# Willdan Group, Inc.: filings

WLDN · Nasdaq · CIK 1370450 · [Industrials](/sectors/industrials.md) · fiscal year ends Jan 1

Pages: [Overview](/companies/wldn.md) · [Financials](/companies/wldn/financials.md) · [Filings](/companies/wldn/filings.md) · [Insiders](/companies/wldn/insiders.md)

## Reports and events: 229 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 556, 8-K 130, 10-Q 53, SC 13G/A 49, 144 39, 3 21, 4/A 21, SC 13G 20, 10-K 18, DEF 14A 18, DEFA14A 16, CORRESP 15, UPLOAD 12, S-8 11, ARS 8, 8-K/A 6, CT ORDER 4, 3/A 3, 5 3, EFFECT 3, S-3 3, SCHEDULE 13G/A 3, 424B5 2, S-3/A 2, SC 13D/A 2, SEC STAFF LETTER 2, 10-K/A 1, FWP 1, SC 13D 1, SCHEDULE 13G 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-23 | 16:32 ET | [8-K](/filings/0001104659-26-110002.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001104659-26-110002 |
| 2026-08-07 | 18:43 ET | [10-Q](/filings/0001104659-26-092196.md) | Quarterly report, period 2026-07-03 | 0001104659-26-092196 |
| 2026-08-06 | 16:16 ET | [8-K](/filings/0001104659-26-092028.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-092028 |
| 2026-06-18 | 16:39 ET | [8-K](/filings/0001104659-26-075795.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-26-075795 |
| 2026-05-08 | 18:39 ET | [10-Q](/filings/0001104659-26-057350.md) | Quarterly report, period 2026-04-03 | 0001104659-26-057350 |
| 2026-05-07 | 16:15 ET | [8-K](/filings/0001104659-26-057151.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-057151 |
| 2026-04-24 | 16:25 ET | [DEF 14A](/filings/0001104659-26-048621.md) | Proxy statement, period 2026-06-17 | 0001104659-26-048621 |
| 2026-02-27 | 18:40 ET | [10-K](/filings/0001104659-26-020767.md) | Annual report, period 2026-01-02 | 0001104659-26-020767 |
| 2026-02-26 | 16:15 ET | [8-K](/filings/0001104659-26-020502.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-020502 |
| 2025-11-07 | 18:48 ET | [10-Q](/filings/0001104659-25-107945.md) | Quarterly report, period 2025-10-03 | 0001104659-25-107945 |
| 2025-11-06 | 16:25 ET | [8-K](/filings/0001104659-25-107776.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-107776 |
| 2025-08-08 | 18:43 ET | [10-Q](/filings/0001558370-25-010820.md) | Quarterly report, period 2025-07-04 | 0001558370-25-010820 |
| 2025-08-07 | 16:30 ET | [8-K](/filings/0001558370-25-010784.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-010784 |
| 2025-06-13 | 16:57 ET | [8-K](/filings/0001558370-25-008623.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001558370-25-008623 |
| 2025-05-09 | 18:39 ET | [10-Q](/filings/0001558370-25-007025.md) | Quarterly report, period 2025-04-04 | 0001558370-25-007025 |
| 2025-05-08 | 16:17 ET | [8-K](/filings/0001558370-25-006982.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-006982 |
| 2025-04-18 | 16:09 ET | [DEF 14A](/filings/0001558370-25-005014.md) | Proxy statement, period 2025-06-12 | 0001558370-25-005014 |
| 2025-03-07 | 18:37 ET | [10-K](/filings/0001558370-25-002429.md) | Annual report, period 2024-12-27 | 0001558370-25-002429 |
| 2025-03-06 | 16:15 ET | [8-K](/filings/0001558370-25-002394.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-002394 |
| 2024-11-18 | 17:47 ET | [8-K](/filings/0001558370-24-015826.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-24-015826 |
| 2024-11-01 | 18:47 ET | [10-Q](/filings/0001558370-24-014072.md) | Quarterly report, period 2024-09-27 | 0001558370-24-014072 |
| 2024-10-31 | 16:15 ET | [8-K](/filings/0001558370-24-014057.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-014057 |
| 2024-08-02 | 18:39 ET | [10-Q](/filings/0001558370-24-010633.md) | Quarterly report, period 2024-06-28 | 0001558370-24-010633 |
| 2024-08-01 | 16:13 ET | [8-K](/filings/0001558370-24-010603.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-010603 |
| 2024-07-11 | 06:01 ET | [SC 13D/A](/filings/0001654954-24-008799.md) | Ownership report, active investor, amended | 0001654954-24-008799 |
| 2024-06-14 | 16:35 ET | [8-K](/filings/0001558370-24-009208.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001558370-24-009208 |
| 2024-05-03 | 18:38 ET | [SC 13D/A](/filings/0001654954-24-005572.md) | Ownership report, active investor, amended | 0001654954-24-005572 |
| 2024-05-03 | 18:38 ET | [10-Q](/filings/0001558370-24-006577.md) | Quarterly report, period 2024-03-29 | 0001558370-24-006577 |
| 2024-05-02 | 16:17 ET | [8-K](/filings/0001558370-24-006549.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-006549 |
| 2024-04-19 | 16:17 ET | [DEF 14A](/filings/0001558370-24-005368.md) | Proxy statement, period 2024-06-13 | 0001558370-24-005368 |
| 2024-03-08 | 18:58 ET | [10-K](/filings/0001558370-24-002758.md) | Annual report, period 2023-12-29 | 0001558370-24-002758 |
| 2024-03-07 | 17:02 ET | [8-K](/filings/0001558370-24-002742.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-24-002742 |
| 2024-03-07 | 16:17 ET | [8-K](/filings/0001558370-24-002729.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-002729 |
| 2024-02-29 | 17:30 ET | [8-K](/filings/0001558370-24-002215.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-24-002215 |
| 2023-12-12 | 16:45 ET | [8-K](/filings/0001104659-23-125397.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-23-125397 |
| 2023-11-03 | 18:46 ET | [10-Q](/filings/0001558370-23-017486.md) | Quarterly report, period 2023-09-29 | 0001558370-23-017486 |
| 2023-11-02 | 16:18 ET | [8-K](/filings/0001558370-23-017427.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-23-017427 |
| 2023-10-05 | 18:49 ET | [8-K](/filings/0001558370-23-016247.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 3.03 Change to security holders’ rights; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-23-016247 |
| 2023-08-04 | 18:47 ET | [10-Q](/filings/0001558370-23-013281.md) | Quarterly report, period 2023-06-30 | 0001558370-23-013281 |
| 2023-08-03 | 16:17 ET | [8-K](/filings/0001558370-23-013238.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-23-013238 |
| 2023-07-12 | 16:52 ET | [8-K](/filings/0001558370-23-011834.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001558370-23-011834 |
| 2023-06-09 | 16:37 ET | [8-K](/filings/0001558370-23-010955.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001558370-23-010955 |
| 2023-06-06 | 06:17 ET | [SC 13D](/filings/0001654954-23-007663.md) | Ownership report, active investor | 0001654954-23-007663 |
| 2023-05-05 | 18:38 ET | [10-Q](/filings/0001558370-23-008172.md) | Quarterly report, period 2023-03-31 | 0001558370-23-008172 |
| 2023-05-04 | 16:10 ET | [8-K](/filings/0001558370-23-008107.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-23-008107 |
| 2023-04-21 | 16:30 ET | [DEF 14A](/filings/0001558370-23-006443.md) | Proxy statement | 0001558370-23-006443 |
| 2023-03-10 | 19:11 ET | [10-K](/filings/0001558370-23-003367.md) | Annual report, period 2022-12-30 | 0001558370-23-003367 |
| 2023-03-09 | 16:20 ET | [8-K](/filings/0001558370-23-003324.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-23-003324 |
| 2023-01-24 | 18:26 ET | [8-K](/filings/0001558370-23-000430.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-23-000430 |
| 2022-11-04 | 19:22 ET | [10-Q](/filings/0001558370-22-016314.md) | Quarterly report, period 2022-09-30 | 0001558370-22-016314 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:12 ET. No prices; not investment advice.