Company · CIK 1370450

# Willdan Group, Inc.

| CIK | [1370450](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001370450) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 8711 — Services-Engineering Services |
| Incorporated in | DE |
| Business address | CA |
| Listed | WLDN (Nasdaq) |
| First annual or quarterly report | 2007-03-27 |

## Offerings

 4 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-277798 | Shelf Effective | 2024-03-08 | 2024-03-19 | 2 |
| 333-254483 | Shelf Effective | 2021-03-19 | 2021-03-29 | 2 |
| 333-217356 | Shelf Effective | 2017-04-18 | 2018-10-05 | 4 |
| 333-136444 | IPO Final prospectus | 2006-08-09 | 2006-11-21 | 6 |

## Filings

 14

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2024-03-19 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1370450/999999999524000688/9999999995-24-000688-index.htm) Declared effective | 333-277798 | 9999999995-24-000688 |
| 2024-03-08 | [S-3](https://www.sec.gov/Archives/edgar/data/1370450/000110465924032459/0001104659-24-032459-index.htm) Shelf registered | 333-277798 | 0001104659-24-032459 |
| 2021-03-29 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1370450/999999999521001190/9999999995-21-001190-index.htm) Declared effective | 333-254483 | 9999999995-21-001190 |
| 2021-03-19 | [S-3](https://www.sec.gov/Archives/edgar/data/1370450/000110465921038674/0001104659-21-038674-index.htm) Shelf registered | 333-254483 | 0001104659-21-038674 |
| 2018-10-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1370450/000104746918006583/0001047469-18-006583-index.htm) Shelf takedown | 333-217356 | 0001047469-18-006583 |
| 2018-10-03 | [424B5](https://www.sec.gov/Archives/edgar/data/1370450/000104746918006552/0001047469-18-006552-index.htm) Shelf takedown | 333-217356 | 0001047469-18-006552 |
| 2017-11-17 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1370450/999999999517003007/9999999995-17-003007-index.htm) Declared effective | 333-217356 | 9999999995-17-003007 |
| 2017-04-18 | [S-3](https://www.sec.gov/Archives/edgar/data/1370450/000104746917002693/0001047469-17-002693-index.htm) Shelf registered | 333-217356 | 0001047469-17-002693 |
| 2006-11-21 | [424B4](https://www.sec.gov/Archives/edgar/data/1370450/000104746906014393/0001047469-06-014393-index.htm) Final prospectus | 333-136444 | 0001047469-06-014393 |
| 2006-11-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1370450/999999999506002409/9999999995-06-002409-index.htm) Declared effective | 333-136444 | 9999999995-06-002409 |
| 2006-11-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1370450/000104746906013475/0001047469-06-013475-index.htm) Amendment | 333-136444 | 0001047469-06-013475 |
| 2006-10-11 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1370450/000104746906012639/0001047469-06-012639-index.htm) Amendment | 333-136444 | 0001047469-06-012639 |
| 2006-09-19 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1370450/000104746906011904/0001047469-06-011904-index.htm) Amendment | 333-136444 | 0001047469-06-011904 |
| 2006-08-09 | [S-1](https://www.sec.gov/Archives/edgar/data/1370450/000104746906010648/0001047469-06-010648-index.htm) Registration filed | 333-136444 | 0001047469-06-010648 |

[All filings of this company](https://equitycapital.markets/filings?cik=1370450) · [CSV](https://equitycapital.markets/filings.csv?cik=1370450)

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Source page: https://equitycapital.markets/company/1370450 · Data: U.S. SEC EDGAR · CC BY 4.0