Table of Contents (Mark One) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10‑K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 28, 2018. ☐ 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 ...

Willdan Group, Inc. (NASDAQ:WLDN) Q4 2018 Results Earnings Conference Call March 7, 2019 5:30 PM ET Company Participants Thomas Brisbin - Chairman and CEO Stacy McLaughlin - CFO Mike Bieber - President Conference Call Participants Moshe Katri - Wedbush Securities Chip Moore - Canaccord Craig Irwin - ROTH Capital Partners Operator [Abrupt Start] December 28, 2018. With us today from management are Thomas Brisbin, Chairman and Chief Executive Officer; Stacy McLaughlin, Chief Financial Officer; and Mike Bieber ...