Willdan Group, Inc.
WLDNFigures shown here come from public SEC filings. Dates beside each section show the available history.
How Willdan Group, Inc. Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 17 annual periods. The latest annual period ends Jan 2, 2026. The latest insider filing shown is dated Jun 18, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2026-03-31 | 4,252 | $326K | SEC filing |
| True Wealth Design, LLC | 2026-03-31 | 7 | $536 | SEC filing |
| Root Financial Partners, LLC | 2026-03-31 | 8 | $612 | SEC filing |
| Driehaus Capital Management LLC | 2026-03-31 | 219,904 | $16.8M | SEC filing |
| TWINBEECH CAPITAL LP | 2026-03-31 | 3,986 | $305K | SEC filing |
| Y-Intercept (Hong Kong) Ltd | 2026-03-31 | 17,190 | $1.32M | SEC filing |
| RBF Capital, LLC | 2026-03-31 | 184,600 | $14.1M | SEC filing |
| MML INVESTORS SERVICES, LLC | 2026-03-31 | 16,260 | $1.24M | SEC filing |
| Allspring Global Investments Holdings, LLC | 2026-03-31 | 216,429 | $17.1M | SEC filing |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2026-03-31 | 12,843 | Not shown | SEC filing |
| Cambridge Investment Research Advisors, Inc. | 2026-03-31 | 4,031 | Not shown | SEC filing |
| GEODE CAPITAL MANAGEMENT, LLC | 2026-03-31 | 354,292 | $27.1M | SEC filing |
| Vestcor Inc | 2026-03-31 | 921 | Not shown | SEC filing |
| Rockefeller Capital Management L.P. | 2026-03-31 | 1,008 | $77.2K | SEC filing |
| STONERIDGE INVESTMENT PARTNERS LLC | 2026-03-31 | 9,799 | Not shown | SEC filing |
| Legal & General Group Plc | 2026-03-31 | 13,840 | $1.06M | SEC filing |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 2026-03-31 | 78,292 | $5.99M | SEC filing |
| Concurrent Investment Advisors, LLC | 2026-03-31 | 7,280 | $557K | SEC filing |
| Covestor Ltd | 2026-03-31 | 138 | Not shown | SEC filing |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 2026-03-31 | 18,008 | $1.38M | SEC filing |
- Each value is checked against Willdan Group, Inc.'s share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 5 rows: the filed value is about 1,000 times too small for the share count at Willdan Group, Inc.'s share price.
120 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Willdan Group, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2025-08-22 · Brisbin Thomas Donald: Larger than 61 of the 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-22 · Brisbin Thomas Donald: Larger than 62 of the 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-21 · Brisbin Thomas Donald: Larger than 66 of the 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-21 · Brisbin Thomas Donald: Larger than 64 of the 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-21 · Brisbin Thomas Donald: Larger than 65 of the 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-18 · Brisbin Thomas Donald: Larger than all 67 other insider sales of Common Stock on file. SEC filing
- 2025-08-18 · Brisbin Thomas Donald: Larger than 63 of the 67 other insider sales of Common Stock on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | S — Open market or private sale | −7,956 | 92.65 | SEC filing |
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | S — Open market or private sale | −25,429 | 90.88 | SEC filing |
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | S — Open market or private sale | −276 | 93.74 | SEC filing |
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | S — Open market or private sale | −23,015 | 91.95 | SEC filing |
| 2026-05-13 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | S — Open market or private sale | −9,991 | 92.65 | SEC filing |
| 2026-03-06 | Cohen Steven A · Director | Common Stock | S — Open market or private sale | −6,000 | 81.82 | SEC filing |
| 2025-09-18 | CHEN MICAH · EXECUTIVE VP & GENERAL COUNSEL | Common Stock | S — Open market or private sale | −10,000 | 106.00 | SEC filing |
| 2025-09-18 | McGinn Dennis V · Director | Common Stock | S — Open market or private sale | −7,298 | 106.32 | SEC filing |
Showing 8 of 10 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-17 | Cohen Steven A · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-06-17 | Brisbin Thomas Donald · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-06-17 | McGinn Dennis V · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-06-17 | Downes Cynthia · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-06-17 | Shahidehpour Mohammad · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-06-17 | REDER WANDA KAY · Director | Common Stock | A — Grant, award, or other acquisition | +1,241 | SEC filing |
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Stock Options (Right to Buy) | M — Exercise or conversion of derivative security | −16,667 | SEC filing |
| 2026-05-14 | BIEBER MICHAEL A · PRESIDENT AND CEO | Common Stock | M — Exercise or conversion of derivative security | +40,009 | SEC filing |
Showing 8 of 30 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.