Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001558370-25-002429
Filing Date
2025-03-07
Accepted
2025-03-06 18:37:56
Documents
137
Period of Report
2024-12-27

Document Format Files

Seq Description Document Type Size
1 10-K wldn-20241227x10k.htm   iXBRL 10-K 3563573
2 EX-4.2 wldn-20241227xex4d2.htm EX-4.2 29769
3 EX-19.1 wldn-20241227xex19d1.htm EX-19.1 119527
4 EX-21.1 wldn-20241227xex21d1.htm EX-21.1 21378
5 EX-23.1 wldn-20241227xex23d1.htm EX-23.1 2253
6 EX-31.1 wldn-20241227xex31d1.htm EX-31.1 11070
7 EX-31.2 wldn-20241227xex31d2.htm EX-31.2 12579
8 EX-32.1 wldn-20241227xex32d1.htm EX-32.1 13008
9 GRAPHIC wldn-20241227x10k001.jpg GRAPHIC 49334
  Complete submission text file 0001558370-25-002429.txt   17178021

Data Files

Seq Description Document Type Size
10 EX-101.SCH wldn-20241227.xsd EX-101.SCH 84771
11 EX-101.CAL wldn-20241227_cal.xml EX-101.CAL 124315
12 EX-101.DEF wldn-20241227_def.xml EX-101.DEF 313312
13 EX-101.LAB wldn-20241227_lab.xml EX-101.LAB 824928
14 EX-101.PRE wldn-20241227_pre.xml EX-101.PRE 680683
140 EXTRACTED XBRL INSTANCE DOCUMENT wldn-20241227x10k_htm.xml XML 3814990
Mailing Address 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806
Business Address 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806 800-424-9144
Willdan Group, Inc. (Filer) CIK: 0001370450 (see all company filings)

EIN.: 141951112 | State of Incorp.: DE | Fiscal Year End: 1227
Type: 10-K | Act: 34 | File No.: 001-33076 | Film No.: 25716787
SIC: 8711 Services-Engineering Services
(CF Office: 07 Trade & Services)