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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001558370-22-003337
Filing Date
2022-03-11
Accepted
2022-03-10 19:48:17
Documents
93
Period of Report
2021-12-31

Document Format Files

Seq Description Document Type Size
1 10-K wldn-20211231x10k.htm   iXBRL 10-K 3502223
2 EX-4.2 wldn-20211231xex4d2.htm EX-4.2 28224
3 EX-10.6 wldn-20211231xex10d6.htm EX-10.6 1801215
4 EX-21.1 wldn-20211231xex21d1.htm EX-21.1 27271
5 EX-23.1 wldn-20211231xex23d1.htm EX-23.1 2314
6 EX-31.1 wldn-20211231xex31d1.htm EX-31.1 11163
7 EX-31.2 wldn-20211231xex31d2.htm EX-31.2 12975
8 EX-32.1 wldn-20211231xex32d1.htm EX-32.1 13095
9 GRAPHIC wldn-20211231x10k001.jpg GRAPHIC 49240
  Complete submission text file 0001558370-22-003337.txt   17655086

Data Files

Seq Description Document Type Size
10 EX-101.SCH wldn-20211231.xsd EX-101.SCH 68025
11 EX-101.CAL wldn-20211231_cal.xml EX-101.CAL 105361
12 EX-101.DEF wldn-20211231_def.xml EX-101.DEF 322092
13 EX-101.LAB wldn-20211231_lab.xml EX-101.LAB 741490
14 EX-101.PRE wldn-20211231_pre.xml EX-101.PRE 586452
87 EXTRACTED XBRL INSTANCE DOCUMENT wldn-20211231x10k_htm.xml XML 3622841
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)

IRS No.: 141951112 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-33076 | Film No.: 22730781
SIC: 8711 Services-Engineering Services