:none;"><ix:header><ix:hidden><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityCentralIndexKey" id="Tc_CjWjPiT9t0euxdagp1wIHw_2_1">0001370450</ix:nonNumeric><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:AmendmentFlag" id="Tc_VReaxTDDMUCRuCTY8mYkbA_3_1">false</ix:nonNumeric></ix:hidden><ix:references><link:schemaRef xlink:href="wldn-20220310.xsd" xlink:type="simple"></link:schemaRef></ix:references><ix:resources><xbrli:context id="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001370450</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2022-03-10</xbrli:startDate><xbrli:endDate>2022-03-10</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;min-height:11.5pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1pt;padding-bottom:1pt;padding-top:1pt;border-bottom:1.0pt solid #000000;border-top:3.0pt solid #000000;margin:0pt;"><span style="font-size:1pt;line-height:1.19;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><a id="_6b4f613a_c093_4e3b_99ac_a9febabb6a57"></a><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-size:18pt;font-weight:bold;">UNITED STATES</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-size:18pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Washington, DC&#160; 20549</b></p><div style="font-family:'Times New Roman','Times','serif';font-size:10.0pt;margin-bottom:0pt;min-height:1.19em;position:relative;width:100%;"><div style="background-color:#000000;height:1.5pt;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:18pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">FORM&#160;</b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:DocumentType" id="Narr_4IuY0Nmj7EKgXWqKI-PeWQ"><b style="font-weight:bold;">8-K</b></ix:nonNumeric></p><div style="font-family:'Times New Roman','Times','serif';font-size:10.0pt;margin-bottom:0pt;min-height:1.19em;position:relative;width:100%;"><div style="background-color:#000000;height:1.5pt;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">CURRENT REPORT</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Pursuant to Section&#160;13 or 15(d)&#160;of the</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Securities Exchange Act of 1934</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:10pt;white-space:pre-wrap;">Date of Report (Date of earliest event reported):  </span><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate" id="Narr_vRlY3bbv90GCBb3cgx7NLg"><span style="font-size:10pt;">March 10, 2022</span></ix:nonNumeric></p><div style="font-family:'Times New Roman','Times','serif';font-size:10.0pt;margin-bottom:0pt;min-height:1.19em;position:relative;width:100%;"><div style="background-color:#000000;height:1.5pt;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:18pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityRegistrantName" id="Narr_nHn27KRiuEi_L4KAbKhmQQ"><b style="font-weight:bold;">WILLDAN GROUP, INC.</b></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;">(Exact name of registrant as specified in its charter)</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><a id="_c6b1a552_71c0_4834_84aa_8ceb5164d76f"></a><a id="Tc_oBVcKahBcEGT-j0eU8vVKA_2_0"></a><a id="Tc_g-gvGGVo7E28pU2wM8Vu4g_2_2"></a><a id="Tc_ydW00yXmMEyxz6q6vIPssA_2_4"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:bottom;width:2.16%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt;"><span style="font-size:1pt;line-height:1.19;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:bottom;width:2.16%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt;"><span style="font-size:1pt;line-height:1.19;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:31.87%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="Tc_OVKI9KUye0uZ1SEDaHls0g_1_0"><b style="font-size:10pt;font-weight:bold;">Delaware</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:2.16%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.37;margin:0pt;">&#160;&#160;&#160;&#160;</p></td><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityFileNumber" id="Tc_8fdxOcZSNkW3E3sy8ejgkA_1_2"><b style="font-size:10pt;font-weight:bold;">001-33076</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:2.16%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.37;margin:0pt;">&#160;&#160;&#160;&#160;</p></td><td style="vertical-align:top;width:31.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityTaxIdentificationNumber" id="Tc_QsIdtPaR1UOMFtS6RRYaQA_1_4"><b style="font-size:10pt;font-weight:bold;">14-1951112</b></ix:nonNumeric></p></td></tr><tr><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:center;margin:0pt;">(State of other jurisdiction</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:center;margin:0pt;">of incorporation)</p></td><td style="vertical-align:top;width:2.16%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt;"><span style="line-height:1.19;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:31.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:center;margin:0pt;">(Commission File Number)</p></td><td style="vertical-align:top;width:2.16%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt;"><span style="line-height:1.19;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:31.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:center;margin:0pt;">(IRS Employer</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:center;margin:0pt;">Identification No.)</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityAddressAddressLine1" id="Narr_IH_viAzYgEKveb474mwIFw"><b style="font-size:10pt;font-weight:bold;">2401 East Katella Avenue</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;">, </b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityAddressAddressLine2" id="Narr_eN_CNifLZEqz9q-QrNkaNw"><b style="font-size:10pt;font-weight:bold;">Suite 300</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;">, </b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityAddressCityOrTown" id="Narr_QdHlPxlMakuzD0lZDKrrGQ"><b style="font-size:10pt;font-weight:bold;">Anaheim</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;">, </b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="Narr_lSJ3TdqLkEetWC6ddseLUQ"><b style="font-size:10pt;font-weight:bold;">California</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;"> </b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:EntityAddressPostalZipCode" id="Narr__8hBiiQIsUGrYwbQLinyrQ"><b style="font-size:10pt;font-weight:bold;">92806</b></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;">(Address of Principal Executive Offices)</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:6pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:10pt;">Registrant&#8217;s telephone number, including area code: </span><b style="font-size:10pt;font-weight:bold;">(</b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:CityAreaCode" id="Narr_iuXP8CycoEGEyIKPRymbxg"><b style="font-size:10pt;font-weight:bold;">800</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;">) </b><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:LocalPhoneNumber" id="Narr_hAZDLf3j_02PvS5ceT1CGQ"><b style="font-size:10pt;font-weight:bold;">424-9144</b></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:6pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Not Applicable</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;">(Former name or former address, if changed since last report)</p><div style="font-family:'Times New Roman','Times','serif';font-size:10.0pt;margin-bottom:0pt;min-height:1.19em;position:relative;width:100%;"><div style="background-color:#000000;height:1.5pt;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Check the appropriate box below if the Form&#160;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:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><a id="_b3b0b364_56f7_4e33_b05f_65d2b8e0a3bc"></a><a id="Tc_8VS8aVzwVEOtB9Qq7sdsCQ_1_1"></a><a id="Tc_boV9kpRxy0yJGNAnkp6XCA_3_1"></a><a id="Tc_EF1RUIK1qEOPYMJx3hFbwA_5_1"></a><a id="Tc_HZYxhN2ZNkeb3rHAgtMPFg_7_1"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:boolballotbox" name="dei:WrittenCommunications" id="Tc_8P21pBJ19UytTI9VEUeX0Q_1_0"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425).</p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:boolballotbox" name="dei:SolicitingMaterial" id="Tc_i90m1MK78UCj4c8e_HWk8g_3_0"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Soliciting material pursuant to Rule&#160;14A-12 under the Exchange Act (17 CFR 240.14a-12)</p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:boolballotbox" name="dei:PreCommencementTenderOffer" id="Tc_s_oczGD1e0-O4J6knTPIUQ_5_0"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Pre-commencement communications pursuant to Rule&#160;14d-2(b)&#160;under the Exchange Act (17 CFR.14d-2(b))</p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="Tc_ad_Dux9-sUGC_iu2JiU4Ww_7_0"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:96.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Pre-commencement communications pursuant to Rule&#160;13e-4(c)&#160;under the Exchange Act (17 CFR 240.13e-4(c))</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-indent:18pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:18pt;margin:0pt;">Securities registered pursuant to Section 12(b) of the Act:</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:6pt;visibility:hidden;">&#8203;</span></p><a id="_9d7cdcdb_d9c2_4c66_8908_f0b647c7e6e6"></a><div style="margin-left:0pt;"><a id="Tc_fvGYnlzK-kGzjFk3ZM8gng_1_0"></a><a id="Tc_o4R0T3dgx0ettkkUsPWFTw_1_1"></a><a id="Tc_kqJcKt_4tESjLXg8f3axhQ_1_2"></a><a id="Tc_s6N1T1ZlhUWxUCfo_I9ncw_2_2"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:33.27%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td></tr><tr><td style="vertical-align:bottom;width:33.27%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;padding-bottom:1pt;text-align:center;border-bottom:1px solid #000000;margin:0pt;"><b style="font-weight:bold;">Title of each class</b></p></td><td style="vertical-align:bottom;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;padding-bottom:1pt;text-align:center;border-bottom:1px solid #000000;margin:0pt;"><b style="font-weight:bold;">Trading Symbol(s)</b></p></td><td style="vertical-align:bottom;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;padding-bottom:1pt;text-align:center;border-bottom:1px solid #000000;margin:0pt;"><b style="font-weight:bold;">Name of each exchange on which registered</b></p></td></tr><tr><td style="vertical-align:top;width:33.27%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:Security12bTitle" id="Tc_LmB-dZ14nEixOINtfX8K6Q_2_0"><span style="font-size:10pt;">Common Stock, par value $0.01 per share</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" name="dei:TradingSymbol" id="Tc_M5cDkK2YLEqy-gXutn4uLA_2_1"><span style="font-size:10pt;">WLDN</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:33.36%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="Narr_8OMWHPEtoEGkcsrI6AJQFg"><span style="font-size:10pt;">The Nasdaq Stock Market LLC</span></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;">(Nasdaq Global Market)</p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR &#167;230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR &#167;240.12b-2). </p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;">Emerging growth company </span><ix:nonNumeric contextRef="Duration_3_10_2022_To_3_10_2022_uyKPjISzekyOg9TlCRkfUQ" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="Narr_DWYJU4U9DUiJNQyA_S-fuw"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">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. <span style="font-family:'Segoe UI Symbol';">&#9744;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1pt;padding-bottom:1pt;padding-top:1pt;border-bottom:3.0pt solid #000000;border-top:1.0pt solid #000000;margin:0pt;"><span style="font-size:1pt;line-height:1.19;visibility:hidden;">&#8203;</span></p><p style="display:none;font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:0pt;margin:0pt 0pt 10pt 0pt;"><span style="font-size:0pt;line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:27.35pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.3%;border:0;margin:30pt 10.35% 30pt 10.35%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><a id="_0506d83a_ecaf_42eb_bdcf_befb39593e18"></a><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">Item 2.02&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Results of Operations and Financial Condition</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0.05pt 0pt 0pt 0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;min-height:10.0pt;text-indent:36pt;background:#ffffff;margin:0.05pt 0pt 0pt 0pt;">Willdan Group,&#160;Inc. (&#8220;Willdan&#8221;) issued a press release on March 10, 2022.&#160; The press release announced Willdan&#8217;s financial results for the fourth quarter and fiscal year ended December 31, 2021.&#160; A copy of the press release is attached as Exhibit&#160;99.1 hereto and is hereby incorporated herein by reference in its entirety.&#160; The information in this Item 2.02 and the attached Exhibit&#160;99.1 to this Current Report on Form&#160;8-K is being furnished (not filed) pursuant to Item 2.02 of Form&#160;8-K.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;min-height:10.0pt;padding-top:0.05pt;background:#ffffff;margin:0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;padding-top:0.05pt;margin:0pt;"><b style="font-weight:bold;">Item 9.01</b>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<b style="font-weight:bold;">Financial Statements and Exhibits</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0.05pt 0pt 0pt 0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0.05pt 0pt 0pt 0pt;"><i style="font-style:italic;">(d)</i>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<i style="font-style:italic;">Exhibits.</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0.05pt 0pt 0pt 0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:0.05pt;margin:0pt;"><span style="font-size:0.05pt;line-height:1.19;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;table-layout:auto;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:5.96%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:5.87%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:top;width:85.74%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td colspan="2" style="vertical-align:bottom;width:11.83%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.37;text-align:center;margin:0pt 1.8pt 0pt 0pt;"><b style="font-weight:bold;">Exhibit&#160;No.</b></p></td><td style="vertical-align:bottom;width:2.42%;border-bottom:1.0pt solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">&#160;</b></p></td><td style="vertical-align:bottom;width:85.74%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.37;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">Document</b></p></td></tr><tr><td style="vertical-align:top;width:5.96%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:5.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:85.74%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td></tr><tr><td style="vertical-align:top;width:5.96%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:right;margin:0pt 0.8pt 0pt 0pt;">99.1</p></td><td style="vertical-align:top;width:5.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;text-align:center;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:85.74%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><a style="-sec-extract:exhibit;font-family:&quot;'Times New Roman','Times','serif'&quot;;font-size:10pt;" href="wldn-20220310xex99d1.htm"><span style="font-family:'Times New Roman','Times','serif';font-style:normal;font-weight:normal;">Press Release of Willdan Group,&#160;Inc. dated March 10, 2022.</span></a></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:5.96%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;text-align:right;margin:0pt 0.8pt 0pt 0pt;">104</p></td><td style="vertical-align:top;width:5.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:85.74%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">Cover Page Interactive Data File (embedded within the inline XBRL document).</p></td></tr><tr><td style="vertical-align:top;width:5.96%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:right;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:5.87%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:85.74%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0pt 10pt 0pt;"><span style="font-size:10pt;line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:24pt 0pt 0pt 0pt;"><span style="font-size:10pt;">2</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.3%;border:0;margin:30pt 10.35% 30pt 10.35%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;">SIGNATURES</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0.05pt 0pt 0pt 0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0.05pt 0pt 0pt 0pt;">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;line-height:1.19;text-align:center;margin:0.05pt 0pt 0pt 0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:0.05pt;margin:0pt;"><span style="font-size:0.05pt;line-height:1.19;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;table-layout:auto;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:45.34%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td colspan="2" style="vertical-align:top;width:49.82%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 1.8pt 0pt 0pt;">WILLDAN GROUP,&#160;INC.</p></td></tr><tr><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:45.34%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td></tr><tr><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:45.34%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td></tr><tr style="height:17.1pt;"><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">Date: March 10, 2022</p></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">By:</p></td><td style="vertical-align:top;width:45.34%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><i style="font-style:italic;">/s/</i> <i style="font-style:italic;">Creighton K. Early</i></p></td></tr><tr><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:45.34%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">Creighton K. Early</p></td></tr><tr><td style="vertical-align:top;width:50.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:4.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">&#160;</p></td><td style="vertical-align:top;width:45.34%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;">Chief Financial Officer</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;margin:0pt 0.8pt 0pt 0pt;"><i style="font-style:italic;">(Principal Financial Officer)</i></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0pt 10pt 0pt;"><span style="line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0pt 10pt 0pt;"><span style="line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0pt 10pt 0pt;"><span style="line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.37;margin:0pt 0pt 10pt 0pt;"><span style="line-height:1.19;margin-bottom:0pt;visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.19;text-align:center;margin:24pt 0pt 0pt 0pt;"><span style="font-size:10pt;">3</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;margin-left:10.35%;margin-right:10.35%;margin-top:30pt;page-break-after:avoid;width:79.3%;border:0;"></div></body></html>
[{"type": "8-K", "sequence": "1", "filename": "wldn-20220310x8k.htm", "description": "8-K", "secsgml_size_bytes": 45191}]
{"company-data": {"conformed-name": "Willdan Group, Inc.", "cik": "0001370450", "assigned-sic": "8711", "irs-number": "141951112", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-33076", "film-number": "22729213"}, "business-address": {"street1": "2401 EAST KATELLA AVENUE, SUITE 300", "city": "ANAHEIM", "state": "CA", "zip": "92806", "phone": "800-424-9144"}, "mail-address": {"street1": "2401 EAST KATELLA AVENUE, SUITE 300", "city": "ANAHEIM", "state": "CA", "zip": "92806"}}
​
​
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC  20549
FORM
8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
​
Date of Report (Date of earliest event reported):
March 10, 2022
WILLDAN GROUP, INC.
(Exact name of registrant as specified in its charter)
​
​
​
Delaware
001-33076
14-1951112
(State of other jurisdiction
of incorporation)
​
(Commission File Number)
​
(IRS Employer
Identification No.)
​
2401 East Katella Avenue
,
Suite 300
,
Anaheim
,
California
92806
(Address of Principal Executive Offices)
​
Registrant's telephone number, including area code:
(
800
)
424-9144
​
Not Applicable
(Former name or former address, if changed since last report)
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:
​
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).
​
​
☐
Soliciting material pursuant to Rule 14A-12 under the Exchange Act (17 CFR 240.14a-12)
​
​
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR.14d-2(b))
​
​
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
​
Securities registered pursuant to Section 12(b) of the Act:
​
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, par value $0.01 per share
WLDN
The Nasdaq Stock Market LLC
(Nasdaq Global Market)
​
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company
☐
​
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.
☐
​
​
​
Item 2.02             Results of Operations and Financial Condition
Willdan Group, Inc. ("Willdan") issued a press release on March 10, 2022.  The press release announced Willdan's financial results for the fourth quarter and fiscal year ended December 31, 2021.  A copy of the press release is attached as Exhibit 99.1 hereto and is hereby incorporated herein by reference in its entirety.  The information in this Item 2.02 and the attached Exhibit 99.1 to this Current Report on Form 8-K is being furnished (not filed) pursuant to Item 2.02 of Form 8-K.
Item 9.01
Financial Statements and Exhibits
(d)
Exhibits.
​
Exhibit No.
Document
99.1
Press Release of Willdan Group, Inc. dated March 10, 2022.
​
104
​
Cover Page Interactive Data File (embedded within the inline XBRL document).
​
​
​
​
​
​
2
SIGNATURES
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.
​
WILLDAN GROUP, INC.
Date: March 10, 2022
By:
/s/
Creighton K. Early
Creighton K. Early
Chief Financial Officer
(Principal Financial Officer)
​
​
​
​
​
​
​
​
​
​
​
​
​
3