| $1B | ||
| $100M | ||
| $54M | ||
| $40M | ||
| $32M | ||
| $31M |
Buys | $0 | 0 | 0 |
Sells | $12,478,180 | 6 | 100 |
| Cohen Steven A | director | 0 | $0 | 1 | $490,920 | $-490,920 |
| Brisbin Thomas Donald | director | 0 | $0 | 3 | $5.87M | $-5.87M |
| BIEBER MICHAEL A | PRESIDENT AND CEO | 0 | $0 | 2 | $6.12M | $-6.12M |
Willdan Group, Inc., including its various subsidiaries, offers a wide array of expert, technical, and advisory services, primarily concentrating its operations within the United States. The company's business activities are structured into two main divisions: Energy, and Engineering and Consulting. The Energy segment delivers a comprehensive suite of services, which includes detailed audits and assessments, the creation of strategic programs, master planning, efforts to reduce energy demand, optimization of electrical grids, benchmarking …
Over the last 12 months, insiders at Willdan Group, Inc. have bought $0 and sold $12.48M worth of Willdan Group, Inc. stock.
On average, over the past 5 years, insiders at Willdan Group, Inc. have bought $10.22M and sold $20.61M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 385,537 shares for transaction amount of $7.75M was made by Forager Fund, L.P. (10 percent owner) on 2023‑08‑03.
| 2026-09-15 | Sale | Brisbin Thomas Donald | director | 4,905 0.0331% | $79.36 | $389,254 | -5.04% | |
| 2026-09-08 | Sale | Brisbin Thomas Donald | director | 3,439 0.0231% | $88.19 | $303,285 | -14.41% | |
| 2026-09-03 | Sale | Brisbin Thomas Donald | director | 58,757 0.3936% | $88.14 | $5.18M | -14.02% | |
| 2026-05-14 | Sale | BIEBER MICHAEL A | PRESIDENT AND CEO | 56,676 0.3747% | $91.58 | $5.19M | -13.12% | |
| 2026-05-13 | Sale | BIEBER MICHAEL A | PRESIDENT AND CEO | 9,991 0.0673% | $92.65 | $925,666 | -12.41% | |
| 2026-03-06 | Sale | Cohen Steven A | director | 6,000 0.0401% | $81.82 | $490,920 | -4.88% | |
| 2025-09-18 | Sale | CHEN MICAH | EXECUTIVE VP & GENERAL COUNSEL | 10,000 0.0684% | $106.00 | $1.06M | -13.32% | |
| 2025-09-18 | Sale | McGinn Dennis V | director | 7,298 0.05% | $106.32 | $775,923 | -13.32% | |
| 2025-08-25 | Sale | Brisbin Thomas Donald | director | 5,182 0.0376% | $118.15 | $612,253 | -19.37% | |
| 2025-08-22 | Sale | Brisbin Thomas Donald | director | 10,615 0.0681% | $104.58 | $1.11M | -15.81% | |
| 2025-08-22 | Sale | Brisbin Thomas Donald | director | 15,525 0.0999% | $104.83 | $1.63M | -15.81% | |
| 2025-08-22 | Sale | Brisbin Thomas Donald | director | 117,595 0.7846% | $108.72 | $12.78M | -15.81% | |
| 2025-08-21 | Sale | Brisbin Thomas Donald | director | 125,000 0.8375% | $104.42 | $13.05M | -11.97% | |
| 2025-08-20 | Sale | Brisbin Thomas Donald | director | 7,405 0.051% | $104.19 | $771,527 | -9.30% | |
| 2025-08-18 | Sale | Brisbin Thomas Donald | director | 130,082 0.8883% | $109.69 | $14.27M | -14.19% | |
| 2025-08-15 | Sale | Downes Cynthia | director | 2,763 0.0182% | $109.43 | $302,355 | -16.72% | |
| 2025-08-14 | Sale | REDER WANDA KAY | director | 850 0.0058% | $119.46 | $101,541 | -21.79% | |
| 2025-08-13 | Sale | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | 7,764 0.0521% | $116.54 | $904,817 | -20.43% | |
| 2025-08-12 | Sale | Cohen Steven A | director | 2,500 0.0178% | $116.34 | $290,850 | -20.62% | |
| 2025-05-28 | Sale | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | 5,000 0.034% | $53.28 | $266,400 | +72.81% |
| BIEBER MICHAEL A | PRESIDENT AND CEO | 249525 1.6382% | $18.62M | 1 | 34 | <0.0001% |
| Brisbin Thomas Donald | director | 96687 0.6348% | $7.22M | 4 | 55 | |
| Forager Fund, L.P. | 10 percent owner | 1255765 8.2442% | $93.73M | 5 | 27 | +7.12% |
| PHRONESIS PARTNERS L P | 10 percent owner | 699608 4.593% | $52.22M | 14 | 10 | <0.0001% |
| Lenocker W Tracy | director | 135000 0.8863% | $10.08M | 7 | 8 | <0.0001% |
| RENKEN KEITH | director | 85400 0.5607% | $6.37M | 23 | 0 | +43.59% |
| McEachern Douglas James | director | 78543 0.5156% | $5.86M | 37 | 0 | +37.94% |
| Tipermas Marc | President of National Programs | 42500 0.279% | $3.17M | 1 | 21 | <0.0001% |
| Holdsworth Raymond W Jr | director | 35122 0.2306% | $2.62M | 15 | 0 | +45.39% |
| McCamant Mallory | Chief Operations Officer | 25000 0.1641% | $1.87M | 6 | 0 | <0.0001% |
| TOUPS JOHN M | director | 24000 0.1576% | $1.79M | 10 | 0 | |
| Shelton Wayne | director | 20000 0.1313% | $1.49M | 3 | 0 | |
| COY DEBRA | director | 8504 0.0558% | $634,738.56 | 1 | 1 | +14.55% |
| Westfall Win | Chairman | 2000 0.0131% | $149,280.00 | 1 | 0 | <0.0001% |
| Smith Ann Rochelle | director | 1000 0.0066% | $74,640.00 | 1 | 0 | <0.0001% |
$24,914,470 | 167 | 5.37% | $1.18B | |
$44,603,696 | 84 | 4.82% | $76.53M | |
$68,701,610 | 72 | 39.53% | $595.3M | |
Willdan Group, Inc. (WLDN) | $11,389,125 | 53 | 29.05% | $1.14B |
$5,570,548 | 53 | 20.28% | $4.32B |
| Increased Positions | 156 | +57.78% | 2M | +15.51% |
| Decreased Positions | 119 | -44.07% | 1M | -13.06% |
| New Positions | 54 | New | 385,361 | New |
| Sold Out Positions | 41 | Sold Out | 393,149 | Sold Out |
| Total Postitions | 307 | +13.7% | 11M | +2.45% |
| Blackrock, Inc. | $135,790.00 | 8.49% | 1.27M | +102,390 | +8.75% | 2025-09-30 |
| Vanguard Group Inc | $114,688.00 | 7.17% | 1.08M | +229,357 | +27.11% | 2025-09-30 |
| Geode Capital Management, Llc | $36,351.00 | 2.27% | 340,815 | +4,063 | +1.21% | 2025-09-30 |
| Two Sigma Investments, Lp | $32,252.00 | 2.02% | 302,380 | +203,912 | +207.09% | 2025-09-30 |
| State Street Corp | $31,926.00 | 2% | 299,322 | +22,357 | +8.07% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $30,313.00 | 1.9% | 284,201 | -146,244 | -33.98% | 2025-09-30 |
| Divisadero Street Capital Management, Lp | $26,998.00 | 1.69% | 253,121 | -25,834 | -9.26% | 2025-09-30 |
| Qube Research & Technologies Ltd | $21,320.00 | 1.33% | 199,883 | +46,180 | +30.05% | 2025-09-30 |
| Wells Fargo & Company/Mn | $20,987.00 | 1.31% | 196,762 | +47,427 | +31.76% | 2025-09-30 |
| Trexquant Investment Lp | $20,021.00 | 1.25% | 187,709 | +120,787 | +180.49% | 2025-09-30 |