Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 2, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Exact Name of Registrant as Specified in Its Charter) (IRS Employer Identification No.) Delaware 14-1951112 (State or Other Jurisdiction of Incorporation or Organization) 2401 East K ...

Willdan Group, Inc. (NASDAQ:WLDN) Q4 2020 Results Conference Call March 11, 2021 5:30 PM ET Company Participants Al Kaschalk - Investor Relations Tom Brisbin - Chief Executive Officer Stacy McLaughlin - Chief Financial Officer Mike Bieber - President Conference Call Participants Moshe Katri - Wedbush Securities Craig Irwin - ROTH Capital Partners Marc Riddick - Sidoti Operator Good day, everyone, and welcome to the Willdan Group Fourth Quarter and Fiscal Year 2020 Conference Call. Today's conference is bein ...

Willdan Group, Inc. (NASDAQ:WLDN) Q3 2020 Earnings Conference Call November 5, 2020 5:30 PM ET Company Participants Al Kaschalk - Vice President and Investor Relations Thomas Brisbin - Chairman and Chief Executive Officer Stacy McLaughlin - Chief Financial Officer Mike Bieber - President Conference Call Participants Craig Irwin - ROTH Capital Partners Moshe Katri - Wedbush Marc Riddick - Sidoti Operator Good day, ladies and gentlemen. Welcome to the Willdan Group Third Quarter 2020 Conference. Today's call ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended October 2, 2020 For the transition period from to Commission file number 001-33076 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 WILLDAN GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorpo ...

Willdan Group, Inc (NASDAQ:WLDN) Q2 2020 Earnings Conference Call August 6, 2020 5:30 PM ET Company Participants Al Kaschalk – Vice President and Investor Relations Stacy McLaughlin – Chief Financial Officer Thomas Brisbin – Chairman and Chief Executive Officer Mike Bieber – President Conference Call Participants Moshe Katri – Wedbush Craig Irwin – Roth Capital Partners Marc Riddick – Sidoti Operator Good day, everyone, and welcome to the Willdan Group Second Quarter 2020 Conference Call. Today’s conference ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 3, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-33076 WILLDAN GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporat ...

Willdan Group, Inc. (NASDAQ:WLDN) Q1 2020 Results Conference Call May 7, 2020 5:30 PM ET Company Participants Tony Rossi - Financial Profiles, Inc. Thomas Brisbin - Chairman and Chief Executive Officer Stacy McLaughlin - Chief Financial Officer Mike Bieber - President Conference Call Participants Craig Irwin - ROTH Capital Partners Jed Dorsheimer - Canaccord Genuity Operator Good day, and welcome to the Willdan Group First Quarter 2020 Conference Call. Today's conference is being recorded. At this time, I w ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 3, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-33076 WILLDAN GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorpora ...

Willdan Group, Inc. (NASDAQ:WLDN) Q4 2019 Results Conference Call March 5, 2020 5:30 PM ET Company Participants Tony Rossi - Financial Profiles, Inc. Thomas Brisbin - Chairman and Chief Executive Officer Stacy McLaughlin - Chief Financial Officer Mike Bieber - President Conference Call Participants Moshe Katri - Wedbush Securities Craig Irwin - Roth Capital Partners Operator Good day, everyone. Welcome to the Willdan Group Fourth Quarter 2019 Conference Call. Today's conference is being recorded. At this ti ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 27, 2019. ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to . Commission File Number 001‑33076 WILLDAN GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdict ...