WLDN
Willdan Group, Inc. · Services · Market cap $1.1B
Insiders sold $5.9M net in the last 90 days ·1 seller, 0 buyers· latest Form 4 filed Sep 16, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$12.5M
reported sales (SEC code S)
Unique Insiders
3
in the rolling window
Latest filing
Sep 17, 2026
Brisbin Thomas Donald
Willdan Group, Inc. (WLDN) has 35 SEC Form 4 filings (54 transaction rows) in the rolling window, disclosed by 3 distinct insiders. Most recent filing: Sep 17, 2026.
Inside the rolling window, 3 insiders at Willdan Group, Inc. reported no open-market purchases and 6 open-market sales totaling $12.5M. The most active filer is Director Brisbin Thomas Donald with 3 filings. Insiders have net sold $12.0M over the trailing 6 months. The most recent open-market filing is a sale of 4,905 shares by Director Brisbin Thomas Donald, dated Sep 15, 2026, worth $389K.
- Industry:Engineering & Construction
- CEO:Michael A. Bieber
- Employees:1,814
- HQ:Anaheim, CA, US
- IPO:2006-11-21
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 4,905 | $389K | Sep 16 | -7.2% | SEC ↗ | |
| Director | Sale | 3,439 | $303K | Sep 9 | -11.7% | SEC ↗ | |
Brisbin Thomas DonaldFirst filing | Director | Sale | 58,757 | $5.2M | Sep 4 | -15.2% | SEC ↗ |
| PRESIDENT AND CEO | Sale | 56,676 | $5.2M | May 15 | -21.1% | SEC ↗ | |
BIEBER MICHAEL AFirst filing | PRESIDENT AND CEO | Sale | 9,991 | $926K | May 14 | -20.7% | SEC ↗ |
Cohen Steven AFirst filing | Director | Sale | 6,000 | $491K | Mar 10 | -12.7% | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does WLDN have?
Willdan Group, Inc. (WLDN) has 35 SEC Form 4 filings (54 transaction rows) in the rolling 365-day window, disclosed by 3 distinct insiders. Most recent filing: Sep 17, 2026.
When was the most recent SEC Form 4 filing for WLDN?
The most recent Form 4 filing for WLDN on Tracefour is dated Sep 17, 2026.
Who is the most active insider at WLDN?
The most active SEC Form 4 filer at WLDN in the rolling window is Director Brisbin Thomas Donald, with 3 filings.
What is the net insider flow at WLDN over the last 6 months?
Over the trailing 180 days, insiders at WLDN have net sold $12.0M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at WLDN in the current window?
Inside the rolling window, insiders at WLDN bought $0 and sold $12.5M based on SEC Form 4 filings.
Can I get alerts for WLDN insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Willdan Group, Inc. (WLDN). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Willdan Group, Inc. is in the Services sector.