0001104659-06-078483 8-K 1 20061122 1.01 20061129 20061129 Willdan Group, Inc. 0001370450 8711 141951112 DE 1231 8-K 34 001-33076 061245485 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806 800-424-9144 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806 8-K 1 a06-24762_18k.htm CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES